Thaum xaiv thiab siv cov khoom siv kos valve, nws yog ib qho tsim nyog yuav tsum muaj kev nkag siab meej ntawm lub hauv paus ntsiab lus ntawm daim tshev valve txhawm rau xaiv qhov tsim nyog kos valve thiab txuas nws lub neej kev pab cuam. Lub hauv paus ntsiab lus ntawm kev ua haujlwmkos valve yog raws li nram no: lub check valve tso cai rau cov kua ntws mus rau hauv ib qho kev taw qhia tshwj xeeb thiab tiv thaiv kom tsis txhob muaj dej ntws rov qab los yog nyob rau hauv qhov kev taw qhia. Qhov zoo tshaj plaws kos li qub yuav tsum pib kaw thaum lub siab poob rau hauv cov yeeb nkab thiab cov kua dej kinetic zog qeeb. Thaum cov kev taw qhia ntawm cov dej ntws rov qab, cov tshev valve yuav tsum raug kaw tag nrho.
- Qhov chawTianjin, Suav teb (Mainland)
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