Home > Stainless Steel Check Valves
Harsh Metalloys, based in Mumbai, India, is a reliable manufacturer and supplier of top-notch Stainless Steel Check Valves, which play a crucial role in preventing backflow in piping systems. Crafted from high-quality stainless steel grades like 304, 316, 316L, and 904L, our check valves guarantee dependable, corrosion-resistant performance across a variety of industrial applications. Built for longevity and leak-proof sealing, these valves meet international standards such as API, ANSI, and DIN. Harsh Metalloys provides an extensive selection of check valve types, including swing, lift, and dual plate, perfect for industries like oil & gas, water treatment, chemical processing, and power generation.
Stainless Steel Check Valves are generally constructed from austenitic stainless steels that contain 18–25% Chromium and 8–22% Nickel. Grades like 316 and 904L include extra Molybdenum for improved corrosion resistance. These valves boast tensile strength ranging from 485–620 MPa and yield strength between 170–310 MPa. Their sturdy design and corrosion-resistant surfaces ensure a long service life, even in high-pressure, high-temperature, and chemically aggressive environments. The materials used provide excellent weldability and resistance to scaling, making them ideal for challenging industrial fluid control applications.
| Pressure | Up to 6000 psi |
|---|---|
| Temperature | Up to 350° F |
| Body Material | 316 SS |
| End Connections | Duolok, Griplok and Unilok tube ends, male and female NPT and BSPT |
| End Connection Sizes | 1/8 to 1/2 in. |
| Material | C | Si | Mn | P | S | Cr | Ni | N |
|---|---|---|---|---|---|---|---|---|
| Stainless Steel | 0.080 max | 0.75 max | 2.00 max | 0.045 max | 0.030 max | 18.00-20.00 | 8.00-10.50 | 0.100 max |
| Material | Yield Strength | Tensile Strength | Elongation (%) | Reduction of Area (%) | Hardness Max | |
|---|---|---|---|---|---|---|
| Min (Mpa) | Min (Mpa) | Min | Min (50mm) | HB | HR B | |
| Stainless Steel | 170 | 458 | 30 | 50 | 201* | 92* |
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We offers high quality stainless steel check valves, rigorously tested for durability and performance. Each valve undergoes a rigorous quality control program, including pressure, leakage and functional testing, to ensure reliability in harsh environments. Certified to industry standards, our valves guarantee optimum efficiency, safety and long-term performance for all applications.
Stainless steel inline check valves, available in sizes from 1/4″ to 12″, ensure reliable backflow prevention with high corrosion resistance. Their compact design is suitable for various industrial and pipeline applications.
Stainless steel swing check valves, ranging from 1/2″ to 12″, offer excellent corrosion resistance and efficient backflow prevention. The swing mechanism allows for smooth, reliable operation in diverse industrial settings.
Non-slam check valves, made from corrosion-resistant stainless steel, are available in sizes from 1″ to 12″. They prevent water hammer and backflow, ensuring smooth operation in high-pressure systems.
Tilting disc check valves, sized from 1″ to 12″, feature a tilting disc design for precise backflow prevention. Their stainless steel construction ensures high corrosion resistance and durability in demanding applications.
Stainless steel lined check valves, available in sizes from 1/2″ to 12″, offer enhanced corrosion resistance with a lining for protection. Ideal for handling aggressive media and preventing backflow in various systems.
Stainless steel check valves come in sizes from 1/4″ to 12″, providing reliable backflow prevention and high corrosion resistance. Suitable for a wide range of industrial applications requiring robust and durable flow control.
Stainless Steel Check Valves are used to prevent reverse flow and protect pumps, compressors, and pipelines in various systems. They find extensive applications in oil & gas, petrochemical, water treatment, power plants, and chemical processing industries. Commonly installed in pipelines carrying liquids, gases, or steam, these valves help maintain system integrity and prevent damage caused by backflow. Their corrosion resistance makes them suitable for seawater, acidic, and high-temperature environments. Additionally, they are used in HVAC systems, fire protection, and pharmaceutical manufacturing, where reliable one-way flow control is crucial for safety and efficiency.







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