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Pneumatic Butterfly Valve,Butterfly Valve,Control Unit,Valves,Nitrogen Recovery System
Pneumatic clamped butterfly valve, as its name suggests, is clamped between the flanges at both ends of the pipeline, and then fixed with a set of bolts through the bolt holes. Pneumatic clamped butterfly valve has a small volume and relatively thin thickness, which is especially suitable for use in occasions where the distance between the two ends of the pipeline is short or the space is limited. Pneumatic Wafer Butterfly Valve is divided into soft seal and metal seal according to the sealing structure, among which the soft seal butterfly valve is of centerline structure, which has the advantages of anti-corrosion, zero leakage, etc., and the hard seal butterfly valve is of triple eccentric type, which has the advantages of less abrasion and long service life.
Products
Valves with metal seals generally have a longer life than those with elastic seals, but it is difficult to achieve complete sealing. Metal seals can adapt to higher operating temperatures, while elastic seals have the defect of being limited by temperature.
If a butterfly valve is required for use as a flow control, the main thing is to select the correct size and type of valve. The structural principle of butterfly valve is especially suitable for making large diameter valves. Butterfly valves are widely used not only in general industries such as oil, gas, chemical, water treatment, but also in cooling water systems of thermal power plants.
Commonly used butterfly valves have two kinds of butterfly valves: butt-clamp butterfly valves and flanged butterfly valves. Clamped butterfly valves are connected between two pipeline flanges with double-headed bolts, and flanged butterfly valves are with flanges on the valves, and the flanges on both ends of the valves are connected to the pipeline flanges with bolts.
Uses
Used in sulfuric acid industry gas pipeline: furnace blower inlet and outlet, relay fan inlet and outlet, electric desorption tandem and interconnecting valves, S02 main blower inlet and outlet, converter regulation, preheater inlet and outlet, etc. to regulate and cut off the volume of gas used.
Used in sulfur acid system in the incineration, conversion, dry suction section, is the first choice of sulfur acid plant with the valve brand, by the majority of users that: good sealing performance, light operation, vice corrosion, high temperature resistance, easy to operate, flexible, safe and reliable butterfly valves, has been a large number of popularization and use.
Also widely used in: chemical, petrochemical, smelting, pharmaceutical, food and other industries in SO2, steam, air, gas, ammonia, CO2 gas, oil, water, brine, lye, seawater, nitric acid, hydrochloric acid, sulfuric acid, phosphoric acid, and other media on the pipeline as a regulator and interceptor.
Structural characteristics
①The unique design of three-way eccentricity makes no friction transmission between sealing surfaces, which prolongs the service life of the valve.
②Elastic sealing is generated by torque.
③Ingenious wedge design makes the valve have the automatic sealing function of the tighter the valve is closed, with compensatory and zero leakage between sealing surfaces.
④Small size, light weight, light operation, easy to install.
⑤Pneumatic, electric, hydraulic, manual devices can be configured according to user requirements to meet the needs of remote control and program control.
⑥ Replacement of parts material can be applied to a variety of media, and can be lined with anti-corrosion (lined with F46, GXPP, PO, etc.).
⑦ Continuous structure diversification: butt-clamp, flange, butt-welding.