Pneumatic discharge valve

The structure principle of pneumatic discharge valve is composed of valve body, valve valve, valve stem, positioning screw, seal ring, gas travel mechanism, or electrical installation. Its principle is that the valve stem pushes the valve flap up and down, so as to achieve the purpose of opening and closing. When the handwheel is turned, the stem is upwards, the valve is closed, the downward expansion is reversed when the handwheel is reversed, the stem is lowered, and the valve is closed.
The difference between the upper spreading discharge valve and the lower spreading discharge valve:
The discharge valve is mainly used for the bottom discharge material of the storage tank, the reaction kettle and other containers. The valve is connected to the bottom by the flange or butt welding and the equipment is located at the bottom, eliminating the residual phenomenon of the process medium usually in the container exit. According to the actual situation, it can be divided into three kinds of structural forms: upper spreading, downward spreading and plunger type; upper spreading type is used for reactor discharge with agitator (frame type anchorage); and the lower spreading type and plunger type are used for the reaction kettle of the frame type anchorage agitator. The sealing surface is resistant to erosion and corrosion resistant material, and the special treatment is carried out to make the surface hardness of HRC48 ~ 52. It has the function of high abrasion resistance and corrosion resistance, which ensures the sealing reliability of the valve. Widely used in chemical, petroleum, metallurgy, pharmaceutical, dyestuff, food processing and other industries.

The discharge valve of the pneumatic discharge valve is mainly applicable to the reactor, the bottom of the tank and other containers, and the bottom flange of the valve at the bottom of the valve, which is welded to the bottom of the reactor or the tank and other containers, thus eliminating the residual phenomenon of the process medium in the container outlet. . Discharge valve according to the actual needs, the bottom of the valve body is designed to be flat bottomed, the valve body is V type, and provides two ways of lifting and lowering valve disc. The inner cavity of the valve body is equipped with a washable and corrosion-resistant sealing ring. In the moment of opening the valve, the body can protect the body from the medium scoured and corroded, and the seal ring is treated with special treatment to make the surface hardness to HRC56-62, with high abrasion resistance and corrosion resistance. The disc seal is covered with cemented carbide on the front cover as required, and the sealing pair is sealed by line, which ensures the reliability of the seal and prevents scarring. At the same time, the short stroke valve was designed. It is widely used in chemical, petroleum, metallurgy, specialty, dyestuff, food processing and other industries.

Pneumatic discharge valve, stainless steel pneumatic discharge valve, upward pneumatic discharge valve, and low lift pneumatic discharge valve.

1. The operation of this valve is simple and convenient, and the movement is flexible and reliable.

2, the valve disc device is simple in maintenance, reasonable in sealing structure, convenient and practical in sealing ring replacement.

3, this valve is widely used in petroleum, metallurgy, chemical industry, paper making industry (chemical fluid, coal slurry, ore slurry, etc.).

4, its characteristic is precipitates in the reactor, the storage tank or the pipeline chemical liquid or the slurry obtains the smooth circulation.
This series of products has been widely adopted by large chemical companies, with good performance, durability and good customer response.
Three. Application specification:
1. design and manufacture standard according to GB/T12235-2007
2. the standard of structure length according to enterprise standard
3. flange connections press JB/T79-94, GB/T9113 HG20592-2009, etc.
4. test and test by GB/T13927-2008