WEKA cryogenic valves satisfy all requirements for installation in vacuum-insulated cryogenic systems.

Valve characteristics

In general, WEKA Q valves have the same characteristics as the bellow valves. However, they are not sealed metallically to the outside, but with a soft seal. Typically, they are used for liquid nitrogen applications at temperatures up to 80K.

Their design is optimised for the ingress of heat.

Materials

Housing and parts in contact with the medium: 304/304L, 316/316L stainless steel

Seat sealing: PTFE, other sealings for special requirements

Control cone: Aluminium bronze

Testing

Each valve is subjected to a pressure test at 1.5*PN and integrally tested for tightness to the outside using helium. The tightness below the seat is also tested for the nominal pressure or for an operating pressure defined by the customer.

Application

Liquid nitrogen, LNG

Q-Valve 80K

PM-TxQV
PK-TxQV
EG-TxQV
HI-TxQV
HIc-TxQV
HIcp-TxQV
HIs-TxQV
HIsp-TxQV
HL-TxQV

Q-Valve warm

PM-WxQV
PK-WxQV
EG-WxQV
HI-WxQV
HIc-WxQV
HIcp-WxQV
HIs-WxQV
HIsp-WxQV
HL-WxQV
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