萬能閥門有限公司
萬能閥門有限公司
一、NFWA42C美標波紋管式安全閥適用于存在變動背壓和有毒易燃的空器設備或管路系統，作為安全保護裝置
二、NFWA42C美標波紋管式安全閥主要尺寸
| 公稱通徑 DN(in) | 尺寸 | ||||||||||||||||
| 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 |
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