Forged Pressure Seal Piston Check Valve
KOSEN Forged Pressure Seal Piston Check Valves is a valve which is automatically opened and closed by the flow of the medium itself. It is used to prevent the reverse flow of the medium. It is also called the reverse check valve, the one-way valve, the countercurrent valve and the back pressure valve. The check valve is an automatic valve. Its main function is to prevent the backflow of the medium, prevent the reversing of the pump and drive motor, and the discharge of the container medium. The check valve can also be used to supply pipelines where the pressure may exceed the system pressure. The valve disc of the high pressure check valve is disc shaped and rotating around the seat channel. Because the valve channel is streamlined, the flow resistance is smaller than the butterfly check valve. It is suitable for large aperture with low flow velocity and unchangeable flow, but it is not suitable for pulsating flow and its sealing performance is not up to rise.
Product Description
KOSEN Forged Pressure Seal Piston Check Valves is a valve which is automatically opened and closed by the flow of the medium itself. It is used to prevent the reverse flow of the medium. It is also called the reverse check valve, the one-way valve, the countercurrent valve and the back pressure valve. The check valve is an automatic valve. Its main function is to prevent the backflow of the medium, prevent the reversing of the pump and drive motor, and the discharge of the container medium. The check valve can also be used to supply pipelines where the pressure may exceed the system pressure. The valve disc of the high pressure check valve is disc shaped and rotating around the seat channel. Because the valve channel is streamlined, the flow resistance is smaller than the butterfly check valve. It is suitable for large aperture with low flow velocity and unchangeable flow, but it is not suitable for pulsating flow and its sealing performance is not up to rise.
Technical Specification
Normal SizeRange:
1/2"- 2"
Normal Pressure Rating: PN100~PN420, CLASS600~2500
Material: A105,LF2,F11,F22,F304,F304L,F316,F316L
TemperatureRange: -29~425Degree C
Standards compliance
Design and Manufacture: API602
Face to face(end to end): ASME B16.10
Flanged connection: ASME B16.5
Butt welded end: ASME B16.25
Socket-Welding Ends: ASME B16.11
Screwed Ends: ASME B1.20.1
Test and inspection: API598
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Forged Swing Check Valve
KOSEN Forged Swing Check Valves, also known as one-way valve, non-return valve and so on, is an automatic valve opening and closing itself by the force of flowing medium. And Forged check valve is mainly used for preventing the backflow of medium, the reversal of pump & its motor and the discharging of container. By different structure, it could be divided into forged swing type check valve & forged lift type check valve; If by different connection, it could be flanged forged check valve, socket welded forged check valve and etc.
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Flanged End Check Valve
KOSEN Flanged End 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 Flanged End 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 .
Butterfly Type Check Valve
KOSEN Butterfly Type Check Valves is a double offset , triple offset butterfly type check valve. It is equipped with a buffer to slow down the closing speed to make partial medium enter the system in order to greatly eliminate the backflow slamming and the destructive pressure surge when pump stops working. It is mainly mounted at outlet side of the pump station in industrial water recycling supply system, urban water supply system, high-rise buildings and modern hotels. The model is designed to have non-vibration non-slam performance in consideration of special application environment. It has good sealing, smooth operation, long service life, energy saving advantage to make the living environment quiet and comfortable.
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Flanged End Pressure Seal Check Valve
KOSEN Flanged End Pressure Seal 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 Flanged End Pressure Seal 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 .