1. Ua haujlwm nruab nrab

Raws li cov khoom siv ua haujlwm sib txawv, nws yog qhov tsim nyog los xaiv cov ntaub ntawv uas muaj kev tiv thaiv corrosion zoo. Piv txwv li, yog tias cov khoom siv yog dej ntsev lossis dej hiav txwv, lub valve disc aluminium bronze tuaj yeem xaiv tau; Yog tias cov khoom siv yog cov kua qaub lossis alkali muaj zog, tetrafluoroethylene lossis roj hmab tshwj xeeb tuaj yeem xaiv tau ua cov khoom siv rau lub rooj zaum valve.

2. Ua haujlwm siab thiab kub

roj hmab foob npauj npaim valveyuav tsum tau ua haujlwm li qub hauv qhov siab ua haujlwm thiab qhov kub thiab txias uas tau teev tseg, yog li nws yog qhov tsim nyog los xaiv cov ntaub ntawv uas muaj zog txaus thiab tiv taus kub.

3. Tej yam ib puag ncig

Xav txog cov xwm txheej ib puag ncig uas lub valve nyob, xws li av noo, tshuaj tsuag ntsev, thiab lwm yam, thiab xaiv cov khoom siv tsim nyog. 

4. Cov khoom siv lub cev valve

Cov khoom siv ntawm lub cev valveflange npauj npaim valvesuav nrog grey cast iron, ductile iron, cam khwb cia steel, stainless steel, thiab lwm yam. Ntawm lawv, stainless steel muaj kev ua tau zoo tshaj plaws, tab sis tus nqi kuj siab heev. Yog tias nws nyob rau hauv qhov chaw tsis muaj kev kub ntxhov, kev ua tau zoo ntawm cov khoom siv ductile iron tuaj yeem sib piv rau cov khoom siv hlau cam khwb cia, thiab tus nqi ntawm kev siv cov khoom siv ductile iron qis dua.

5. Cov khoom siv rooj zaum valve

Cov ntaub ntawv ntawm lub rooj zaumlub valve npauj npaim iavsuav nrog roj hmab thiab fluoroplastics. Cov rooj zaum roj hmab siv tau rau hauv cov xov xwm uas muaj kua qaub thiab alkaline tsawg xws li dej, pa dej, thiab roj, nrog kev ua haujlwm zoo sealing; Cov rooj zaum fluoroplastic siv rau hauv cov xov xwm uas muaj corrosive heev.

6. Cov khoom siv ntawm lub pob zeb npauj npaim

Cov ntaub ntawv ntawm lub pob valve uas siv tes ua feem ntau yog cov hlau ductile thiab cov hlau tsis xeb. Qee zaum, txhawm rau kom hloov mus rau qhov chaw nyuaj dua, nws yog qhov tsim nyog los qhwv lub pob valve nrog kua nplaum lossis PTFE.

7. Cov khoom siv ntawm lub qhov (valve shaft)

Feem ntau ntawm lawv yog ua los ntawm cov khoom siv hlau tsis xeb, thiab cov xwm txheej tshwj xeeb tuaj yeem hloov kho raws li qhov xav tau.

8. Cov khoom siv tsav

Muaj ob txoj kev siv tes ua haujlwm tseem ceeb, lub tes tuav thiab lub iav cab. Cov khoom siv tes tuav feem ntau suav nrog hlau cam khwb cia, hlau carbon, hlau tsis xeb, txhuas alloy, thiab lwm yam; Cov khoom siv ntawm lub taub hau iav cab feem ntau yog hlau cam khwb cia.

Hauv kev xaus, qhov kev xaiv zoo ntawm cov khoom sivphau ntawv npauj npaim valveyuav tsum xav txog txhua yam xws li qhov nruab nrab ua haujlwm, siab ua haujlwm thiab kub, tej yam kev mob ib puag ncig, nrog rau cov khoom siv ntawm lub cev valve, lub rooj zaum valve, lub phaj npauj npaim, thiab lub ncej valve. Kev xaiv cov khoom siv kom raug tuaj yeem ua kom muaj kev ua haujlwm ib txwm thiab lub neej kev pabcuam ntawmdej npauj npaim valve.