A38Y/A37Y/A43Y彈簧雙聯(lián)式安全閥

雙聯(lián)彈簧式安全閥適用于工作溫度≤350℃的蒸汽、水等介質(zhì)的設(shè)備和管路上。作為超壓保護裝置。連接法蘭標(biāo)準(zhǔn)按JB/T......94的系列1
A38Y彈簧雙聯(lián)式安全閥、A43H、A37H是在Y型接頭上裝設(shè)兩個同樣規(guī)格的A48Y或A47H型安全閥而構(gòu)成,其公稱通徑系列指Y型接頭進口通徑,其組合情況如下表:

外形尺寸和連接尺寸
| 型號 | 公稱通徑 | do | D | K | g | g1 | b | f | f1 | Z-?d | DN' | D1 | K1 | g2 | b1 | f' | Z1-?d1 | L | L1 | L0 | h | H |
| A37H-16C A43H-16C | 50 | 25 | 165 | 125 | 100 | | 20 | 3 | | 4-18 | 32 | 140 | 100 | 78 | 18 | 2 | 4-18 | 115 | 110 | 165 | 235 | 547 |
| 80 | 40 | 200 | 160 | 135 | | 20 | 3 | | 8-18 | 50 | 165 | 125 | 100 | 16 | 3 | 4-18 | 135 | 120 | 190 | 285 | 795 | |
| 80 | 50 | 200 | 160 | 135 | | 20 | 3 | | 8-18 | 65 | 185 | 145 | 120 | 18 | 3 | 4-18 | 140 | 130 | 205 | 310 | 835 | |
| 100 | 65 | 220 | 180 | 155 | | 22 | 3 | | 8-18 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 160 | 135 | 255 | 355 | 890 | |
| 125 | 80 | 250 | 210 | 185 | | 22 | 3 | | 8-18 | 100 | 220 | 180 | 155 | 22 | 3 | 8-18 | 170 | 160 | 260 | 410 | 1170 | |
| 150 | 100 | 285 | 240 | 210 | | 24 | 3 | | 8-23 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 275 | 430 | 1240 | |
| A37H-25 A43H-25 | 50 | 25 | 165 | 125 | 100 | | 20 | 3 | | 4-18 | 32 | 140 | 100 | 78 | 18 | 2 | 4-18 | 115 | 110 | 165 | 235 | 547 |
| 80 | 40 | 200 | 160 | 135 | | 22 | 3 | | 8-18 | 50 | 165 | 125 | 100 | 16 | 3 | 4-18 | 135 | 120 | 190 | 285 | 795 | |
| 80 | 50 | 200 | 160 | 135 | | 22 | 3 | | 8-18 | 65 | 185 | 145 | 120 | 18 | 3 | 4-18 | 140 | 130 | 205 | 310 | 835 | |
| 100 | 65 | 230 | 190 | 160 | | 24 | 3 | | 8-23 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 160 | 135 | 255 | 355 | 890 | |
| 125 | 80 | 270 | 220 | 188 | | 28 | 3 | | 8-26 | 100 | 220 | 180 | 155 | 22 | 3 | 8-18 | 170 | 160 | 260 | 410 | 1170 | |
| 150 | 100 | 300 | 250 | 218 | | 30 | 3 | | 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 275 | 430 | 1240 | |
| A37H-40 A43H-40 | 50 | 25 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 32 | 140 | 100 | 78 | 16 | 2 | 4-18 | 115 | 110 | 165 | 235 | 547 |
| 80 | 40 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 50 | 165 | 125 | 100 | 16 | 3 | 4-18 | 135 | 120 | 190 | 285 | 795 | |
| 80 | 50 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 65 | 185 | 145 | 120 | 18 | 3 | 4-18 | 140 | 130 | 205 | 310 | 835 | |
| 100 | 65 | 235 | 190 | 160 | 150 | 24 | 3 | 4.5 | 8-23 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 160 | 135 | 255 | 355 | 890 | |
| 125 | 80 | 270 | 220 | 188 | 176 | 28 | 3 | 4.5 | 8-26 | 100 | 220 | 180 | 155 | 22 | 3 | 8-18 | 170 | 160 | 260 | 410 | 1170 | |
| 150 | 100 | 300 | 250 | 218 | 204 | 30 | 3 | 4.5 | 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 275 | 430 | 1240 | |
| A38Y-16C | 50 | 20 | 165 | 125 | 100 | | 20 | 3 | | 4-18 | 40 | 150 | 110 | 85 | 16 | 3 | 4-18 | 198 | 100 | 165 | 225 | 636 |
| 80 | 32 | 200 | 160 | 135 | | 20 | 3 | | 8-18 | 65 | 185 | 145 | 120 | 20 | 3 | 4-18 | 230 | 120 | 190 | 265 | 817 | |
| 100 | 40 | 220 | 180 | 155 | | 22 | 3 | | 8-18 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 293 | 140 | 265 | 265 | 921 | |
| 150 | 80 | 285 | 240 | 210 | | 24 | 3 | | 8-23 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 320 | 175 | 250 | 420 | 1097 | |
| A38Y-25 | 50 | 20 | 165 | 125 | 100 | | 20 | 3 | | 4-18 | 40 | 150 | 110 | 85 | 16 | 3 | 4-18 | 198 | 100 | 165 | 225 | 636 |
| 80 | 32 | 200 | 160 | 135 | | 22 | 3 | | 8-18 | 65 | 185 | 145 | 120 | 20 | 3 | 4-18 | 230 | 120 | 190 | 265 | 817 | |
| 100 | 40 | 230 | 190 | 160 | | 24 | 3 | | 8-23 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 293 | 140 | 265 | 265 | 921 | |
| 150 | 80 | 300 | 250 | 218 | | 30 | 3 | | 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 320 | 175 | 250 | 420 | 1097 | |
| A38Y-40 | 50 | 20 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 40 | 150 | 110 | 85 | 16 | 3 | 4-18 | 198 | 100 | 165 | 225 | 636 |
| 80 | 32 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 65 | 185 | 145 | 120 | 20 | 3 | 4-18 | 230 | 120 | 190 | 265 | 817 | |
| 100 | 40 | 235 | 190 | 160 | 150 | 24 | 3 | 4.5 | 8-23 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 293 | 140 | 265 | 265 | 921 | |
| 150 | 80 | 300 | 250 | 218 | 204 | 30 | 3 | 4.5 | 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 320 | 175 | 250 | 420 | 1097 |




















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