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A butterfly valve is a commonly used industrial valve


Release time:

Dec 14,2023

It usually consists of valve body, valve cover, valve stem, valve spool, valve seat, sealing device and other components, with simple structure, reliable sealing, flexible operation and other characteristics.

A butt valve is a commonly used industrial valve for connecting and controlling the flow of fluids in pipelines. It usually consists of valve body, valve cover, valve stem, valve spool, valve seat, sealing device and other components, with simple structure, reliable sealing, flexible operation and other characteristics. Docking valves are widely used in petroleum, chemical, metallurgy, electric power, water treatment and other industries.

First of all, the body and bonnet of the butt valve are usually made of cast iron, carbon steel, stainless steel and other materials to ensure the strength and sealing performance of the valve body. The valve body is usually equipped with two flange connection ports for inlet and outlet to connect with pipelines. The bonnet is equipped with a stem sealing device to prevent fluid leakage.

Secondly, the stem of the butt valve is the key component connecting the bonnet and the valve seat, and the opening and closing of the spool is controlled by the up and down movement of the stem. The valve stem is usually made of stainless steel, which has good corrosion resistance and strength. A handwheel or gear drive is provided on the stem to facilitate the operator's control of the spool.

The spool is the key part of the butt valve, which is usually made of stainless steel or cast copper, with good corrosion resistance and sealing performance. The spool is moved up and down by the valve stem to control the opening and closing between the valve body and the valve seat, thus controlling the flow of fluid. The seat is a sealing device installed inside the valve body, usually made of wear-resistant materials to ensure the sealing performance of the valve.

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