VALVES TYPE

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
(No Transcript)
13
Ball Valve Quarter-Turn

• Hydraulic systems .
• Water .
• Air.
• Oil .
• Petrochemical .
• High volume, high pressure and high temperature
  flow .

14
THROTTLING(Regulating) SERICE
15
Globe Valve (High pressure value )
16
Globe Valve.
17
Globe Valve Ops.
18
Needle Valve

• Fine accurate flow Cont.

19
Butterfly Valve

• Flow Control
• Low Speed
• Both Side flow

20

21
Butterfly Valve 2
22

• Prevention of back flow

23
split disc check
24
Split disc check valve operation
25
lift check valve (Recommended forVapor service)
26
Swing check valve (liquids)installed horizontal
vertical
27
Swing check valve Ops.
28
Piston check valves
29
check valves
30
Ball check valve (for heavy fluids) installed
horizontal ,vertical angle
31
Check valve (Ball)
32
Pressure Relive valves
33
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

34
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.

35
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.

36
Pressure Relieve valve (safety valve) for clean
air

• Releases excess pressure (clean air)

37
Safety valve - liquid applications, opens in
proportion to the
38
Typical examples of safety valves used on steam
Air systems
39
(No Transcript)
40
pneumatic pressure reducing
41

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

42
Globe Valve.
43
(No Transcript)
44
Valve positions
45
Orifice plate
46
pressure gauge