锅炉房蒸汽阀门可能产生的缺陷及其危害

Possible deficiencies and harmness existed in stream valve of the boiler room

蒸汽阀门不是指内螺纹联接的小型阀门特指规格≥DN150mm的法兰蒸汽阀门,包括截止阀、单向阀和闸阀等。

The steam valve mentioned here is not intemal thread linked small valve, but flange steam value whose standard are not less than DN150mm comprised cut - off valve, unilateral valve and gate valve etc.