Iron Soft Seal Gate Valve VS. Ductile Iron Hard Foob Qhov Rooj Valve
Lub qhov rooj qhib lub qhov rooj thiab lub qhov rooj qhov rooj tawv tawv yog cov khoom siv feem ntau siv rau kev tswj thiab cuam tshuam cov dej ntws, ob qho tib si muaj kev sib khi zoo, kev siv ntau yam, thiab yog ib qho ntawm cov khoom lag luam uas cov neeg siv khoom yuav ntau dua. Qee qhov kev yuav khoom novices yuav xav paub, tib yam li lub rooj vag valve, qhov txawv ntawm lawv yog dab tsi?
Lub foob mos yog lub foob ntawm hlau thiab tsis yog hlau, thaum lub foob tawv yog lub foob ntawm hlau thiab hlau. Mos foob lub rooj vag valve thiab nyuaj foob lub rooj vag valve yog cov ntaub ntawv sib khi, lub foob tawv yog precision machined nrog cov khoom siv lub rooj kom ntseeg tau qhov tseeb ntawm qhov haum nrog lub spool (pob), feem ntau stainless hlau thiab tooj liab. Mos foob yog embedded nyob rau hauv lub valve lub rooj sealing khoom yog ib yam khoom uas tsis yog-hlau, vim cov mos sealing cov ntaub ntawv muaj ib tug tej yam kev mob ntawm elasticity, thiab yog li cov txheej txheem precision yuav tsum qis dua lub hard sealing. Hauv qab no coj koj kom nkag siab qhov txawv ntawm qhov muag foob lub rooj vag valve thiab tawv foob rooj vag valve.
Thawj cov ntaub ntawv sealing
1. Ob lub sealing khoom sib txawv. Mos foob rooj vag valve feem ntau yog roj hmab lossis PTFE thiab lwm yam ntaub ntawv. Hard sealing gate valve siv stainless hlau thiab lwm yam hlau.
2. Mos foob: sealing lwm sab ntawm ob sab ntawm cov khoom siv hlau, sab nraud ntawm cov ntaub ntawv elastic non-metallic, hu ua "mos foob". Cov nyhuv sealing ntawm xws li lub rooj vag li qub, tab sis tsis kub siab, yooj yim rau hnav thiab tsim kua muag, thiab cov khoom siv tsis zoo. Xws li steel + roj hmab; steel + PTFE thiab lwm yam.
3. Hard seal: hard sealing thiab sealing ntawm ob sab yog hlau lossis lwm yam ntaub ntawv nruj dua. Xws li lub rooj vag valve sealing tsis zoo, tab sis qhov kub thiab txias tsis kam, hnav tsis kam, thiab cov khoom siv zoo. Xws li steel + steel; hlau + tooj liab; hlau + graphite; steel + hlau alloy; (tseem tuaj yeem siv cam khwb cia hlau, hlau alloy, tshuaj tsuag xim hlau, thiab lwm yam).
Qhov thib ob, txheej txheem kev tsim kho
Kev lag luam tshuab muaj qhov chaw ua haujlwm nyuaj, ntau yam uas muaj qhov kub thiab txias tsis tshua muaj siab, siab tshaj tawm tsis kam, thiab corrosive. Tam sim no, kev txhim kho thev naus laus zis tau coj mus rau qhov nrov ntawm cov rooj sib dhos nyuaj ntawm lub qhov rooj.
Txhawm rau xav txog kev sib raug zoo ntawm cov hlau lub hardness, nyuaj seals valve, thiab muag muag, lub valve phaj yuav tsum tau ua kom sib tsoo kom ua tiav kev sib khi. Lub zog foob lub rooj vag valve ntau lawm lub voj voog yog ntev dua.
Thib peb, kev siv cov xwm txheej
1, mos foob tuaj yeem paub xoom xaim, tawv foob tuaj yeem hloov kho raws li qhov xav tau ntawm siab thiab qis;
2 、 Cov ntsaws ruaj ruaj tuaj yeem xau nyob rau hauv qhov kub thiab txias, yuav tsum tau ua tib zoo saib xyuas kev tiv thaiv hluav taws, thiab cov ntsaws ruaj ruaj yuav tsis xau thaum kub kub. Lub kaw lus kaw thaum muaj xwm txheej ceev yuav siv tau rau hauv kev kub siab, lub foob tsis tuaj yeem siv tau.
3, rau qee qhov corrosive media, lub foob tsis tuaj yeem siv tau, koj tuaj yeem siv lub foob tawv tawv;
4, nyob rau hauv lub ultra-tsawg kub, mos foob cov ntaub ntawv yuav muaj to, hard seal tsis zoo li no;
Plaub, kev xaiv khoom siv rau
Ob theem sealing tuaj yeem ncav cuag rau, feem ntau yog raws li cov txheej txheem nruab nrab, qhov kub thiab txias, thiab lub siab los xaiv lub rooj vag valve. Rau cov xov xwm dav dav uas muaj cov khoom siv los yog abrasive, lossis thaum kub siab tshaj 200 degrees, nws yog qhov zoo tshaj plaws los xaiv ib lub foob tawv. Yog hais tias lub torque ntawm lub kaw-off valve loj, koj yuav tsum xaiv siv ib tug ruaj ruaj lub rooj vag valve.
Tsib, qhov sib txawv ntawm kev pabcuam lub neej
Qhov zoo ntawm cov mos mos yog sealing zoo, qhov tsis zoo yog qhov yooj yim rau kev laus, hnav thiab tsim kua muag, lub neej luv luv. Lub zog sealing kev pab cuam lub neej ntev dua, thiab sealing kev ua tau zoo yog qhov phem tshaj qhov muag muag, ob qho tib si tuaj yeem ua rau ib leeg.
Cov saum toj no yog qhov sib txawv ntawm cov mos mos lub rooj vag valve thiab lub zog foob lub rooj vag valve kev paub sib qhia, Kuv vam tias yuav tuaj yeem pab koj hauv kev yuav khoom.
