Npauj npaim li qub, raws li cov cuab yeej tseem ceeb hauv kev tswj cov kua dej, tau siv dav hauv cov kav dej vim lawv cov qauv yooj yim thiab qhib thiab kaw sai. Ntau hom npauj npaim li qub muaj qhov sib txawv tseem ceeb hauv kev tsim qauv, kev sib khi ua haujlwm, thiab siv tau rau kev ua haujlwm, cuam tshuam ncaj qha rau lawv cov kev xaiv thiab kev ua haujlwm.
Hais txog hom kev sib khi, mos- foob npauj npaim li qub thiab hlau- foob npauj npaim li qub yog thawj pawg. Mos- foob npauj npaim li qub siv cov ntaub ntawv hloov pauv xws li roj hmab lossis polytetrafluoroethylene ua lawv qhov chaw sib khi, muab kev sib khi zoo heev thiab ua tiav cov nqi xau mus rau xoom. Lawv tshwj xeeb tshaj yog tsim rau cov dej xa dej thiab cov kav dej thiab cov kav dej tsawg - cov kav dej siab uas xav tau kev tshaj tawm siab. Lawv cov khoom sib khi feem ntau siv cov xovxwm- haum kev sib txuas rau lub cev lub cev, ua kom pom kev zoo corrosion ntawm qhov kub thiab txias. Hauv qhov sib piv, hlau- foob npauj npaim li qub siv cov khoom siv hlau xws li stainless hlau thiab carbide rau lawv qhov chaw sib khi. Thaum lawv cov kev ntsuas kev sib khi qis me ntsis, lawv tuaj yeem tiv taus qhov kub thiab txias siab dua, ua tau zoo hauv cov ntawv thov xws li petrochemicals thiab siab - qhov kub thiab txias. Kev hnav-tiv taus ntawm cov hlau foob txuas ntxiv nws lub neej kev pabcuam, tab sis yuav tsum muaj kev saib xyuas tsis tu ncua los xyuas kom muaj kev sib khi zoo.
Cov qauv tsim qauv sib txawv ntxiv subdivide yam khoom. Lub disc axis ntawm lub centerline npauj npaim valve yog nyob rau hauv lub centerline ntawm lub valve lub cev, uas ua rau tsis tshua muaj txaus tsis kam thiab tsis tshua muaj qhib torque, ua rau nws haum rau ceev ceev qhib thiab kaw ntawm loj - txoj kab uas hla, qis - siab pipelines. Eccentric npauj npaim li qub ua tau zoo txo qhov kev sib txhuam poob thaum kaw los ntawm kev hloov qhov chaw txheeb ze ntawm lub disc axis thiab sealing nto. Lawv triple -eccentric tsim ua ke nrog cov hlau foob nrog qis- torque ua haujlwm. Qhov txawv ntawm wafer-hom thiab flange- hom kev sib txuas yog nyob rau hauv kev yooj yim ntawm kev teeb tsa thiab kev ruaj ntseg. Cov qauv wafer yog lub teeb yuag thiab yooj yim rau disassemble, thaum lub flange kev twb kev txuas muab cov yeeb nkab muaj zog txhawb nqa.
Qhov kev xaiv ntawm cov khoom siv ncaj qha cuam tshuam qhov kev siv ntawm lub npauj npaim valve. Cam khwb cia hlau yog kev lag luam thiab siv tau, thiab feem ntau yog siv rau hauv kev lag luam dej. Ductile hlau muab kev txhim kho lub zog thiab corrosion kuj. Stainless hlau tau dhau los ua tus qauv hauv cov khoom noj, tshuaj, thiab marine engineering sectors. Sib piv cov khoom sib khi kuj tseem ceeb heev. EPDM yog haum rau me ntsis acid thiab alkaline ib puag ncig, thaum fluororubber excels nyob rau hauv roj thiab siab - kub kuj. Kev nkag siab zoo ntawm qhov sib txawv no yuav pab cov engineers xaiv cov kev daws teeb meem zoo tshaj plaws npauj npaim valve raws li kev ua haujlwm tshwj xeeb, suav nrog qib siab, qhov kub thiab txias, cov yam ntxwv ntawm kev tshaj tawm thiab lwm yam, yog li ua kom muaj kev nyab xeeb thiab ua haujlwm zoo ntawm cov kav dej.