Axial Flow Non-slam Check Valve, ASTM A352 LCC, 6 IN, 300 LB

Product Name: Axial Flow Non-slam Check Valve
Design Standard: API 6D, ASME B16.34
Body Material: ASTM A352 LCC
Size: 6 Inch, DN150
Pressure: Class 300 LB, PN50
End Connection: RF

The axial flow check valve offers all the benefits of a standard check valve, with the added advantages of reduced noise and lower impact, thanks to its spring design. Its axial flow structure results in low fluid resistance, high flow capacity, and a compact size, making it an excellent choice for pump outlets in pipeline systems transporting oil, gas, and water. This valve is ideal for preventing backflow in various fluid transport systems.

Technical Specifications

» Nominal Diameter: NPS 2–36 Inch (DN50–DN900)
» Design Pressure: Class 150–2500 LB (PN10–PN420)
» Materials: ASTM A216 WCB, WCC, A217 WC6, WC9, C5, C12A, A352 LCB, LCC, A351 CF8, CF8M, CF3M, CF3, CF8C
» End Connections: Flanged (FF, RF, RTJ) to international standards
» Temperature Range: -29°C to 595°C
» Medium: Water, Gas, Oil, etc.
» Design and Manufacture: GB/T 21387, API 6D, ASME B16.34
» Face to Face (End to End): GB/T 12221, ANSI B16.10, API 6D
» Flanged Connection: GB/T 9113, ASME B16.5
» Test and Inspection: G/T 26480, API 598

Product Features

» Durable One-Piece Body: Lightweight, strong, and easy to maintain.
» Spring-Driven Thrust: The spring ensures the valve stays in the closed position even without medium flow.
» Versatile Sealing: The high-quality sealing carrier allows installation in any direction, ensuring the disc seals perfectly with the seat.
» Axial Flow Design: The axial flow structure minimizes pressure loss, ensures stable medium flow, and prevents cavitation erosion. The disc returns to the sealing position with the spring force and the medium's sub-pressure, preventing direct impact on the disc's backside. This design results in low noise.
» Reliable Disc Movement: Special design and surface treatment of the disc carrier and pin prevent valve sticking. The disc opens and closes evenly, avoiding the common issue of the disc not aligning properly with the sealing position due to gravity.
» Effective Sealing: In the closed position, the spring's thrust force is slightly stronger than the combined effect of the disc's gravity and the friction between the disc and sealing ring, allowing the disc to return to the sealing position under low pressure. This ensures protection for pump operation, regardless of installation position.