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API 6D Swing Check Valve
Contact: Email: zipopvf@163.com Wechat: zipo2019; QQ: 2191417589; Mobile: 18081659672
Please inform us of the accurate nominal size, pressure class, medium, temperature, material, actuator and other parameters, before consulting or purchasing the product. Thanks!
Swing check valve also known as one-way valve or check valve, its role is to prevent the medium flow back in the pipeline. The opening and closing parts open or close automatically by the medium flow and force to prevent the reverse flow of medium. Check valve is an automatic valve, which is mainly used in the pipeline with one-way flow of medium. It only allows the medium to flow in one direction to prevent accidents. This kind of valve should be installed horizontally in the pipeline.
The disc of the swing check valve is disc-shaped and rotates around the rotating shaft of the valve seat channel. Because the inner channel of the valve is streamlined, the flow resistance is smaller than that of the lifting check valve. It is suitable for low velocity and large size occasions with irregular flow, but it is not suitable for pulsating flow, and its sealing performance is inferior to that of the lifting check valve. Swing check valve is divided into single disc type, double disc type and multi disc type. These three types are mainly divided according to the valve diameter, and the purpose is to prevent the medium from stopping flow or reverse flow and weakening hydraulic impact.
Swing check valve adopts built-in rocker arm swing structure. All the opening and closing parts of the valve are installed inside the valve body. Except for the sealing gasket and sealing ring used in the middle flange, there is no external leakage point on the whole, so as to eliminate the possibility of valve leakage. The connection of rocker arm and disc of swing check valve adopts spherical connection structure, which makes the valve disc have certain degree of freedom in 360 degree range, and has appropriate micro position compensation.
Swing check valve is suitable for cleaning medium, not suitable for medium containing solid particles and high viscosity.
Nominal Pressure: PN1.0MPa ~ 42.0MPa, Class150-2500;
Nominal Diameter: DN 15 ~ 1200mm, NPS1 / 2 ~ 48;
Working Temperature: - 196 ℃ to 540 ℃
Body Material: WCB, CF8 (M), CF3 (M).
Common Models: H44H-16C H44H-40C H44H-64C H44H-100C； H44Y-16C H44Y-40C H44Y-64C H44Y-100C； H44W-16P H44Y-40P H44Y-64P H44Y-100P
Swing check valve can be used in water, steam, oil, acid, strong oxidizing medium and urea. It is mainly used in petroleum, chemical, pharmaceutical, chemical fertilizer, electric power and other pipelines.
Manufacturer: ZIPO VALVE & PUMP CO., LTD
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