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We are dedicated to supplying the highest quality valves. Discover our solutions
Isolation Valves
Check / Non‑Return Valve

Check / Non‑Return Valve

Here you can learn about how check (non‑return) valves work, their key advantages, technical specifications, and typical industry uses - and browse our full range of products.

How do Check / Non‑Return valves work? 
A check valve allows flow in one direction only, preventing reverse flow that could damage equipment or disrupt processes. It operates automatically using a disc, ball, or piston that closes when flow reverses.
Advantages of Check / Non‑Return valves...
• Prevents backflow
• Protects pumps and equipment
• Operates automatically (no manual control)
• Low maintenance
Technical Parameters:
Pressure Ratings
PN10, PN16, PN25, PN40, PN63, PN100, CL150, CL300, CL600, CL900, CL1500, CL2500
Temperature Range
Typically –50 °C to +600 °C (material dependent)
Size Range
DN15–DN1200 (½″–48″)
Materials
Carbon steel, stainless steel, bronze, ductile iron, nickel alloys
Industry Application:
Nuclear
EFW
Oil & Gas
Power
Media Type:
Water
Gas
Steam
Oil
Chemicals

View products

View products

Clampseal Check Valve
Conval®
Overview:
Industry Use:
Nuclear
EFW
Oil & Gas
Power

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Where deep industry insight meets cost-effective, reliable valve solutions. Contact us today to streamline your supply chain and boost your performance.

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