ASTM A352 LCC Check Valve, API 6D, ASME B16.34, 6 IN, 300 LB

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

The Axial Flow Check Valve offers superior performance with reduced noise and lower impact, thanks to the use of a spring. Its axial flow design minimizes fluid resistance, enhances flow capacity, and reduces the outer dimension, making it an ideal choice for pump outlets in pipeline systems, particularly for transporting oil and gas. It is also well-suited for applications involving water and other fluids, meeting non-return requirements in various industries.

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

» One-Piece Body: The valve features a compact, lightweight, and robust one-piece body, providing excellent strength and ease of maintenance.
» Spring-Activated Closing: The thrust force of the spring ensures the valve remains in the closed position, even without the force of the medium.
» Versatile Sealing Carrier: The valve can be installed in any orientation, with the disc perfectly sealing against the seat to prevent leakage.
» Axial Flow Design: The axial flow structure minimizes pressure loss, supports stable medium flow, and prevents cavitation erosion. The disc returns to the sealing position with the combined force of the spring and sub-pressure generated by the      flowing medium. This prevents direct impact from the medium on the back of the disc.
» Low Noise Operation: The design ensures low noise during operation, making it ideal for noise-sensitive environments.
» Sticking Prevention: The unique structure and surface treatment of the disc carrier and pin prevent valve sticking. The disc opens and closes evenly, avoiding common issues like off-center sealing due to gravity, ensuring a lasting and reliable           seal.
» Accurate Spring Design: The spring's thrust force slightly exceeds the combined forces of the disc's gravity and friction with the sealing ring, ensuring the disc returns to the sealing position under low pressure and regardless of installation              orientation, thus safeguarding pump operation.