Cov pob valve ua lub luag haujlwm tseem ceeb hauv lub neej txhua hnub vim lawv siv txhua hnub xws li hauv tsheb kauj vab lossis tsheb, dav hlau lossis txhua yam kev lag luam. Cov valve muaj ntau qhov ntau thiab tsawg thiab duab sib txawv, thiab txhua lub valve muaj qhov loj me, kev ua haujlwm, thiab kev siv sib txawv.

Lub lag luam tau siv ntau yamlub pob valve, thiab kom ntseeg tau tias cov li qub no tseem ua haujlwm tau thaum lub sijhawm ua haujlwm, nws muaj kev nyab xeeb los tswj lawv ua ntej lawv xeb. Kev ntxuav thiab lubrication tsis tu ncua kom ntseeg tau tias nws ua haujlwm tau zoo yog qhov tseem ceeb rau nws lub neej ntev.
Cov li qub no muaj nyob rau hauv tsib lub cev dav dav, suav nrog peb daim, ob daim, ib lub cev nkag sab saum toj, sib cais, thiab vuamcov li qubCov yam ntxwv hauv qab no ua rau lawv yog qhov kev xaiv zoo heev rau kev tswj hwm ntau yam kev siv, thiab qee zaum lawv ua tau zoo dua lwm lub valve uas tsis muaj kev tswj hwm ntau hauv kev siv throttling.

Cov txiaj ntsig ntawm lub pob li qub

Lawv muab cov kev pabcuam tiv thaiv kev xau,
qhib thiab kaw sai,
Piv rau cov qhov rooj vag, lawv me me heev,
Piv rau cov qhov rooj vag, lawv sib dua,
Cov qhov rooj vag lossis lub ntiaj teb valve tsis muaj qhov yooj ywm ntawm ntau tus qauv tsim, yog li nws txo cov naj npawb ntawm cov qhov rooj uas xav tau,
Ua los ntawm ntau qhov ntau thiab tsawg thiab cov duab sib txawv, cov li qub no muab kev ywj pheej xaiv,
Cov li qub zoo muab kev pabcuam zoo nyob rau hauv qhov kub thiab txias thiab siab, thiab
Lawv muaj kev tswj hwm tsawg dua li lwm cov li qub.
Cov kev tsis zoo tseem ceeb ntawm cov valve no yog raws li nram no:

Tig qhov chaw ntawm lub qhov kov ntawm lub valve,
tsis tuaj yeem siv rau kev throttling, thiab
Cov li qub no nrog cov txheej txheem ua haujlwm yuav tsum tau teeb tsa ncaj nraim.
Ntawm Pntek Engineers, peb muaj ntau yam khoom siv valve uas tsim los rau cov neeg siv khoom xav tau, suav nrog cov ball valve uas tsim los nrog cov thev naus laus zis tshiab thiab haum rau kev ua haujlwm tseem ceeb. Peb cov valve yooj yim siv, yooj yim rau kev saib xyuas, tsis tas yuav saib xyuas ntau, zoo thiab tiv taus xeb.