Lub compression kos valve nta ib qho kev ruaj ntseg - Hom kev sib txuas, muab cov ntaub ntawv pov tseg zoo tshaj plaws hauv cov tshuab hluav taws xob. Nws yog qhov tshwj xeeb tshaj yog tsim nyog rau high - siab lossis hnyav - Cov haujlwm ua haujlwm uas yuav tsum muaj cov fittings muaj zog. Lub valve no ua kom ntseeg tau txoj kev txhim khu kev qha - Txoj kev hloov pauv, txuas cov khoom siv txuas ntxiv los ntawm kev tswj hwm qhov zoo tshaj plaws.
