Forged Steel Flange Check Valve

Our Forged Steel Flange Check Valve is a one-way automatic valve that operates solely by the pressure of the flowing medium, requiring no manual or external power supply. Crafted through high-pressure forging technology, the valve body is made from a single solid piece of high-quality forged steel, which grants it superior strength, durability, and resistance compared to cast or welded valves. The flange connection design ensures easy installation, maintenance, and disassembly, while the precision-engineered structure guarantees tight sealing and stable performance even in the most demanding industrial conditions.

Widely used in oil & gas, power plants, chemical industry, petroleum refining, steel mills, and other key fields, this valve effectively handles water, oil, gas, steam, and even some corrosive media, providing long-term, trouble-free service for your piping system.

1.Superior Forged Steel Construction : Made of high-quality forged steel (A105, F304, F316, F11, F22, LF2, etc.), the valve body features excellent mechanical properties, high tensile strength, and impact resistance. The one-piece forging process eliminates internal defects, ensuring it can withstand extreme pressures and temperatures without deformation or leakage.

2.Reliable Non-Return Performance : Equipped with a precision-machined piston or swing disc, the valve achieves tight sealing and rapid response. It automatically opens when the medium flows forward and closes instantly when flow stops or reverses, effectively preventing backflow, pump reversal, and container discharge, thus protecting the entire piping system and equipment.

3.Flange Connection for Easy Installation : Adopting ANSI B16.5 flange standard, the valve can be quickly bolted to the piping system without complex welding procedures. This design not only simplifies installation and maintenance but also ensures a leak-free connection even under high pressure, reducing downtime for maintenance or replacement.

4.High Temperature & Pressure Resistance : Designed to meet API 602 and ASME B16.34 standards, the valve supports pressure ratings from Class 150 to 2500 LB and temperature ranges from -29℃ to +425℃ (higher or lower temperatures available on request). It is suitable for harsh working conditions such as high-pressure steam pipelines and petrochemical refining systems.

5.Corrosion & Wear Resistance : The valve disc and seat are treated with Stellite (cobalt-based hard alloy) plasma spraying or overlay welding, featuring high hardness, wear resistance, and corrosion resistance. This extends the service life of the valve and reduces maintenance costs by minimizing the need for part replacement.

6.Compliance with International Standards : Strictly manufactured and tested in accordance with API 602, ASME B16.34, ISO 15761, and API 598 standards. The valve also meets NACE MR-01-75 for sour service conditions and holds CE, ISO 9001, and ISO 15848-1 certifications, ensuring quality and compatibility with global industrial systems.

- Oil & Gas Industry : Upstream exploration, midstream transportation, downstream refining, and offshore platforms

- Power Plants : Thermal power, nuclear power, and hydropower plants (steam and water pipelines)

- Chemical & Petrochemical Industry : Chemical reactors, solvent pipelines, and corrosive medium transportation

- Steel & Metallurgical Industry : Smelting equipment, cooling water, and steam pipelines

- Water Treatment & Utilities : High-pressure water supply, sewage treatment, and boiler systems

- Pharmaceutical & Food Industry : Sanitary-grade pipelines (with stainless steel material option)

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