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Valve connection type - flange connection

This is the most used form of connection in the valve. According to the shape of the joint surface can be divided into the following categories:

1. Smooth type: used for valves with low pressure. More convenient processing

2, bump type: high working pressure, can use the hard washer

3, gutter type: available plastic deformation of the gasket, used in a wide range of corrosive media, better sealing effect.

4, trapezoidal groove type: with an oval metal ring as a gasket, used in the working pressure of ≥ 64 kg / cm 2 valve, or high temperature valve.

5, Lens type: The gasket is a lens shape, made of metal. For high pressure valves with working pressure ≥ 100 kg/cm2, or high temperature valves.

6, O-ring type: This is a relatively new form of flange connection, it is developed with the emergence of a variety of rubber O-rings, it is more reliable than the general flat gasket sealing effect.

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