Cov lus piav qhia ntxaws txog kev tsim khoom ntawm pob valve

Ua ntej, cov khoom txheem
1.1 Lub cev lub cev thiab cov khoom siv lub kaus mom yuav tsum ua raws li GB / T12229 tus qauv, thiab cov kev faib tawm tseem ceeb yog cam khwb cia hlau, stainless hlau, tooj liab alloy thiab cam khwb cia hlau.
1.2 Cov khoom ntawm lub pob valve yuav tsum ua raws li tus qauv GB / T12230, thiab cov pawg tseem ceeb yog cov hlau cam, stainless hlau, titanium alloy thiab cam khwb cia hlau.
1.3 Cov ntaub ntawv ntawm cov khoom sib hloov thiab cov ntsaws ruaj ruaj yuav tsum ua tau raws li GB12228 tus qauv, thiab cov khoom tseem ceeb yog cov khoom siv kub thiab corrosion-resistant xws li polytetrafluoroethylene, polyimide, fluoroelastomer thiab pentafluoroethylene.
Qhov thib ob, tus qauv loj
2.1 Qhov chaw sib txuas thiab qhov loj ntawm lub valve flange yuav tsum ua raws li tus qauv GB / T9113.
2.2 Tus qauv tsim loj ntawm lub valve yuav tsum ua raws li tus qauv JB / T3595, qhov loj ntawm lub pob valve feem ntau yog DN15 ~ DN2000mm, thiab qib siab feem ntau yog PN1.6 ~ PN42MPa.
2.3 Kev tsim loj ntawm lub plhaub valve thiab cov khoom siv yuav tsum ua raws li JB / T3595 tus qauv.
3. Cov qauv xeem
3.1 The valve pressure test shall conform to the GB/T13927 standard, and the test pressure shall be different for different pressure levels. Generally, the test pressure of the ball valve < PN16MPa is 1.5 times the nominal pressure, and the PN>16MPa yog 1.25 npaug ntawm nominal siab.
3.2 Kev ntsuas lub zog valve yuav tsum ua raws li JB / T3595 tus qauv, uas qhov ntsuas dej siab yuav tsum yog 1.5 npaug siab dua li lub siab nominal.
3.3 Lub valve sealing xeem yuav tsum ua raws li GB / T26480 tus qauv, feem ntau yog kuaj qhov nruj, xau, kub tsis kam ntawm cov khoom sib khi, thiab lwm yam.
Cov saum toj no yog qee cov kev cai dav dav ntawm lub pob valve tsim qauv, thiab kev tsim cov qauv tuaj yeem ua kom muaj kev ntseeg tau thiab kev nyab xeeb ntawm lub pob valve hauv kev siv. Nyob rau tib lub sijhawm, cov tuam txhab lag luam yuav tsum tau teeb tsa cov qauv kev tsim khoom siab dua raws li cov xwm txheej tshwj xeeb thiab cov kev xav tau los xyuas kom meej qhov zoo thiab kev ua haujlwm ntawm li qub.