Kev ceev faj rau kev txhim kho hluav taws xob nres valve

1. Thaum txhim kho lub valve, xyuam xim rau cov kev taw qhia ntws ntawm qhov nruab nrab thiab nruab nws nruj me ntsis raws li cov lus qhia ntawm lub valve ntws xub.
2. Lub valve tuaj yeem ntsia tau rau ntawm txhua txoj haujlwm ntawm cov kav dej, thiab cov pa roj carbon steel lossis alloy steel li qub tuaj yeem xaiv raws li qhov nruab nrab thiab qhov kub ntawm qhov nruab nrab.
3. Lub qhov hluav taws xob nres valve yuav tsum tau muab tso rau ntsug kom ntau li ntau tau, nrog rau lub valve qia taw rau sab saud.