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| nominal pressure pn | strength test pressure mpa | air seal test pressure mpa | low pressure seal test (mpa) | suitable media | |||
| 2.5 | 3.75 | 2.75 | (-40 ~ + 80) | ||||
h42n vertical lpg check valve main parts material:
| part name | material |
| body valve cover | carbon steel wcb |
| disc | 25 # nylon 1010 sealing surface |
| flange bolts | 35crmoa |
| flange nut | 35 # |
h42n vertical lpg check valve main dimensions and connection dimensions
| dn | l | d | d1 | d2 | b | f | zd |
| 50 | 140 | 160 | 125 | 100 | 20 | 3 | 4- * 18 |
| 65 | 160 | 180 | 145 | 120 | 22 | 3 | 8- * 18 |
| 80 | 185 | 195 | 160 | 135 | 22 | 3 | 8- * 18 |
| 100 | 210 | 135 | 190 | 160 | 24 | 3 | 8- * 23 |
| 125 | 250 | 270 | 220 | 188 | 28 | 3 | 8- * 25 |
| 150 | 300 | 300 | 250 | 218 | 30 | 3 | 8- * 25 |
| 200 | 380 | 375 | 310 | 278 | 34 | 3 | 12- * 25 |
