How to judge the common specifications and models of pneumatic butterfly valves What is the meaning of "three eccentric"? Shanghai Dongfeng Pump Valve Factory - 上海花千坊_上海龙凤花坛_夜上海最新论坛

How to judge the common specifications and models of pneumatic butterfly valves What is the meaning of three eccentricity

How to judge the common specifications and models of pneumatic butterfly valves? What is the meaning of three eccentricity?

Understand why trapezoidal valve sealing ring is selected for loose sleeve part of pneumatic ball valve? Pneumatic ball valve is the equipment used to connect pumps, valves and pipes. It is connected by bolts to form a whole, and then a certain displacement is generated, which is also convenient for our installation and maintenance. The displacement of pneumatic ball valve is generated by bolt connection. The pneumatic ball valve adopts the principle of compression elastic deformation of the valve inside to make it simple and convenient in the installation of pipeline engineering, convenient for valve installation, and able to bear the axial tension of the pipeline. The metal and sealing ring of pneumatic ball valve shall be selected in strict accordance with the service performance and user requirements.
The exterior of the material is coated with high-strength anti-corrosion paint, and the connecting bolts of each part are made of high-strength carbon steel or stainless steel. Because there is a certain gap between the body and the expansion tube, it has a certain axial and radial displacement. It can effectively compensate and relieve the thrust of pipeline and blind plate in the pipeline, and also facilitate the installation, maintenance and replacement of pumps and valves. It is actually the most ideal supporting product in the pipeline installation and operation industry. The pneumatic ball valve produced by Gongyi Hengchang Pipeline Equipment Co., Ltd. is made of metal casting or welding. Trapezoidal valve sealing ring is selected for the loose sleeve part. Under the action of the gland and bolt, the principle of valve compression elastic deformation is used to force the sealing ring to deform between the outer wall of the expansion pipe of the pneumatic ball valve body for static sealing.

 Pneumatic butterfly valve

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