Dab tsi yog qhov sib txawv ntawm pre-many ua valve thiab delete valve?
Ib lub valve-nkaus valve, kuj hu ua pre-action valve installation, yog ib qho cuab yeej siv nyob rau hauv kev ua tua hluav taws ua ntej tua hluav taws. Nws yog tsim los tiv thaiv cov dej los ntawm kev nkag mus rau cov kais tsuag dej kom txog thaum hluav taws tau kuaj pom. Thaum hluav taws kub tau hnov, lub hom phiaj ua ntej ua haujlwm tau qhib, cia cov dej ntws mus rau cov roj hmab yog tias kub nce siab txaus qhib lawv. Cov kab ke no txo qis kev pheej hmoo ntawm cov dej puas tsuaj vim muaj kev ua kom muaj kev sib tsoo thiab ua kom cov dej tsuas yog tso tawm nyob rau hauv cov hluav taws uas paub tseeb. Pre-nqis tes ua li qub feem ntau yog siv nyob rau hauv cov cheeb tsam uas muaj kev puas tsuaj dej yuav ua rau muaj kev puas tsuaj tshwj xeeb, xws li chav tsev khaws khoom, thiab chav tsev siv computer.
Ntawm qhov tod tes, ib lub valve tshem tawm yog ib qho chaw siv dej tsis siv neeg tswj hwm lub valve siv hauv kev tiv thaiv hluav taws kub. Nws ua haujlwm los ntawm kev qhib sai kom muaj dej ntws loj rau hauv cov kais tsuag dej thaum ua kom tau. Cov khoom siv dej nyab feem ntau yog feem ntau ua rau hluav taws nrhiav kom pom cov hluav taws, xws li cov kuaj pom pa taws lossis cov kuaj cua sov. Tsis zoo li cov khoom ua ntej ua ntej, dej ntshiab tsis muaj cov kais tsuag dej uas yuav tsum tau mus txog qhov kub kom qhib; Hloov chaw, tag nrho cov kab ke yog dej nyab nrog dej ib zaug cov hluav taws xob deluge tau qhib kom tau. Qhov no ua rau dej ntshiab tshwj xeeb rau cov chaw muaj kev phom sij uas yuav tsum muaj cov tshuaj tua hluav taws xob, xws li cov chaw ntim tshuaj cia thiab cov khoom siv tshuaj lom neeg.
