ASTM A105N Dual Plate Check Valve, API 594, 24 Inch, 900 LB

Product Name: ASTM A105N Dual Plate Check Valve
Type: Wafer Check Valve
Design Standard: API 594
Body Material: ASTM A105N
Size: 24 Inch, DN600
Pressure: Class 900 LB, PN150
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 center vertical pin shaft that ensures precise alignment. When the valve is open, the fluid's resultant force acts directly on the center of the disc's sealing face. Simultaneously, the counter spring support force is applied at the center of the disc surface. This unique arrangement allows the disc to open from its root first, reducing wear on the sealing surface compared to conventional valves. As a result, the durability of the valve seal is significantly enhanced. The wafer check valve operates automatically, opening and closing based on the flow of the medium, and is specifically designed to prevent reverse flow.

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

Product Features

» Light and Compact
» Zero Leakage Sealing Design with Soft Seated
» Non-Slam Design
» Bubble Tight Closure
» Discs open 85° to ensure a low pressure drop