Butterfly Valve Article
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Quick Learn About Butterfly Valve

81 views Source: VALTEC China Valve Manufacture CO.,LTD

How Butterfly Valves Work

Butterfly valve is a kind of valve that uses a disc opening and closing member to reciprocate about 90° to open, close or adjust the flow of the medium. Butterfly valve not only has simple structure, small size, light weight, low material consumption, small installation size, small driving torque, simple and fast operation, but also has good flow regulation function and closing sealing characteristics. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays the role of cutting and throttling on the pipeline.

Functional use of butterfly valve

The butterfly valve is usually less than 90° from fully open to fully closed. The butterfly valve and the butterfly stem have no self-locking ability. In order to locate the butterfly plate, a worm gear reducer should be installed on the valve stem. The use of worm gear reducer can not only make the butterfly plate have self-locking ability, so that the butterfly plate can stop at any position, but also improve the operation performance of the valve. The characteristics of industrial-specific butterfly valve: high temperature resistance, high applicable pressure range, large valve nominal diameter, valve body made of carbon steel, valve plate sealing ring using metal ring instead of rubber ring. Large high temperature butterfly valve is made of steel plate welding, mainly used for flue air duct and gas pipeline of high temperature medium.

The butterfly valve is mainly composed of a valve body, a valve stem, a disc plate and a sealing ring. The valve body is cylindrical, with a short axial length and a built-in disc plate.

Buy butterfly valves and choose VALTECCN, a professional butterfly valve supplier and manufacturer. The company’s products cover petroleum, petrochemical, natural gas, city gas, power plants, papermaking, metallurgy and other industrial fields.

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