Advantages of Pneumatic Ventilation Butterfly Valve:

1. It can remotely control valve opening and adjustment, achieving time-saving, labor-saving, and labor cost saving.

2. No connecting rods, bolts, etc. inside, reliable operation, long service life. It can be installed in multiple workstations without being affected by the flow direction of the medium.

3. It is designed and manufactured using a new structural form of welding midline disc plates and short structural steel plates. The structure is compact, lightweight, easy to install, has low flow resistance, high flow capacity, avoids the influence of high temperature expansion, and is easy to operate.

Pneumatic ventilation butterfly valve adopts standards: design standards: GB/T12238-1989, JB/T8692-1998 flange connection dimensions: GB/T9115.1-2000 structural length: GB/T12221-1989 pressure test: GB/T13927-1992、JB/T9092-1999

Strength test: 0.075; 0.375   zero point nine

Sealing test: ≤ 1.5% leakage rate

Applicable temperature:- 40～+450℃

Technical Parameters

Nominal diameter: DN50～DN2000(mm) 

Pressure level: PN0.25、0.6、1.0MPa 

Connection method: flange connection;

Structural form: midline structure;

Drive mode: Pneumatic control, air source drive (with handwheel available);

Valve body material: cast steel WCB, stainless steel 304, stainless steel 316;

Sealing Material: Body Sealing;

Workplace: Air, gas, dusty gases, flue gas, hot and cold air, etc;

Control mode: switch type (switch two position mode), adjustment type (adjusting disc opening);

Attachment selection: Positioner, solenoid valve, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc