LEEVES THE SOLUTION YOU’VE BEEN LOOKING...
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SLEEVES THE SOLUTION YOU ’ VE BEEN LOOKING FOR
Transcript of LEEVES THE SOLUTION YOU’VE BEEN LOOKING...
SLEEVES THE SOLUTION YOU’VE BEEN LOOKING FOR
THE CORE OF OUR VALVE
The core of the Larox pinch valve is the elastic sleeve, whichis the only part in contact with the medium. The full boresleeve integrates the valve to the pipeline. This full boredesign eliminates turbulence and minimizes pressurelosses. Technologically advanced Larox sleeves guaranteehigh wear and corrosion resistance, a trouble free operation,and extended lifetime. Our sleeves are 100% tight.
Larox sleeves are handmade layer bylayer in a quality process covered byISO 9001:2000. The standard sleevedesign consists of three sets of layers:the inner layer, the reinforcement layerand the outer layer.
• The inner layer, which is the onlypart in contact with the medium,is resistant to wear and chemicals.
• The reinforcement layer gives thesleeve its pressure retainingcapability. The operating pressureof the sleeve determines thereinforcement fabric to be usedin this layer.
• The outer layer protects the sleevefrom the external processenvironment.
All standard Larox sleeves areequipped with opening tags to ensurefull valve opening in all conditions.
A WIDE RANGE OF MATERIAL
AND DESIGN OPTIONS
Pinch valves are often applied inaggressive, abrasive and corrosivemedia types, or in high-pressureapplications. To cover a wider rangeof applications, our R&D hasdeveloped several sleeve materialsand constructions to meet theseindustry-specific needs.
The high-grade Larox sleeve materialsrange from wear resistant styrenebutadiene to numerous otherelastomers and rubber compounds.These materials are highly resistantto abrasive and corrosive slurries,powders and granular substances.By introducing a HNBR, hydrogenatednitrile sleeve material, Larox sleevescan now handle temperatures up to+320°F.
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SLEEVES
TECHNICAL FEATURES
• Size Range1“ - 40”
• Operating Temperature-58°F – +320°F
• Operating Pressure from Vacuum to1500 psig
PRODUCT FEATURES
• Flexible
• Self-cleaning
• Multilayer Construction
• Full Bore
• 100% Tight
• Only the Sleeveis in Contact withthe Medium
• Numerous ElastomerCompounds
• Special Sleeve Designs
PROCESS BENEFITS
• Excellent WearResistance
• High CorrosionResistance
• No Turbulence
• No Jamming or Clogging
• No Flow Restriction
• Reduced ProcessDowntime
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VACUUM SLEEVE
Specially designed for negative pressureapplications such as suction lines, pneumaticconveying with vacuum and for applicationswhere sleeve pulsation occurs.
• Sizes: from 1” to 28“
• Standard valve bodies: PV, PVE, PVE/Sand PVS
• Standard material range: SBRT, EPDM, NBR,NR, HNBR, CR, FPM, CSM and IIR
• Three standard flange shapes• Opening tags as standard
SENSOMATE SLEEVE
Larox SensoMate sleeve detects and signalscritical wear.
• The sleeve incorporates a steel mesh vulcanizedbetween the wear layer and reinforcement cords of the sleeve
• For electrically conductive media
• Available with all standard sleevematerials and sizes
CONICAL SLEEVE
Conical sleeves ensure the most accurate controlin flow control applications.
• Sizes: from 1” to 16”
• Standard valve bodies: PV, PVE, PVE/Sand PVS
• Standard material range: SBRT, EPDM, NBR,NR, HNBR, CR, FPM, CSM and IIR
• Reduced port is normally smaller than thepipeline size
• Three standard flange shapes• Opening tags as standard
POLYURETHANE (PU) LINED SLEEVE
Larox sleeves with polyurethane lining ensureimproved protection against wear. Polyurethanehas excellent resistance to abrasive media, whichmakes PU lined sleeves especially suitable fordemanding control applications.
• Maximum operating temperature: 176°F
• Sizes from 1” to 12”
• Applicable to most Larox standard sleevematerials
SPECIAL SLEEVE DESIGNS
Vacuum Sleeve Conical Sleeve SensoMate Sleeve Polyurethane (PU)Lined Sleeve
Several sleeve design options including a conical sleeve for control valves and avacuum sleeve for negative pressure applications are available. Larox´s sleevescan withstand pressures from vacuum up to 1500 psig. Maintenance is easy assleeve change requires no special tools.
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For more information on sleeve materials for Larox valves, contact your nearest Larox representative.Visit www.larox.fi/flowsys/ for contact information.
STANDARD SLEEVE MATERIALS FOR LAROX VALVES
OTHER SLEEVE MATERIAL OPTIONS
RUBBER QUALITY APPLICATION TEMPERATURE TYPICAL MEDIAEXAMPLES RANGE
SBRT Heavy wearing -40°F - +230°F Abrasive materialsStyrene Butadiene,Larox Blend High cycle frequency Diluted acid, alkali and
chemical applications
EPDM Chemical applications -40°F - +248°F Concentrated andEthylene Propylene • Applicable to 75% oxidizing chemicals
of all industrial chemicalapplications
RUBBER QUALITY APPLICATION TEMPERATURE TYPICAL MEDIAEXAMPLES RANGE
NBR Applications involving -22°F - +212°F Oils, Fats, FuelsNitrile Rubber oils, fats and hydrocarbon Hydrocarbon, Lubricants
NR High wear applications -40°F - +167°F Abrasive materialsNatural Rubber Diluted acids, alkali and chemicals
HNBR High temperature -22°F - +320°F Oils, Fats, FuelsHydrogenated Nitrile applications Hydrocarbon, Lubricants
NRF Foodstuff applications -40°F - +167°F Media used in food and otherNatural Rubber CIP (clean-in-place) processesFoodstuff Quality Alcohol
White inner lining Fulfils FDA (Food and DrugAdministration) requirements
NBRF Applications involving -22°F - +212°F Vegetable and animalNitrile Rubber fatty foodstuff oils and fats
White inner lining Fulfils FDA (Food and DrugAdministration) requirements
EPDM/B Pulp and paper industry’s -40°F - +212°F Green liquorEthylene Propylene, green liquor application Alkaline and extraneous matterLarox Blend in green liquor processes
CR Special-purpose chemical -40°F - +212°F Chemicals, AcidsChloroprene Rubber applications Several solvents
• Resilient to ozone Aliphatic oilsand averse weather Fats, Lubricants
FPM Special-purpose -4°F - +248°F ChemicalsFluorine Rubber chemical applications Aliphatic oils(Viton®) • Resilient to ozone and Aromatic and halogenated
averse weather hydrocarbon
CSM Special-purpose -40°F - +212°F Chemicals, AcidsChloro-sulphone- chemical applications Several solventsethylene • Resilient to ozone Aliphatic oils(Hypalon®) and averse weather Fats, Lubricants
IIR Special-purpose -40°F - +212°F Concentrated andButyl chemical applications acidic chemicals
• Impermeable to gas Vegetable oils
PU Abrasive media +14°F - +176°F Abrasive materialsPolyurethane applications Diluted chemicals• With PU lining Hydrocarbon
or solid PU Oils, Lubricants
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SLEEVE MODEL SELECTIONEXAMPLE: SBRT 150 4/9.84/3L6
Opening tags
Reinforcing cords
Wear-resistant inner lining
SBRT
SLEEVE MATERIALS
SBRT = styrene butadiene
EPDM= ethylene propylene
CR = chloroprene
CSM = chloro-sulphone-ethene
FPM = fluorine rubber
HNBR= hydrogenated nitrile
IIR = butyl
NBR = nitrile
NBRF = nitrile foodstuffquality
NR = natural rubber
NRF = natural rubberfoodstuff quality
PU = polyurethane
_/PU = PU coatinginside the sleeve
_/M = Larox SensoMatesleeve
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PRESSURECLASSES(PN)
15 = 15 psig
75 = 75 psig
150 = 150 psig
240 = 240 psig
365 = 365 psig
600 = 600 psig
940 = 940 psig
1500 = 1500 psig
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SLEEVEINNERDIAMETER(INCHES)
1” - 40 “
9.84
SLEEVELENGTH(INCHES)
Depends onthe sleeveinner diameter
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FLANGESHAPE
type 1
type 3
type 4
L
OPENINGTAGS
L = yes
- = none
/ /
Determinedby the valvemanufacturer
(dependingon the valvediameter /pressureclass)
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FLANGEDRILLINGS
1 = -
2 = DIN PN 10
3 = DIN PN 16
4 = DIN PN 25
5 = DIN PN 40
6 = ANSI 150
7 = ANSI 300
8 = BS TABLE D
9A = AS TABLE D
9B = AS TABLE E
9C = JIS 10
9D = JIS 16
X = other, mustbe specified
MANUAL
VALVES
AUTOMATIC
VALVES
THE SOLUTION YOU’VE BEEN LOOKING FOR
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LAROX FLOWSYS INC • 808 BARKWOOD COURT SUITE N, LINTHICUM, MD 21090
TEL. 410-636-2250 • Fax 410-636-9062 • E-MAIL [email protected] • WWW.LAROX.US
Sleeves 12/06 USA
TYPE APPROVALP-11460
FOR YOUR LOCAL LAROXREPRESENTATIVE
PLEASE CALL
1-888 - FLOWSYSOR
1-888-356-9797
