Efficient Backflow Prevention for Pipelines & Process Plants
Oswal Dual Plate Check Valves use a spring-assisted twin door mechanism to allow forward flow and close quickly on reversal, helping protect equipment and reduce surges. The compact face-to-face makes them ideal for space-constrained installations across oil & gas, petrochemicals, LNG, hydrogen and power.
Size Range & Pressure Class
Size: 2” to 24”
Pressure Class: 150#, 300#, 600#, 800#, 900#, 1500#, 2500#
Seat and trim selections available to suit service conditions and temperature range.
Materials of Construction (MOC)
Corrosion-resistant metallurgy for severe and cryogenic applications:
Trim choices tailored for corrosive, erosive and low-temperature media.
Product Specifications
| Size Range | 2" to 24" |
|---|---|
| Class |
150#
300#
600#
800#
900#
1500#
2500#
|
| 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 Dual Plate Check Valves?
Compact & Efficient
Wafer-style body saves space and reduces pressure drop compared to swing designs.
Standards-Compliant
API 594 / BS 1868 design; API 598 & BS EN 12266-1 testing; API 6D metal-seat option.
Broad Applicability
Suitable for oil & gas transmission, LNG terminals, hydrogen, power and water networks.
Material Flexibility
CS, SS, Duplex & super alloys available for corrosive, sour and low-temperature duties.
Get A Quote
Tell us size, class, end connection and service—our engineers will recommend the optimal configuration.