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VALVES TYPE & FUNCTION

VALVES TYPE & FUNCTION. VALVES. Valves. On-Off Service Throttling (Regulating) Service Prevention of back flow Pressure control (Control Valve). ON – OFF SERVICE. Gate valve. Gate Valve :-. ON – Off Valve ,Used in: 1-Water. 2- Oil. 3- Gas 4- Steam And Other Fluid Services.

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VALVES TYPE & FUNCTION

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  1. VALVES TYPE & FUNCTION VALVES

  2. Valves • On-Off Service • Throttling (Regulating) Service • Prevention of back flow • Pressure control (Control Valve)

  3. ON – OFF SERVICE

  4. Gate valve.

  5. Gate Valve :- • ON – Off Valve ,Used in: • 1-Water. • 2- Oil. • 3- Gas • 4- Steam • And Other Fluid Services.

  6. Wedge gate valve and parallel slide valve

  7. Gate valve 2.

  8. Plug valve (on-off) or Cock low-pressure

  9. Plug valve (on-off) or Cock

  10. Plug valve Applications • Gas and liquid fuel • Water. • Extreme temperature flow • Boiler feed water. • Low Pressure Steam . • Corrosive Liquids and Gases

  11. Ball Valve (on-off)

  12. Ball Valve Quarter-Turn • Hydraulic systems . • Water . • Air. • Oil . • Petrochemical . • High volume, high pressure and high temperature flow .

  13. THROTTLING(Regulating) SERICE

  14. Globe Valve (High pressure & value )

  15. Globe Valve.

  16. Globe Valve Ops.

  17. Needle Valve • Fine accurate flow Cont.

  18. Butterfly Valve • Flow Control • Low Speed • Both Side flow

  19. Butterfly Valve 2

  20. Prevention of back flow

  21. split disc check

  22. Split disc check valve operation

  23. lift check valve(Recommended forVapor service)

  24. Swing check valve (liquids)installed horizontal & vertical

  25. Swing check valve Ops.

  26. Piston check valves

  27. check valves

  28. Ball check valve (for heavy fluids) installed horizontal ,vertical & angle

  29. Check valve (Ball)

  30. Pressure Relive valves

  31. 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

  32. 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.

  33. 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.

  34. Pressure Relieve valve (safety valve) for clean air • Releases excess pressure (clean air)

  35. Safety valve - liquid applications, opens in proportion to the

  36. Typical examples of safety valves used on steam & Air systems

  37. pneumatic pressure reducing

  38. Control system would normally consist of the following components: • Control valves. • Actuators. • Controllers. • Sensors.

  39. Globe Valve.

  40. Valve positions

  41. Orifice plate

  42. pressure gauge

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