Valves yog cov khoom tseem ceeb hauv ntau lub tshuab ua kua siv los tswj cov dej ntws thiab siab ntawm cov kua. Qhov kev ua tau zoo thiab lub neej ntawm cov li qub muaj feem cuam tshuam nrog lawv cov ntaub ntawv. Valves ntawm cov khoom sib txawv yog tsim rau ntau qhov chaw ua haujlwm thiab cov kua dej. Dab tsi yog cov khoom ntawm li qub? Kab lus no yuav tshawb txog cov khoom siv valve thiab lawv cov yam ntxwv.
1. Stainless hlau
Stainless hlau yog cov khoom siv dav siv dav, thiab nws yog siv hauv 304 thiab 316 qauv. Stainless hlau li qub muaj zoo heev corrosion kuj, oxidation kuj thiab siab zog thiab yog haum rau feem ntau muaj kev lag luam ib puag ncig. Tshwj xeeb tshaj yog nyob rau hauv cov tshuaj thiab zaub mov industries, corrosion kuj ntawm stainless hlau yog ib qho tseem ceeb tshwj xeeb. Nws kuj muaj cov cuab yeej zoo thiab muaj qhov kub thiab txias thiab yog cov khoom siv rau ntau qhov kev thov siab.
2. Carbon hlau
Cov pa roj carbon steel yog lwm yam khoom siv valve, feem ntau yog siv thaum muaj qhov tsis tshua muaj siab thiab tsis kub dhau. Raws li cov ntsiab lus carbon, carbon steel tuaj yeem muab faib ua cov pa roj carbon tsawg, nruab nrab-carbon, thiab high-carbon steel. Tsawg-carbon steel yog pheej yig thiab haum rau cov kav dej dav dav. Cov pa roj carbon monoxide thiab high-carbon steel yog qhov zoo tagnrho rau qee qhov kev lag luam nrog cov khoom hnyav. Txawm hais tias carbon hlau tsis zoo li corrosion resistant li stainless hlau, nws cov corrosion kuj tuaj yeem txhim kho los ntawm txheej los yog lwm yam kev kho mob.
3. Cam khwb cia hlau
Cam khwb cia hlau li qub tau siv dav vim lawv qhov kev ua tau zoo casting thiab tus nqi qis. Cov cam khwb cia feem ntau muaj xws li grey cam khwb cia hlau thiab hlau ductile. Grey cam khwb cia hlau li qub yog tsim rau kev tshaj tawm xws li dej thiab cua, thaum cov hlau nplaum muaj zog dua thiab tawv thiab tsim nyog rau kev ua haujlwm hnyav dua. Cam khwb cia hlau li qub muaj qhov tsis zoo corrosion thiab hnav tsis kam, yog li kev kho ntxiv los tiv thaiv corrosion feem ntau xav tau.
4. tooj dag
Brass li qub feem ntau siv rau hauv tsev thiab kev lag luam cov kav dej vim tias lawv cov khoom siv zoo heev thiab kev tiv thaiv corrosion siab. Brass muaj kev ua haujlwm zoo thiab qaug zog ua haujlwm thiab tsim nyog rau ntau lub sijhawm qis thiab nruab nrab-siab. Brass li qub kuj feem ntau siv rau hauv cov dej haus vim lawv tsis tso cov tshuaj phem.
5. Yas
Yas li qub muaj xws li PVC, CPVC, PPR, thiab lwm yam ntaub ntawv tsim nyog rau cov kua corrosive heev los yog cov ntawv thov uas tsis tshua muaj siab. Cov yas li qub muaj qhov tsis zoo ntawm qhov kub thiab txias thiab tsis zoo rau qhov chaw kub kub.
6. Cov khoom siv hlau
Qee qhov tshwj xeeb li qub xav tau cov khoom siv hlau xws li npib tsib xee alloys thiab titanium alloys. Cov ntaub ntawv alloy no tsis tshua muaj siab corrosion thiab kub-resistant thiab haum rau kev siv nyob rau hauv huab ib puag ncig. Txawm hais tias cov li qub no kim dua, lawv feem ntau hloov tsis tau hauv qhov chaw tshwj xeeb.