Bandlock 2Qu ick ope n i ng closu r e

Based in Charlotte, North Carolina,

SPX Corporation (NYSE: SPW) is a global

Fortune 500 multi-industry manufacturing

leader. The companys highly-specialized,

engineered products and technologies serve

customers in three primary strategic growth

markets: infrastructure, process solutions, and

diagnostic systems. Many of SPXs innovative

solutions are playing a role in helping to

meet rising global demand, particularly in

emerging markets, for electricity, processed

foods and beverages and vehicle services.

The companys products include thermal heat

transfer equipment for power plants; power

transformers for utility companies; process

equipment for the food & beverage industry;

and diagnostic tools and equipment for the

vehicle service industry. For more information,

please visit www.spx.com.

GD Engineering is a market leader in

the design and manufacture of pipeline

pigging solutions to the oil, gas and

process industries worldwide. We

manufacture a range of innovative and

proven products including the industry

leading Bandlock 2 Closure, Hi-T

Pigalert scraper passage indicator and

associated equipment.

We provide advanced solutions where

design innovation, performance and

reliability need to go hand in hand

in the most cost-effective way. Our

strategy is to create market advantage

through technology, service and product

leadership, by expanding our market

focus to offer full customer solutions.

Bandlock 2 Quick-Opening Closure

i n novative D e s ig n Featu r e s

The GD Bandlock 2 is the original and benchmark design for

global high-pressure applications with over 20,000 units in operation

worldwide. GD Bandlock 2 Closures provide horizontal or vertical

access to any pressure vessel in seconds. Compared with other quick-

opening closures they can be operated safely at remarkable speed

any size of unit can be opened or closed in less than a minute, with no

special tools required.

Computer-aided technology has played a large part in the design of

Bandlock 2. The main pressure-loaded sections have been designed

to save weight by employing finite element analytical techniques and

proof testing by strain gauges, while still adhering to primary pressure

vessel code requirements.

The tried and tested locking band mechanism which gives the range its

name is a duplex stainless steel conical thrust ring fitted between the

door and hub, transmitting the pressure load uniformly around the full

360 circumference of the hub.

i nteg ral saFety D evice s

Safety has been engineered into the Bandlock 2 at every stage of

its design and manufacture. A hand-operated pressure warning screw

integrated into the mechanism prevents the door being unlocked

until it is confirmed that the vessels internal pressure has been

relieved. Additional secondary safety features, such as mechanical key

interlocks, can be fitted and integrated with control valve operations.

For complete safety, the locking band can be seen at all times, which

satisfies design code requirements and means that the operator can

actually see that the door is securely closed and locked.

Door H i ng i ng

For horizontal use the door is double pivoted on hinges with self-

lubricating bearings. The bolted fitment allows adjustment for wear and

can be specified for right or left swing.

Vertical installation includes a davit which enables the Bandlock 2

door to be lifted and swung clear of the hub. At diameters over 30,

lifting eyebolts are normally fitted instead of the davit, so that the door

can be lifted out of the way.

3Typical product applications

pipeline pig traps

Filters

coalescers

strainers

separators

Meter skid systems

Hydrocyclones

s eal Mate r ial

The standard seal is 80 shore hardness Nitrile material.

Viton, HNBR and Rapid Gas Decompression (RGD) resistant

material grades are also available. A range of materials are

available to cover a temperature range of -45C to +210C

(-49F to +410F) according to the elastomer specified.

HyD rostatic te sti ng

Normally carried out as part of the final vessel test but an

individual closure hydrotest can be provided as an option.

u n iQu e s eal witH i nteg ral

anti-extr us ion s pr i ng

To give a completely pressure-tight seal, the purpose-designed

servo acting lip seal energizes at zero pressure. For both

Horizontal and Vertical Installations the seal is housed in the

door away from the working area for protection and long life,

and is easily fitted without tools. The one-piece moulding is

available in a range of elastomers and incorporates a stainless

steel spring to prevent extrusion and provide a full vacuum

capability. Bandlock 2 unique seal

Pressure Warning Screw

Pressure Warning Screw Seal

Locking Plate and Segment

Bandlock 2 Seal

4s i z e an D pr e ssu r e rang e

Bandlock 2 is available to suit differing vessel sizes and

pressures from 6 to 100 diameters with hub sized for

welding to any diameter and thickness, for any pressure

from ASME Class 150 though to 2500 (425 bar working

pressure).

Mate r ials

Forged steel hubs with forged or plate doors can be

supplied to meet all international material specifications.

NACE Standard MR-01-75 / ISO 15156 materials are

available.

approve D D e s ig n

Standard units meet ASME VIII Div.1. The requirement of

other pressure vessel codes, such as ASME VIII Div. 2 and

PD5500 can be accommodated. ASME Code Stamp with

U-2A partial data report can be furnished as an option. Code

stamping verifies shop inspection of the closure and materials

by an ASME Authorised Inspector.

e u ropean pr e ssu r e eQu i pM e nt

D i r ective (97/23/ ec)

The following options are available:

Technical file submitted to vessel fabricator for incorporation

into CE Marking of vessel

CE Marking of Closure by GD Engineering

tecH n ical s peci Fication s

size range 6 to 100 Nomina l d iameter

class ratings

ASM E 150# through to 2500#

For Pressures in excess o f 2500# contact G D Engineer ing .

Design specif icat ions

ASM E VI I I D iv is ion 1

ASM E VI I I D iv is ion 1 wi th U Stamp

ASM E VI I I D iv is ion 2

ASM E VI I I D iv is ion 2 wi th "U" Stamp

PD 5500 / B S E N 13445

closure orientat ion Hor izonta l or Ver t ica l .

termination Design specif icat ions

ASM E B31.3 , B31.4 , B31.8

Other In ternat iona l s t andards are ava i lab le on request .

types of connectionButt Welded, But t Welded wi th mi t re for inc l ined/dec l ined vesse ls , Reduced

Access or F langed to c l ients requ i rements .

Materials of construct ion

ASTM A350 LF2 / ASM E I I SA350 LF2

ASTM A105 / ASM E I I SA105

ASTM A694 F42 to ASTM A694 F70

Grade 304L or 316L Sta in less Stee l

Duplex Sta in less Stee l (U NS S31803)

elastomeric seal ingNit r i le , Vi ton and Rapid Gas Decompress ion Res is t ant . Other mater ia l opt ions

ava i lab le on request .

standard closure Finish Removable rust preventat i ve for c l ient to f in ish pa in t a f te r we ld ing to vesse l .

special closure Finish Grade 316 Sta in less Stee l or Inconne l 625 Weld Over lay

accessories

The Bandlock 2 Closure can be f i t ted wi th a Smi th F low Cont ro l Type DL-3

In ter lock . Other types o f in ter locks ava i lab le on request .

Hor i zonta l Closures can be suppl ied wi th protect ive weather covers (Ver t ica l

c losures are suppl ied wi th protect ive weather covers as s t andard) .

5

6Ban D lock 2 coM pon e nts

vertical closure components: lift-out arrangement

vertical closure components c/w Davit

Universal Handle

Dr ive L ink

Pressure Warning Screw

Horseshoe L ink Locking Band

Name Plate

Hinge

Adjuster Screw

Drain Groove

InstructionPlate

Universal Handle

Dr ive L ink

Pressure Warning Screw

Horseshoe L ink

Name Plate

Li f t ing Lugs

Segmented Locking Band

Universal Handle

Dr ive L ink

Pressure Warning Screw

Horseshoe L ink

Handwheel

Davi t Arm

Locking Band

Horizontal closure components

7ope rati ng s eQu e nce

Operational safety has been engineered into the

Bandlock 2 Closure at every stage of its design and

manufacture.

step 1

Before attempting to open the closure, check that the

vessel is fully isolated, drained and vented from any

pressure source. On completion of the isolation and

venting procedure, slacken off the pressure warning screw

without attempting to remove it, any residual pressure in

the unit will be indicated. Should an indication be given,

close the pressure warning screw and re-check the status

of all valves.

step 2

When completely satisfied that the closure is safe to open,

remove the pressure warning screw and its integral locking

plate from the closure.

step 3

Locate the universal handle into the drive link mechanism

attached to the Horseshoe mechanism. Make sure that the

universal handle is positively located in the hole provided.

step 4

Rotate the universal handle anti-clockwise through

approximately 180. This will actuate the drive link and

horseshoe mechanism and progressively contract the band

onto the door recess. The universal handle should then be

removed.

step 5

Using the door hinge handle, swing the door into its open

position with minimal force. The door is mounted on a

double pivot mechanism which gives a degree of straight

line movement and also allows the door to be rotated for

access to the seal and band.

Closing the Bandlock 2 Closure is simply a reversal of

the opening sequence.

ste p 1

ste p 2

ste p 3

ste p 4

ste p 5

Bandlock 2Qu ick ope n i ng closu r e

s px Flow tecH nology

SPX International Ltd

Retford Road

Worksop

Nottinghamshire, S80 2PY

P: +44 1909 482323

F: +44 1909 477902

E: gd@spx.com

SPX reserves the right to incorporate our latest design and material changes without notice or obligation.

Design features, materials of construction and dimensional data, as described in this bulletin, are provided for your information only and should not be relied upon unless confirmed

in writing. Please contact your local sales representative for product availability in your region. For more information visit www.spx.com.

The SPX Flow Technology segment designs, manufactures and installs highly engineered solutions used to process, blend, meter and transport fluids, in addition to solutions for air

and gas filtration and dehydration. The segment supports global food and beverage, dairy, pharmaceutical, oil and gas, energy, and industrial markets. SPX (NYSE: SPW) is a global

Fortune 500 multi-industry manufacturing leader with over $5 billion in annual revenue, operations in more than 35 countries and over 18,000 employees. For more information,

please visit www.spx.com

The green > is a trademark of SPX Corporation, Inc.

Issued: GD-1020 - EN - 01/2013 COPYRIGHT 2012 SPX Corporation