Pneumatic Actuated Butterfly Valves

Pneumatic Actuated Butterfly Valves provide rapid, dependable automated quarter-turn control driven by compressed air. Widely implemented across automated processing plants, chemical mixing units, wastewater treatment facilities, and emergency shutdown systems, pneumatic butterfly valves offer lightning-fast opening/closing speeds (typically 1 to 3 seconds) and inherently explosion-proof operation.

Zeron Fastners integrates precision rack-and-pinion and scotch-yoke pneumatic actuators directly onto high-performance and resilient-seated butterfly valves via standard ISO 5211 mounting flanges. Available in both Double-Acting (air-to-open, air-to-close) and Single-Acting Spring-Return (Fail-Close or Fail-Open) configurations, fully equipped with NAMUR solenoid valves, limit switch boxes, and 4-20mA smart electro-pneumatic positioners.

Pneumatic Actuated Butterfly Valves Suppliers Manufacturer India

Technical Specifications

Specification Feature Details & Standard Compliance
Actuator Principle Pneumatic Rack and Pinion / Scotch Yoke Heavy-Duty Cylinder
Operating Modes Double Acting (DA) & Single Acting Spring Return (SR Fail-Close/Open)
Air Supply Pressure 3 Bar to 8 Bar (40 PSI to 120 PSI) Instrument Air
Cycle Speed 1 to 3 seconds standard (Fast-acting throttle or instant shutoff)
Valve Size Range 1.5" to 24" (DN40 - DN600)
Body Compatibility Wafer, Lugged, or Flanged Butterfly Valve bodies
Accessories Included NAMUR Solenoid Valve (24VDC/220VAC), Micro Limit Switch Box, Air Filter Regulator, 4-20mA Positioner
Body Materials Ductile Iron, Cast Steel WCB, SS 316, Duplex 2205
Hazardous Area Approval ATEX, IECEx, PESO certified explosion-proof coil and switches
Testing Standard API 598, ISO 5208, Actuator Cycle Endurance Tested

Pneumatic Automation Configurations

Type & Model Key Features & Operating Applications
On/Off Rapid Isolation Valves Double-acting pneumatic actuator with NAMUR pilot solenoid valve for high-speed line shutoff.
Fail-Safe Spring Return Valves Internal high-tensile springs automatically drive valve closed or open upon loss of instrument air or power.
Modulating Flow Control Valves Equipped with 4-20mA smart electro-pneumatic positioner for pinpoint throttling control.
Emergency Shutdown (ESD) Valves SIL 3 rated safety valves configured for immediate fire hazard or overpressure isolation.

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