ASTM A351 CF8M Wafer Check Valve, API 594, 3 IN, CL150, Lug

Product Name: ASTM A351 CF8M Wafer Check Valve
Design Standard: API 594
Body Material: ASTM A351 CF8M
Size: 3 Inch, DN80
Pressure: Class 150 LB, PN20
End Connection: Lug

We are a special manufacturer of wafer check valves, designed with a center vertical pin shaft. When the valve is open, the resultant force of the fluid acts on the center of the sealing face of the disc, while the point of action of the counter spring support force is on the center of the disc surface, ensuring that the root of the disc opens first. This design prevents wear on the sealing surface, which is common in traditional valves, and enhances the longevity of the valve seal. The wafer check valve operates automatically, opening and closing based on the flow of the medium, and is used to prevent the reverse flow of the medium.

Technical Specifications

» 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, Clamp, 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
» Butt Welded End Standards: ANSI B16.25
» Test and Inspection Standards: API 598, DIN 3230, JB/T 9092
» Temperature Range: -29°C to 595°C
» Medium: Water, gas, oil, etc.

Product Features

» Light and compact design
» Zero leakage sealing with soft-seated construction
» Non-slam design for smooth operation
» Bubble-tight shutoff for reliable sealing
» Discs open 85° to minimize pressure drop