资讯动态
密封性要求_阀门标准
|
公称通径d mm |
内泄漏≤ c㎡/min |
外泄漏
|
|
3 6 8 |
50
|
应无外泄漏
|
|
10 15 |
100
|
|
|
20 25 |
250
|
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