Product Details

Pneumatic Wafer Butterfly Valve

2026-01-13

Product Detail

I. Product Parameters
1. Material Parameters
• Valve Body/Panel: 304 Stainless Steel (CF8), 316 Stainless Steel (CF3M, resistant to strong corrosion)
• Valve Seat: EPDM (Ethylene Propylene Diene Monomer Rubber, acid and alkali resistant, -20℃~120℃), PTFE (Polytetrafluoroethylene, temperature resistance -20℃~180℃), FKM (Fluororubber, resistant to high temperature corrosion)
• Valve Stem: 304 Stainless Steel
• Pneumatic Actuator: Cast aluminum housing (lightweight, rust resistant), stainless steel housing optional (for highly corrosive environments)
2. Specification Parameters
• Nominal Diameter: DN40~DN600 (corresponding to 1.5"~24")
• Nominal Pressure: PN10, PN16, PN25 (suitable for medium and low pressure pipelines)
• Connection Method: Clamp-on type (clamped between two pipe flanges by bolts)
• Air Source Pressure: 0.4~0.7MPa (compressed air)
3. Control and Operating Parameters
• Actuator Type: Double-acting (holds position upon air loss), Single-acting (spring return, returns to position upon air loss)
• Control Accessories: Optional 2-position 5-way solenoid valve, limit switch, electric positioner (dedicated for regulating type, receives 4-20mA signal)
• Protection Rating: Valve body IP65, actuator standard IP65, optional IP67
• Explosion-proof Rating: Optional Ex d II BT4/CT6 (suitable for flammable and explosive environments)
Operating Temperature: -20℃~180℃ (soft-seal valve seat)
II.Product Advantages
• Rapid Response and Efficient Opening and Closing: In pneumatic drive mode, the valve opening and closing time is short (0.5~3 seconds), suitable for production lines and fluid switching applications requiring rapid on/off switching.
• Convenient Installation and Space-Saving: The wafer-type structure is directly clamped between pipe flanges, eliminating the need for additional flange fittings, saving installation space and costs, and is particularly suitable for densely packed pipeline layouts.
• Safe, reliable, and highly adaptable: The single-acting actuator features a gas loss reset function, automatically returning to its original position (fully open/fully closed) in the event of a sudden gas outage, enhancing system safety redundancy; optional explosion-proof configuration meets the requirements of hazardous environments such as chemical and gas industries.
• Low maintenance cost: Simple structure, with only the valve seat and seals being vulnerable parts, making replacement convenient; the pneumatic actuator has a low failure rate, and daily maintenance only requires periodic checks of the air source cleanliness.
• Corrosion resistant and long service life: The stainless steel valve body can withstand various media such as water, weak acids and alkalis, and seawater. Combined with different valve seat materials, it can cover most industrial operating conditions, ensuring a long service life.
III. Product Applications
• Chemical Industry: Automatic on/off control of pipelines transporting chemical raw materials and solvents; explosion-proof models are suitable for fluid management in flammable and explosive workshops.
• Water Treatment Industry: Medium and low pressure pipelines in waterworks and sewage treatment plants, used for fluid switching and flow regulation in sedimentation tanks and filtration systems.
• Food and Beverage Sector: Raw material conveying pipelines in beverage bottling and food processing production lines; stainless steel construction meets hygiene standards, eliminating the risk of media contamination.
• HVAC Sector: Airflow control for chilled and hot water pipelines in central air conditioning systems, as well as air ducts in fresh air systems, enabling automated temperature regulation.
• Mechanical Equipment Support: Auxiliary pipeline control for air compressors, hydraulic equipment, and refrigeration units; fast response, compact size, and easy equipment integration.