Covyas pob valveevolved los ntawm lub plug valve.Nws qhov qhib thiab kaw yog ib qho kheej kheej, uas siv tus kheej kheej tig 90 degrees nyob ib ncig ntawm lub axis ntawm lub valve qia kom ua tiav lub hom phiaj ntawm kev qhib thiab kaw.Yas pob valve yog tsim rau kev cuam tshuam ntawm kev thauj mus los nrog corrosive nruab nrab.Raws li cov khoom sib txawv, qhov kub thiab txias ua haujlwm yogPVC0 ℃ ~ 50 ℃, C-PVC 0 ℃ ~ 90 ℃ , PP -20 ℃ ~ 100 ℃ , PVDF -20 ℃ ~ 100 ℃ .Lub pob yas pob valve muaj kev tiv thaiv corrosion zoo heev.Lub nplhaib sealing txais EPDM thiab FKM;nws muaj zoo heev corrosion kuj thiab prolongs lub neej kev pab cuam.Kev hloov pauv hloov tau yooj yim thiab siv tau yooj yim.Plastic pob valve Lub pob valve muaj ob peb cov ntsiab lus to, siab zog, thiab kev sib txuas hom pob valve yog yooj yim rau kev sib sau thiab disassemble.

Yas pob valve tsis yog tsuas yog yooj yim hauv cov qauv, zoo hauv kev sib khi, tab sis kuj me me, lub teeb hauv qhov hnyav, tsis siv cov khoom siv, me me hauv kev teeb tsa loj, thiab me me hauv kev tsav tsheb torque nyob rau hauv qee qhov nominal txoj kab uas hla.Nws yog qhov yooj yim rau kev khiav lag luam thiab yooj yim kom ua tiav qhov qhib thiab kaw nrawm.Ib qho kev loj hlob sai tshaj plaws valve ntau yam hauv kaum xyoo dhau los.Tshwj xeeb tshaj yog nyob rau hauv cov teb chaws tsim xws li Tebchaws Meskas, Nyiv, Lub Tebchaws Yelemees, Fabkis, Ltalis, Sab Hnub Poob, thiab Tebchaws Askiv, kev sivpob li qubyog qhov dav heev, thiab ntau yam thiab ntau siv yog tseem nthuav.

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub pob valve yog ua kom lub valve tsis thaiv lossis thaiv los ntawm kev tig lub valve qia.Qhov hloov yog portable, me me, txhim khu kev qha sealing, yooj yim hauv cov qauv thiab yooj yim hauv kev saib xyuas.Lub sealing nto thiab spherical nto feem ntau nyob rau hauv lub xeev kaw thiab tsis yooj yim eroded los ntawm nruab nrab.Nws yog dav siv nyob rau hauv ntau yam lag luam.

Lub pob valve yog hom tshiab ntawm lub valve uas tau siv dav hauv xyoo tas los no.Nws muaj qhov zoo hauv qab no:

1. Cov dej tsis kam yog me me, thiab nws cov coefficient kuj yog sib npaug ntawm cov yeeb nkab seem ntawm tib qhov ntev.

2. Cov qauv yooj yim, me me thiab lub teeb yuag.

3. Nws yog nruj thiab txhim khu kev qha.Tam sim no, cov khoom siv sealing nto ntawm lub pob valve yog siv dav hauv cov yas nrog kev ua haujlwm zoo, thiab nws kuj tau siv dav hauv lub tshuab nqus tsev.

4. Kev ua haujlwm yooj yim, qhib thiab kaw nrawm, tsuas yog yuav tsum tig 90 ° los ntawm kev qhib siab kom kaw tag nrho, uas yooj yim rau kev tswj chaw taws teeb.

5. Kev saib xyuas yooj yim, cov qauv yooj yim ntawm lub pob valve, lub nplhaib sealing feem ntau txav tau, nws yooj yim rau disassemble thiab hloov.

6. Thaum qhib tag nrho lossis kaw tag nrho, lub sealing nto ntawm lub pob thiab lub rooj zaum valve raug cais tawm ntawm qhov nruab nrab.Thaum qhov nruab nrab dhau mus, nws yuav tsis ua kom yaig ntawm lub valve sealing nto.

7. Nws muaj ntau yam kev siv, nrog txoj kab uas hla ntawm ob peb millimeters mus rau ob peb meters, thiab tuaj yeem siv los ntawm lub tshuab nqus tsev mus rau qhov siab.