PNEUMATIC BUTTERFLY VALVE
TECHNICAL PARAMETERS
Item Pneumatic butterfly valve
Nominal diameter DN50-DN1200
Pressure level PN10-PN40 (ANSI 150LB-300LB optional)
Valve body material WCB, CF8, CF8M, duplex steel, etc.
Seal material EPDM, NBR, PTFE, metal seal
Air source pressure 0.4-0.7MPa
Applicable media Water, steam, oil, gas, particulate matter
FEATURES
Quick response
Pneumatic drive, opening and closing actions are completed within 0.5-2 seconds, meeting the needs of automatic control.
High sealing
Pneumatic drive, opening and closing actions are completed within 0.5-2 seconds, meeting the needs of automatic control.
Pressure and temperature resistance
The valve body material can be cast iron, cast steel, stainless steel, etc. The pressure range is PN10-PN40 and the applicable temperature is -29C~200C.
Lightweight design
Wafer installation does not require flanges, saving space and reducing the load on the piping system.
OVERVIEW
Pneumatic wafer butterfly valve is an industrial valve driven by pneumatic actuator. It can be quickly installed in the pipeline through wafer connection. It is widely used in flow regulation and cut-off control of liquid, gas and dust media. It has compact structure, fast opening and closing, reliable sealing, and is an ideal choice for petrochemical, electric power, metallurgy, water treatment and other fields.
PRODUCT COMPOSITION
Pneumatic actuator:
Single acting (spring return) or double acting (bidirectional air control) optional.
Standard positioner and solenoid valve, support 4-20mA signal input, to achieve precise opening adjustment.
Bearings and connectors: low friction coefficient bearings ensure flexible rotation, clamp bolts meet ISO standards.
Pneumatic wafer butterfly valve
Consists of the following core components to ensure efficient and stable operation:
Valve body: precision casting, streamlined design to reduce medium resistance, corrosion resistance, high pressure resistance.
Valve plate: disc structure, surface covered with rubber or polytetrafluoroethylene (PTFE), to achieve bidirectional sealing.
Valve stem: high-strength stainless steel material, anti-fracture, anti-torsion, to ensure long service life.
Seal ring: EPDM, NBR or fluororubber material, suitable for different media conditions.
PRODUCT ADVANTAGES
Intelligent control
Adapt to DCS/PLC system, remote control one-button start and stop, improve automation level.
Easy maintenance
Modular design, seals and valve plates can be quickly replaced, reducing downtime costs.
Energy saving and environmental protection
Low flow resistance design reduces energy consumption, and zero leakage structure avoids medium waste.
Widely compatible
Diameter DN50-DN1200, supports flange, wafer and other standards (GB, ANSI, DIN).
SELECTION GUIDE
Confirm the medium type: Corrosive media requires stainless steel valve body + PTFE seal.
Clarify the control mode: double-acting actuator is selected for switch type, and positioner is required for regulating type.
Check the installation dimensions: provide pipe diameter, flange standard and interface direction (horizontal/vertical).
Special requirements: explosion-proof certification, high temperature customization, vacuum working conditions, etc. can be customized exclusively.
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