Ob daim pob valveyog ib qho kev xaiv nrov hauv ntau daim ntawv thov kev lag luam thiab kev lag luam, tshwj xeeb tshaj yog thaum tswj cov kua dej ntws. Cov li qub no yog ib qhohom lub valve ib feem plaubuas siv lub pob uas khoob, muaj qhov, thiab tig los tswj cov dej ntws, cua, roj, thiab ntau yam kua dej. Rau ob daim pob valve, PVC yog cov khoom siv dav dav vim nws ruaj khov thiab tiv taus xeb.

Lub luag haujlwm ntawm lub pob valve ob daim yog yooj yim tab sis ua tau zoo. Thaum lub tes tuav ntawm lub valve tig, lub pob hauv lub valve tig los tso cai lossis tiv thaiv cov kua dej ntws. Qhov no ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau kev tswj hwm qhov ntws kom meej. Lub pob valve ob daim kuj tsim los kom yooj yim rau kev saib xyuas thiab kho, ua rau nws yog qhov kev daws teeb meem pheej yig rau ntau lub lag luam.

Rau PVC ob daim pob valve, cov khoom siv no muaj ntau yam zoo. PVC (lossis polyvinyl chloride) yog cov khoom siv thermoplastic uas paub txog nws cov tshuaj tiv thaiv zoo heev, ua rau nws zoo tagnrho rau cov ntawv thov uas cov valve sib cuag nrog ntau yam kua dej. Tsis tas li ntawd,PVC yog lub teeb yuag thiab yooj yim rau nruab thiab tuavNws kuj tseem ruaj khov heev, ua rau nws yog qhov kev xaiv ntev thiab txhim khu kev qha rau ob daim pob valve.

Ib qho ntawm cov haujlwm tseem ceeb ntawm lub pob valve ob daim yog los muab kev kaw nruj. Kev tsim ntawm lub valve tsim kom muaj kev sib khi ruaj ntseg thaum kaw, tiv thaiv kev xau ntawm cov kua dej tswj. Qhov no yog qhov tseem ceeb hauv cov ntawv thov uas qhov xau kim lossis txaus ntshai. Cov khoom siv PVC siv rau hauv lub pob valve ob daim ua kom lub valve tseem kaw nruj rau lub sijhawm ntev, txawm tias thaum raug cov tshuaj lom neeg hnyav lossis kub heev.

Lwm yam tseem ceeb ntawm lub pob valve ob daim yog lub peev xwm los tswj cov dej ntws. Los ntawm kev tig lub tes tuav, qhov ntws tuaj yeem hloov kho kom tau raws li qhov xav tau tshwj xeeb ntawm daim ntawv thov. Qib kev tswj hwm no yog qhov tseem ceeb hauv ntau yam lag luam, los ntawm cov chaw kho dej mus rau cov chaw kho tshuaj. Cov khoom siv PVC siv rau hauv ob daim pob valve ua kom ntseeg tau tias lawv tuaj yeem ua tau raws li qhov xav tau ntawm ntau yam kev siv.

Cov pob valve ob daim kuj muaj qhov zoo ntawm kev yooj yim rau kev rhuav tshem thiab kev saib xyuas. Qhov no yog qhov tseeb tshwj xeeb rau PVC ob daim pob valve, qhov twg cov khoom siv lub teeb yuag thiab ruaj khov ua rau kev saib xyuas thiab kho cov haujlwm yooj yim thiab tsim nyog tus nqi. Qhov no, ua ke nrog nws lub kaw lus kaw thiab tswj kev ntws, ua rau PVC ob daim pob valve yog qhov kev xaiv txhim khu kev qha thiab siv tau rau ntau yam kev siv.

Hauv kev xaus lus, lub luag haujlwm ntawm lub pob valve ob daim (tshwj xeeb yog ib daim ua los ntawm PVC) yog los muab kev kaw nruj, tswj cov dej ntws, thiab yooj yim rau kev saib xyuas. Thaum tswj cov dej ntws, cua lossis tshuaj lom neeg, lub pob valve ob daim yog qhov kev xaiv ntau yam thiab txhim khu kev qha rau ntau yam lag luam. Nws txoj kev tsim qauv yooj yim tab sis ua tau zoo ua ke nrog cov txiaj ntsig ntawm cov khoom siv PVC ua rau nws yog qhov kev daws teeb meem zoo tshaj plaws rau ntau yam kev siv.