Cast Steel Swing Check Valve, API 6D, A216 WCB, 4 IN, CL1500

Product Name: Cast Steel Swing Check Valve
Design Standard: API 6D
Body Material: ASTM A216 WCB
Size: 4 Inch, DN100
Pressure: Class 1500 LB, PN250
End Connection: RTJ Flanged

Universal Cast Steel Check Valves are designed and manufactured strictly to International Standards API 6D, BS 1868, ASME B16.34 or Equivalent, to reduce the flow resistance and pressure drop to the minimum possible extent. They are suitable to be mounted in a horizontal position only. The lapped and screwed seat ring ensures tight shutoff and long-duration service. The valve’s disc is perfectly designed, accurately machined, and guided for efficient automatic shutoff at zero pressure, with a feature of compact structure and low emission service. In its standard configuration, swing check valves have a bolted cover and a free-swinging clapper. The clapper is the closing member that responds to the prevailing flow conditions. Swing check valves are best fit for horizontal pipeline installation, but for heavier weights of discs, chattering issues can occur. Dampers or counterweights shall then be provided.

Technical Specifications

» Nominal Diameter: NPS 2–24 Inch (DN50–DN600)
» 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: BS 1868, API 6D, DIN 3352
» Face-to-Face (End-to-End): ANSI B16.10, EN 558 Series
» Flanged Connections: ASME B16.5, ASME B16.47, EN 1092 Series
» Butt Welded End: ANSI B16.25
» Test and Inspection Standards: API 598, ISO 5208, EN 12266-1
» Temperature Range: -29°C to 595°C
» Medium: Water, gas, oil, etc.

Product Features

» Cast steel swing check valve is used to prevent backflow in the line. Flow is in a straight line through the valve, resulting in minimal pressure drop. The disc swings into the open position as the media flows through the line. Back pressure in the line holds the disc in the closed position.
» Cast steel swing check valves may be installed in horizontal or vertical lines, but must be installed in proper relation to the media flow as indicated by the flow direction arrow marked on the body.
» Accessories such as bypasses, locking devices, counterweights, and many others are available to meet the customers’ requirements.