Cast steel Check Valve
KOSEN Cast steel Swing Check Valves is used to prevent back flow 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 . KOSEN 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 .
Normal Size Range: 2"-24"
Normal Pressure Rating: PN10~PN420, CLASS150~2500
Temperature Range: -29~425Degree C
Design and Manufacture: ANSI B16.34, API6D, BS1868
Face to face(end to end): ANSI B16.10, API6D
Flanged connection: 2"~24" to ANSI B16.5
22", 26"~36 to MSS-SP-44 to API605 on request
Butt welded end: ANSI B16.25
Test and inspection: API598, API6D