Valve valve yog cov khoom siv kev nyab xeeb tsis siv neeg uas tuaj yeem tso tawm hluav taws xob sai sai thaum lub siab dhau los kom tiv thaiv kev tawg. Nws yog kab kawg ntawm kev tiv thaiv tawm tsam Chav Generator cov xwm txheej thiab kuj tseem yog daim ntawv tseem ceeb ntawm cov khoom siv kev nyab xeeb thiab khoom siv. Feem ntau hais lus, ib chav tsim hluav taws xob yuav tsum tau muab ntsia nrog tsawg kawg yog ob qho kev nyab xeeb. Feem ntau hais lus, qhov ntsuas kev nyab xeeb ntawm lub valve kev nyab xeeb yuav tsum tsawg dua qhov muaj peev xwm ntau tshaj ntawm lub tshuab hluav taws xob kom ntseeg tau tias yog qhov thauj tau ntau tshaj plaws.
Kev tu thiab kev tu cev ntawm kev nyab xeeb li qub kuj tseem ceeb heev. Thaum siv, qhov raug thiab rhiab ntawm lub valve kev nyab xeeb yuav tsum tau kuaj xyuas tsis tu ncua nrog cov lus qhia rau kev siv thiab txij nkawm. Yog tias cov cim ntawm tsis ua haujlwm lossis tsis ua haujlwm nyob rau hauv lub valve kev nyab xeeb, nws yuav tsum tau hloov lossis kho kom meej nyob rau hauv lub sijhawm kom ntseeg tau tias kev ua haujlwm zoo ntawm lub tshuab hluav taws xob.
Yog li ntawd, lub valve kev nyab xeeb nyob rau hauv chav tsim hluav taws xob yog ib qho khoom siv tsis tau. Nws tsis yog tsuas yog kab kawg ntawm kev tiv thaiv kom ntseeg tau tias kev nyab xeeb ntawm cov neeg ua haujlwm, tab sis kuj tseem ceeb toom los tiv thaiv kev ncaj ncees thiab ua haujlwm ruaj khov ntawm cov khoom siv. Txhawm rau kom ntseeg tau tias kev ua haujlwm zoo ntawm lub tshuab hluav taws xob, peb yuav tsum them