ANSI Bellows Safety Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
ANSI bellows safety valves
nominal diameter：NPS(in) 1/2" - 12"
pressure class：CLASS 150 - 600
applicable medium and temperature：
liquid, gas≤300℃
nitric acid, acetic acid ≤200℃
steam ≤550℃
R22≤55℃
Dimensions & constructral diagram
ANSI bellows safety valve constructral diagram
Main performance and specifications
| nominal pressure | PN | 150 | 300 | 600 | |
| shell intensity | Ps(MPa) | 3.0 | 7.5 | 15 | |
| set pressure | Pk(Mpa) | 0.1～2 | 1.6～5 | 8～15 | |
| sealing pressure | Pm | 90％ Pk | |||
| back seat pressure | Pn | ≥90％ Pk | |||
| exhaust pressure | Pp | ≤1.1 Pk | |||
| opening height | H(mm) | ≥ 1/4 d0 | |||
| suitable temperature | C | ≤300℃ | |||
| P、R | ≤200℃ | ||||
| applicable medium | C | gas, liquid | |||
| P、R | methylamine | ||||
Throat diameter code
| 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
| nominal diameter DN(in) | dimensions | ||||||||||||||||
| d0 | D | D1 | D2 | b | t | Z-Φd | DN' | D' | D1' | D2' | b' | t' | Z-Φd' | L | L1 | H | |
| 1/2"×3/4" | D | 89 | 60.5 | 35 | 12 | 18 | 4-15 | 20 | 98 | 70 | 43 | 14 | 1.6 | 4-15 | 90 | 90 | 260 |
| 3/4"×1" | D | 98 | 70 | 43 | 14 | 24 | 4-15 | 25 | 108 | 79.5 | 51 | 15 | 1.6 | 4-15 | 96 | 92 | 260 |
| 1"×1 1/2 " | D | 108 | 79.5 | 51 | 15 | 22 | 4-15 | 40 | 127 | 98.5 | 73 | 18 | 1.6 | 4-15 | 115 | 105 | 280 |
| 1"×2" | D | 108 | 79.5 | 51 | 15 | 22 | 4-15 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 115 | 105 | 280 |
| 1 1/2 "×2" | G | 127 | 98.5 | 73 | 18 | 24 | 4-15 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 121 | 124 | 310 |
| 1 1/2 "×2 1/2 " | G | 127 | 98.5 | 73 | 18 | 24 | 4-15 | 65 | 178 | 139.5 | 105 | 20 | 1.6 | 4-19 | 121 | 124 | 310 |
| 1 1/2 "×3" | G | 127 | 98.5 | 73 | 18 | 24 | 4-15 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 124 | 130 | 310 |
| 2"×2 1/2 " | H | 152 | 120.5 | 92 | 18 | 24 | 4-19 | 65 | 178 | 139.5 | 105 | 20 | 1.6 | 4-19 | 124 | 130 | 350 |
| 2"×3" | J | 152 | 120.5 | 92 | 18 | 24 | 4-19 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 124 | 130 | 350 |
| 2 1/2 "×4" | J | 178 | 139.5 | 105 | 20 | 27 | 4-19 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 143 | 137 | 430 |
| 3"×4" | L | 190 | 152.5 | 127 | 22 | 32 | 4-19 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 162 | 156 | 490 |
| 4"×6" | N | 229 | 190.5 | 157 | 24 | 36 | 8-19 | 150 | 279 | 241.5 | 216 | 26 | 1.6 | 8-22 | 229 | 181 | 610 |
| 6"×8" | P | 279 | 241.5 | 216 | 26 | 36 | 8-22 | 200 | 343 | 298.5 | 270 | 29 | 1.6 | 8-22 | 241 | 240 | 840 |
| 8"×10" | R | 343 | 298.5 | 270 | 29 | 39 | 8-22 | 250 | 406 | 362 | 324 | 31 | 1.6 | 12-25 | 279 | 276 | 990 |
| 12"×14" | T | 483 | 432 | 381 | 32 | 42 | 12-25 | 350 | 533 | 476 | 413 | 35 | 1.6 | 12-28 | 370 | 360 | 1040 |
WA44C300，WA44C300R
| nominal diameter (DN)in | dimensions | ||||||||||||||||
| d0 | D | D1 | D2 | b | t | Z-Φd | DN＇ | D＇ | D1＇ | D2＇ | b＇ | t＇ | Z-Φd＇ | L | L1 | H | |
| 1/2"×3/4" | D | 95 | 66.5 | 35 | 15 | 6 | 4-15 | 20 | 98 | 70 | 43 | 14 | 1.6 | 4-15 | 90 | 90 | 260 |
| 3/4"×1" | D | 117 | 82.5 | 43 | 16 | 10 | 4-19 | 25 | 108 | 79.5 | 51 | 15 | 1.6 | 4-15 | 96 | 92 | 260 |
| 1"× 1 1/2 " | D | 124 | 90 | 51 | 18 | 7 | 4-19 | 40 | 127 | 98.5 | 73 | 18 | 1.6 | 4-15 | 115 | 105 | 280 |
| 1"×2" | D | 124 | 90 | 51 | 18 | 6 | 4-19 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 115 | 105 | 20 |
| 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 | 310 |
| 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 | 310 |
| 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 | 310 |
| 2"×2 1/2 " | H | 165 | 127 | 92 | 22 | 6 | 8-19 | 65 | 178 | 139.5 | 105 | 20 | 1.6 | 4-19 | 124 | 130 | 350 |
| 2"×3" | H | 165 | 127 | 92 | 22 | 6 | 8-19 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 124 | 130 | 350 |
| 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 | 430 |
| 3"×4" | L | 210 | 168 | 127 | 28 | 10 | 8-22 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 162 | 156 | 490 |
| 4"×6" | N | 254 | 200 | 157 | 32 | 12 | 8-22 | 150 | 279 | 241.5 | 216 | 26 | 1.6 | 8-22 | 229 | 181 | 610 |
| 6"×8" | P | 318 | 270 | 216 | 38 | 10 | 12-22 | 200 | 343 | 298.5 | 270 | 29 | 1.6 | 8-22 | 241 | 240 | 840 |
| 8"×10" | R | 381 | 330 | 270 | 42 | 10 | 12-25 | 250 | 406 | 362 | 324 | 31 | 1.6 | 12-25 | 279 | 276 | 990 |
| 10"×12" | T | 445 | 387.5 | 324 | 46 | 10 | 16-28 | 350 | 533 | 476 | 413 | 35 | 1.6 | 12-28 | 350 | 330 | 104 |
WA44C600
| nominal diameter (DN)in | dimensions(mm) | ||||||||||||||||
| do | D | D1 | D2 | b | t | Z-Φd | DN＇ | D＇ | D1＇ | D2＇ | b＇ | t＇ | Z-Φd＇ | 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 | 280 |
| 1"×2" | D | 124 | 90 | 51 | 19 | 6 | 4-19 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 115 | 105 | 300 |
| 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 | 300 |
| 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 | 330 |
| 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 | 330 |
| 2"×2 1/2" | H | 165 | 127 | 92 | 26 | 6 | 8-19 | 65 | 178 | 139.5 | 105 | 20 | 1.6 | 4-19 | 162 | 154 | 330 |
| 2"×3" | H | 165 | 127 | 92 | 26 | 6 | 8-19 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 162 | 154 | 360 |
| 2 1/2" ×4" | K | 190 | 149.5 | 105 | 29 | 7 | 8-22 | 100 | 229 | 190.5 | 157 | 247 | 1.6 | 8-19 | 143 | 165 | 360 |
| 3"×4" | K | 210 | 168 | 127 | 32 | 10 | 8-22 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 162 | 155 | 440 |
| 4"×6" | N | 273 | 215.9 | 157 | 38 | 12 | 8-25 | 150 | 279 | 241.5 | 216 | 26 | 1.6 | 8-22 | 210 | 200 | 610 |
| 6"×8" | P | 356 | 292 | 216 | 46 | 10 | 12-28 | 200 | 343 | 298.5 | 270 | 29 | 1.6 | 8-22 | 241 | 240 | 625 |
