Specific Classification Of Pneumatic Butterfly Valves

Pneumatic flange butterfly valve, pneumatic flange butterfly valve, this product is composed of rubber seal butterfly valve, carbon steel or stainless steel valve plate and valve stem. It is suitable for regulating flow and intercepting media in water supply, drainage and gas pipelines with temperatures ≤80~120℃ such as food, chemical industry, petroleum, electric power, textile, papermaking, etc.
Pneumatic regulating butterfly valve is a valve (valve plate) that rotates around a fixed axis perpendicular to the channel. It is composed of a piston double-acting or single-acting (spring return type) pneumatic actuator and a butterfly valve. It is a rotating high-performance regulating valve. Or cut-off valves, equipped with electricity, pneumatic valve positioner or solenoid valve, air filter pressure reducer, limit switch (valve position return device), which can realize the proportional adjustment and two-position cut-off of the fluid medium in the process pipeline Control, thereby achieving automatic control of the flow, pressure, temperature, liquid level and other parameters of the fluid medium.
The pneumatic wafer-type butterfly valve has a novel structure. The valve body is constructed as a short-distance wafer structure to meet the narrow pipeline space. It has zero external leakage and internal leakage in line with national standards.
Pneumatic rubber-lined butterfly valve, the connection method is flange, clamping, the sealing lining is nitrile rubber, ethylene propylene rubber, heat-resistant ethylene propylene rubber, natural rubber, neoprene rubber, fluorine rubber, polytetrafluoroethylene, according to the medium chemistry Properties have more reasonable options.
Pneumatic fluorine-lined butterfly valve, anti-corrosion fluorine-lined butterfly valve adopts a two-piece valve body combination. The valve seat and valve body lining are integrated. When the valve is working, only the full plastic valve seat and plastic-lined butterfly plate are in contact with the medium. The product can withstand Corrosion by any medium "except molten alkali metals and elemental fluorine", in which the D71F46 valve stem and butterfly plate (forged) are integrated, and the surface is evenly coated with a layer of FEP. The inner surface of the valve body channel is smooth, the fluid resistance is small, the CV value is high, the flow capacity is strong, and the torque is moderate. It adopts a four-level sealing structure and is equipped with an elastic liner valve seat of temperature-resistant and anti-aging SI rubber outside the sealing surface, fully achieving Zero leakage of media.
Pneumatic ventilation butterfly valve features a thin gap between the valve plate and valve seat. This product is suitable for use in environments with poor air circulation.
The main features of the pneumatic telescopic butterfly valve are as follows: novel and reasonable design, unique structure, light weight, easy operation, rapid opening and closing; in addition to regulating and shutting off, and compensating for thermal expansion and contraction caused by the temperature difference in the pipeline, the telescopic butterfly valve also It can provide convenience for installation, replacement and maintenance of valves. The sealing part can be adjusted and replaced, and the sealing performance is reliable.