ASTM A352 LCB Axial Check Valve, API 6D, 6 Inch, CL150, RF

Product Name: ASTM A352 LCB Axial Flow Check Valve
Design Standard: API 6D
Body Material: ASTM A352 LCB
Size: 6 Inch, DN150
Pressure: Class 150 LB, PN20
End Connection: RF Flanged

The Axial Flow Check Valve is designed to prevent backflow in pipeline systems, offering the advantages of low noise and reduced impact due to the use of a spring. With its axial flow structure, it minimizes fluid resistance while providing great flow capacity, making it an efficient choice for pump outlets in oil, gas, and water pipelines. Its compact size ensures easy installation in confined spaces, and it is ideal for non-return applications in systems transporting a variety of fluids.

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, CF3, CF3M, CF8C
» 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: GB/T 26480, API 598
» End Connections: Flanged (FF, RF, RTJ) to international standards
» Temperature Range: -29°C to 595°C
» Medium: Water, gas, oil, etc.

Product Features

» Durable One-Piece Body: Compact, lightweight, and strong design for easy maintenance and enhanced reliability.
» Spring-Activated Thrust Force: Ensures the valve stays in the closed position, even without the medium's force.
» Versatile Sealing Carrier: Allows installation in any direction, with the disc perfectly sealing against the seat for reliable performance.
» Efficient Axial Flow Structure: Reduces pressure loss, ensures stable medium flow, and prevents cavitation erosion. The disc returns to the sealing position through spring force and sub-pressure from medium flow, avoiding direct impact from the medium on the disc's back.
» Low-Noise Operation: The axial flow design minimizes noise during operation, providing a quiet performance.
» Anti-Sticking Disc and Pin: Special surface treatment and design prevent sticking and ensure smooth opening and closing, even under gravity, preventing misalignment of the disc.
» Reliable Sealing Under Low Pressure: The spring's thrust force exceeds the combined effect of the disc's gravity and the friction with the sealing ring, ensuring the disc returns to its sealing position even at low pressure, regardless of installation orientation, protecting the pump operation.