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The double offset butterfly valve is gradually improved by the ordinary butterfly valve to adapt to different working conditions. The earliest butterfly valve structure is mainly the center door panel structure, similar to the adjustment butterfly valve, that is, the axis of the valve stem and the butterfly plate coincides with the center of the valve body pipe.



Problems encountered when using soft seal butterfly valve
The butterfly plate of the soft seal butterfly valve is installed in the diameter direction of the pipe. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°.



Double offset butterfly valve advantages
Further improved molding on the basis of the single offset butterfly valve is currently the most widely used double offset butterfly valve. The structural feature is that the stem axis is offset from the center of the disc and from the center of the body.



Centerline butterfly valve installation
As a component used to realize the on-off and flow control of pipeline systems, the center line butterfly valve has been widely used in many fields such as petroleum, chemical, metallurgy, and hydro power.



Butterfly valve design
Butterfly valve is a valve that uses a circular disc as a shutter to open, close, and adjust the fluid passage as the stem rotates. The butterfly valve's disc is mounted in the diameter direction of the pipe.



Butterfly valve maintenance
The rubber elastomer in the butterfly valve may cause tearing, abrasion, aging, perforation or even falling off during continuous use. The traditional thermal vulcanization process is difficult to adapt to the needs of on-site repair valves.



Butterfly valve installation
The butterfly valve is also widely used. If it is used to control the flow, it needs to choose different types and the size of the valve body. Butterfly valves are widely used not only in general industries such as petroleum, gas, chemical, and water treatment, but also in cooling water systems.



Advantage of double offset butterfly valve
The double offset butterfly valve is further improved on the basis of a single eccentric butterfly valve. The structural feature is that the stem axis is eccentric from the center of the disc and from the center of the body.



Specification of Trunnion Mounted Ball Valves
Trunnion mounted ball valve is a new generation of high performance ball valve. It is suitable for long-distance pipelines and general industrial pipelines. Its strength, safety and harsh environment are specially designed for various corrosive and non-corrosive media.



Swing check valve installation manual
The swing check valve is also called a check valve or a check valve, and its function is to prevent the medium in the pipeline from flowing backward. The valve of the opening and closing member is opened or closed by the medium activity and force to prevent the back flow of the medium.
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