BronzeGateValveDN80DN2000 pages

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Bestobell

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Cryogenic Valves

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Cryogenic Bronze Gate Valve

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Bolted Bonnet - Extended Spindle

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DN80 - DN200 (3" - 8")

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Description

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Bronze extended spindle gate valve with bolted bonnet integral soft seat and

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bronze internals. Available with butt weld ends, the valve has a wedge seat

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design for tight shut off designed to seal on downstream seat only in order to

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prevent liquid lock. The bolted bonnet allows for simple site maintenance, with

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easy access to the serviceable parts of the valve.

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All valves are degreased for oxygen duty, assembled in clean room conditions

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and pressure tested prior to despatch.

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(Image shown is Stainless Steel model)

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Maximum Working Pressure (MWP)

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(Subject to end connection)

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40 bar (580 psi) at -196°C to +65°C

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Body Strength Test 1.5xWP = 60 Bar (870 psi)

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Features

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• Unique Bestobell gate valve design featuring complete removal of the wedge

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and body seat with the headworks (see opposite). This enables the removable

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seat to have a lapped finish, instead of a standard machined finish, giving

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superior shut off and greatly increased life of the PTFE wedge seal. The seat

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itself can also be replaced, eliminating the need to cut out the valve body from

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the line once seat damage has occurred, as required with all other gate valves

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• Bestobell "Flexi-wedge" phosphor bronze disc with PTFE seal, mounted within

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the stainless steel wedge, for tight shut off in cryogenic conditions despite the

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thermal expansion and contraction

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• Bolted bonnet design for easy removal of headworks even in confined spaces

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• Lightweight design gives excellent thermal characteristics

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• Anti-blow out spindle and one-piece high strength stem design for operator

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safety

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• Spring loaded PTFE chevron gland design, phosphor bronze insert and low

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torque stem thread for long service life and easy manual operation

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Technical

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Manual Gate Valves with bolted bonnet, extended

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bonnet, socket weld and butt weld ends, soft PTFE

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seats. Actuated valves available.

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ISO 9001 accreditation - design and manufacture to

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ASTM B31.3&BSEN1626.

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Optional full material traceability backed by BSEN

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10204 3.1 / 3.2 Certification.

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Designed and engineered for use with 02, N2, Ar,

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C02, He, Kr, Ne, H2, C2H4 and N20 and LNG service.

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C € Marking according to Pressure Equipment

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Directive 97/23/EC.

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TT Marking to Directive 99/36/EC only on written

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request complete with purchase order.

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For other options please contact us.

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■ Screwed and welded high strength extension tube and bonnet joints

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T+44(0) 114 224 0000

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F+44(0) 1142784974

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sales@bestobellvalves.com

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www.bestobellvalves.com

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Bestobell, President Park, President Way, Sheffield, S4 7UR

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United Kingdom

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