ASTM A216 WCB Wafer Check Valve, API 594, 20 IN, Dual Plate

The ASTM A216 WCB Wafer Check Valve Plant offers high-quality dual plate check valves designed to meet API 594 standards. These valves feature a cast carbon steel body, ensuring durability and strength. With a 20-inch (DN500) size and rated for Class 900 LB and PN150 pressure, they are equipped with double flanged ends for secure and reliable installation. The dual plate design provides efficient backflow prevention, making these valves ideal for various industrial applications.

Product Name: ASTM A216 WCB Wafer Check Valve, Dual Plate
Type: Wafer Check Valve
Design Standard: API 594
Body Material: ASTM A216 WCB, Cast Carbon Steel
Size: 20 Inch, DN500
Pressure: Class 900 LB, PN150
Ends: Double Flanged
Temperature Range: -29°C to 595°C
Medium: Water, Gas, Oil, etc.

We are a specialized manufacturer of wafer check valves. Our design features a central vertical pin shaft. When the valve is open, the fluid force acts directly on the center of the sealing face of the disc. Meanwhile, the counteracting spring support force is applied at the center of the disc surface, ensuring that the disc opens from its root first. This innovative design prevents wear on the sealing surface that is common in conventional valves, thereby enhancing the durability of the valve seal. The wafer check valve operates automatically, opening and closing based on the flow of the medium itself, and is specifically designed to prevent backflow of the medium.

Technical Specification

» Nominal Diameter: NPS 2–60 Inch (DN50–DN1500)
» Design Pressure: Class 150–2500 (PN10–PN420)
» Materials: ASTM A216 WCB, WCC, A217 WC6, WC9, C5, C12A, A352 LCB, LCC, A351 CF8, CF8M, CF3M, CF8C
» End Connections: wafer, Lug, Flanged.
» Design and Manufacture Standards: API 594, API 6D, JB/T 8937
» Face-to-Face (End-to-End): API 594, API 6D, JB/T 8937, DIN 3202
» Flanged Connection Standards: ANSI B16.5, DIN 2543–48, JB/T 9112–24
» Test and Inspection Standards: API 598, DIN 3230, JB/T 9092

Structural Diagram

Product Features

» Light and Compact Design: Our wafer check valve is engineered to be lightweight and compact, making it easy to install and integrate into various systems without occupying excessive space.
» Zero Leakage Sealing Design: The valve features a soft-seated design that ensures zero leakage, providing a reliable seal that maintains system integrity and prevents fluid loss.
» Non-Slam Design: Our innovative non-slam design eliminates the noise and potential damage associated with sudden valve closure, ensuring smooth and quiet operation.
» Bubble Tight Closure: The valve achieves bubble-tight closure, ensuring a precise and reliable seal that prevents even the smallest amount of backflow.
» Wide Disc Opening: The discs open to an angle of 85°, which ensures a low pressure drop across the valve, optimizing system efficiency and reducing energy consumption.