The Cast Steel Dual Plate Wafer Check Valve – Class 150 is designed for reliable backflow prevention in horizontal or vertical pipelines where space, weight, and performance matter. Constructed from ASTM A216 WCB cast steel, this valve delivers excellent mechanical strength and durability, making it suitable for a wide range of industrial and process applications.
Its dual plate design provides quick, spring-assisted closure to minimise water hammer and pressure surges, ensuring smooth operation and protection of pumps and downstream equipment. The 304 stainless steel plates and optional Viton seat offer outstanding resistance to corrosion and provide a tight seal across a range of pressures and temperatures.
Manufactured to API 594 standards and tested in accordance with API 598, this valve ensures dependable, high-quality performance that meets global industry requirements. With a wafer body that fits easily between ASME B16.5 Class 150 flanges, it offers a lightweight, space-saving solution for modern piping systems.
A dual plate wafer check valve is designed to prevent reverse flow in pipelines, ensuring that fluid moves in one direction only. Its spring-assisted dual plates close quickly when flow reverses, helping to protect pumps, pipelines, and downstream equipment from water hammer and pressure surges.
This valve is ideal for industrial and process applications, including chemical plants, power generation, and general fluid-handling systems. It is suitable for both horizontal and vertical installations, making it flexible for a variety of piping layouts.
The body is made from ASTM A216 WCB cast steel for excellent mechanical strength and durability, while the dual plates are manufactured from 304 stainless steel for superior corrosion resistance. Optional Viton seats provide tight sealing under a wide range of temperatures and pressures, ensuring long-lasting performance.
Class 150 refers to the pressure–temperature rating according to ASME B16.5 standards, suitable for most standard industrial applications. The wafer design allows the valve to fit compactly between flanges, reducing weight and space requirements while simplifying installation.
The valve is manufactured to API 594 standards for dual plate check valves and tested according to API 598. These certifications ensure reliable, high-quality operation and compliance with international industry standards for performance and safety.
Hard-to-find valves and equivalents
Overhaul, calibration & on-site testing
Meets Australian & international standards
