Cryogenic Gate Valve Low-Temperature LCB LC1 LC2 LC3 LC9 CF8 CF8M
Applications such as liquefied natural gas and other
low-temperature fluids, present special extreme temperature valve
functionality challenges. Valves designed for cryogenic services,
are specially prepared and designed to overcome these challenges.
Appropriate component materials such as 304SS (CF8) and 316SS
(CF8M) are normally used for body and trim, offering superior
impact strength, and excellent corrosion resistance and heat loss
properties. An extended bonnet and gas column design is also
normally adopted to provide thermal insulation at the stem seal and
stem packing area. At sufficient length, this design feature places
the functionality of the stem seal in the vapor zone of the liquid
media providing safe and continuous valve operation. A variety of
body, trim, seat and seal materials are available for use in
cryogenic service. Customer specified options, such as body cavity
vent hole, special extension lengths, and materials are also
available upon request.
Features of Cryogenic Gate Valves:
Applicable for Low Temperatures down to -320°F(-196°C)
Extended Bonnet
Pressure release holes
Materials subzero treatment and test
Designs according to ASME B16.34
Applicable standards of Cryogenic Gate Valves:
a) Design & Manufacture: API 602, BS 5352, ASME B16.34
b) Face to Face: ASME B16.10, EN 558, MSS SP-84
c) Connection End: ASME B1.20.1, ASME B16.11, ASME B16.25, EN 1092
d) Test and Inspection: API598, EN 12266, ISO 5208
