Covpob valvetau tawm hauv xyoo 1950.Nrog rau txoj kev loj hlob sai ntawm kev tshawb fawb thiab thev naus laus zis, kev txhim kho txuas ntxiv ntawm cov cuab yeej tsim khoom thiab cov qauv tsim khoom, hauv tsuas yog 40 xyoo, nws tau tsim sai sai rau hauv pawg valve loj.Hauv cov teb chaws sab hnub poob, kev siv cov pob li qub tau nce zuj zus txhua xyoo.
Pob li qub yog siv dav hauv roj av refining, kav ntev ntev, kev lag luam chemical, papermaking, pharmaceuticals, water conservancy, electric power, municipal administration, steel and other industries, thiab tuav txoj hauj lwm tseem ceeb hauv kev lag luam hauv lub teb chaws.Nws muaj qhov kev ua ntawm rotating 90 degrees, lub cev nqaij qaib yog ib tug kheej kheej, nrog ib ncig ntawm lub qhov los yog channel hla nws axis.
Lub pob valve feem ntau yog siv los txiav tawm, faib thiab hloov cov kev taw qhia ntws ntawm qhov nruab nrab hauv cov kav dej.Nws tsuas yog xav tau tig 90 degrees thiab lub zog me me tuaj yeem kaw nruj nreem.Lub pob valve yog qhov tsim nyog rau kev siv los ua qhov hloov thiab kaw lub valve, V-shaped pob valve.Ntxiv nrog rau kev saib xyuas cov kav dej tsis tu ncua, hluav taws xob li qub yuav tsum tau them nyiaj tshwj xeeb rau cov xwm txheej ib puag ncig uas lawv siv.Txij li thaum lub tshuab hluav taws xob hauv lub valve yog ib qho khoom siv hluav taws xob, nws txoj kev siv tau cuam tshuam zoo heev los ntawm nws qhov chaw siv.Raws li ib txwm muaj, kev saib xyuas tshwj xeeb yuav tsum tau them rau kev siv hluav taws xob pob li qub thiab npauj npaim li qub hauv cov chaw hauv qab no.
Kev faib ua haujlwm
1. Bypass valve: Lub pob valve feem ntau yog qhib los ntawm cov dej zoo li qub, yog li lub bypass valve yog teem rau nias ua ntej, uas yog, ob sab yog ntim nrog dej;
2. Cua valve: thaum sau nrog dej, lub buoy yuav cia li kaw lub valve thaum huab cua raug tshem tawm;thaum ntws tawm, lub buoy yuav raug txo los ntawm nws tus kheej thaum nws yog siv los ntxiv rau huab cua;
3. Lub siab nyem valve: thaum qhib thiab kaw lub valve, tshem tawm cov dej siab ntawm lub valve thiab lub sealing cover kom tsis txhob hnav lub sealing cover;
4. Cov dej phwj tuaj valve: ntws cov dej phwj tuaj hauv qab ntawm lub plhaub pob.
Kev faib tawm kis
1. Pneumatic pob valve
2. Fais pob valve
3. Hydraulic pob valve
4. Pneumatic hydraulic pob valve
5. Electro-hydraulic pob valve
6. Turbine tsav pob valve
