Lub sealing khub ntawm lubntiaj teb valvetuaj yeem siv hlau foob thiab mos foob. Thaum siv cov hlau ntsaws ruaj ruaj, tsis tsuas yog lub sealing kev nyuaj siab yuav tsum siab, tab sis nws kuj yuav tsum tau muaj zog sib xws ntawm txhua sab kom ua tiav qhov yuav tsum tau sealing kev ua tau zoo. Cov kev xav tau no tau ua rau muaj ntau yam kev foob.
Qhov zoo ntawmflat seal ntiaj teb valveyog tias tsis muaj kev sib txhuam thaum qhov chaw sib cuag ze. Yog li ntawd, kev taw qhia ntawm kev kaw tsis yog qhov tseem ceeb, thiab qhov yuav tsum tau ua rau khawb tsis kam ntawm cov khoom siv sealing nto tsis nruj. Nyob rau tib lub sij hawm, thaum lub roundness ntawm sealing nto yog deformed vim cov yeeb nkab kev nyuaj siab, nws yuav tsis cuam tshuam rau lub sealing kev ua tau zoo ntawm sealing nto. Yog hais tias qhov nruab nrab ntws los ntawm lubntiaj teb valve rooj, cov khoom thiab cov sediments nyob rau hauv nruab nrab yuav tsum tau tiv thaiv los ntawm kev puas tsuaj rau lub sealing nto.
