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Analysis of classification advantages of all-welded butterfly valve principle
Dec 24, 2018

We have a strong advantage in the production of butterfly valves, mainly in the development and production of electric butterfly valves, pneumatic butterfly valves, welding butterfly valves, and desulfurization butterfly valves. The butterfly valve is rotated by a circular disc on the axis of the valve body to control the valve. The opening and closing and adjustment of the butterfly valve only need to be carried out 0 to 90 degrees earlier. The welding butterfly valve has no self-locking ability, so that the butterfly valve is fixed, it is necessary to install a reducer on the valve stem to control the valve plate to achieve the control medium. The effect, the use of the reducer can steal the self-locking ability notification also makes the valve stable in the adjustment and control, the valve stem can be stopped at any position to increase the operability, the butterfly valve currently used in industry can work at high temperature The valve has a large diameter and is made of carbon steel, cast steel and stainless steel. It is welded in the form of a link. The sealing ring is made of metal. The welded butterfly valve is a large valve. It is used under high temperature medium. Come on the air duct or gas pipe.

The welding butterfly valve products are composed of main components such as valve body, butterfly plate, sealing ring and transmission mechanism. The structure adopts the three-dimensional eccentric principle design, and the elastic sealing and the hard and soft multi-layer sealing are compatible with the new processing technology, so that the butterfly valve reduces its torque force during the operation, and achieves the functions of labor saving and energy saving. Thereby ensuring the overall corrosion resistance. High temperature resistance and reliability against damage.

The main advantages of welding butterfly valves:

1. The seal is reliable and can achieve a gas seal without leakage;

2. The flow characteristics tend to be optimal for linear adjustment;

3. The structure is unique, the type is small and light, the operation is flexible, labor-saving and convenient;

4. Wide range of applications. Such as: can be used for water, steam, oil, air, gas and other media.

5. The principle of three eccentricity is adopted to make the sealing surface approximate zero damage and prolong the service life of the valve;

6. Applicable to different temperature and pressure level below 6.4MPa, corrosion resistance and other media pipelines.

Characteristic analysis: It is convenient and quick to open and close, labor saving, small fluid resistance, and can be operated frequently. The structure is simple, small in size and light in weight. The mud can be transported and the liquid accumulated at the mouth of the pipe is minimal. A good seal can be achieved at low pressure. The adjustment performance is good.

The butterfly valve provided by the company mainly adopts the domestic advanced sealing surface hardening technology. When the valve is opened and closed, there is no friction between the sealing surface of the butterfly plate and the valve seat, and the valve has a long service life and the traditional valve. In comparison, the effect of environmental protection and energy conservation is also very good.

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