D641X  Pneumatic flange cut-off butterfly valve pn6 ~ PN16 is composed of double acting or single acting cylinder and soft sealing flange butterfly valve. Electric flange soft seal butterfly valve is composed of rubber seal butterfly valve, carbon steel or stainless steel valve plate and valve stem. It is suitable for water supply and drainage and gas pipelines with temperature ≤ 120 ℃, such as textile, paper making, food, medicine, chemical industry, petroleum, electric power, etc. The butterfly plate of flange type soft seal butterfly valve adopts frame structure, high strength, small flow resistance and large medium flow area. The pneumatic actuator has large torque, fast opening speed and high explosion-proof safety performance.

1. The design is novel and reasonable, with unique structure, light weight and quick opening and closing.
2. Small operating torque, convenient operation, labor saving and dexterous.
3. It can be installed in any position and maintained conveniently.
4. The sealing element can be replaced, the sealing performance is reliable, and the two-way sealing is zero leakage.
5. The sealing material has the characteristics of aging resistance, corrosion resistance and long service life.

Design standard: GB / t2238989
Flange connection size: GB / t9113.1-2000; GB / t9115.1-2000; jb78
Structural length: GB / t12221989
Pressure test: GB / t13927992; JB / t9092999