Reliable Non-Return Valves for Critical Services
Oswal Swing Check Valves ensure one-directional flow using a self-actuated disc and robust hinge assembly. Suitable for horizontal and vertical (flow-up) installations across oil & gas, LNG, power, and chemical pipelines.
Size Range & Pressure Class
Size: 2” to 30”
Pressure Class: 150#, 300#, 600#, 800#, 900#, 1500#, 2500#
Available with bolted covers, renewable seats and optional dashpot for slam reduction.
Materials of Construction (MOC)
Corrosion-resistant metallurgy for severe operating conditions:
Trim options suitable for corrosive, erosive and cryogenic applications.
Product Specifications
| Size Range | 2" to 30" |
|---|---|
| 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 6D
BS 6364 / ISO 28921
|
| 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 Swing Check Valves?
Backflow Protection
Ensures one-directional flow and mitigates surge damage; optional dashpot reduces slamming.
Standards-Compliant
Designed to BS 1868 / API 6D, tested to API 598 & BS EN 12266-1; cryogenic options to BS 6364.
Versatile Construction
Multiple end connections and a broad class range for pipeline and process applications.
Material Flexibility
CS, SS, Duplex & super alloys for corrosive, sour and cryogenic services.
Get A Quote
Share size, class, end connection and service conditions — we’ll recommend the optimal configuration.