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Bellows Balanced Spring Loaded Safety Valve
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Bellows Balanced Spring Loaded Safety Valve

Specifications

Main performance specifications
Nominal pressure PN 150 300 600 900 1500
Shell strength Ps(MPa) 3 7.5 15 22.5 38
Set pressure Pk(MPa) 0.1-2 1.6-5 3.2-10 8-25 10-25
Sealing pressure Pm(MPa) 90%PK
Seat return pressure Ph(MPa) ≥90%PK
Discharge pressure Pp(MPa) ≤1.1PK
Opening height H(mm) ≥1/4do
Applicable temperature C ≤300℃
P、R ≤200℃
Applicable to all media C Gas, liquid
P、R Nitric acid, acetic acid, gas, liquid
Main performance specifications
Code Diameter Code Diameter
D 10 L 50
E 13 M 55
F 16 N 60
G 20.5 P 72
H 26 Q 96
J 33 R 115
K 40 T 148
Main dimensions
WA42C150 WA42C150P WA42C150R
DN Size(mm)
D0 D D1 D2 b t Z-Φd DN' D' D1' D2' t' b' Z'-Φd' L L1 H
1/2'X3/4' D 89 60.5 35 12 5 4-15 20 98 70 43 1.6 14 4-15 90 90 320
3/4'X1' D 98 70 43 14 5 4-15 25 108 79.5 51 1.6 15 4-15 96 92 330
1'X11/2' D 108 79.5 51 15 5 4-15 40 127 98.5 73 1.6 18 4-15 115 105 340
1'X2' D 108 79.5 51 15 5 4-15 50 152 120.5 92 1.6 18 4-19 115 105 340
11/2'X2' G 127 98.5 73 18 5 4-15 50 152 120.5 92 1.6 18 4-19 121 124 360
11/2'X21/2' G 127 98.5 73 18 5 4-15 65 178 139.5 105 1.6 20 4-19 121 124 380
11/2'X3' G 127 98.5 73 18 5 4-15 80 190 152.5 127 1.6 22 4-19 124 130 380
2'X21/2' H 152 120.5 92 18 5 4-19 65 178 139.5 105 1.6 20 4-19 124 130 390
2'X3' J 152 120.5 92 18 5 4-19 80 190 152.5 127 1.6 22 4-19 124 130 390
21/2'X4' J 178 139.5 105 20 5 4-19 100 229 190.5 157 1.6 24 8-19 143 137 390
3'X4' L 190 152.5 127 22 5 4-19 100 229 190.5 157 1.6 24 8-19 162 156 460
4'X6' N 229 190.5 157 24 10 8-19 150 279 241.5 216 1.6 26 8-22 210 197 540
6'X8' P 279 241.5 216 26 10 8-22 200 343 298.5 270 1.6 29 8-22 241 240 780
8'X10' R 343 298.5 270 29 10 8-22 250 406 362 324 1.6 31 12-25 279 276 820
12'X14' T 483 432 381 32 10 12-25 350 533 476 413 1.6 35 12-29 370 370 890
WA42C300 WA42C300P WA42C300R
DN Size(mm)
D0 D D1 D2 b t Z-Φd DN' D' D1' D2' t' b' Z'-Φd' L L1 H
1/2'X3/4' D 95 66.5 35 15 5 4-15 20 98 70 43 1.6 14 4-15 90 90 320
3/4'X1' D 117 82.5 43 16 5 4-19 25 108 79.5 51 1.6 15 4-15 96 92 330
1'X11/2' D 124 89 51 18 5 4-19 40 127 98.5 73 1.6 18 4-15 115 105 340
1'X2' D 124 89 51 18 5 4-19 50 152 120.5 92 1.6 18 4-19 115 105 340
11/2'X2' F 156 114.5 73 20 5 4-22 50 152 120.5 92 1.6 18 4-19 121 124 360
11/2'X21/2' F 156 114.5 73 20 5 4-22 65 178 139.5 105 1.6 20 4-19 121 124 380
11/2'X3' F 156 114.5 73 20 5 4-22 80 190 152.5 127 1.6 22 4-19 124 130 380
2'X21/2' H 165 127 92 22 5 8-19 65 178 139.5 105 1.6 20 4-19 124 130 390
2'X3' H 165 127 92 22 5 8-19 80 190 152.5 127 1.6 22 4-19 124 130 390
21/2'X4' J 190 149 105 24 5 8-22 100 229 190.5 157 1.6 24 8-19 143 137 390
3'X4' L 210 168.5 127 28 5 8-22 100 229 190.5 157 1.6 24 8-19 162 156 460
4'X6' N 254 200 157 J2 10 8-22 150 279 241.5 216 1.6 26 8-22 210 197 540
6'X8' P 318 270 216 38 10 12-22 200 343 298.5 270 1.6 29 8-22 241 240 780
8'X10' R 381 330 270 42 10 12-25 250 406 362 324 1.6 31 12-25 279 276 820
10'X12' T 445 387.5 324 46 10 16-29 350 533 476 413 1.6 35 12-29 350 330 890
Note: The outlet flange is 150Lb.
WA42C600 WA42C600P WA42C600R
DN Size(mm)
D0 D D1 D2 b t Z-Φd DN' D' D1' D2' t' b' Z'-Φd' L L1 H
3/4'X1' D 118 82.5 43 16 7 4-19 25 108 79.5 51 1.6 15 4-15 96 92 330
1'X2' D 124 89 51 19 7 4-19 50 152 120.5 92 1.6 18 4-19 115 105 340
11/2'X2' F 156 114.5 73 22 7 4-22 50 152 120.5 92 1.6 18 4-19 152 124 360
11/2'X21/2' F 156 114.5 73 22 7 4^22 65 178 139.5 105 1.6 20 4-19 152 124 380
11/2'X3' F 156 114.5 73 22 7 4-22 80 190 152.5 127 1.6 22 4-19 152 124 380
2'X21/2' H 165 127 92 26 7 8-19 65 178 139.5 105 1.6 20 4-19 162 154 390
2'X3' H 165 127 92 26 7 8-19 80 190 152.5 127 1.6 22 4-19 162 154 390
21/2'X4' K 190 149 100 29 7 8-22 100 229 190.5 157 1.6 24 8-19 143 165 390
3'X4' K 210 168 127 32 10 8-22 100 229 190.5 157 1.6 24 8-19 162 155 460
4'X6' N 273 216 157 38 10 8-25 150 279 241.5 216 1.6 26 8-22 210 200 540
6'X8' P 356 292 216 46 10 12-29 200 343 298.5 270 1.6 29 8-22 241 240 780
Note: The outlet flange is 150Lb.

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