LEM Catalog 2005

The New E-SeriesFume Hoods by LEM

Eight Years of

Excellence

CATALOG AND ORDERING GUIDEwww.fumehood.net Build your own fume hood at www.myfumehood.com

Lo ng turiPerformance Fea High

E od NEW Velocity Ho the w

P ies H -SerVERSION 6

Fume Hood SeriesWhat makes LEM and the E-Series line of fume hoods different?With all of the hood choices available today I get asked this question frequently. All hoods must be ASHRAE and UL-1805 certified just to be considered for a laboratory. So what makes our hood different? The simple things. The things that someone should have done years ago. Things like, including light bulbs with the hood and being able to change the bulbs easily from inside the hood. A standard round 10 duct collar to easily match up to most existing duct work. Easy- to-remove access panels for service and cleaning and a knock down capability to meet the growing need for flexibility in the lab of the future. This new catalog features a unique new product to meet the needs of the high performance or low velocity hoods. What makes this hood different from the competition is that it will fit on a standard cabinet and is 30 deep. This can save hundreds of square feet in large university projects and lower air flow requirements saves thousands of operational dollars to the institution utilizing the E-Series HP hood. In addition, you can now visit www.myfumehood.com to build your own fume hood, complete with quotes and shop drawings on standard products 24/7 . We are excited here at Laboratory Equipment Manufacturers, and we see a future filled with tremendous opportunity and keen competition. We are ready for the challenges that lie ahead and look forward to helping you with your fume hood requirements. Cordially,

Speed and Service 10 standard products and accessories 5 standard widths Custom orders welcome

RJ Regan, CEO

16873 144th Avenue / PO Box 26 / Nunica, MI 49448-0026 / F: 616.846.8820

616-846-8846 www.fumehood.net

Contents

Understanding Fume Hood Technology How a Fume Hood Works E-Series Fume Hood Product Line Overview About Laboratory Equipment Manufacturers, Testing & Certifications & Warranty General Specifications Standard Features LEM-HP High Performance Low Velocity Series E1-Series Standard Aerodynamic Hood E2-Series Double Faced E1-Series E3-Series Slim Line E4-Series Walk-In Hood E5-Series ADA (Barrier Free Design) E6-Series Radio Isotope E7-Series Perchloric Acid E8-Series Flat Front E9-Series Demonstration Hood Air Chamber Option Paint Spray Booth Portable Hoods Canopy Hoods Stainless Steel Countertops Epoxy Resin and Stainless Steel Surfaces Optional Base Cabinets Ceiling Enclosures & Finished Backs; Snorkels Plumbing Accessories Electrical Accessories Electrical Specifications Air Monitor Alarm Face Velocity, Exhaust Volume & Static Pressure Duct & Blower Configuration Technical Data & Dimensions Plumbing Rough-In Ordering Guide Color Chart

2 3 4 5 6 7 8 10 12 14 16 18 20 22 24 26 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Inside back cover



About Fume Hood TechnologyGlossary of TermsAir Foil: Shaped or streamlined member at hood entrance designed to enhance movement of air into the hood Air Volume: Rate of airflow, normally expressed in cubic feet per minute (CFM) ASHRAE: American Society of Heating, Refrigerating, and Air Conditioning Engineers, a professional organization that sets industry standards for fume hood testing procedures Auxiliary Air: Supply or makeup air delivered external to the chamber of a fume hood to reduce air consumption Baffle: Panels located across back of hood interior, which control pattern of air moving through the hood Blower: Air moving device (or fan) consisting of motor, impeller, and scroll Bypass: Compensating opening that helps maintain constant volume exhaust from fume hood, regardless of sash position Canopy Hood: Ceiling-suspended ventilating device for noncritical use with heat, water vapor, odors, etc. CFM: Cubic Feet Per Minute, a unit of measurement of air volume Combination Sash: Horizontal panels in a vertically rising frame; see sash Constant Volume: Type of fume hood exhaust system that exhausts the same volume of air, regardless of sash position Containment: Extent to which fumes are confined within the hood compartment Damper: Device installed in duct to control air volume Demonstration Hood: Fume hood with glass panels on two or three sides to improve visibility for demonstrating experiments in a classroom setting Exhaust Volume/Parameters: Quantity of air exhausted by the fume hood; quantity of air required to maintain desired face velocity, expressed in cubic feet per minute (CFM) Face Velocity: Speed of air moving into the fume hood through the face opening (through the sash), measured in feet per minute (FPM) FPM: Feet per minute; measurement of air velocity Liner: Fume hood interior sides, back, and top, including baffle Lintel: Portion of fume hood front located above access opening Louvers: Slit-like openings in the lintel that allow bypass air to enter the hood when the sash is closed NFPA: National Fire Protection Association Negative Pressure: Pressures lower than one atmosphere Positive Pressure: Pressures higher than one atmosphere Restricted Bypass Fume Hood: Fume hood operating type, designed with limited bypass area; commonly used in conjunction with Variable Air Volume (VAV) exhaust systems and restricted sash opening designs Sash: Sliding glass panel set in the fume hood face that provides access to the hood interior Service Fitting/Plumbing: Water faucets and gas valves mounted on or fastened to the fume hood Static Pressure: Air pressure, or resistance, in fume hood or duct, expressed in inches of water U.L. 1805: Underwriters Laboratories certification that verifies conformance to electrical, mechanical, and airflow standards Variable Air Volume (VAV): Type of fume hood exhaust system that typically maintains constant fume hood face velocity by adjusting blower motor speed or a balance damper in response to changes in sash position Velocity: Speed of air, measured in feet per minute (FPM) Velocity Pressure: Force per square inch applied by moving air Volume: Quantity of air, usually measured in cubic feet per minute (CFM) Work Surface: Top material; area in fume hood where apparatus rests and where work takes place

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How a Fume Hood WorksThe fume hood is an important safety device in any laboratory. At Laboratory Equipment Manufacturers, we believe that the more you understand about how a fume hood operates, the easier it will be to choose the right one for your application. There are many variables involved in exhausting the fumes that are generated inside the fume hood. First, there must be an adequate pull of air, known as face velocity, from the hood through the ductwork. Face velocity is measured in feet per minute (FPM) at the vertical sash plane. In order to maintain consistent face velocity, a certain quantity of air, or exhaust volume, is required. Exhaust volume is measured in cubic feet per minute (CFM). Sash position also affects face velocity. The sash is a transparent, movable panel of safety glass, which is set in the fume hood face. It provides access to the hood interior during set-up procedures and minimizes contact with dangerous fumes when the hood is being operated with the sash lowered. Airflow patterns into the hood are influenced by the airfoil. Located just beneath the sash, the airfoil decreases turbulence of the air entering the hood.

Sash Positions

Baffle PositionsLocated across the inside rear of the hood, the baffle controls airflow patterns through the hood. Baffle panels are located in a position determined to be most effective for the application. LEM fume hoods are constructed and tested with safety and simplicity in mind. That is why the baffles are nonadjustable and fixed. The hoods have been tested for both heavier and lighter than air applications. This eliminates the potential risk caused by having to adjust baffles depending on the application, which allows for a greater degree of safety compared with hoods that use adjustable baffles, for two reasons: First, the researcher doesnt need to know the baffle position required for the experiment; and, second, doesnt need to know the chemical characteristics in order to feel confident that the hood will safely contain the effluents being used. For more detailed information, please see the following pages in this catalog. Electrical Specifications page 38 Face Velocity, Exhaust Volume and Static Pressure page 40 Duct and Blower Configuration page 41 Plumbing Rough-in Diagram page 43 And if any questions arise that you cannot find the answers to here, please call us at 616-846-8846. We look forward to the opportunity to help!

Sash Open

Sash Closedtelephone 616.846.8846

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E-Series Fume Hood Product Line OverviewLEM is a responsive and versatile company, continuously updating and expanding our product line to meet the ever-changing needs of our customers. Featured here are the ten E-Series fume hoods in our standard product line. Most are available in five standard widths: 36, 48, 60, 72 and 96.

LEM-HP High Performance Low Velocity Series (page 8)

E1-Series Standard Aerodynamic Hood (page 10)

E2-Series Double Faced E1-Series (page 12)

E3-Series Slim Line (page 14) E4-Series Floor Mounted Hood (page 16)

E5-Series ADA (Barrier Free Design) (page 18)

E6-Series Radio Isotope (page 20) E7-Series Perchloric Acid (page 22) E8-Series Flat Front (page 24)

Dont see exactly what you need here? Ask us! Custom orders are our favorite calls. And youll be amazed at the speed with which we build oneor a hundredjust for you!E9-Series Demonstration Hood (page 26)

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About Laboratory Equipment Manufacturers, LLCNow in our eighth year of operation as Laboratory Equipment Manufacturers, LLC, our company was created by the merger of two veteran manufacturing companies: Stainless Innovations, which provided quality products to the pharmaceutical, clean room, and biocontainment industries; and LEM, which brought to the merger nearly a quarter century of fume hood manufacturing experience. We offer the technical expertise, testing, quality control, and manufacturing competencies of the industry giants, with the priceless benefit of a flexible, personal, customer-oriented approach to business. We listen to you, we learn about you, we build you what you need, when you need it. Call us. Once you get to know LEM, we think youll always choose LEM.

Heres what some satisfied customers have to say:

When all else fails, you call LEM.Our project was originally bid with a competitors hood, but weve since switched to LEM. Communication with the other company was nearly impossibleour phone calls were never returnedbut when all else fails, you call LEM. When I call you, I talk to a live person who knows the products, has answers to my questions, and can solve my issues. Its this type of service that makes you different and sets you apart from your competitors. Cindy Hall

Quality Control Testing and Certification LEM adheres to the strictest standards for fume hood design, manufacture, and operation. Testing procedures are in accordance with standards set forth by ANSI/ASHRAE-110 and UL-1805 for each type and size of hood, both standard and custom models. Our quality control team inspects and tests every hood we build at critical stages in the manufacturing process. We stand behind every fume hood we build.

Warranty Laboratory Equipment Manufacturers, LLC warrants the materials and workmanship of its products for one (1) year from time of shipment. This warranty is only valid under normal and customary use for the type of fume hood delivered and does not cover damage incurred during shipping, installation, or damage caused by misuse of equipment. Laboratory Equipment Manufacturers, LLC, is not responsible for any damage or injury caused by the misuse or incorrect operation of its products, whether accidental or intentional.

Thank you and the crew of first-class fabricators that you employ. They did a superior job of fabricating and finishing a truly first class piece of equipment. In todays fastpaced industrial setting it is a real treat to know that true craftsmen still exist and that pride in work is not just a slogan, it can be seen in the end productthe result was overwhelmingly accepted at delivery. Steve S., Pharmacia

A truly first class piece of equipment

LEM is willing to go the extra mileIn addition to supplying us with quality products, on time, at a competitive price, LEM is able to provide us with a distinct competitive advantage due to their ability to offer us custom products and short lead times. Eric A., CIF Furniture Limitedtelephone 616.846.8846

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General SpecificationsA. The fume hood shall be UL 1805-rated with doublewall construction consisting of an outer shell of sheet steel and an inner liner of corrosion-resistant material as specified. Double wall will house and conceal steel framing members, attaching brackets and remote operating service fixture mechanisms. Frame, inner and outer shell will be assembled, fastened and connected into a rigid, self-supporting entity. B. Wall thickness will be 5 (127 mm) maximum, providing maximum interior work area. Access to chase areas between walls shall be provided by removable panels on hood exterior and through removable interior excess panels. C. A fluorescent light fixture is standard and shall be installed on exterior of hood liner. The light shall have a safety glass panel sealed, fastened to hood interior to isolate light fixture from fumes and vapors. Fixture shall be largest possible for fume hood size, up to 48 on six-foot superstructure. Eight-foot superstructures shall have two 24 fixtures. Ballast shall be two-lamp T-8, rapid start, UL-listed and sound-rated. Fixture interior shall be finished with a white, high reflecting, plastic enamel. Lamps are included. D. Average interior illumination levels of the work area shall be 80 footcandles at working area. Work area shall be defined as that area inside the superstructure from side to side, from face of baffle to the inside face of sash and from the working surface to a height of 28. I. H. Perimeter of access opening shall have a streamlined shape with entry of the hood being angled. The bottom horizontal airfoil creates a nominal 1 bypass when the sash is in the closed position. The airfoil is stainless steel and is removable without the use of special tools. There shall be no metallic fastener inside of hood. Screws with plastic caps on heads are unacceptable. G. The interior end panels are furnished with a removable panel providing access to the service piping and valves to facilitate installation and maintenance. Panels do not require special tools, exposed fasteners or gaskets. F. Baffle shall provide controlled air vectors into and through the fume hood and be fabricated of the same thickness material as the liner. Exhaust slots shall be provided with upper and lower slots. A horizontal slot, located 18 above the work surface, shall be provided. A minimum of 48 of full-height interior workspace is acceptable at the extreme upper portion of the fume hood. Fume hood shall maintain essentially constant exhaust volume at any sash position. E. Fume hood sash shall be full view type providing a clear and unobstructed side-to-side view of fume hood interior and service fixture connections. A singleweight, 1/2 thick steel plate counterbalance, located at the rear of the hood and attached with .125 7x7 nylon coated aircraft type cable. Cables ride on 2 diameter nylon ball bearing pulleys. The continuous, flush, full-finger-lift sash, riding on a continuous PVC guide, can be lifted easily from any point. All sashes use 7/32 laminated safety glass set in U-shaped neoprene channels for maximum safety and visibility.

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STANDARD FEATURES

IronPhosphateBathforMetalParts FiveStandardSizesfrom36to96 ConstantVelocity Knock-downCapability Round12StainlessSteelDuctCollar Easy-to-access T-8 Fluorescent Light(s) with Bulbs Full Frame Construction

Powder Coat Epoxy Paint

Full Length Sash Guide

Polyresin Liner

Removable Baffles

Cup Sink

Single Weight Counter Balance Stainless Steel Sash Removable Exterior Panels Access Panel Stainless Steel Air Foil Continuous, Recessed Finger Lift LaminatedSafetyGlass(7/32) Epoxy Work Surface No Exposed Fasteners on Hood Exteriortelephone 616.846.8846

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The E-Series HP: High Performance, Low VelocityThe choice for retrofit!The HP/LV is the choice for replacing old, inefficient hoods because it fits on a standard hood footprint and is not extra deep like most HP style hoods today. Unique hood design and flush mount airfoil provide exceptional containment at lower face velocity and volume (CFMs)The E-Series HP is an airfoil-type hood with a 45-degree angle around the fascia to allow smoother airflow across the fascia. This results in minimized air turbulence and increased safety and performance of the hood. The superstructure is designed to remove all fumes, both those heavier and lighter than air. Baffle positions are fixed for both safety and consistent and complete containment of fumes at all sash positions. The interior of the hood is lined with a UL-certified poly resin board. The exterior is fabricated of cold rolled steel and finished with acid wash and powder coat. The solid frame galvanized steel construction provides both stability and convenient knock-down ability to improve flexibility. Posts are 5 (127 mm) wide. Easy-to-remove interior access panels allow for easier maintenance and operation.U.L. 1805 Classified(continued on page 9)

Flush mount airfoil and integrated worksurface achieve a smoother flow of air and better containment.The profile and isometric view of the airfoil and worksurface are shown here. It also incorporates an integrated spill trough to catch inadvertant spills and enhance technician safety. All of this is accomplished at 60 FPM with standard depth(30)countertops. This allows for significant initial cost savings as well as operational savings year after year.

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LEM-HP STANDARD FEATURES FramelessSash

T-8 fluorescent lights and bulbs are included standard. A round 12 standard duct collar is included to easily match up to most existing ductwork without costly additional transition pieces. The airfoil is fabricated of high grade 304 stainless steel to minimize rusting and corrosion that can occur with painted surface airfoils. The standard vertical sliding sash features a full-length finger lift. The sash panels are 7/32 safety glass. The counter balance is a single weight at the rear of the hood, attached with a 7 x 7 aircraft-type nylon coated cable. The .125 diameter cable rides on quiet and corrosion resistant nylon and stainless steel ball bearing pulleys. All hoods include standard equipment and may be shipped pre-wired and preplumbed as an option (see Optional Accessories). Standard sizes are 36-96, with custom sizes available upon request.LEM- HP- 48 AIRFOIL FUME HOOD

T-8FluorescentLight(bulbsincluded) PolyResinLiner NoExposedFasteners KnockDownCapability PowderCoatFinish FullFrameConstruction AirflowAlarm

OPTIONAL ACCESSORIESItem Light Switch Blower Switch 120 v GFI Blowers Gas Service Air Service Vac Service Cold Water Service Pre-Plumb Service Pre-Wire Service Sash Stop Ceiling Enclosures Chain & SprocketSash Automatic PushButton Sash LEM Pt# LTSW BLSW GFI BL FXTGAS FXTAIR FXTVAC FXTCWGN PREPLUMB PREWIRE CE Page # 37 37 37 Call 36 36 36 36 36 37 35

Dimensions Superstructure Worktop Hoodopening CFM 444 SP .25

W 48 48 38

H 56 11/4 28

D 323/4 30

EXHAUST PARAMETERS

Blower Model # BL-HP-48 (Sold separately)

Shipping weight approximately: 200 pounds LEM- HP- 60 AIRFOIL FUME HOOD


W 60 60 50

H 56 11/4 28

D 323/4 30

EXHAUST PARAMETERS

SASHSTOP Call


Shipping weight approximately: 225 pounds LEM- HP- 72 AIRFOIL FUME HOOD

CHNSPRKT Call APBS Call


W 72 72 62

H 56 11/4 28

D 323/4 30

APPLICATIONS: University Private Industry

EXHAUST PARAMETERS


Shipping weight approximately: 270 poundstelephone 616.846.8846

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The E1-Series: Standard Aerodynamic DesignAirfoil type hood Stability Safety Easy to install, operate and maintainThe E1-Series is an airfoil-type hood with a 45-degree angle around the fascia to allow smoother airflow across the fascia. This results in minimized air turbulence and increased safety and performance of the hood. The superstructure is designed to remove all fumes, both those heavier and lighter than air. Baffle positions are fixed for both safety and consistent and complete containment of fumes at all sash positions. The interior of the hood is lined with a UL-certified poly resin board. The exterior is fabricated of cold rolled steel and finished with acid wash and powder coat. The solid frame galvanized steel construction provides both stability and convenient knock-down ability to improve flexibility. Posts are 5 (127 mm) wide. Easy-to-remove interior access panels allow for easier maintenance and operation. T-8 fluorescent lights and bulbs are included standard. A round 12 standard duct collar is included to easily match up to most existing ductwork without costly additional transition pieces. The airfoil is fabricated of high grade 304 stainless steel to minimize rusting and corrosion that can occur with painted surface airfoils. The standard vertical sliding sash features a full-length finger lift. The sash panels are 7/32 safety glass. The counterbalance is a single weight at the rear of the hood, attached with a 7 x 7 aircraft-type nylon coated cable. The .125 diameter cable rides on quiet and corrosion resistant nylon and stainless steel ball bearing pulleys. All hoods include standard equipment and are shipped pre-wired and pre-plumbed. Standard sizes are listed here, with custom sizes available upon request.

U.L. 1805 Classified

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LEM-E1 STANDARD FEATURES FramelessSashLEM- 1 1 1 - 48 AIRFOIL FUME HOOD

T-8FluorescentLight(bulbsincluded) StainlessSteelAirfoil PolyResinLiner NoExposedFasteners KnockDownCapability PowderCoatFinish FullFrameConstruction

Dimensions Superstructure Worktop Hoodopening CFM 792 475@18 SP .25 .12

W 48 48 38

H 56 11/4 30

D 323/4 30

EXHAUST PARAMETERS

Blower Model # BL-111-48 (Sold separately)

Shipping weight approximately: 200 pounds

LEM- 1 1 1 - 60

AIRFOIL FUME HOOD

Dimensions Superstructure Worktop Hoodopening CFM SP 1042 .34 625@18 .17

W 60 60 50

H 56 11/4 30

D 323/4 30

OPTIONAL ACCESSORIESItem Airflow Alarm Light Switch Blower Switch 120 v GFI LEM Pt# ALARM LTSW BLSW GFI Page # 39 37 37 37 33 Call 36 36 36 36 36 37

EXHAUST PARAMETERS



LEM- 1 1 1 - 72

AIRFOIL FUME HOOD

Epoxy Work Surface with Cup sink ET Blowers Gas Service Air Service Vac Service Cold Water Service Pre-Plumb Service Pre-Wire Service Sash Stop Chain & SprocketSash Ceiling Enclosures BL FXTGAS FXTAIR FXTVAC FXTCWGN PREPLUMB PREWIRE


W 72 72 62

H 56 11/4 30

D 323/4 30

EXHAUST PARAMETERS



SASHSTOP Call CHNSPRKT Call CE 35

LEM- 1 1 1 - 96

AIRFOIL FUME HOOD


W 96 96 86

H 56 11/4 30

D 323/4 30

APPLICATIONS: K-12 University Private Industrytelephone 616.846.8846

EXHAUST PARAMETERS



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The E2-Series: Double Faced E1-SeriesIdeal for classroom and other demonstration settingsThe E2-Series features the same aerodynamic design as found in the E1-Series, but with entrance from two sides. This provides an educational viewing hood that is commonly used in classroom/classroom or classroom/ prep-room situations, or whenever demonstration of experiments is desired. The E2 features standard posts to allow for electrical and remote control plumbing services on both sides. The superstructure is designed to remove all fumes, both those heavier and lighter than air. The interior of the hood is lined with a UL certified poly resin board. The exterior is fabricated of cold rolled steel and finished with acid wash and powder coat. The solid frame galvanized steel construction provides both stability and knock-down ability to improve flexibility. Posts are 5 (127 mm) wide. Easy-to-remove interior access panels allow for easier maintenance and operation. T-8 fluorescent lights and bulbs are included standard. A round 12 standard duct collar is included to easily match up to most existing ductwork without costly additional transition pieces. The airfoil is fabricated of high-grade 304 stainless steel to eliminate the rusting and corrosion that can occur with painted surface airfoils. The standard vertical sliding sash features a full-length finger lift. The sash panels are 7/32 safety glass. The sash counterbalance is a single weight at the rear of the hood, attached with a 7 x 7 aircraft-type nylon coated cable. The .125 diameter cable rides on quiet and corrosion-resistant nylon and stainless steel ball bearing pulleys. LEM E2 hoods include standard equipment and offer the option of being shipped pre-wired and pre-plumbed (see Optional Accessories next page). Standard sizes are 36-96, with custom sizes available upon request.


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LEM-E2 STANDARD FEATURES FramelessSashLEM- 21 1 - 48 DOUBLE FACED FUME HOOD

T-8FluorescentLight(bulbsincluded) StainlessSteelAirfoil PolyResinLiner NoExposedFasteners KnockDownCapability PowderCoatFinish FullFrameConstruction


W 48 48 38

H 56 11/4 30

D 351/2 30

EXHAUST PARAMETERS



LEM- 21 1 - 60 DOUBLE FACED FUME HOOD


W 60 60 50

H 56 11/4 30

D 351/2 30

OPTIONAL ACCESSORIESItem Airflow Alarm Light Switch Blower Switch 120 v GFI LEM Pt# ALARM LTSW BLSW GFI Page # 39 37 37 37 33 Call 36 36 36 36 36 37 35

EXHAUST PARAMETERS



Epoxy Work Surface with Cup sink ET Blowers BL FXTGAS FXTAIR FXTVAC FXTCWGN PREPLUMB PREWIRE CE Gas Service Air Service Vac Service Cold Water Service Pre-Plumb Service Pre-Wire Service Sash Stop Ceiling Enclosures Sash Interlock



W 72 72 62

H 56 11/4 30

D 351/2 30

EXHAUST PARAMETERS


SASHSTOP CALL SASHINTL CALL




W 96 96 86

H 56 11/4 30

D 351/2 30

NOTE: CFM data with one sash open and one closed

APPLICATIONS: K-12

EXHAUST PARAMETERS



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The E3-Series: Slim LineA thin wall design with expanded workspace and wider openingsThe E3-Series is a thin wall hood with slimmer front posts to expand workspace. The superstructure is designed to remove all fumes, both those heavier and lighter than air. Baffle positions are fixed for both safety and consistent and complete containment of fumes at all sash positions. The interior of the hood is lined with a UL certified poly resin board. The exterior is fabricated of cold rolled steel and finished with acid wash and powder coat epoxy paint. The solid frame galvanized steel construction provides both stability and convenient knock down ability to improve flexibility. Posts are 2 12 (64 mm) wide. T-8 fluorescent lights and bulbs are included standard. A round 12 standard duct collar is included to easily match up to most existing ductwork without costly additional transition pieces. The standard vertical sliding sash features a full-length finger lift. The sash panels are 7/32 safety glass. The sash counterbalance is a single weight at the rear of the hood, attached with a 7 x 7 aircraft-type nylon coated cable. The .125 diameter cable rides on quiet and corrosion resistant nylon and stainless steel ball bearing pulleys. Because the slimmer posts remove the option for wiring and plumbing in the posts, plumbing services must be deck mounted on cabinet; and electrical services must be mounted on the face of the cabinet. (See cabinet options on page 34.) LEM E3 hoods include standard equipment. Standard sizes are 36-96 with custom sizes available upon request.


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LEM-E3 STANDARD FEATURES T-8FluorescentLight(bulbsincluded)LEM- 31 1 - 48 THIN WALL FUME HOOD

PolyResinLiner NoExposedFasteners KnockDownCapability PowderCoatFinish FullFrameConstruction


W 48 48 43

H 56 11/4 30

D 323/4 30

EXHAUST PARAMETERS



LEM- 31 1 - 60

THIN WALL FUME HOOD


W 60 60 55

H 56 11/4 30

D 323/4 30

OPTIONAL ACCESSORIESItem Light Switch Blower Switch 120 v GFI LEM Pt# LTSW BLSW GFI Page # 37 37 37 33 Call 36 36 36 36

EXHAUST PARAMETERS



Epoxy Work Surface with Cup sink ET Blowers BL FXTGAS FXTAIR FXTVAC FXTCWGN Gas Service Air Service Vac Service Cold Water Service Chain & SprocketSash Ceiling Enclosures

LEM- 31 1 - 72

THIN WALL FUME HOOD


W 72 72 67

H 56 11/4 30

D 323/4 30

EXHAUST PARAMETERS

CHNSPRKT Call CE 35



Note: Because electrical and plumbing accessories must be mounted on the base cabinet, pre-wire and pre-plumb services are not available on thin wall hoods..

LEM- 31 1 - 96

THIN WALL FUME HOOD


W 96 96 91

H 56 11/4 30

D 323/4 30

APPLICATIONS: K-Middle School

EXHAUST PARAMETERS



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The E4-Series: Floor Mounted HoodAn aerodynamic floor mounted design for those tall jobsThe E4-Series, with a double-hung sash configuration and 72 high opening, is designed to accommodate a large apparatus application, up to 93 inches in height. This hood features a 45-degree fascia on three sides to allow a smoother flow of air across the fascia. This results in minimized air turbulence and increased safety and performance of the hood. The superstructure is designed to remove all fumes, both those heavier and lighter than air. Baffle positions are fixed for both safety and consistent and complete containment of fumes at all sash positions. The interior of the hood is lined with a UL certified poly resin board. The exterior is fabricated of cold rolled steel and finished with acid wash and powder coat epoxy paint. The solid frame galvanized steel construction provides both stability and convenient knock down ability to improve flexibility. Posts are 5 (127 mm) wide. Easy-to-remove interior access panels allow for easier maintenance and operation. T-8 fluorescent lights and bulbs are included standard. A round 12 standard duct collar is included to easily match up to most existing ductwork without costly additional transition pieces. The standard vertical sliding sash features a full-length finger lift. The sash panels are 7/32 safety glass. Each sash is counterbalanced by a single weight at the rear of the hood, attached with a 7 x 7 plastic coated aircraft-type nylon coated cable. The .125 diameter cable rides on quiet and corrosion resistant nylon and stainless steel ball bearing pulleys. LEM E4 hoods include standard equipment as listed and as an option may be shipped pre-wired and pre-plumbed. (See Optional Accessories next page). Available in 3696 standard widths, with custom sizes available upon request.


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LEM-E4 STANDARD FEATURES T-8FluorescentLight(bulbsincluded)LEM- 41 1 - 48 FLOOR MOUNTED FUME HOOD

PolyResinLiner NoExposedFasteners KnockDownCapability PowderCoatFinish FullFrameConstruction


W 48 48 38

H 93 11/4 67

D 323/4 30

EXHAUST PARAMETERS



LEM- 41 1 - 60 FLOOR MOUNTED FUME HOOD


W 60 60 50

H 93 11/4 67

D 323/4 30

OPTIONAL ACCESSORIESItem Airflow Alarm Light Switch Blower Switch 120 v GFI Blowers Gas Service LEM Pt# ALARM LTSW BLSW GFI BL FXTGAS FXTAIR FXTVAC FXTCWGN PREPLUMB PREWIRE Page # 39 37 37 37 Call 36 36 36 36 36 37

EXHAUST PARAMETERS




Air Service Vac Service Cold Water Service Pre-Plumb Service Pre-Wire Service Sash Stop Chain & SprocketSash Ceiling Enclosures


W 72 72 62

H 93 11/4 67

D 323/4 30

EXHAUST PARAMETERS






W 96 96 86

H 93 11/4 67

D 323/4 30

NOTE: CFM data with one sash open


EXHAUST PARAMETERS



17

The E5-Series: ADA Barrier-Free DesignAerodynamic and adaptable Meets ADA dimensional guidelinesThe E5-Series is an airfoil-type hood designed to meet ADA dimensional guidelines. The superstructure is designed to remove all fumes, both those heavier and lighter than air. Baffle positions are fixed for both safety and consistent and complete containment of fumes at all sash positions. The interior of the hood is lined with a UL certified poly resin board. The exterior is fabricated of cold rolled steel and finished with acid wash and powder coat epoxy paint. The solid frame galvanized steel construction provides both stability and convenient knock down ability to improve flexibility. Posts are 5 (127 mm) wide. Easy-to-remove interior access panels allow for easier maintenance and operation. T-8 fluorescent lights and bulbs are included standard. A round 12 standard duct collar is included to easily match up to most existing ductwork without costly additional transition pieces. The airfoil is fabricated of high grade 304 stainless steel to eliminate the rusting and corrosion that can occur with painted surface airfoils. The stainless steel containment trough is an integral part of the airfoil and provides secondary containment in event of a spill. The standard horizontal and vertical sliding sash is fabricated of 16-gauge stainless steel to provide additional stability and safety in and around the hood. The sash has two horizontal sliding 7/32 safety glass panels on 48 and 60 wide models and four glass panels on 72 and 96 wide models, and a fixed 6 (152 mm) viewing window above, as well as a full-length finger lift. The glass panels are covered with a plastic guard on vertical edges. The sash limiting hardware (sash stop) allows the sash to be secured in the half open position. The sash counterbalance is a single weight at the rear of the hood, attached with a 7 x 7 aircrafttype nylon coated cable. The .125 diameter cable rides on quiet and corrosion-resistant nylon and stainless steel ball bearing pulleys. LEM E5 hoods include standard equipment and, as an option, may be shipped pre-wired and pre-plumbed. (See Optional Accessories next page.) Standard sizes are 36-72 with custom sizes available upon request.


See page 34 for cabinet options

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LEM-E5 STANDARD FEATURES StainlessSteelSash T-8FluorescentLight(bulbsincluded) StainlessSteelAirfoil&Integral Trough PolyResinLiner NoExposedFasteners KnockDownCapability PowderCoatFinish FullFrameConstruction AirflowAlarm SashStop(18) ClearViewPanel StainlessSteelBaffleScreen DeeperADAhoodalsoavailableto accommodate30worksurface

LEM- 521 - 48

BARRIER FREE FUME HOOD

Dimensions W H Overall 48 851/4 Superstructure 48 56 Worktop 48 11/4 SteelBase 48 28 Optional Flammable Storage Cabinet Overall 35 27 HoodOpening 38 30 CFM 580 475@18 SP .25 .12

D 323/4 323/4 22 22 22

EXHAUST PARAMETERS



LEM- 521 - 60


Dimensions W H Overall 60 851/4 Superstructure 60 56 Worktop 60 11/4 Optional Steel BaseCabinets(2) 12 28 Optional Flammable Storage Cabinet Overall 35 27 HoodOpening 50 30 CFM 770 625@18 SP .34 .17

D 323/4 323/4 22 21 22

OPTIONAL ACCESSORIESItem Light Switch Blower Switch 120 v GFI Epoxy Work Surface with Cup sink Blowers Gas Service Air Service Vac Service Cold Water Service Pre-Plumb Service Pre-Wire Service Base Frame Base Cabinet Roll Out Flammable Base SashPocket Chain & SprocketSash Ceiling Enclosures LEM Pt# LTSW BLSW GFI Page # 37 37 37

EXHAUST PARAMETERS



LEM- 521 - 72


ET 33 BL Call FXTGAS 36 FXTAIR 36 FXTVAC 36 FXTCWGN 36 PREPLUMB 36 PREWIRE 37 BF 34 BC 34 ROBF SASHPKT 34 Call

Dimensions W H Overall 72 851/4 Superstructure 72 56 Worktop 72 11/4 Optional Steel BaseCabinets(2) 18 28 Optional Flammable Storage Cabinet Overall 35 27 HoodOpening 62 30 CFM 950 775@18 SP .34 .18

D 323/4 323/4 22 21 22

CHNSPRKT Call CE 35

APPLICATIONS: K-12 University Private Industrytelephone 616.846.8846

EXHAUST PARAMETERS



19

The E6-Series: Radio Isotope HoodOne-piece stainless steel liner-and-countertop for robust performanceThe E6-Series Radio Isotope Hood has the same aerodynamic design as the E1-Series standard airfoil hood with the added feature of a one-piece 304 stainless steel liner and countertop construction. A 45-degree angle around the fascia allows a smoother flow of air across the fascia. This results in minimized air turbulence and increased safety and performance of the hood. The superstructure is designed to remove all fumes, both those heavier and lighter than air. Baffle positions are fixed for both safety and consistent and complete containment of fumes at all sash positions. The exterior is fabricated of cold rolled steel and finished with acid wash and powder coat epoxy paint. The solid frame galvanized steel construction provides stability. Posts are 5 (127 mm) wide. The interior of the hood and integral countertop are fabricated of 304 stainless steel, buffed and polished to a smooth # 4 finish. Easy-to-remove interior access panels allow for easier maintenance and operation. T-8 fluorescent lights and bulbs are included standard. A round 12 standard duct collar is included to easily match up to most existing ductwork without costly additional transition pieces. The airfoil is fabricated of high-grade 304 stainless steel to eliminate the rusting and corrosion that can occur with painted surface airfoils. The standard vertical sliding sash is fabricated of 16-gauge stainless steel to provide additional stability and safety in and around the hood and features a full-length finger lift. The sash panels are 7/32 safety glass and are counterbalanced by a single weight at the rear of the hood, attached with a 7 x 7 aircraft-type nylon-coated cable. The .125 diameter cable rides on quiet and corrosion-resistant nylon and stainless steel ball bearing pulleys. LEM E6 hoods include standard equipment as listed and are available in 36-96 standard widths, with custom sizes available upon request. As an option, they may be shipped pre-wired and pre-plumbed. (See Optional Accessories next page).


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LEM-E6 STANDARD FEATURES IntegralStainlessSteelWorkSurface and Interior Liner StainlessSteelSash T-8FluorescentLight(bulbsincluded) StainlessSteelAirfoil NoExposedFasteners PowderCoatFinish FullFrameConstruction

LEM- 613- 48

RADIO ISOTOPE HOOD

Dimensions Superstructure Worktop Hoodopening CFM 570 475@18 SP .25 .12

W 48 48 38

H 56 11/4 30

D 323/4 30

EXHAUST PARAMETERS



LEM- 613- 60

RADIO ISOTOPE HOOD


W 60 60 50

H 56 11/4 30

D 323/4 30

OPTIONAL ACCESSORIESItem Airflow Alarm Light Switch Blower Switch 120 v GFI Blowers Gas Service Air Service Vac Service Cold Water Service Pre-Plumb Service Pre-Wire Service Sash Stop Chain & SprocketSash Ceiling Enclosures LEM Pt# ALARM LTSW BLSW GFI BL FXTGAS FXTAIR FXTVAC FXTCWGN PREPLUMB PREWIRE Page # 39 37 37 37 Call 36 36 36 36 36 37

EXHAUST PARAMETERS



LEM- 613- 72

RADIO ISOTOPE HOOD


W 72 72 62

H 56 11/4 30

D 323/4 30

EXHAUST PARAMETERS




LEM- 613- 96

RADIO ISOTOPE HOOD


W 96 96 86

H 56 11/4 30

D 323/4 30 APPLICATIONS: University Private Industry

EXHAUST PARAMETERS



21

The E7-Series: Perchloric Acid HoodBuilt-in trough captures runoff in washdown proceduresThe E7-Series Perchloric Acid Hood has the same aerodynamic design as the E1-Series and features a built-in trough to capture runoff in washdown procedures where perchloric acid is in use. Also included is a manual washdown feature for the areas behind the baffles as well as the duct collar areas. A 45-degree angle around the fascia allows a smoother flow of air across the fascia. This results in minimized air turbulence and increased safety and performance of the hood. The superstructure is designed to remove all fumes, both those heavier and lighter than air. Baffle positions are fixed for both safety and consistent and complete containment of fumes at all sash positions. The exterior is constructed of cold rolled steel and finished with acid wash and powder coat epoxy paint. The solid frame galvanized steel construction provides stability. Posts are 5 (127 mm) wide. The interior of the hood is fabricated of 316 stainless steel and is integrally welded to a 316 stainless steel work surface, then buffed and polished to a #4 finish. The standard vertical sliding sash features a full-length finger lift. The sash panels are 7/32 safety glass and are counterbalanced by a single weight at the rear of the hood, attached with a 7 x 7 aircraft-type nylon-coated cable. The .125 diameter cable rides on quiet and corrosion-resistant nylon and stainless steel ball bearing pulleys. LEM E7 hoods include standard equipment as listed and are available in 36-96 standard widths, with custom sizes available upon request. As an option, they may be shipped pre-wired and pre-plumbed. (See Optional Accessories on page 23.)


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LEM-E7 STANDARD FEATURES StainlessSteelSashLEM- 71 6- 48 PERCHLORIC ACID HOOD

T-8FluorescentLight(bulbsincluded) NoExposedFasteners 316StainlessSteelInteriorlinedwith Integral Work Surface Built-inTrough ManualWashdownFeature PowderCoatFinish FullFrameConstruction


W 48 48 38

H 56 11/4 30

D 323/4 30

EXHAUST PARAMETERS



LEM- 71 6- 60

PERCHLORIC ACID HOOD


W 60 60 50

H 56 11/4 30

D 323/4 30


EXHAUST PARAMETERS



LEM- 71 6- 72


Epoxy Work Surface with Cup Sink ET Blowers Gas Service Air Service Vac Service Cold Water Service Pre-Plumb Service Pre-Wire Service Chain & SprocketSash Ceiling Enclosures BL FXTGAS FXTAIR FXTVAC FXTCWGN PREPLUMB PREWIRE


W 72 72 62

H 56 11/4 30

D 323/4 30

EXHAUST PARAMETERS



CHNSPRKT Call CE 35

LEM- 716- 96



W 96 96 86

H 56 11/4 30

D 323/4 30


EXHAUST PARAMETERS



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The E8-Series: Flat FrontFlat-faced construction to accommodate fixtures on frontThe E8-Series is of similar construction to the E3-Series (Thin Wall/Slim Line) with the added benefit of electrical and plumbing fixtures on the face of the hood. The superstructure is designed to remove all fumes, both those heavier and lighter than air. Baffle positions are fixed for both safety and consistent and complete containment of fumes at all sash positions. The interior of the hood is lined with a UL-certified poly resin board. The exterior is fabricated of cold rolled steel and finished with acid wash and powder coat epoxy paint. The solid frame, galvanized steel construction provides both stability and convenient knockdown ability to improve flexibility. Posts are 5 (127 mm) wide. Easy to remove access panels allow for easier maintenance and operation. T-8 fluorescent lights with bulbs are included. A round 12 standard duct collar is supplied to easily match up to most existing ductwork without costly additional transition pieces. The standard vertical sliding sash features a full-length finger lift. The sash panels are 7/32 safety glass and are counterbalanced by a single weight at the rear of the hood, attached with a 7 x 7 aircraft-type nylon-coated cable. The .125 diameter cable rides on quiet and corrosion-resistant nylon and stainless steel ball bearing pulleys. LEM E8 hoods include standard equipment as listed and are available in 36-96 standard widths, with custom sizes available upon request. As an option, they may be shipped pre-wired and pre-plumbed. (See Optional Accessories next page.)


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LEM-E8 STANDARD FEATURES StainlessSteelSashLEM- 811- 48 FLAT FRONT HOOD

T-8FluorescentLight(bulbsincluded) PolyResinLiner NoExposedFasteners KnockDownCapability PowderCoatFinish FullFrameConstruction


W 48 48 38

H 56 11/4 30

D 323/4 30

EXHAUST PARAMETERS



LEM- 811- 60

FLAT FRONT HOOD


W 60 60 50

H 56 11/4 30

D 323/4 30


EXHAUST PARAMETERS



Epoxy Work Surface with Cup sink ET Blowers BL FXTGAS FXTAIR FXTVAC FXTCWGN PREPLUMB PREWIRE Gas Service Air Service Vac Service Cold Water Service Pre-Plumb Service Pre-Wire Service Sash Stop Chain & SprocketSash Ceiling Enclosures

LEM- 811- 72

FLAT FRONT HOOD


W 72 72 62

H 56 11/4 30

D 323/4 30

EXHAUST PARAMETERS




LEM- 811- 96

FLAT FRONT HOOD


W 96 96 86

H 56 11/4 30

D 323/4 30

APPLICATIONS:

EXHAUST PARAMETERS


K-12


25

The E9-Series: Demonstration HoodUp to three viewing windows available for optimum educational impactRH Post LH Post LH Slim Line Post

The E9-Series is an educational viewing hood with one slimmed-down front post and one standard post to allow for more workspace and electrical services.RH Slim Line Post

Plumbing service must be deck mounted. This hood features a two-sash configuration and is primarily used in high schools or in any environment where demonstration of experiments is desired. The third (end) viewing window may be eliminated for against-the-wall installations if required. The superstructure is designed to remove all fumes, both those heavier and lighter than air.


The interior of the hood is lined with a UL-certified poly resin board. The exterior is fabricated of cold rolled steel and finished with acid wash and powder coat epoxy paint. The solid frame, galvanized steel construction provides both stability and convenient knock-down ability to improve flexibility. Posts are 2 (51mm) and 5 (127 mm) wide. T-8 fluorescent lights with bulbs are included. A round 12 standard duct collar is supplied to easily match up to most existing ductwork without costly additional transition pieces. The standard vertical sliding sash is fabricated of 16-gauge stainless steel

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LEM-E9 STANDARD FEATURES StainlessSteelSash T-8FluorescentLight(bulbsincluded)

to provide additional stability and safety in and around the hood and features a full-length finger lift. The sash panels are 7/32 safety glass. Each sash is counterbalanced by a single weight at the rear of the hood, attached with a 7 x 7 aircraft-type nylon-coated cable. The .125 diameter cable rides on quiet and corrosion-resistant nylon and stainless steel ball bearing pulleys. LEM E9 hoods include standard equipment as listed and are available in 60 standard width, pictured here, with custom sizes available upon request. As an option, the LEM E9 may be shipped pre-wired and pre-plumbed. (See Optional Accessories at right.)

PolyResinLiner NoExposedFasteners KnockDownCapability PowderCoatFinish FullFrameConstruction ClearViewEndPanel(17x27) SashInterlock

OPTIONAL ACCESSORIESItem Light Switch Blower Switch 120 v GFI LEM Pt# LTSW BLSW GFI Page # 37 37 37 33 Call 36 36 36 36 37 35

Epoxy Work Surface with Cup sink ET Blowers Gas Service Air Service Vac Service Cold Water Service Pre-Wire Service Ceiling Enclosures BL FXTGAS FXTAIR FXTVAC FXTCWGN PREWIRE CE

LEM- 911- 60

DEMONSTRATION FUME HOOD

NOTE: CFM data with one sash open and one closed.


W 60 60 53

H D 48 30 11/4 30 28(eachside)

APPLICATIONS:

EXHAUST PARAMETERS


K-12


27

The E-Series Air Chamber Systeman option for all hood stylesOptional feature reduces energy costs by up to 70 percentThe LEM Air Chamber system reduces energy costs for heating and cooling to any fume hood by as much as 70 percent. This is achieved by capturing air from outside the laboratory and supplying it to the hood through a supply duct in the Air Chamber. An additional, separate blower and duct are required for the air supply. Increased Flexibility The Air Chamber can be used on any E-Series hood and coordinates with all E-Series standard features in design, manufacturing, construction, finishing, and fixtures. To order the Air Chamber option, include the letters AC after the width dimension. See Ordering Guide on page 44.

Supply Blower InformationModel LEM-111-36AC LEM-111-48AC LEM-111-60AC LEM-111-72AC LEM-111-96AC 70% of Hood CFM 380 555 730 905 1255 SP @ Hood .15 Inches .18 Inches .22 Inches .28 Inches .42 Inches

Supply Blower InformationModel LEM-411-48AC LEM-411-60AC LEM-411-72AC LEM-411-96AC Model LEM-311-36AC LEM-311-48AC LEM-311-60AC LEM-311-72AC LEM-311-96AC 70% of Hood CFM 380 730 905 1255 70% of Hood CFM 452 627 802 977 1327 SP @ Hood .18 Inches .22 Inches .28 Inches .42 Inches SP @ Hood .15 Inches .18 Inches .22 Inches .28 Inches .42 Inches

Supply Blower Information

Blower information is provided for general purposes only based on a full open sash and static pressure for the hood only. Corners and additional duct runs will increase the static pressure and blower requirements. Please consult with your HVAC professional for your specific requirements.

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The E-Series Paint (Spray) Booth

The LEM Paint Spray Booth is fabricated of 18-gauge steel with a corrosion resistant, powder coat baked epoxy finish. The upper booth enclosure includes a standard vapor-proof light as well as two filters set in an easy-to-change flange bracket system. The cagedesign light mounts in the center-forward of the booth and is shipped attached but unwired. As with all LEM products, the light fixture is shipped with bulbs, standard. The optional blower motor operates at an RPM designed to provide 100 LFM and approximately 34 of static pressure. The blower is shipped and sold separately. (For more information on optional blower, please call.) Optional explosion-proof light and switch options are available. (See Electrical Accessories, page 37.) Dimensions: Paint spray booths are available in widths of 24 60 All are 48 H x 24 D.Paint (Spray) Booth

Blowers sold separately

LEM-24-PB LEM-30-PB LEM-36-PB LEM-48-PB LEM-60-PB BL-PB-24 BL-PB-30 BL-PB-36 BL-PB-48 BL-PB-60 LTSW BLSW XBL-PB-24 XBL-PB-30 XBL-PB-36 XBL-PB-48 XBL-PB-60 XLTSW XBLSW

24Paint(Spray)Booth 30Paint(Spray)Booth 36Paint(Spray)Booth 48Paint(Spray)Booth 60Paint(Spray)Booth Blower24PB Blower30PB Blower36PB Blower48PB Blower60PB Light Switch Blower Switch ExplosionProofBlower24PB ExplosionProofBlower30PB ExplosionProofBlower36PB ExplosionProofBlower48PB ExplosionProofBlower60PB Explosion Proof Light Switch Explosion Proof Blower Switchtelephone 616.846.8846

Paint (Spray) Booth Blowersold separately

Optional Electrical Switchessee page 37

Explosion Proof Items

Sold separately Part No. TT12CR

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E-Series Portable Demonstration HoodFor light duty in classroom settingsLEM-PH-36 Standard Features T-8FluorescentLightw/Bulb LightSwitch BlowerandBlowerSwitch 120vGFIDuplexOutlet Pre-wiredwith10PigTail PolypropyleneCupsink DrainingHose Water&GasPass-Through Removableworkpan

The LEM-PH-36 is a 36 wide, 27 high and 20 deep portable demonstration hood designed for in-classroom use with experiments involving low volumes of mildly irritating vapors or light smoke. Safety glass panels provide maximum visibility for both teacher and students. The exterior is fabricated of cold rolled steel and finished with acid wash and powder coat epoxy paint. Polypropylene cup sink, draining hose and removable work pan come standard. Stainless steel construction is available as an option. The hood comes standard with a T-8 fluorescent light complete with bulbs and is prewired with a 10-foot pig tail. An optional stainless steel cart with swivel casters is also available. Order part LEM-PH-CART.

LEM-PH Options DishedEpoxyWorkSurface PaintedSteelCartwithCasters FlatBlackphenolicworksurface

LEM-PH-36

LEM-PH-CART Portable Hood Cart

APPLICATIONS:

K-12

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Canopy Fume HoodsLEMs painted or stainless steel canopy fume hoods are designed to collect and exhaust heat, steam and odors when mounted above hot plates, water baths or portable equipment. They are available in three different models as pictured here and in six standard widths: 24, 30, 36, 48, 60, and 72. Custom sizes are also available. Canopy hoods are fabricated of 16-gauge 304 stainless steel with a #4 smooth grain finish, or are also available in 18gauge cold rolled steel, finished with acid wash and powder coat epoxy paint. (See inside back cover for available standard colors; custom colors also available.) They are equipped with baffles to maximize slot velocities and control fumes. Two or four 48 (121.9 cm) steel rods with couplers are attached for additional ceiling height. To order canopy hoods: CHfor flat back and flat sides CH-ISL for center style CH-FBS for flat back and sloped sides For stainless steel option, add -SS For example: CH-FBS-48 CH-ISL-60-SS

is a painted steel, 48 wide canopy hood with flat back and sloped sides. is a stainless steel, 60 wide center style canopy hood.

telephone 616.846.8846

31

Stainless Steel CountertopsPrimarily used for all general purpose fume hoods and base cabinets, standard stainless steel countertops are fabricated of 16-gauge 304* stainless steel with a #4 smooth grain finish and are 1 14 (3.2 cm) thick and dished 3/8 (0.97 cm). A 4 integral back splash comes standard and, when sinks or end splashes are required, they are continuously welded to the top and professionally buffed to a #4 finish. Standard depth is 30 and they can be made up to any length required to include a field joint or continual counter depending on the specific job requirements. The tops also have a rubberized sound deadening material applied to soften the sound of the top and make it more acoustically appealing. Square 3 x 6 (7.65 x 15.3cm) welded cupsinks are standard; locations must be specified when ordering. *Use of perchlorics requires use of 316 stainless steel for lab safety.

SECTION THRU

MARINE EDGE COUNTERTOPS ALSO AVAILABLE

SECTION THRU

SECTION THRU

32

SPECIALCOUNTERTOPw/DOUBLESINKwww.fumehood.net

SPECIALCOUNTERTOPw/EXTRADEEPSINK

Epoxy Resin & Stainless Steel SurfacesWork Surfaces Another key component of effective and efficient fume hood utilization is the type of work surface to use. Inappropriate work surfaces can interfere with lab processes and be a potential danger to lab personnel. Laboratory Equipment Manufacturers provides durable, high-performance epoxy resin and stainless steel surfaces that feature top quality materials and workmanship.Epoxy Resin Chemical Resistance Heat Resistance Stain Resistance Moisture Resistance Impact Resistance Abrasion Resistance Cleanability Sanitation Spill Containment Maintenance Cost Smoke Toxicity Disposal Impact S S G E E G G P G Low Low Low Stainless Steel G G G S S E E E G Low Low Low

E1 & E8 Series Epoxy Work Surfaces

S=Superior E=Excellent G=Good F=Fair P=Poor

The above chart of chemical resistance test results represents a sampling of data. Complete test results for additional solvents and chemicals can be obtained by contacting us.

E3 Series Epoxy Work Surfaces

Epoxy Resin Primarily used for all general purpose fume hoods and base cabinets, LEM Fume Hood epoxy resin tops are 1- 14 (3.2cm) thick with a black, low sheen finish and feature a deep dished 3/8 (0.97 cm) work area. Oval 3 x 6 (7.65 x 15.3cm) cup sinks are standard; locations must be specified when ordering. Stainless Steel Stainless steel work surfaces are fabricated of 304 stainless steel*, are 1- 1/4 (3.2 cm) thick and dished 3/8 with a #4 smooth satin finish. Square 3 x 6 (7.65 x 15.3 cm) welded cup sinks are standard; locations must be specified when ordering.*In perchloric acid applications, 316 stainless steel is used for lab safety.

E5 Series Epoxy Work Surfacestelephone 616.846.8846

33

Optional Base CabinetsAlthough LEM is your fume hood expert, we do offer a limited selection of metal base cabinets manufactured by our approved cabinet suppliers to help you complete your fume hood project. When a large quantity of standard laboratory cabinets is required, however, we suggest you work directly with one of the LEM cabinet partners. Call us for an approved list of suppliers. LEM fume hood base cabinets conform to the method of testing and performance requirements set forth in the Scientific Apparatus Makers Association (SAMA). Sheet steel shall be mild, cold rolled, prime grade, stretcher leveled, re-squared, free from scale, rust, etching, deep scratches, ragged edges or other imperfections. Stainless steel shall be type 302 or 304 as required with standard #4 brushed finish.

ADA Base Frame29 HBF-2948

ADA Hood Base Cabinets are29high.Specify(L)for Left Hand Door or (R) for Right Hand Door. HBC-2912 HBC-2918 HBC-2948

Hood Base Cabinet35 HBC-3530 HBC-3536 HBC-3548

Acid Storage Cabinet 18deep ACSTRG18 ACSTRG24 ACSTRG30 ACSTRG36 ACSTRG48

ROBF Roll Out Flammable Storage Cabinet Flame resistant Standard yellow color 22-3/8Hx35Wx22D Overallheight27 includingcasters) ( Shipping weight 160 lbs. Includes an adjustable galvanized steel shelfandremovable2spillpan. Caster information: Front casters swivel and include a brake. Rear casters swivel without brake.

Flammable Storage Cabinet 18deep FLSTRG-3518 FLSTRG-3524 FLSTRG-3530 FLSTRG-3548

Flammable Cabinets are 18 Deep

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Ceiling Enclosures & Finished Backs; SnorkelsCeiling Enclosures & Finished Backs Laboratory Equipment Manufacturers offers ceiling enclosures and finished backs to provide a professional, finished design in any setting. Ceiling enclosures and finished backs are fabricated of galvanized steel and finished to match the fume hood superstructure. The ceiling enclosures are available in two types: for standard fume hoods and also for those fume hoods utilizing the optional Air Chamber. Both enclosures conceal and protect the hood ductwork, electrical conduit and other supply lines. Finished backs are used to enclose the back of the fume hood when it is exposed. Snorkels

Aluminum and Polypropylene Exhaust Arms for Flexible Fume EliminationFinished Backs: Order FINBACK-WwhereW equals hood width.

Ceiling Enclosures: Order CEW-H where W is hood width and H is height of enclosure required. Example: CE-47-18 is a setofenclosuresfora47wide hoodwhichare18high.

An exhaust arm extraction system can be used for any workstation where harmful substances are present in dangerous concentrations. Operating and maintaining the arm is easy. It can be adjusted to a new position with just one hand and dismantled for cleaning without the need for tools. LEM snorkel exhaust arms are made of aluminum with an anodized surface. Any plastic components, such as joints, are made of shatterproof resistant polypropylene. They are designed for easy mounting on table, wall or ceiling with available table or wall brackets or columns for ceiling mounting. Specify SNORK75 for exhaust and SNORKHPETG for 15 clear round hood.


35

Plumbing AccessoriesDescription Part # Gas Air Vacuum Nitrogen Cold water FXTGAS FXTAIR FXTVAC FXTNIT FXTCWAll Laboratory Equipment Manufacturers fixtures come standard with black plastic handles, baked color coded epoxy upper assemblies and control rods cut to length. Chrome and other styles are available upon request. Pre-plumbed services are 3/8 black pipe for gases and 1/2 rigid copper with soldered joints for water and other lab services.

Remote Control Fixtures

Gooseneck Faucet Part # FXTGN Specify Hot or Cold

Hot & Cold Water Mixing Part # FXTCWM

90 Water Faucet Part # FXTDS Deck Mount Gas Double Outlet Part # FXTDMG3

Deck Mount Gas Double Outlet Part # FXTDMG2 Deck Mount Gas Single Outlet Part# FXTDMG1

Deck Mount Gas Double Outlet Part # FXTDMG4

Deck Mount Water Part # FXTDMW

Gooseneck Faucet with Vacuum Breaker Part # FXTGNWVB Specify Hot or Cold

Deck Mount Gas Double Outlet Part # FXTDMG180

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Electrical AccessoriesPre-Wire service is completed in accordance with NEC and UL-1805 standards. Note: If the fume hood is not pre-wired wiring in the field must be accomplished using UL listed electrical fixtures while observing NEC standards and local electrical codes.

Single Pole 15 Amp Light Switch Standard Black Color & Cover Plate Part# LTSW

Blower Switch with SS Cover Plate Manual motor starter switch with pilot light Part# BLSW

Explosion Proof Outlet Class 1, Group 1 Part# XPO

Explosion Proof Switch Class 1, Group 1 Part# XSW

208 Volt, 20 Amp Single Pole Receptacle 230, 277 or other available upon request Part# 208

120 volt 20 Amp Ground Fault Interrupter (GFI) Duplex Outlet Standard Black color with cover Part# GFI

Explosion Proof Light Class 1, Group 1 Available in incandescent or fluorescent Part# XPLtelephone 616.846.8846

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Electrical SpecificationsThese specifications are only applicable to factory prewired hoods and do not apply to owner/contractor furnished & installed equipment. All additional in field wiring should be done in accordance to the NFPA 70, i.e., The National Electric Code, and other local ordinances where applicable. Environmental Specifications Indoor use only; Altitude up to 2000 m, or above; Operating ambient temperature range of 5 o C to 40 o C; Maximum relative humidity 80% for temperatures up to 31 o C decreasing linearly to 50% relative humidity at 40 o C; Main supply voltage not to exceed +/- 10% of the nominal voltage; CAT II; (transient overvoltages according to INSTALLATION CATEGORIES I, II and III. For main supply, the minimum and normal category is II); POLLUTION DEGREE 2 in accordance with IEC 664; Recommended Input Supply voltage unless otherwise noted should be 125V, 20A, 60 Hz, AC. All electrical supply lines should be routed from the nearest electrical service panel with the appropriate rated circuit breaker. At no time should this hood be hard wired to an existing electrical outlet, or wired with a male plug end for a wall receptacle. Also, a disconnecting device should be located in close proximity to the equipment and within easy reach of the operator. Recommended supply wire size, minimum 12 gauge copper wire, max volt 600v, 90 o C dry THHN/THWN conductors. Light Switch Lighting Output Connection Duplex receptacle 125V; 20A; 60Hz; AC GFCI receptacle 125V; 20A; AC Temp range -31F to 158F; Trip at 5mA (+/- 1mA) 120/277V; 1HP @ 120V; 2HP @ 240V 24 fluorescent light: T-8 ballast; 118V; 60Hz; AC 85 watts (17 watt bulbs) 48 fluorescent light: T-8 ballast; 118V; 60Hz; AC 160 watts (32 watt bulbs) Vapor proof light: 120V; 100watts max; indoor/outdoor use suitable for damp locations. Explosion proof light: 120V; Maximum 300watt bulb. Recommended bulb 120V; 135watt Voltage fluctuations should not exceed +/- 10% of the nominal voltage.

CAUTION: Before doing any work on this product, be sure that all power to this hood has been turned off, and any circuit breakers supplying power to this hood, have been locked out to avoid electrocution. Final safety considerations for using this equipment must be coordinated with the safety officer(s) of your organization. This would include situations for intermittent operation as well as utilizing this fume hood with any other equipment.

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Air Monitor Alarm AFA1000/1 USA, 1000/2 USADisplay range Alarm range Field set-up Accuracy

Specifications: All specifications apply to both models0-1,000 fpm (0-5.0 m/s) 0-1,000 fpm (0-5.0 m/s) 2-point velocity calibration (with on-screen instructions) Sensor / Display resolution 1 fpm Face velocity accuracy +/- 5% Alarm delays User configurable 0 to 60secs Relay output 4 (1 on board 3 on optional plug in relay interface unit) Analog output 0-10V output, directly proportional to velocity (Optional) Relay input 3 Comm. Port RS232 Can be connected via Serial interface to LAN network ( Full software available ) Sash high indication Yes, with separate plug-in connection Emergency purge Only with the pushbutton on the 1000/2 Night setback Yes External alarm indication Yes Power Requirement Input120VAC, 60Hz Output15VDC, 500ma Units English and Metric (user selectable) Displayvisual Analog bar graph LEDs: red, alarm; yellow, caution; green, normal Digital display of velocity reading (can be turned off) Alarm indication Red LED & audible alarm (to a certain sound spec) Horn silence Yes ( temporary / permanent/automatic depending on type of alarm or external input ) Mounting Semi Flush Operating temperature 55-86F (13-30C) Storage temperature -40-150F (-40-65C) Instrument dimensions Instrument Case: 132mm H x 81mm W x 29mm D Agency listings CE For 1000/2 Auxiliary pushbuttons

DigitalReadout 3-ColorBand HornSilence JumboLEDLights FieldAdjustable DurableDesignProduct No. ALARMTEL

3 (typically used for fan start/stop, light on/off, scrubber pump on/off, emergency purge, etc. Buttons can be interlocked to each other.)

Optional Remote Relay Interface Unit Relay output 3 volt free change over contacts (120v 5A AC1) Relay input 3 Connection 14 Way IDC Connector (Standard 2M Length) Enclosure material Polystyrene Enclosure dimensions 130mm x 130mm x 75mm Agency listings VDE CEtelephone 616.846.8846

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Face Velocity, Exhaust Volume and Static PressureFace velocity, exhaust volume and static pressure are critical parameters in hood performance, functioning in unison with the rooms HVAC design

DETERMINING EXHAUST VOLUMEIn order to calculate exhaust volume, you must know your hood type and size as well as the number of air changes per hour for the lab. (Consult with your HVAC professional or mechanical engineer.) To determine the quantity of room air available for fume hood exhaust (in CFM), use the following equation: Exhaust volume (CFM) Room size (cubic feet)

DEFINITIONSFace Velocity: The adequate draw of air from the operator, through the hood, to the ductwork. Face velocity is measured in feet per minute (FPM) at the sash. To maintain consistent face velocity, a certain exhaust volume is required.

Exhaust Volume: The amount of cubic feet per minute (CFM) required to maintain the desired constant face velocity. Static Pressure: Air pressure, or resistance, in a fume hood or duct, expressed in inches of water. Fume hoods operate more efficiently and with less noise at lower static pressure levels. The static pressure rating of your hood is very important to correct sizing of the blower system, and should be provided to the HVAC contractor to ensure a properly sized exhaust system.The appropriate face velocity will vary depending on usage of the fume hood and the way in which the hood has been set up. There are several published guidelines that indicate general ranges for face velocity settings. The published face velocity guidelines may or may not apply to your application and/or the hood you select.

Published Face Velocity GuidelinesOrganization OSHA ACGIH ANSI/AIHA NFPA SEFA Reference 29 CFR & 1910 Industrial Ventilation Manual 23rd Edition Z9.5 NFPA 45, 6-4 SEFA LF-1996, 5.2 Face Velocity 60-100 FPM 60-100 FPM 80-120 FPM 80-120 FPM 75-125 FPM

=

x

[room changes per hour/60]

To determine exhaust volume for a particular fume hood, use the following equation: Exhaust volume (CFM) Face Velocity (FPM)

Face velocity can also be affected by sash position. As the sash is closed and the opening reduced, airflow face velocity increases at a constant CFM. The opposite is true as the sash is moved to the full open position. Likewise, a lower CFM can achieve the same face velocity for a sash located in a lower position than a sash in a higher position. This position can be locked in place by the use of a sash stop, available as an optional accessory. Another way that airflow can be enhanced is through the use of different sash configurations, thereby reducing the total CFMs required and saving operational costs for the facility. These sash stops and sash configurations can help to achieve low velocity air patterns at significant savings to the facility manager. Air Foil: The stainless steel airfoil is placed just below the sash on top of the work surface. The purpose of the airfoil is to reduce the turbulence of air entering the hood thereby ensuring a smooth flow of air across the work surface to the exhaust system. Exhaust volume requirements are affected by hood type, the number of air changes required per lab as well as hood usage. The definitions provided are meant to be helpful as guidelines but are not intended to replace consultation with your lab planner, HVAC professional or mechanical engineer. Final exhaust volume and face velocity determinations are to be made in conjunction with your HVAC professionals.

=

x

hood opening (ft2)

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Duct & Blower Configurations

Individual SystemThis configuration is the simplest approach to exhausting a fume hood and can be used with one or more fume hoods. Installation and material costs are higher with individual blower systems, but they are easier to balance and the failure of one blower will not affect use of remaining hoods. Although LEM can provide the blowers specifically made for fume hood applications, ductwork and plenum systems are typically bid and installed as part of the mechanical portion of the building contract.

Manifold SystemManifold systems are popular in many settings where multiple fume hoods are in use. Each hood is exhausted into the exhaust duct plenum and removed by a single, centralized blower. Because multiple hoods share a common blower and ductwork, manifold systems often cost less to install than individual systems. The HVAC professional is challenged, however, to insure that adequate makeup air is available for each hood, regardless of the number of hoods in operation at any given time, and that the total room HVAC system is properly balanced. A backup blower is advisable so that, in the event of a failure of the primary blower, all fume hoods will not be disabled at once. Although LEM can provide the blowers specifically made for fume hood applications, ductwork and plenum systems are typically bid and installed as part of the mechanical portion of the building contract. IMPORTANT: Perchloric acid hoods should ONLY be used with an individual system. Both individual and manifold configurations can be designed for either constant volume or variable air volume (VAV) systems.


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Technical Data & Dimensions

E1-Series Standard Aerodynamic Design

E2-Series Double Faced E1-Series

E3-Series Slim Line

E4-Series Walk-In Hood

E5-Series ADA Barrier-Free Design

E6-Series Radio Isotope Hood

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Technical Data & Dimensions

E7-Series Perchloric Acid Hood

E8-Series Flat Front

E9-Series Demonstration Hood

Plumbing Rough-In

Pre-PlumbUp is standard; Downisalso available upon request at no additional charge.


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Ordering Guide for

E-Series Fume Hood SeriesHood StyleE1-Series=Standard Aerodynamic Design E2-Series=Double Faced E1-Series E3-Series=Slim LIne E4-Series=Walk In E5-Series=ADA (Barrier Free Design) E6-Series=Radio Isotope E7-Series=Perchloric Acid E8-Series=Flat Front E9-Series=Demonstration Hood

Sash Style1=Vertical 2=Combination 3=Horizontal 4=Interlocking 5=Others

LEM- 5 2 1 - 48PART NUMBER

Liner TypeTo order specific hoods, see example here to determine part order number. This sample hood part number represents a 48 ADA hood with combination sash and poly resin liner board.1=Poly resin 2=Phenolic Resin 3=304 Stainless Steel 4=PVC 5=Special 6=316 Stainless Steel

Width36=3 48=4 60=5 72=6 96=8

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S ample Color Cha rtBelow is a representation of colors that are available. This does not limit the colors available however, as E-Series hoods can be painted to match any color required. Colors may vary from the printed ink colors. Actual metal color samples are available upon request.

Shadow

Champagne

Off White

Beige

Grey White

Light Almond

Platinum

Dark Grey

Designer White

Light Blue

Medium Blue

Colonial Blue

Black

Burgundy

Matte Grey

Forest Green

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LEM Catalog 2005

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Transcript of LEM Catalog 2005