Valves
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Valves

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Valves Valves Presentation Transcript

  • VALVES TYPE & FUNCTION VALVES
  • Valves
    • On-Off Service
    • Throttling (Regulating) Service
    • Prevention of back flow
    • Pressure control (Control Valve)
  • ON – OFF SERVICE View slide
  • Gate valve. View slide
  • Gate Valve :-
    • ON – Off Valve ,Used in:
    • 1-Water.
    • 2- Oil.
    • 3- Gas
    • 4- Steam
    • And Other Fluid Services.
  • Wedge gate valve and parallel slide valve
  • Gate valve 2.
  • Plug valve (on-off) or Cock low-pressure
  • Plug valve (on-off) or Cock
  • Plug valve Applications
    • Gas and liquid fuel
    • Water.
    • Extreme temperature flow
    • Boiler feed water.
    • Low Pressure Steam .
    • Corrosive Liquids and Gases
  • Ball Valve (on-off)
  •  
  • Ball Valve Quarter-Turn
    • Hydraulic systems .
    • Water .
    • Air.
    • Oil .
    • Petrochemical .
    • High volume, high pressure and high temperature flow .
  • THROTTLING (Regulating) SERICE
  • Globe Valve (High pressure & value )
  • Globe Valve.
  • Globe Valve Ops.
  • Needle Valve
    • Fine accurate flow Cont.
  • Butterfly Valve
    • Flow Control
    • Low Speed
    • Both Side flow
  •  
  • Butterfly Valve 2
  • Prevention of back flow
  • split disc check
  • Split disc check valve operation
  • lift check valve (Recommended for Vapor service)
  • Swing check valve (liquids) installed horizontal & vertical
  • Swing check valve Ops.
  • Piston check valves
  • check valves
  • Ball check valve (for heavy fluids) installed horizontal ,vertical & angle
  • Check valve (Ball)
  • Pressure Relive valves
  • safety valves and relief valves
    • Safety valves are primarily used with compressible gases and in particular for steam and air services .
    • Relief valves are commonly used in liquid systems
  • Pressure Relief Valves
    • Releases excess pressure to protect system.
    • Use with Gases & Vapors & liquid.
    • Open Full at once at set pressure.
    • Outlet port larger than inlet port.
    • Never adjust whilst in service.
  • Type of Pressure Relief Valve
    • Safety valve : Used with compressible gases . steam and air services .
    • Relief valve : Used in liquid systems. as pressure overspill devices .
    • Safety relief valve : used either for liquid or compressible fluid.
  • Pressure Relieve valve (safety valve) for clean air
    • Releases excess pressure (clean air)
  • Safety valve - liquid applications, opens in proportion to the
  • Typical examples of safety valves used on steam & Air systems
  •  
  • pneumatic pressure reducing
    • Control system would normally consist of the following components:
    • Control valves.
    • Actuators.
    • Controllers.
    • Sensors.
  • Globe Valve.
  •  
  • Valve positions
  • Orifice plate
  • pressure gauge