Title: VALVES TYPE
1VALVES TYPE FUNCTION
2Valves
- On-Off Service
- Throttling (Regulating) Service
- Prevention of back flow
- Pressure control (Control Valve)
3ON OFF SERVICE
4Gate valve.
5Gate 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
7Gate valve 2.
8Plug valve (on-off) or Cock low-pressure
9Plug valve (on-off) or Cock
10Plug valve Applications
- Gas and liquid fuel
- Water.
- Extreme temperature flow
- Boiler feed water.
- Low Pressure Steam .
- Corrosive Liquids and Gases
11Ball Valve (on-off)
12(No Transcript)
13Ball Valve Quarter-Turn
- Hydraulic systems .
- Water .
- Air.
- Oil .
- Petrochemical .
- High volume, high pressure and high temperature
flow .
14THROTTLING(Regulating) SERICE
15Globe Valve (High pressure value )
16Globe Valve.
17Globe Valve Ops.
18Needle Valve
19Butterfly Valve
- Flow Control
- Low Speed
- Both Side flow
20 21Butterfly Valve 2
22 23split disc check
24Split disc check valve operation
25lift check valve (Recommended forVapor service)
26Swing check valve (liquids)installed horizontal
vertical
27Swing check valve Ops.
28Piston check valves
29check valves
30Ball check valve (for heavy fluids) installed
horizontal ,vertical angle
31Check valve (Ball)
32Pressure Relive valves
33safety 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.
35Type 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.
36Pressure Relieve valve (safety valve) for clean
air
- Releases excess pressure (clean air)
37Safety valve - liquid applications, opens in
proportion to the
38Typical examples of safety valves used on steam
Air systems
39(No Transcript)
40pneumatic pressure reducing
41- Control system would normally consist of the
following components - Control valves.
- Actuators.
- Controllers.
- Sensors.
42Globe Valve.
43(No Transcript)
44Valve positions
45Orifice plate
46pressure gauge