Pneumatic Diaphragm Control Valve

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Pneumatic Diaphragm Control Valve Details

Valve Size50 mm
Body MaterialCarbon Steel
Actuator TypeDiaphragm Actuator
Diaphragm MaterialNeoprene
End ConnectionFlanged
Pressure RatingPN16
Control TypeModulating
Air Supply Pressure5 bar
Application MediaPharmaceutical, Water, Chemicals
StandardsDIN

Minimum order quantity: 1 Piece

A diaphragm operated control valve uses a flexible diaphragm to regulate fluid flow, offering precise control, leak-free operation, and compatibility with corrosive, viscous, or hygienically sensitive fluids.Components
  • Valve Body: Houses the inlet and outlet ports and guides fluid flow; materials include cast iron, stainless steel, brass, or plastics like PVC 
    .
  • Diaphragm: A flexible elastomer or composite (e.g., EPDM, PTFE, Viton) that directly controls fluid flow and acts as a barrier to prevent contamination or leakage  1.
  • Actuator: Applies force to the diaphragm; can be manual, pneumatic, hydraulic, electric, or thermal 
    .
  • Stem and Compressor: The stem transmits actuator motion to the compressor, which ensures uniform diaphragm movement, providing accurate throttling 
    .
  • Bonnet: Protects the internal components and allows actuator mounting 
    .
  • Position Indicators: Optional devices showing whether the valve is open, closed, or partially open for monitoring or automation  1.
Types of Diaphragm Valves
  1. Weir (Saddle) Type: Features a raised weir where the diaphragm seals, allowing precise throttling; common in pharmaceutical, chemical, and food applications  2.
  2. Straight-Through (Full Bore) Type: Provides a straight, unobstructed flow path, ideal for slurries, viscous fluids, and applications requiring minimal pressure drop  2.
  3. Three-Way or Multi-Port Valves: Used for mixing or diverting flow paths  1.
  4. Hygienic/Biotech Valves: Designed for sterile or clean processes, typically in biotech or pharmaceutical sectors  1.
Materials of Construction
  • Valve Bodies: Cast iron, ductile iron, carbon steel, stainless steel, or alloys, selected based on fluid type and temperature  1.
  • Diaphragms: EPDM, PTFE, Nitrile, Neoprene, Viton, or polyurethane, chosen for chemical compatibility, flexibility, and durability  1.
  • End Connections: Flanged, threaded, socket weld, butt weld, or tri-clamp to suit system requirements 
    .

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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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