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Pneumatic butterfly valve with soft seat

Size: 1.DN40~DN300(1.5”~12”)
2.DN350~DN600(14”~24”)
3.DN700~DN1200(28”~48”)
Material:
Body:DI、WCB、LCC、CF8、CF8M
DIsc:DI、CF8、CF8M、CF3M、2205、2507、1.4529、C95400、C95500、C95800
Seat:EPDM、EPDMH、NBR、X-NBR、FKM、PTFE、NR、CSM
Stem:SS420、SS431、SS630、SS316
Pressure:PN6、PN10、PN16、CL150/150LB
Temp:-20℃~150℃
Driver:Pneumatic actuator
Parts name Material
Body Ductile cast iron,cast steel,Alloy steel,stainless steel
Disc ductile cast steel,cast steel,stainless steel andspecial material
Seal ring EPDM、PTFE、Viton...
Stem 2Cr13、Stainless steel
Packing O ring,flexible graphite
Availability:
Quantity:

Product Features

Soft sealing butterfly valve is suitable for water supplying and draining,gas pipe as adjust flux

and cut off medium in foodstuft.pharmacy,chemical industry,petroleum,electric power, light textile,
paper making etc with temperature<120C,nominal pressure<1.6MPa

Pros 

· The hand operation allows for easy operation and understanding.

· Relative low torque to switch position compared to ball valves.

· High Kv-value because fluid can flow in straight line.

· It has a small construction length in relation to the 65 mm (2-1/2 inch) diameter compared to a similar size ball valve.

· It can be used for a wide array of fluids and gases.

· Suitable for drinking water (DVGW approval).

· Suitable for viscous media.

· Remove the squeeze lever to mount an actuator thanks to the ISO 5211 flange.

Cons

· It doesn't have a fully unobstructed flow path due to the disc compared to ball valves.

· Can only be mounted with wafer type flange, which can't be used at the end of a line.


Application

The butterfly valves are a great cost effective solution for on/off operations as well as modulating the flow. Manually operated by either a squeeze lever with a locking detent or hand gear wheel, they are easily used. It has a small constructive length relative to the diameter and can be installed by a lug type flange or wafer type flange. There is also a wide range of housing, disc, and seal material options allowing these butterfly valves. They can be used for both liquids and gases in applications with a large temperature range. Some models can also be used for drinking water.



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