1, small, lightweight, easy installation and maintenance, and can be mounted in any position.

2, the structure is simple, compact, low operating torque, 90 ° swing open quickly .

Soft sealing flange butterfly For temperature ≤120 ℃, nominal pressure ≤1.6MPa food, pharmaceutical, chemical, oil, electricity, textile, paper and other water supply and drainage, gas pipes for regulating traffic and closure of media role.