ASTM A216 WCB Axial Check Valve, API 6D, 24 Inch, 300 LB, RF

Product Name: ASTM A216 WCB Axial Flow Check Valve
Design Standard: API 6D, ASME B16.34
Body Material: ASTM A216 WCB
Size: 24 Inch, DN600
Pressure: Class 300 LB, PN50
End Connection: RF Flanged

In addition to the general function of a check valve, the axial flow check valve offers the advantages of reduced noise and lower impact, thanks to the use of a spring. With its axial flow design, the valve features low fluid resistance, high flow capacity, and compact dimensions. This makes it an ideal choice for installation at the outlet of pumps in pipeline systems transporting oil and gas. It is commonly used in pipelines transporting oil, gas, water, and other fluids, where non-return functionality is required.

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
» End Connections: Flanged (FF, RF, RTJ) to international standards
» Design and Manufacture Standards: GB/T 21387, API 6D, ASME B16.34
» Face-to-Face (End-to-End): GB/T 12221, ANSI B16.10, API 6D
» Flanged Connection Standards: GB/T 9113, ASME B16.5
» Test and Inspection Standards: GB/T 26480, API 598
» Temperature Range: -29°C to 595°C
» Medium: Water, gas, oil, etc.

Product Features

» One-Piece Body: Lightweight, strong, and easy to maintain.
» Spring Thrust Force: Keeps the valve closed even without medium pressure.
» Sealing Carrier: Allows installation in any direction and ensures perfect seat contact.
» Axial Flow Structure: Minimizes pressure loss, ensures stable flow, and prevents cavitation erosion. The disc returns to the sealing position smoothly, avoiding direct medium impact and reducing noise.
» Special Disc Carrier and Pin: Prevents valve sticking, ensures even opening and closing, and maintains a lasting seal.
» Closed Position Design: The spring force is slightly greater than the combined force of disc gravity and friction, ensuring reliable sealing under low pressure regardless of installation position. This protects pump operation.