WA42C Type Pound-grade balance bellows spring-loaded safety valve
A. Pound-grade balance bellows spring-loaded safety valve Main property and specification
Normal Pressure PN 150 300 600 1500
Body strength Ps (MPa) 3.0 7.5 15 37.5
Set pressure Pk (MPa) 0.1~2 1.6~5 3.2~10 10~25
Seal pressure Pm 90%Pk
Reseating pressure Ph ≥90%Pk
Relieving pressure Pp ≤1.1Pk
Lift H (mm) ≥1/4 do
Appropriate temperature C ≤300℃
P、R ≤200℃
Appropriate medium C Gas, liquid
P、R Nitric Acid, Acetic Acid, Gas, Liquid
Code of throat diameter
Code Diameter Code Diameter
D 10 L 50
E 13 M 55
F 16 N 60
G 2035 P 72
H 26 Q 96
J 33 R 115
K 40 T 148
WA42C Type Pound-grade balance bellows spring-loaded safety valve
B. Pound-grade balance bellows spring-loaded safety valve Main Dimension
A42C150, A42C150P, A42C150R
Normal
Diameter DN (in)
Dimension(mm)
do D D1 D2 b t z-¢d DN’ D’ D1’ D2’ b’ t’ z-¢d’ L L1 H
12/’’ ×3/4’’ D 89 60.5 35 12 6 4-15 20 98 70 43 14 1.6 4-15 90 90 320
3/4’’ ×1’’ D 98 70 43 14 8 4-15 25 108 79.5 51 15 1.6 4-15 96 92 330
1’’ ×1 1/2’’ D 108 79.5 51 15 7 4-15 40 127 98.5 73 18 1.6 4-15 115 105 340
1’’ ×2’’ D 108 79.5 51 15 7 4-15 50 152 120.5 92 18 1.6 4-19 115 105 340
1 1/2’’ ×2’’ G 127 98.5 73 18 6 4-15 50 152 120.5 92 18 1.6 4-19 121 124 360
1 1/2’’ ×2 1/2’’ G 127 98.5 73 18 6 4-15 65 178 139.5 105 20 1.6 4-19 121 124 380
1 1/2’’ ×3’’ G 127 98.5 73 18 6 4-15 80 190 152.5 127 22 1.6 4-19 124 130 380
2’’ ×2 1/2’’ H 152 120.5 92 18 6 4-19 65 178 139.5 105 20 1.6 4-19 124 130 390
2’’ ×3’’ J 152 120.5 92 18 6 4-19 80 190 152.5 127 22 1.6 4-19 124 130 390
2 1/2’’ ×4’’ J 178 139.5 105 20 7 4-19 100 229 190.5 157 24 1.6 8-19 143 137 390
3’’ ×4’’ L 190 152.5 127 22 10 4-19 100 229 190.5 157 24 1.6 8-19 162 156 460
4’’ ×6’’ N 229 190.5 157 24 12 8-19 150 279 241.5 216 26 1.6 8-22 229 181 540
6’’ ×8’’ P 279 241.5 216 26 10 8-22 200 343 298.5 270 29 1.6 8-22 241 240 780
8’’ ×10’’ R 343 298.5 270 29 10 8-22 250 406 362 324 31 1.6 12-25 279 276 820
12’’ ×14’’ T 483 432 381 32 12 12-25 350 533 476 416 35 1.6 12-28 370 360 890

A42C300, A42C300P, A42C300R
Normal
Diameter DN (in)
Dimension(mm)
do D D1 D2 b t z-¢d DN’ D’ D1’ D2’ b’ t’ z-¢d’ L L1 H
12/’’ ×3/4’’ D 95 66.5 35 15 6 4-15 20 98 70 43 14 1.6 4-15 90 90 320
3/4’’ ×1’’ D 117 82.5 43 16 10 4-19 25 108 79.5 51 15 1.6 4-15 96 92 330
1’’ ×1 1/2’’ D 124 90 51 18 7 4-19 40 127 98.5 73 18 1.6 4-15 115 105 340
1’’ ×2’’ D 124 90 51 18 6 4-19 50 152 120.5 92 18 1.6 4-19 115 105 340
1 1/2’’ ×2’’ F 156 114.5 73 20 6 4-22 50 152 120.5 92 18 1.6 4-19 121 124 360
1 1/2’’ ×2 1/2’’ F 156 114.5 73 20 9 4-22 65 178 139.5 105 20 1.6 4-19 121 124 380
1 1/2’’ ×3’’ F 156 114.5 73 20 6 4-22 80 190 152.5 127 22 1.6 4-19 124 130 380
2’’ ×2 1/2’’ H 165 127 92 22 6 8-19 65 178 139.5 105 20 1.6 4-19 124 130 390
2’’ ×3’’ H 165 127 92 22 6 8-19 80 190 152.5 127 22 1.6 4-19 124 130 390
2 1/2’’ ×4’’ J 190 149.5 105 24 7 8-22 100 229 190.5 157 24 1.6 8-19 143 137 390
3’’ ×4’’ L 210 168 127 28 10 8-22 100 229 190.5 157 24 1.6 8-19 162 156 460
4’’ ×6’’ N 254 200 157 32 12 8-22 150 279 241.5 216 26 1.6 8-22 229 181 540
6’’ ×8’’ P 318 270 216 8 10 12-22 200 343 298.5 324 29 1.6 8-22 241 240 780
8’’ ×10’’ R 381 330 270 42 10 12-25 250 406 362 324 31 1.6 12-25 279 276 820
10’’ ×12’’ T 445 387.5 324 46 10 16-28 350 533 476 413 35 1.6 12-28 350 330 890
Remark: 150Lb for outlet flange

A42C600, A42C600P, A42C600R
Normal
Diameter DN (in)
Dimension(mm)
do D D1 D2 b t z-¢d DN’ D’ D1’ D2’ b’ t’ z-¢d’ L L1 H
3/4’’ ×1’’ D 117 82.5 43 16 10 4-19 25 108 79.5 51 15 1.6 4-15 96 92 330
1’’ ×2’’ D 124 90 51 19 6 4-19 50 152 120.5 92 18

1.6

4-19 115 105 340
1 1/2’’ ×2’’ F 156 114.5 73 22 10 4-22 50 152 120.5 92 18

1.6

4-19

152 124 360
1 1/2’’ ×2 1/2’’ F 156 114.5 73 22 9 4-22 65 178 139.5 105 20

1.6

4-19

152 124 380
1 1/2’’ ×3’’ F 156 114.5 73 22 6 4-22 80 190 152.5 127 22

1.6

4-19

152 124 380
2’’ ×2 1/2’’ H 165 127 92 26 6 8-19 65 178 139.5 105 20

1.6

4-19

162 154 390
2’’ ×3’’ H 165 127 92 26 6 8-19 80 190 152.5 127 22

1.6

4-19

162 154 390
2 1/2’’ ×4’’ K 190 149.5 105 26 7 8-22 100 229 190.5 157 247

1.6

8-19 143 165 390
3’’ ×4’’ K 210 168 127 29 10 8-22 100 229 190.5 157 24

1.6

8-19 162 155 460
4’’ ×6’’ N 273 215.9 157 38 12 8-25 150 279 241.5 216 26

1.6

8-22 210 200 540
6’’ ×8’’ P 356 292 216 46 10 12-28 200 343 298.8 270 29

1.6

8-22 241 240 780
Remark: 150Lb for outlet flange

The technical data subject to amend without notice