The characteristics of flange connection and the introduction of performance classification

　　Flange connection (wire connection) flange and welding flange. Low voltage and small diameter is generally wire connecting flange, high pressure and low pressure large diameter are generally used to weld the flange, the thickness of different pressure flange plate and the connecting bolt diameter and the number is different. According to the pressure of different grades and flange gasket also have different materials, from the low-pressure asbestos pad, high pressure asbestos pad and tetrafluoroethane pad to the metal pads.

　　Flange connection is the main feature of the demolition is more convenient, the strength is very high, sealing performance is very good. When the requirements of the two flange mounting flange sealing surface can not be damaged, keep parallel flanges, but to clean up. Flanges used in the gasket, according to the design requirements. Flange connection is an important connection way of pipeline construction. Flange connection is very convenient to use, can withstand relatively large pressure.