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Flange hard seal butterfly valve

The flange hard seal butterfly valve, also known as the flap valve, is a simple regulating valve and can also be used for switching control of low pressure pipeline media. The hard-sealed butterfly valve mainly acts as a cut-off and throttling on the pipe.

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The flange hard seal butterfly valve, also known as the flap valve, is a simple regulating valve and can also be used for switching control of low pressure pipeline media. The hard-sealed butterfly valve mainly acts as a cut-off and throttling on the pipe. The butterfly valve opening and closing member is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjusting. The hard-sealed butterfly valve is suitable for conveying and corroding media of various corrosive and non-corrosive fluid media in furnaces, gas, steam, natural gas, city gas, hot and cold air, chemical smelting engineering and power generation environmental protection system. The flow. Hard seal butterfly valves can be divided into manual hard seal butterfly valves, pneumatic hard seal butterfly valves, and electric hard seal butterfly valves.

 

  The flange hard sealing butterfly valve is an eccentric metal sealing structure, the sealing form is metal-to-metal sealing, the metal sealing ring can be changed to metal sealing, and the stainless steel plate and graphite are complex.

 

  Ply sealing ring for metal sealing. The driving form of hard sealing butterfly valve is in addition to electric: manual, worm gear transmission, pneumatic and so on. This type of valve should generally be installed horizontally in the pipeline.

 

  The flange of the flanged hard-seal butterfly valve is mounted in the diameter direction of the pipe. In the cylindrical passage of the butterfly valve body, the disc-shaped disc rotates around the axis, and the rotation angle is between 0° and 90°. When rotated to 90°, the valve is fully open.