DN 100 Control Valve

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DN 100 Control Valve Details

Valve TypeButterfly Valve
Valve SizeDN100
Flow CharacteristicOn Off
ActuationPneumatic
Body MaterialCast Iron
End ConnectionWafer
PositionerElectropneumatic
Leakage ClassClass VI
What is a Control Valve?Control valves modulate the flow of fluids—including liquids, gases, and steam—by adjusting the opening of the valve element, responding to signals from a controller like a PLC or DCS. They act as the  final control element in automated systems, completing a control loop that stabilizes the process variable at a setpoint by modifying flow accurately and continuously  Wikipedia+2.Components of a Control Valve
  1. Valve Body and Bonnet: The main structure containing the fluid flow path, pressure boundary, and attachment points for the actuator  2.
  2. Closure Element (Plug, Ball, Disc): The movable component that restricts or allows flow. Its design determines the valve’s flow characteristic 
    .
  3. Seat: Provides a seal for shutoff and precision control. Can be metal or soft-seated.
  4. Stem (Shaft): Connects actuator to the closure element for linear or rotary motion  1.
  5. Actuator: Moves the valve element in response to the control signal. Types include pneumatic (air), electric, and hydraulic actuators  3.
  6. Positioner: Ensures the valve achieves the exact position dictated by the controller, compensating for friction and pressure variations  2
Types of Control ValvesControl valves are classified based on movement, function, actuator type, and pressure profile:1. Motion of Closing Element
  • Linear Motion Valves: Stem moves up/down. Examples: Globe valve, Gate valve, Diaphragm valve  2.
  • Rotary Motion Valves: Quarter-turn rotation. Examples: Ball valves, Butterfly valves, Plug valves Material Considerations
Valve body and trim materials depend on fluid type, temperature, and corrosion risk:
  • Carbon Steel: General industrial services  
    .
  • Stainless Steel (CF8M/316): Corrosive fluids, chemical industries  2.
  • Bronze/Brass: Low-temperature, low-pressure or plumbing use.
  • Exotic Alloys/Teflon-Lined: Severe service with aggressive chemicals  1.
ApplicationsControl valves are widely used in:
  • Oil & Gas: Flow and pressure control in pipelines, separators, and flare systems  1.
  • Chemical and Petrochemical Plants: Handling corrosive or high-temperature fluids.
  • Power Generation: Steam, coolant, and feedwater regulation.
  • Water Treatment & HVAC: Flow, pressure, and temperature regulation 

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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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