Low-Temperature Backflow Protection for Critical Pipelines
Oswal Cryogenic Check Valves employ extended bonnets to keep packing above the vapour line and maintain tight sealing at ultra-low temperatures. Ideal for LNG terminals, hydrogen networks, petrochemical and power applications.
Size Range & Pressure Class
Size: 2” to 14”
Pressure Class: 150#, 300#, 600#, 800#, 900#, 1500#
Seat/trim options available for sour, corrosive and erosive media.
Materials of Construction (MOC)
Metallurgy options for corrosion resistance and low-temperature toughness:
Trim metallurgy tailored for cryogenic, corrosive and sour services.
Product Specifications
| Size Range | 2" to 14" |
|---|---|
| Class |
150#
300#
600#
800#
900#
1500#
|
| MOC |
Carbon Steel
Low Alloy Steel
Low Temperature Carbon Steel
Low Temperature Alloy Steel
Stainless Steel
Duplex & Super Duplex Steel
Inconel
Monel
Hastelloy
|
| End Connections / Construction |
Flange End
Butt Weld End
Socket Welded
Screwed
Extended Bonnet
Rising Stem
|
| Design Standard |
BS 1868
API 594
API 6D (Metal Seat)
|
| Testing Standard |
API 598
BS EN 12266-1
|
| Operation Type |
Manual
Gear Operated
Actuator Operated
|
| Industries |
Oil & Gas
Petrochemicals
Chemicals & Fertilizers
Green/Blue Hydrogen
Power
LNG
FPSO
Water
|
Why Choose Oswal Cryogenic Check Valves?
Cryogenic Reliability
Extended bonnet keeps packing above the vapour line for tight sealing below −100 °C.
Standards-Compliant
API 594 / BS 1868 design; API 598 & BS EN 12266-1 testing; API 6D metal-seat option.
Versatile Configurations
Flanged, BW, SW and screwed ends; sizes 2”–14”; classes 150–1500.
Material Flexibility
CS, SS, Duplex & super alloys for corrosive, sour and cryogenic services.
Get A Quote
Share size, class, end connection and service—our engineers will recommend the optimal configuration.