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What is the valve? What is it used for?

2019-11-05 09:56:46 3

A valve is a device that allows a pipe or a medium such as a liquid, a gas, a powder, or the like to flow or stop and control its flow. A valve is a very important device used in a fluid system to control the direction, pressure, and flow of a fluid.

Changzhou Changtai Trading Co., Ltd

The valve is a control component in the pipeline fluid delivery system, which is used to change the passage section and the flow direction of the medium, and has the functions of diversion, cutoff, throttling, check, split or overflow relief.

Changzhou Changtai Trading Co., Ltd

Valves for fluid control, from *simple shut-off valves to various valves used in extremely complex automatic control systems, the variety and specifications of the valve, the nominal diameter of the valve from a very small instrument valve up to a diameter of 10m Valves for industrial piping. It can be used to control various types of fluids such as water, steam, oil, gas, mud, various corrosive media, liquid metal and radioactive fluid. The working pressure of the valve can be from 0.13MPa to 1000MPa. The working temperature can be C-270 ° C ultra-low temperature to 1430 ° C high temperature.

Changzhou Changtai Trading Co., Ltd 

A variety of transmission methods can be used to control valves, such as manual, electric, pneumatic, turbo, electromagnetic, electromagnetic hydraulic, electrohydraulic, spur gear, bevel gear drive, etc.; can be used in pressure, temperature or other forms of sensing Under the action of the signal, according to the predetermined requirements, or simply open or close without relying on the sensing signal, the valve relies on the driving or automatic mechanism to make the opening and closing member lift, slide, swing or swing, thereby changing its The size of the runner area is such that its control function is achieved.


    Produced according to standard sizes! Adapt to special environments such as vacuum, high temperature and high pressure, ultra-low temperature, etc. Valve seals - suitable for flanges and pipeline junctions of pipelines, pump valves, pressure vessels, heat exchanger boilers, etc. It is an ideal choice for leak prevention in pipeline engineering, chemical, machinery, electric power, metallurgy and other enterprise sectors.


    Main products: stainless steel butt welding flange, high neck butt welding flange, carbon steel flange, metal wound gasket. (with inner and outer ring), graphite composite pad (filler ring, self-sealing), PTFE gasket (filler) , asbestos gasket, octagonal pad, lens pad, elliptical pad, toothed pad, rubber gasket, graphite packing, PTFE packing, carbon fiber packing, high and medium pressure asbestos rubber sheet, multi-layer butterfly valve sealing ring, rubber O type Circles, etc., special non-standard seal products. Can produce: DN10-DN6000mm. Nominal pressure: 0.6 ~ 63MPa Working temperature: -200 ~ 1200 °C.