350MM Pneumatic Actuator Butterfly Valves

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350MM Pneumatic Actuator Butterfly Valves Details

Actuator TypeDouble Acting
Size350 mm
Body MaterialCast Iron
End ConnectionWafer
Seat MaterialEPDM
Air Supply Pressure5–7 bar
AccessoriesSolenoid Valve
Pressure RatingPN16

Minimum order quantity: 1 Piece

Pneumatic actuator butterfly valves are automated quarter-turn valves using compressed air to rotate a disc, enabling fast, precise, and reliable control of fluid flow in industrial settings.OverviewA  butterfly valve is a quarter-turn valve consisting of a circular disc that rotates to regulate flow. When combined with a  pneumatic actuator, it automates opening, closing, or flow modulation using compressed air 
. This system allows high-speed operation and reduces manual intervention while offering versatility for a wide range of industrial applications  
.Key Components
  • Valve Body: The external structure that houses the butterfly disc and connects to the pipeline  
    .
  • Butterfly Disc: Rotates inside the valve to control fluid flow, typically 0° (closed) to 90° (fully open).
  • Stem/Shaft: Connects the disc to the actuator for torque transfer.
  • Pneumatic Actuator: Converts compressed air into mechanical motion via pistons or vanes, rotating the valve stem  
    .
  • Control Accessories (Optional): Positioners and solenoid valves allow precise modulation and integration with automated control systems  
    .
Working Principle
  1. Air Supply: Compressed air enters the actuator chamber.
  2. Actuator Motion: Air pressure moves a piston, diaphragm, or vane generating torque.
  3. Torque Transfer: Motion is transmitted to the valve stem.
  4. Disc Rotation: The butterfly disc rotates between 0° (closed) and 90° (open). Intermediate positions allow  modulating control
      .
  5. Fail-Safe Mechanism (Optional): In single-acting (spring return) actuators, the valve automatically returns to a safe position if air pressure is lost  
    .
Types of Pneumatic Actuators
  • Single-Acting (Spring Return): Uses air to open (or close) and a spring to return the valve; ideal for  fail-safe applications, emergency shutdowns, or infrequent operation  
    .
  • Double-Acting: Uses air for both opening and closing; suitable for  frequent operation, precise positioning, and bidirectional flow control
      .

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Location
134, Adarsh Sliver Industrial Estate, Nr Pelican Estate-2,Rd Number 5, Kathwada GIDC, Ahmedabad, Kathwada, Gujarat 382430,
Ahmedabad - 382430
Gujarat (India)
Shiv Valves Industries
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