Cryogenic Triple Eccentric Butterfly Valve

Size Range

DN15 to DN600

Pressure Class

PN10 / Class 150 to PN420 / Class 2500

End connection

Flanged · Butt-welding

Available sizes

Standard DN sizes covered by this product. Confirmed at quote.

Configure your variant(manually adjust box on the right if you require a different spec)

Size

DN15 (1/2")DN20 (3/4")DN25 (1")DN32 (1 1/4")DN40 (1 1/2")DN50 (2")DN65 (2 1/2")DN80 (3")DN100 (4")DN125 (5")DN150 (6")DN200 (8")DN250 (10")DN300 (12")DN350 (14")DN400 (16")DN450 (18")DN500 (20")DN600 (24")

Pressure

PN10PN16PN25PN40PN64PN100PN160PN250PN320PN400Class 150Class 300Class 600Class 900Class 1500Class 2500

End connection

FlangedButt-welding

Materials

All available material options per part. Click a pill to set it in the configurator.

body

Stainless SteelAlloy Steel

Features

• Triple eccentric design with stem axis offset from disc centre and body centre, and rotational axis at an angle to body channel axis
• Conical metal-to-metal sealing surfaces forming elliptical contact; sealing tightens under increased pressure
• Bidirectional zero leakage capability
• Inherently fire resistant and fire tested metal-to-metal seals
• Inspection port design enabling online (field) replacement of seat and seal without removing the valve from the line
• Extended bonnet plus drip tray maintains stuffing box temperature above 0 °C to prevent stem/packing freeze-lock
• Fully adjustable, field-replaceable stem packing system meeting fugitive emission certification standards
• Tortoise shell-type butterfly disc profile optimises Cv/Kv by maximising flow and reducing resistance
• Three-dimensional simulation optimisation used to control material behaviour under cryogenic conditions
• Compact and lightweight construction
• No abnormal valve cavity pressure build-up
• Eccentric design reduces operating torque and friction during opening/closing
• Self-locking characteristic: disc becomes tighter under pressure when closed

Notes

• Technical Specification available for download (content not published on page)
• Operator options listed as 'Manual, Pneumatic, Electric, etc...' — additional actuation types available on request

Description

A cryogenic triple eccentric butterfly valve available in flanged and butt-welding end connection forms, both incorporating inspection ports for online replacement of internals. The extended bonnet and drip tray design maintains stuffing box temperature above zero degrees Celsius to prevent stem freezing. Metal-to-metal conical sealing surfaces provide bidirectional zero leakage and inherent fire resistance under cryogenic operating conditions down to -196 °C.

Available pressure classes

Pressure classes this product is rated to.