Cryogenic ball valves are manufactured for extremely low temperature and cryogenic applications. Valves are designed with an integral bonnet extension which prevents cryogenic liquids from reaching the stem packing by enabling the liquids to boil and convert to gas. This minimizes the energy loss along the extension and protects the valve from malfunctioning. The structural integrity of the valve reduces any thermal deformation of internal components caused by temperature variance to a minimum, ensuring the highest level of performance for tight shut-off in critical LNG fields.
Cryogenic ball valves are manufactured for extremely low temperature and cryogenic applications. Valves are designed with an integral bonnet extension which prevents cryogenic liquids from reaching the stem packing by enabling the liquids to boil and convert to gas. This minimizes the energy loss along the extension and protects the valve from malfunctioning. The structural integrity of the valve reduces any thermal deformation of internal components caused by temperature variance to a minimum, ensuring the highest level of performance for tight shut-off in critical LNG fields.
Based on BS 6364, MESC 77/200, ISO 28921‐1 and customer requirements
-320 to 212°F (-196 to 120°C)
NPS 1-30 (DN 25-750)
ASME 150 - ASME 900
As per API 6D standard
RF, RTJ as per B16.5 &B16.47
BW, Butt Welded as per B16.25
Low-Temperature Carbon Steel，Stainless Steel, Duplex, Super Duplex, Inconel.
Forged bolted two-piece and three-piece
Soft or metal seated with hard facing on ball and seats
Seat design to avoid trapped fluid in body cavity
Secondary seals in pure Graphite
Anti-static device
Anti-blowout stem
Lip seal configuration
Low fugitive emission stem packing available
Extended bonnet for low and cryogenic service
Manual: wrench or gear with padlocking
Actuated: Pneumatic/ Hydraulic/Electric
Compliance with BS 6364, MESC 77/200, ISO 28921‐1 inspection and testing
Fire safe and fire tested as per API 607 /API 6FA/ISO 10497
SIL 3 Certification as per IEC61508
Fugitive Emission as per ISO15848
PED 2014/68/UE
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