Water type pass shaft without pin soft back butterfly valve

1.Technical Date:

Size: DN40-DN1200

Nominal Pressure: PN10/PN16

  Operation Temperature:  -10℃～150℃

  Suitable Medium: Water, Sewage, Seawater, Gas, Food, Oils, etc.

2. Standard

  Design Standard: GB/T 12238-2008

  Structural Length: GB/T 12221-2005

  Top Flange dimensions: ISO5211

  Face to face dimensions: GB9112, DIN2501, BS4504, ISO2084, ANSI125

  Type of connection: Water Type

3. Feature:

  This valve is mainly composed of body, butterfly plate, valve shaft, seat and transmission devices. Simple and compact structure, small portable, convenient for transport, install and dismantle. 90 degrees of opening and closing, switch quickly, operating is small, light energy; Sealing performance is good, service life is long, can achieve zero leakages. Flow curve tending to straight line, excellent regulation performance.

4. Sealability:

The valve for rubber seal, closing butterfly plate and seat sealing performance is good, two-way sealed good performance and the torque is small. the friction is very small between butterfly plate and the seat seal. The valve shaft drive the butterfly plate, butterfly plate do 90 degrees rotation. Butterfly plate flexible for opening and closing, no card acerbity, beating phenomenon, small torque.