Three-way heat insulated plug valve is widely utilized in petroleum, gas, electricity, etc. Plug is used as close member of plug valve. Rotating plug valve can open or close valve. Three-way heat insulated plug valve is used to connect or cut off medium in pipelines.
Advantages:
1. Having low fluid resistance.
2. Compact structure, low volume, light weight.
3. Good sealing
4. Without limitation of flow direction.
5. Without vibration.
Performance
Nominal Pressure
Testing Pressure PS(MPa)
Applicable Medium
Working Temperature
Shell
Sealing
10
1.5
1.1
Nitric acids, acetic acids
≤250
Materials
Body/plug
Packing
SS (stainless steel), CS (cast steel)
Flexible graphite
Dimensions
Nominal Diameter DN(mm)
L
D
D1
D2
Z-фd
20
150
105
75
55
4×14
25
160
115
85
65
4×14
32
190
135
100
78
4×18
40
200
145
110
85
4×18
50
220
160
125
100
4×18
65
280
180
145
120
4×18
80
300
195
160
135
4×18
100
340
215
180
155
8×18
125
350
245
210
185
8×18
150
400
280
240
210
8×23
200
480
335
295
265
8×23
250
530
390
350
320
12×23
300
610
440
400
368
12×23
PN(MPa)
(℃)
Source: https://www.chinavalvesflange.com/three-way-heat-insulated-plug-valve-ss-cs.html