各种阀门的工作动画演示

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
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 for

Vapor 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 valvesare primarily used with
compressible gases and in particular for
steam and air services .


Relief valvesare 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
40
pneumatic pressure reducing
41

Control system would normally consist of the
following components:


Control valves.

Actuators.

Controllers.

Sensors.
42

Globe Valve.
43
44

Valve positions
45

Orifice plate
46

pressure gauge