Piv nrog tsoos npauj npaim li qub, kev siv lub tshuab ua hluav taws xob npauj npaim li qub tuaj yeem tsis yog tsuas yog tuaj yeem tswj tau deb, tab sis kuj tseem muaj kev ua haujlwm ruaj khov. Cov ntsiab lus tseem ceeb nyob rau hauv cov txheej txheem tshwj xeeb ob chav eccentric, uas tswj kev ruaj khov ntawm hluav taws xob npauj npaim valve, thiab kev sib khi yog dhau qhov kev txwv ntawm cov tsoos npauj npaim valve. Tsis tas li, qhov ntev npauj npaim ntawm lub pob ntom ntawm lub qhov hluav taws xob npauj npaim valve yog ntim nrog lub graphite compression sealing ntiv nplhaib kom tiv thaiv tus npauj npaim valve los ntawm qhov to. Tsis tas li ntawd, vim hais tias lub npauj npaim hluav taws xob valve yog tsav los ntawm lub zog hluav taws xob, kev ua haujlwm tau zoo dua yog piv nrog phau ntawv tsav. Yog li no, kev ua haujlwm zoo ntawm lub tshuab hluav taws xob valve txhim kho kev tsim khoom ntawm kev lag luam.
