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BronzeGateValveDN80DN2000 pages
Bestobell
nnnnCryogenic Valves
nnnnCryogenic Bronze Gate Valve
nnnnBolted Bonnet - Extended Spindle
nnnnDN80 - DN200 (3" - 8")
nnnnDescription
nnnnBronze extended spindle gate valve with bolted bonnet integral soft seat and
nnnnbronze internals. Available with butt weld ends, the valve has a wedge seat
nnnndesign for tight shut off designed to seal on downstream seat only in order to
nnnnprevent liquid lock. The bolted bonnet allows for simple site maintenance, with
nnnneasy access to the serviceable parts of the valve.
nnnnAll valves are degreased for oxygen duty, assembled in clean room conditions
nnnnand pressure tested prior to despatch.
nnnn(Image shown is Stainless Steel model)
nnnnMaximum Working Pressure (MWP)
nnnn(Subject to end connection)
nnnn40 bar (580 psi) at -196°C to +65°C
nnnnBody Strength Test 1.5xWP = 60 Bar (870 psi)
nnnnFeatures
nnnn• Unique Bestobell gate valve design featuring complete removal of the wedge
nnnnand body seat with the headworks (see opposite). This enables the removable
nnnnseat to have a lapped finish, instead of a standard machined finish, giving
nnnnsuperior shut off and greatly increased life of the PTFE wedge seal. The seat
nnnnitself can also be replaced, eliminating the need to cut out the valve body from
nnnnthe line once seat damage has occurred, as required with all other gate valves
nnnn• Bestobell "Flexi-wedge" phosphor bronze disc with PTFE seal, mounted within
nnnnthe stainless steel wedge, for tight shut off in cryogenic conditions despite the
nnnnthermal expansion and contraction
nnnn• Bolted bonnet design for easy removal of headworks even in confined spaces
nnnn• Lightweight design gives excellent thermal characteristics
nnnn• Anti-blow out spindle and one-piece high strength stem design for operator
nnnnsafety
nnnn• Spring loaded PTFE chevron gland design, phosphor bronze insert and low
nnnntorque stem thread for long service life and easy manual operation
nnnnTechnical
nnnnManual Gate Valves with bolted bonnet, extended
nnnnbonnet, socket weld and butt weld ends, soft PTFE
nnnnseats. Actuated valves available.
nnnnISO 9001 accreditation - design and manufacture to
nnnnASTM B31.3&BSEN1626.
nnnnOptional full material traceability backed by BSEN
nnnn10204 3.1 / 3.2 Certification.
nnnnDesigned and engineered for use with 02, N2, Ar,
nnnnC02, He, Kr, Ne, H2, C2H4 and N20 and LNG service.
nnnnC € Marking according to Pressure Equipment
nnnnDirective 97/23/EC.
nnnnTT Marking to Directive 99/36/EC only on written
nnnnrequest complete with purchase order.
nnnnFor other options please contact us.
nnnn■ Screwed and welded high strength extension tube and bonnet joints
nnnnT+44(0) 114 224 0000
nnnnF+44(0) 1142784974
nnnnsales@bestobellvalves.com
nnnnwww.bestobellvalves.com
nnnnBestobell, President Park, President Way, Sheffield, S4 7UR
nnnnUnited Kingdom
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