How Much Do You Know About The Classification Of Pneumatic Butterfly Valves
Classification of pneumatic butterfly valves: Sanitary Butterfly Valve, hard-sealed pneumatic butterfly valve, soft-sealed pneumatic butterfly valve, carbon steel pneumatic butterfly valve. Pneumatic butterfly valves are both important and cheap. They are roughly structured, small in size, light in weight and low in cost. The characteristics of pneumatic butterfly valves are more obvious.
The classification of pneumatic butterfly valves is simple: pneumatic flange butterfly valve, pneumatic flange butterfly valve. The product is made of rubber-sealed butterfly valve, carbon steel or stainless steel valve plate and valve stem. It is used to arrange the flow and cut-off efficiency of the medium in natural gas pipelines such as water supply and drainage, food, chemicals, thermal oil, electricity, light textiles, papermaking, etc. The pneumatic arrangement butterfly valve is a valve (valve plate) with a straight-through channel around a fixed axis. It consists of a piston-type double-effect, single-effect (spring return) pneumatic actuator and a butterfly valve. The type of roughly cut-off valve, equipped with electricity, gas valve positioners such as solenoid valves, atmospheric pressure filter pressure reducers, limit switches (valve position echo), can achieve proportional distribution of fluid media in process pipelines. Position cut-off control to achieve automatic control of parameters such as flow, pressure, temperature and liquid level of fluid media.
The pneumatic closed clamp butterfly valve has a novel structure. The structure of the valve body is a short isolation closed clamp structure, which is due to the small space of the full pipe pipeline. The external exposure is zero, and the internal exposure meets the national standards. Pneumatic lined butterfly valve, flange docking method, closed in the clamp, sealed with butyl rubber, EPDM, heat-resistant EPDM, natural rubber, chloroprene rubber, fluororubber, polytetrafluoroethylene, depending on the medium chemical properties have a more reasonable adoption. Pneumatic fluorine lined butterfly valve, anti-sinking fluorine lined butterfly valve is enclosed in a two-piece valve body, and the valve seat and valve body are integrated. When the valve is working, only the plastic valve seat and the butterfly plate lined with plastic lining will conflict with the medium. Accept all media except "molten alkali metals and elemental fluorine". The D71F46 valve stem is integrated with the butterfly plate (forging), and the surface is evenly covered with a layer of FEP. The inner surface of the valve body channel is smooth, the fluid resistance is low, the CV value is high, the fluidity is strong, the torque is moderate, and the four-stage sealing structure is adopted, and the SI rubber elastic gasket seat that is resistant to high temperature and aging is located outside the sealing surface. Achieve zero exposure to the medium. The pneumatic breathable butterfly valve is characterized by a small gap between the valve plate and the valve seat. The product is suitable for atmospheric pressure environment. The important features of the pneumatic telescopic butterfly valve are: novel and reasonable layout, special structure, light weight, convenient layout, fast opening and closing; the telescopic butterfly valve can not only arrange and close efficiency, but also supplement the thermal expansion and contraction effect caused by the temperature difference of the pipeline. It can also provide convenience for the placement, replacement and maintenance of the valve. The seal can be replaced, and the sealing performance is stable.
