Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive.
Nominal diameter: DN40 - DN600
Pressure range: PN1.0 - 1.6MPa
Working temperature: -196℃ - +560℃
Stem: Stainless Steel
Spring: Stainless Steel
Body: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, etc
Main Parameter Specification
Inspection and test: API598, JB/T9092;
Design and manufacture: API594, API 6D, JB/TB8937;
Face to face and end to end: API6D, DIN3202, JB/T8937;
Pressure-temperature rating: GB/T9124, HG20625, SH3406, JB/T74;
Pipe flange: JB/T74~90, ASME B16.5, DIN2543~2548, GB/T13402, ASME B16.47.
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