Hauv cov txheej txheem dej kub, cov li qub yuav tsum tsis tsuas yog tswj cov kua dej kom zoo tab sis kuj tuaj yeem tiv taus qhov kub thiab txias, thiab tiv thaiv corrosion thiab to. Xaiv cov khoom siv valve haum rau cov kav dej kub tuaj yeem ua kom muaj kev nyab xeeb thiab kev ua haujlwm ntev ntawm lub cev, yog li cov khoom siv li cas siv rau cov kav dej kub?
Ua ntej tshaj plaws, stainless hlau yog cov khoom siv dav dav thiab siv dav hauv cov dej kub. Stainless hlau muaj kev tiv thaiv corrosion zoo heev thiab zoo txhua yam muaj zog thiab tuaj yeem tswj kev ua haujlwm ruaj khov nyob rau hauv qhov kub thiab txias ib puag ncig. Tsis tas li ntawd, stainless hlau li qub tuaj yeem tiv thaiv corrosion los ntawm cov tshuaj hauv dej, xws li cov zaub mov thiab cov tshuaj ntxiv uas muaj nyob hauv cov dej nyuaj. Yog li ntawd, stainless hlau li qub yog ib qho kev xaiv txhim khu kev qha rau cov kav dej kub uas yuav tsum tau ua haujlwm ruaj khov thiab ua haujlwm ntev.
Thib ob, tooj dag kuj yog cov khoom siv dej kub hauv cov yeeb nkab valve. Brass muaj zoo thermal conductivity thiab processability, uas ua rau nws zoo dua nyob rau hauv manufacturing li qub. Brass li qub feem ntau yog siv rau hauv cov dej kub uas tsis tshua muaj siab lossis nruab nrab-siab, xws li cov dej kub hauv tsev lossis cov kav dej kub me hauv cov tsev lag luam. Txawm li cas los xij, nws yuav tsum raug sau tseg tias tooj dag tuaj yeem deform lossis xau nyob rau hauv qhov kub thiab txias, yog li cov kev ua haujlwm tshwj xeeb ntawm lub kaw lus yuav tsum tau txiav txim siab thaum xaiv.
Ntxiv nrog rau cov hlau tsis muaj hlau thiab tooj dag, cov yas tau maj mam dhau los ua ib qho kev xaiv rau cov kav dej kub li qub. Tshwj xeeb, cov ntaub ntawv xws li polypropylene (PP) thiab polytetrafluoroethylene (PTFE) muaj cov cua kub zoo thiab tshuaj lom neeg ruaj khov thiab tuaj yeem hloov kho rau qee qhov chaw ua haujlwm tshwj xeeb. Cov yas li qub feem ntau yog siv rau hauv cov dej kub uas tsis tshua muaj siab thiab kub kub, xws li cov kav dej kub hauv chav dej hauv tsev lossis cov ntawv thov tshwj xeeb. Lawv qhov zoo yog tias lawv tsis yooj yim rau xeb, hnav thiab pheej yig.