Dab tsi yog kev siv cov pob valve? Pob li qub yog hom valve tseem ceeb tshaj plaws nyob rau hauv kaum xyoo tsis ntev los no, thiab pob li qub tau siv dav hauv cov kav dej ntev. Txoj kev khiav ntawm qhov nruab nrab ntawm lub pob li qub tsis txwv. Lub siab thiab txoj kab uas hla ntawm lub pob li qub tau siv dav, tab sis kev siv kub yog txwv thiab txwv los ntawm cov khoom siv lub nplhaib sealing. Ncaj-los ntawm pob li qub yog siv los txiav tawm qhov nruab nrab thiab yog qhov siv dav tshaj plaws. Multi-txoj kev pob li qub tuaj yeem hloov pauv qhov ntws ntawm qhov nruab nrab lossis faib nws.
Vim tias qhov tshwm sim ntawm cov pob valve nyuaj, lub siab thiab qhov kub ntawm cov pob li qub tau raug txhim kho zoo heev. Qhov ntsuas kub tau nce ntawm -50 ~ 200 degree rau -200 ~ 450 degree , thiab txawm tias 600 ~ 700 degree . Kev siv siab tau nce los ntawm PN40 rau PN320. Tshwj xeeb, qhov tshwm sim ntawm ntau lub pob li qub tau nthuav dav ntxiv rau kev siv xov xwm ntawm pob li qub.
Tshwj xeeb tshaj yog, qhov loj-ntev pob li qub tau dhau los ntawm lub tswv yim ntawm kev tso tawm thiab cuam tshuam, thiab ntau thiab ntau qhov chaw nres tsheb tau tsim los hloov cov tsoos throttling. Nrog rau txoj kev loj hlob ntawm lub pob valve qauv, kev txhim kho cov ntaub ntawv siv, thiab tshwj xeeb tshaj yog kev txhim kho ntawm cov khoom siv sab hauv, nws txoj kev siv kuj tau nthuav dav ntxiv. Nyob rau hauv lub throttling ntawm cov txheej txheem industries, nws tau tawg lub "dominance" ntawm lub nres valve thiab ua tus ceev tshaj-loj hlob valve nyob rau hauv lub industrial teb ntawm kev tswj li qub. Qhov no yog vim lub pob valve uas tig 90 degree qhib thiab kaw muaj qhov zoo dua li qhov nres valve hauv kev tswj ntws.
1. Tsis zoo li lub nres valve, qhov nres valve qia hla lub ntim thaum qhib thiab kaw, uas ua rau nws yooj yim rau rub lub ntim thiab xau qhov nruab nrab, thiab lub valve qia yog yooj yim rau corrode nyob rau hauv qhov chaw.
2. Vim yog kev txhim kho ntawm cov cuab yeej tsav tsheb thiab cov cuab yeej positioner, tshwj xeeb tshaj yog daim ntawv thov ntawm lub computer-integrated processing system (CTPEM), 90 degree rotation qhib thiab kaw li qub nrog rau cov pob li qub yog qhov tsim nyog rau kev siv hauv kev tswj hwm.
3. Qhov kev hloov kho yog loj. Qhov kev hloov pauv ntawm lub pob valve ntawm tib qhov loj yog 10 mus rau 20 npaug loj dua li ntawm qhov nres valve. Kev tswj hwm ntau ntawm lub pob valve yog ntau tshaj 100: 1.
4. Cov specification ntau yog loj thiab cov series muaj ntau. Nws tuaj yeem siv los tswj ntau yam xov xwm xws li av nkos xov xwm.