Raws li cov khoom siv sealing,rooj vag li qubtuaj yeem muab faib ua ob hom: tawv foob thiab mos foob.Dab tsi yog qhov txawv ntawm lub foob pob valve thiab lub foob pob valve:
Hard seal gate valve: Cov ntaub ntawv sealing ntawm ob qhov chaw sib khi yog cov khoom siv hlau, uas yog hu ua "hard seal".Kev kub siab ua haujlwm, hnav tsis kam, zoo mechanical zog xws li: steel + steel;hlau + tooj liab;hlau
+ Graphite;steel + hlau alloy.Cov khoom siv sealing feem ntau yog: 13Cr stainless hlau, cov khoom siv tawv tawv tawv tawv, txau tungsten carbide, thiab lwm yam. Lub sealing nto yog qhov tsis zoo.
Mos foob lub rooj vag valve: khub foob yog ua los ntawm cov ntaub ntawv hlau ntawm ib sab thiab elastic non-metallic cov ntaub ntawv nyob rau sab nraud, uas yog hu ua "soft seal".Lub sealing kev ua tau zoo ntawm hom foob no zoo, tab sis nws tsis tiv taus qhov kub thiab txias, hnav yooj yim, thiab muaj cov khoom siv tsis zoo.Xws li: steel + roj hmab;steel + PTFE, thiab lwm yam txhais tau hais tias ib sab ntawm lub foob yog ua los ntawm cov ntaub ntawv uas tsis tshua muaj hardness.Feem ntau hais lus, lub rooj zaum muag muag yog ua los ntawm cov khoom tsis yog xim hlau nrog qee lub zog, hardness thiab kub tsis kam.Nws muaj kev sib khi zoo thiab tuaj yeem ua tiav xoom xoom, tab sis nws muaj lub neej ntev.Piv nrog rau kev hloov pauv tsis zoo rau qhov kub thiab txias, lub zog foob yog ua los ntawm cov hlau, thiab kev sib khi ua haujlwm tsis zoo, txawm hais tias qee tus neeg tsim khoom thov tias nws tuaj yeem ua tiav xoom xoom.Lub hom phiaj ntawm qhov kev tsim kho ntawm lub qhov rooj kaw qhov muag muag: txhawm rau daws qhov teeb meem ntawm lub rooj zaum valve thiab lub sealing nto ntawm lub valve phaj raug corroded los yog deformed, lub valve phaj tuaj yeem them nyiaj rau lub siab nruj thiab lub siab tsis siv neeg tshuav nyiaj li cas. qhov muag sealing rooj vag valve, thiab daws qhov teeb meem ntawm cov khoom siv sealing yog puas los ntawm kev sib txhuam Qhov teeb meem ntawm lub sealing nto, vim hais tias lub tes tsho sealing ntawm lub rooj vag valve tuaj yeem hloov tau, kev siv lub valve zoo heev.
Kev siv ntau yam ntawm cov mos mos lub rooj vag valve: txoj kab uas hla (p50-p400mm, siab 2.5-4.0MPa, ntau yam dej kub ib txwm tsawg dua 200 ℃).
Lub foob tsis tuaj yeem ua tau raws li cov txheej txheem rau qee cov ntaub ntawv corrosive, thiab lub foob tawv tawv tuaj yeem daws tau nws!
Ob hom seals no tuaj yeem ua tiav rau ib leeg.Nyob rau hauv cov nqe lus ntawm kev nruj, lub foob mos yog qhov zoo, tab sis tam sim no qhov nruj ntawm lub foob tawv tawv kuj tuaj yeem ua tau raws li qhov yuav tsum tau ua!Qhov kom zoo dua ntawm qhov muag foob yog qhov zoo sealing kev ua tau zoo, tab sis qhov tsis zoo yog tias nws yooj yim rau hnub nyoog, hnav, thiab muaj lub neej ua haujlwm luv luv.Lub zog foob muaj lub neej ua haujlwm ntev, tab sis qhov nruj yog qhov phem dua li ntawm cov foob mos.