Cov lus qhia xaiv valve

1. Xaiv lub rooj vag valve

Feem ntau, rooj vag li qub yuav tsum nyiam.Lub rooj vag li qub tsis yog tsuas yog haum rau chav, roj thiab lwm yam xov xwm, tab sis kuj yog rau nruab nrab uas muaj cov khoom granular thiab cov viscosity loj, thiab haum rau qhov cua thiab lub tshuab nqus tsev qis.Rau kev tshaj tawm nrog cov khoom siv, lub rooj vag valve lub cev yuav tsum muaj ib lossis ob qhov purging.Rau qhov nruab nrab qhov kub thiab txias, tshwj xeeb qis qhov rooj valve yuav tsum tau xaiv.

2. Kev piav qhia ntawm lub ntiaj teb valve xaiv  

Globe valve yog tsim rau cov dej tsis kam ntawm cov raj xa dej, uas yog, qhov poob siab tsis suav nrog, thiab kub siab, siab siab nruab nrab cov kav dej lossis cov khoom siv, tsim rau DN < 200mm chav thiab lwm cov kav dej tawm;Cov li qub me me tuaj yeem xaiv lub ntiaj teb valve, xws li rab koob valve, ntsuas qhov ntsuas, ntsuas lub valve, ntsuas ntsuas lub siab, thiab lwm yam. Globe valve muaj cov kev tswj dej ntws los yog kev tswj siab, tab sis qhov kev hloov kho qhov tseeb tsis siab, thiab txoj kab uas hla ntawm cov kav dej yog me me. , yuav tsum xaiv lub ntiaj teb valve lossis throttle valve;Rau qhov nruab nrab muaj kuab lom heev, nws yog qhov tsim nyog los xaiv lub tshuab raj kaw lub ntiaj teb valve;Txawm li cas los xij, lub ntiaj teb valve yuav tsum tsis txhob siv rau nruab nrab nrog cov viscosity loj thiab nruab nrab uas muaj cov khoom yooj yim los nag, thiab nws yuav tsum tsis txhob siv rau lub qhov cua valve thiab lub tshuab nqus tsev vacuum.

3, Btag nrho cov lus qhia xaiv valve 

Pob valve yog tsim rau qhov kub thiab txias, siab siab, viscosity ntawm qhov nruab nrab.Cov pob li qub feem ntau tuaj yeem siv nrog cov khoom raug tshem tawm hauv nruab nrab, raws li cov khoom siv sib khi kuj tuaj yeem siv rau cov hmoov thiab granular media;Puv-channel pob valve tsis haum rau kev khiav dej num, tab sis nws tsim nyog rau lub sijhawm uas yuav tsum tau qhib thiab kaw nrawm, uas yooj yim rau kev ua tiav ntawm kev txiav tawm thaum muaj xwm txheej ceev;Feem ntau nyob rau hauv nruj sealing kev ua tau zoo, hnav, shrinkage channel, qhib thiab kaw kev ua haujlwm sai, kev kub siab txiav tawm (siab sib txawv), tsis tshua muaj suab nrov, gasification tshwm sim, me me kev khiav hauj lwm torque, me me dej kuj nyob rau hauv lub raj, pom zoo kom siv lub pob valve. ;Pob valve yog tsim rau lub teeb qauv, tsis tshua muaj siab txiav tawm, corrosive media;Pob valve los yog kub tsis tshua muaj, qhov nruab nrab cryogenic yog qhov zoo tshaj plaws valve, tsis tshua muaj kub nruab nrab cov kav dej thiab cov cuab yeej siv, yuav tsum tau siv nrog lub valve npog tsis tshua muaj pob valve;Kev xaiv lub pob valve valve lub rooj zaum cov khoom siv yuav tsum lees paub lub pob thiab ua haujlwm nruab nrab, txoj kab uas hla lub pob valve hauv kev ua haujlwm yuav tsum muaj zog ntau dua, DN≥200mm pob valve yuav tsum tau xaiv cov iav iav kis tau tus mob;Fixed pob valve yog tsim rau txoj kab uas hla loj thiab siab dua;Tsis tas li ntawd, lub pob valve siv rau cov txheej txheem ntawm cov ntaub ntawv muaj kuab heev, combustible nruab nrab pipeline, yuav tsum muaj fireproof, anti-static qauv.

4, Throttle valve xaiv cov lus qhia 

Throttle valve yog haum rau nruab nrab qhov kub thiab txias yog qhov tsawg, lub sijhawm siab siab, haum rau qhov yuav tsum tau kho qhov ntws thiab qhov siab, tsis haum rau viscosity thiab muaj cov khoom nruab nrab ntawm qhov nruab nrab, tsis yog qhov sib faib valve.

 

5, Plug valve xaiv cov lus qhia

Plug valve yog tsim rau ceev ceev qhib thiab kaw lub sijhawm, feem ntau tsis haum rau chav thiab kub nruab nrab, rau qhov kub thiab txias, siab viscosity nruab nrab, kuj haum rau nruab nrab nrog tshem tawm hais.

6, Butterfly valve xaiv cov lus qhia

Npauj npaim valve yog tsim rau txoj kab uas hla loj (xws li DN> 600mm) thiab cov qauv luv luv, nrog rau kev xav tau ntawm kev khiav dej num thiab ceev qhib thiab kaw qhov yuav tsum tau ua ntawm lub ntees, feem ntau yog siv rau kub ≤80 ℃, siab ≤1.0MPa dej, roj thiab compressed cua thiab lwm yam xov xwm;Piv nrog lub rooj vag li qub thiab pob li qub, npauj npaim li qub yog tsim rau cov yeeb nkab tshuab nrog lax siab poob siab.

7, Check valve xaiv cov lus qhia

Kos li qub feem ntau haum rau cov xov xwm huv si, tsis yog rau cov xov xwm uas muaj cov khoom siv thiab cov viscosity.Thaum DN≤40mm, siv lifting check li qub (tsuas yog tso cai rau nruab rau kab rov tav pipelines);Thaum DN = 50 ~ 400mm, nws yog qhov tsim nyog los siv lub viav vias lifting kos valve (hauv kab rov tav thiab ntsug raj tuaj yeem ntsia tau, xws li ntsia hauv cov kav dej ntsug, nruab nrab ntws los ntawm qab mus rau saum);Thaum DN≥450mm, yuav tsum tau siv lub pob valve;Thaum DN = 100 ~ 400mm kuj tuaj yeem xaiv lub wafer kos valve;Lub viav vias kos valve tuaj yeem ua los ntawm kev ua haujlwm siab, PN mus txog 42MPa, raws li lub plhaub thiab cov khoom foob tuaj yeem siv rau txhua qhov nruab nrab thiab txhua qhov kev ua haujlwm kub.Qhov nruab nrab yog dej, chav, roj, corrosive nruab nrab, roj, tshuaj, thiab lwm yam. Qhov kev ua haujlwm kub ntawm qhov nruab nrab yog ntawm -196 ℃ thiab 800 ℃.

 

8, Diaphragm valve xaiv cov lus qhia 

Diaphragm valve yog tsim rau kev ua haujlwm kub yog tsawg dua 200 ℃, siab tsawg dua 1.0MPa roj, dej, acidic nruab nrab thiab tshem tawm nruab nrab, tsis haum rau cov kuab tshuaj organic thiab muaj zog oxidant nruab nrab;Abrasive granular nruab nrab yuav tsum xaiv weir diaphragm valve, weir diaphragm valve yuav tsum xa mus rau nws cov yam ntxwv ntws cov lus;Cov kua nplaum nplaum, cov cement slurry thiab nag lossis daus nruab nrab yuav tsum xaiv ncaj nraim los ntawm diaphragm valve;Diaphragm li qub yuav tsum tsis txhob siv rau ntawm lub tshuab nqus tsev thiab cov khoom siv lub tshuab nqus tsev tshwj tsis yog tias tau teev tseg.

Valves sib txawv hauv daim ntawv thov, zaus ntawm kev ua haujlwm thiab kev pabcuam.Txhawm rau tswj lossis tshem tawm txawm tias me me, li qub yog cov cuab yeej tseem ceeb tshaj plaws thiab tseem ceeb tshaj plaws.Kev kawm xaiv lub valve yog qhov tseem ceeb.

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