Tighten packing nut lightly if leaks occur around stem.
如果阀杆周围出现泄漏，则轻轻紧固压紧螺母。
The upper set of wrench flats belong to the packing nut, which is threaded into the valve body.
扳手面上面的那个属于衬垫螺母，它是通过螺纹旋进阀体的。
The leaks can usually be fixed by depressurizing the valve outlet and retorquing the packing nut.
通常可以通过对阀门排气口减压和重新调整衬垫螺母来阻止泄漏。
The leaks can usually be fixed by depressurizing the valve outlet and retorquing the packing nut.
通常可以通过对阀门排气口减压和重新调整衬垫螺母来阻止泄漏。
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