Pob valve, lub valve uas nws qhib thiab kaw qhov chaw (pob) yog tsav los ntawm lub valve qia thiab tig ib ncig ntawm lub axis ntawm lub pob valve. Nws kuj tseem siv tau rau kev tswj thiab tswj cov kua dej. V-shaped pob valve muaj zog shear quab yuam ntawm V-shaped pob core thiab hlau valve lub rooj zaum nrog nyuaj alloy surfacing. Nws yog tshwj xeeb tshaj yog haum rau cov ntaub ntawv uas muaj fibers thiab cov khoom me me. lwm media. Lub pob valve muaj peev xwm tsis tsuas yog hloov tau yooj yim tswj qhov kev sib tshuam, kev sib txawv, thiab kev hloov pauv ntawm cov xov xwm ntawm lub raj xa dej, tab sis kuj tseem tuaj yeem kaw ib qho channel thiab txuas rau lwm ob txoj kev. Hom valve no feem ntau yuav tsum tau teeb tsa kab rov tav hauv cov kav dej. Cov pob li qub tau muab faib ua pneumatic pob li qub, lub pob hluav taws xob thiab cov pob valve raws li kev tsav tsheb.