ASTM A351 CD4MCU Check Valve, API 594, 10 Inch, 150 LB, Lug

Product Name: ASTM A351 CD4MCU Check Valve, Dual Plate
Type: Wafer Check Valve
Design Standard: API 594
Body Material: ASTM A351 CD4MCU
Size: 10 Inch, DN250
Pressure: Class 150 LB, PN20
End Connection: Lug

We are specialized manufacturer of wafer check valves. These valves feature a center vertical pin shaft design. When the valve opens, the resultant fluid force acts on the center of the disc’s sealing face, while the counter spring support force is applied at the center of the disc surface. This design ensures that the root of the disc opens first, preventing excessive wear on the sealing surface, which is a common issue in conventional check valves. As a result, the valve seal’s durability is significantly enhanced.
The wafer check valve operates automatically, opening and closing based on the medium’s flow. It is primarily used to prevent reverse flow, ensuring efficient and reliable pipeline performance.

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

» Lightweight and Compact Design – Easy to install and space-saving.
» Zero Leakage Sealing – Soft-seated design ensures a tight, leak-free seal.
» Non-Slam Operation – Prevents water hammer and ensures smooth performance.
» Bubble-Tight Shutoff – Provides reliable sealing to prevent leakage.
» Optimized Flow Efficiency – Discs open up to 85° to minimize pressure drop.