各种阀门的工作动画演示
合集下载
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
6
Gate valve 2.
7
Plug valve (on-off) or Cock
low-pressure
8
Plug valve (on-off) or Cock
9
Plug valve Applications
Gas and liquid fuel Water. Extreme temperature flow Boiler feed water. Low Pressure Steam . Corrosive Liquids and Gases
10
Ball Valve (on-off)
11
12
Ball Valve Quarter-Turn
Hydraulic systems . Water . Air. Oil . Petrochemical . High volume, high pressure and high temperature flow .
35
Pressure Relieve valve (safety valve)
for clean air
Releases excess pressure (clean air)
36
Safety valve - liquid applications, opens in proportion to the
Flow Control Low Speed Both Side flow
19
20
Butterfly Valve 2
21
Prevention of back flow
22
split disc check
23
Split disc check valve operation
24
lift check valve (Recommended for
3
Gate valve.
4
Gate Valve :-
– Off Valve ,Used in: 1-Water. 2- Oil. 3- Gas 4- Steam And Other Fluid Services.
ON
5
Wedge gate valve and parallel slide valve
VALVES TYPE & FUNCTION
VALVES
1
Valves
On-Off Service Throttling (Regulating) Service Prevention of back flow Pressure control (Control Valve)
2
ON – OFF SERVICE
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
33
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.
Vapor service)
25
Swing check valve (liquids) installed horizontal & vertical
26
Swing check valve Ops.
27
Piston check valves
28
check valves
29
Ball check valve (for heavy fluids) installed horizontal ,vertical & angle
41
wenku.baidu.com
Globe Valve.
42
43
Valve positions
44
Orifice plate
45
pressure gauge
46
34
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.
37
Typical examples of safety valves used on steam & Air systems
38
39
pneumatic pressure reducing
40
Control system would normally consist of the following components: Control valves. Actuators. Controllers. Sensors.
30
Check valve (Ball)
31
Pressure Relive valves
32
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