Before understanding how to use the soft-seal butterfly valve, we first understand the system of the soft-seal butterfly valve. The soft seal butterfly valve is divided into soft seal wafer butterfly valve and soft seal flange butterfly valve. Both have the advantages of excellent sealing performance. The soft seal butterfly valve can be used in petroleum, chemical, urban water supply and drainage, sewage treatment and many other fields. For the strict sealing of the environment under normal temperature and pressure conditions. Does not apply to high temperature, high pressure and corrosion, wear and severe working conditions.
The soft sealing butterfly valve is applicable to the medium including water, oil, steam and other acid alkaline substances, in the pipeline to do flow cutting and control.Sealing surface of soft seal butterfly valve is usually made of EPDM rubber, nitrile rubber and Teflon. The medium of EPDM rubber is generally water or steam; nitrile rubber is suitable for medium of oil; Vinyl fluoride is suitable for certain corrosive media pipelines.
The method of using soft seal butterfly valve is very simple. Operate the drive device on the valve body to drive the movement of the valve stem. The valve stem drives the rotation of the butterfly plate to realize the opening and closing of the valve. The selection angle of the butterfly plate is between 0-90°. between. Soft-seal butterfly valve actuators typically include handles, turbine heads, pneumatic actuators, and electric actuators. According to different calibers and pressures to choose different driving methods, their specific use methods require you to carefully consult the relevant technical personnel before installation.
Finally, tell everyone how to judge the quality of the soft seal butterfly valve:
1.Before installation, do the stress test. If the pressure of the test is 1.5 times of the rated working pressure, there will be no leakage in 10 minutes, and the valve structure damage will be qualified.
2.After installation, the valve should be opened and closed. If there is no carton, the operation is flexible, and the valve is fully open and fully closed, which is qualified.
Buy soft seal butterfly valve, choose a good valve manufacturer is very important, like Bundor valve, product reliability, service and trustworthy, reliable.