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详细内容
Application | |||||||||
1 | Face to Face is According to JIS-10K | ||||||||
2 | Flange drilled is According to JIS B2212 | ||||||||
Test | |||||||||
Workingpressure | 10K | ||||||||
TestpressureShell | 21.1kgf/cm2 | ||||||||
Seat | 15.0kgf/cm2 | ||||||||
Components | |||||||||
阀体Body | CAST IRON(FC20) | ||||||||
阀座SEAT RING | CAST BRONZE (B62) | ||||||||
阀板DISC | NBR | ||||||||
弹簧SPRING | STAINLESS STEEL (SS304) | ||||||||
阀杆STEM | BRASS(C3771) | ||||||||
Dimensions | |||||||||
DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | ||
| 2'' | 2.5'' | 3'' | 4'' | 5'' | 6'' | 8'' | ||
L | 183 | 200 | 210 | 217 | 255 | 285 | 420 | ||
H | 160 | 170 | 180 | 190 | 220 | 255 | 290 | ||
D | 155 | 175 | 185 | 210 | 250 | 280 | 330 |
JIS-10K日标铸铁消声止回阀的作用是阻止反方向流动,只允许介质向一个方向流动。通常这种阀门是自动工作的,在一个方向流动的流体压力作用下,阀瓣打开;流体反方向流动时,由流体压力和阀瓣的自重合阀瓣作用于阀座,从而切断流动。