Kev lag luam xov xwm
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Saib xyuas li qub thiab lawv cov kev ntseeg
Kos rau lub valve yog hais txog lub valve uas nws qhib thiab kaw ib feem yog ib feem ncig lub zog disc, uas ua los ntawm nws tus kheej hnyav los thaiv lub backflow ntawm nruab nrab. Nws yog ib lub valve tsis zoo no feem, tseem hu ua check valve, ib-txoj kev valve, rov qab valve lossis burvation valv ...Nyeem ntxiv -
Rooj vag Valve Cov Lus Taw Qhia thiab Cov yam ntxwv
Lub rooj vag valve yog lub valve uas lub vaj ntxwv uas kaw (rooj vag) hloov chaw raws tus nruab nrab ntawm cov channel ntawm cov channel. Lub rooj vag valve tsuas yog siv rau kev qhib tag nrho thiab kaw tag nrho hauv cov raj dej, thiab tsis tuaj yeem siv rau kev hloov kho thiab throttling. Rooj vag valve yog ib lub valve wit ...Nyeem ntxiv