Kev Tu Txhua Hnub:
1, qhov chaw ntim khoom valve yuav tsum tau sau tseg tias yuav tsum tau muab cia rau hauv chav qhuav thiab cua, thiab ntsaws ob qhov kawg ntawm txoj kev.
2, lub valve yuav tsum tau kuaj xyuas tsis tu ncua, thiab tshem cov av ntawm nws, smeared nrog anti xeb roj ntawm nws cov nplaim.
3, tom qab kev teeb tsa thiab daim ntawv thov ntawm lub pob valve, nws yuav tsum tau kho dua kom tsis tu ncua nws txoj haujlwm.
4, yuav tsum kuaj xyuas seb lub pob valve puas npog ntawm qhov chaw, thiab kho lossis hloov lossis hloov raws li qhov xwm txheej.
5. Tshawb xyuas qhov hnav ntawm lub xov trapezoidal ntawm cov qia thiab kav txiv ntseej, seb puas yuav tau ntim tawm ntawm hnub dhau los lossis tsis tau, thiab tsim nyog hloov.
6, qhov kev ntsuas lub pob valve yuav tsum tau sim los xyuas kom meej nws cov kev ua haujlwm.
7. Lub qub nyob rau hauv kev ua haujlwm yuav tsum ua kom ruaj khov, bolts ntawm flanges thiab kev txhawb nqa ua tiav, cov xov tsis raug mob, thiab tsis muaj qhov chaw xoob.
8, yog hais tias lub log txhais tes poob, yuav tsum tau muab khi kom nrawm, thiab tsis tuaj yeem hloov los siv ciaj ntswj.
9. Cov kua qaub ntawm lub caj dab yuav tsis pub ua kom tawg lossis tsis muaj qhov ua kom tawv ncauj hauv ntej.
10, yog hais tias lub valve ib puag ncig yog qhov hnyav, muaj qhov tsis huv rau xws li nag, daus, hmoov av, xuab zeb thiab lwm cov av, nws yuav tsum nruab ib lub xov tiv thaiv rau cov qia.
11, lub pas nrig valve yuav tsum tswj xyuas kom tiav, muaj tseeb, meej, ntim, ntsaws ruaj ruaj, lub hau valve.
12. Yuav tsum tsis txhob muaj sag thiab tawg hauv lub tsho insulating.
13, khiav lub valve, zam kev ntaus, lossis txhawb nqa khoom hnyav.
