Kev ceev faj rau kev tso chaw thiab kev teeb tsa ntawm qhov nres valve: lub valve yuav tsum tau muab tso rau hauv qhov chaw cua thiab qhuav, thiab nws ob sab yuav tsum tau thaiv. Txhawm rau tiv thaiv lub valve los ntawm xeb thiab tiv thaiv fouling, nws yog ib qho tsim nyog yuav tsum txhuam cov roj los tiv thaiv xeb ntawm nws qhov chaw. Tsis tas li ntawd, cov cim ntawm lub qia valve yuav tsum ua kom tiav thiab meej, thiab cov hlau lead thiab lub hau yog qhov tseem ceeb; Tom qab txhim kho lub ntiaj teb valve, nws yuav tsum tau hloov kho tsis tu ncua, thiab nws yuav tsum tau xyuas seb lub foob puas hnav los yog tsis. Xyuas seb lub sealing nto yog hnav thiab lub valve qia. Yog tias muaj teeb meem saum toj no, lawv yuav tsum tau kho thiab hloov. Tom qab kev hloov pauv, qhov kev sib khi yuav tsum dhau los ua ntej sib dhos.
