Isixhobo: UPVC

Umbala: luhlaza okwesibhakabhaka

Ujongano: isokethi/umsonto

Umgangatho: uMgangatho weSizwe, uMgangatho waseMelika, uMgangatho waseBrithani

Ukupakisha: Ibhegi ye-OPP eqhelekileyo okanye ukupakisha ibhokisi yombala

Iimpawu eziqhelekileyo zeevalvu zebhola:

1. Ukuxhathisa ulwelo kuncinci, kwaye ivalve yebhola egcweleyo ayinakuchasana nokuhamba.
2. Isakhiwo esilula, ubungakanani obuncinci, kunye nobunzima.
3. Iqinile kwaye ithembekile.Inemigangatho emibini yokutywina, kwaye iiplastiki ezahlukeneyo zisetyenziswa ngokubanzi kumphezulu wokutywina wevalve yebhola okwangoku, enokusebenza kakuhle kokutywina kwaye inokuqonda ukutywinwa okupheleleyo.Ikwasetyenziswa ngokuqhelekileyo kwiinkqubo zokufunxa.
4. Kulula ukusebenza, ukuvulwa ngokukhawuleza kunye nokuvala, kufuneka kuphela ukujikeleza i-90 ° ukusuka ekuvuleni ngokupheleleyo ukuya kuvaliwe ngokupheleleyo, okulungele ukulawula kude.
5. Ukugcinwa kukulungele, isakhiwo se-valve yebhola silula, ikhonkco lokutywina ngokuqhelekileyo lihamba, kwaye kulungele ngakumbi ukuchithwa nokutshintsha.

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