Feem ntau siv sealing Cheebtsam rau li qub tuaj yeem sib txawv nyob ntawm seb hom valve, nws daim ntawv thov, thiab cov kev cai tshwj xeeb ntawm lub kaw lus. Nov yog qee cov ntaub ntawv nquag siv rau kev sib khi cov khoom hauv li qub:
Roj Hmab (Elastomers):
Nitrile (Buna N): Zoo tiv taus roj, roj, thiab dej. Feem ntau siv rau hauv cov ntawv thov uas tsis tshua muaj siab.
EPDM (Ethylene Propylene Diene Monomer): Zoo heev tiv taus dej, ncu, thiab huab cua. Haum rau ntau qhov kub thiab txias.
Viton (Fluoroelastomer): Kev ua haujlwm siab rau tshuaj, roj, thiab kub kub. Feem ntau siv rau hauv kev thov kev thov.
Neoprene: Lub hom phiaj zoo elastomer nrog rau huab cua, roj, thiab qee yam tshuaj.
Silicone: Resistant mus rau kub, dej, thiab chav. Feem ntau siv rau hauv daim ntawv thov zaub mov thiab tshuaj.
PTFE (Polytetrafluoroethylene):
PTFE paub txog nws cov tshuaj tiv thaiv zoo heev thiab tsis muaj kev sib txhuam. Nws yog siv los ua gaskets, seals, thiab cov ntaub ntawv zaum hauv li qub tuav cov kua dej corrosive.
Graphite:
Graphite yog siv los ua cov khoom ntim rau valve qia ntsaws ruaj ruaj vim nws tus kheej-lubricating zog thiab tsis kam mus rau qhov kub thiab txias.
Hlau Seals:
Mos Hlau Gaskets (piv txwv li, tooj liab, Aluminium): Cov no feem ntau yog siv rau hauv cov ntawv thov kub uas lawv tuaj yeem tsim tau lub foob zoo nyob rau hauv cov xwm txheej hnyav.
Kauv qhov txhab Gaskets: Cov no muaj cov txheej txheem sib hloov ntawm cov hlau thiab cov khoom siv muab tub lim, tsim nyog rau kev siv hluav taws xob siab thiab kub kub.
O-Rings:
O-rings feem ntau yog tsim los ntawm roj hmab lossis elastomeric cov ntaub ntawv thiab siv ntau hom li qub los tsim ib lub foob ntawm qhov chaw ruaj khov thiab txav mus los.
Composite Seals:
Qee qhov kev tsim valve niaj hnub siv cov ntaub ntawv sib xyaw uas sib xyaw ua ke zoo tshaj plaws ntawm ntau yam ntaub ntawv. Cov no tuaj yeem suav nrog roj hmab, PTFE, thiab cov khoom siv hlau.
iav-Reinforced PTFE:
Siv rau hauv cov ntawv thov uas PTFE cov tshuaj tiv thaiv yuav tsum tau ua nrog rau cov khoom siv kho kom zoo dua qub vim qhov kev txhawb zog.
Ceramic Seals:
Siv nyob rau hauv tsis tshua muaj kub-kub thiab abrasive ib puag ncig vim lawv tsis kam mus hnav thiab corrosion.
Plastics thiab Thermoplastics:
Nyob ntawm daim ntawv thov, qee cov thermoplastics tuaj yeem siv rau cov khoom sib khi vim lawv cov kev tiv thaiv corrosion, tsis tshua muaj kev sib txhuam, thiab tshuaj lom neeg sib raug zoo.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev xaiv cov khoom sib khi yog nyob ntawm cov khoom siv xws li cov kua dej, lub siab thiab qhov kub thiab txias, tshuaj lom neeg sib raug zoo, thiab cov kev cai tshwj xeeb ntawm lub valve thiab nws daim ntawv thov. Txawv li qub nyob rau hauv tib lub cev kuj tseem muaj cov khoom sib txawv raws li lawv lub luag haujlwm thiab lub luag haujlwm.
