Cov txheej txheem kev teeb tsa ntawm npauj npaim valve muaj ob peb kauj ruam tseem ceeb.Kev ntxuav ua ntej kev teeb tsa, kev sib raug zoo, kev kho thiab kev tshuaj xyuas zaum kawg kom pom kev ua haujlwm zoo.
Cov tuam txhab nyob rau sab qab teb yog concentrated nyob rau hauv Jiangsu, Zhejiang, Shanghai cheeb tsam, feem ntau yog tsim hard-sealed rooj vag li qub, thaum lub sab qaum teb yog concentrated nyob rau hauv Beijing, Tianjin, Hebei cheeb tsam, feem ntau tsim mos-sealed rooj vag li qub.
Kab lus no yuav qhia txog ntau hom kev kos li qub thiab kev txiav txim siab rau lawv cov lus qhia kev teeb tsa kom ntxaws.
Hauv qhov kev sib piv zoo no, peb yuav ua tib zoo saib qhov tsim, qhov zoo, qhov tsis zoo thiab kev siv ntawm ob lub valve.
Kab lus no yuav tham txog qhov sib txawv ntawm npauj npaim li qub thiab lub rooj vag li qub hauv kev nthuav dav los ntawm cov ntsiab lus, muaj pes tsawg leeg, tus nqi, durability, ntws tswj, installation thiab txij nkawm.
Yog hais tias cov yeeb nkab clearance yog txwv thiab lub siab yog tsawg, DN≤2000, peb pom zoo wafer npauj npaim valve;Yog tias cov yeeb nkab tshem tawm txaus thiab qhov siab yog nruab nrab lossis qis, DN≤3000, flange npauj npaim valve raug pom zoo.
Yog tias qhov kub thiab txias tshwj xeeb thiab tsis muaj cov khoom loj, koj tuaj yeem xaiv ib qho tag nrho-hlau nyuaj-sealed npauj npaim valve.Txwv tsis pub, thov xaiv tus nqi qis dua ntau txheej sealing npauj npaim valve.
Nyob rau hauv tsab xov xwm no, peb yuav delve rau hauv lub tswv yim ntawm qhov siab tshaj plaws kev ntsuas uas tus npauj npaim valve tuaj yeem tiv taus, thiab kawm txog qhov cuam tshuam ntawm qhov ntsuas siab los ntawm cov yam xws li npauj npaim valve tsim, khoom siv, sealing, thiab lwm yam.
Yog tias qhov kub thiab txias tshwj xeeb thiab tsis muaj cov khoom loj, koj tuaj yeem xaiv ib qho tag nrho-hlau nyuaj-sealed npauj npaim valve.Txwv tsis pub, thov xaiv tus nqi qis dua ntau txheej sealing npauj npaim valve.
Kev sib dhos txheej txheem ntawm npauj npaim valve yog ib txoj kev yooj yim tab sis nyuaj.Tsuas yog thaum txhua kauj ruam ua tib zoo ua kom lub npauj npaim valve ua haujlwm ib txwm.Hauv qab no yog cov lus piav qhia luv luv ntawm cov txheej txheem wafer npauj npaim valve.
Npauj npaim valve kho kho tej zaum yuav txawv nyob ntawm seb hom kev puas tsuaj los yog tsis ua hauj lwm.Nws tuaj yeem muab faib ua kev saib xyuas, kho dav dav thiab kho hnyav.
Lub sijhawm qhib thiab kaw ntawm npauj npaim valve yog cuam tshuam nrog kev ua haujlwm ceev ntawm tus actuator, kua siab thiab lwm yam.
t = (90/ω) * 60,
Lub rooj vag valve yog lub valve siv los qhib thiab kaw-OFF cov dej ntws hauv cov kav dej.Nws qhib lossis kaw lub valve los ntawm kev nqa lub rooj vag kom tso cai lossis txwv cov dej ntws.Nws yuav tsum tau hais tias lub rooj vag valve tsis tuaj yeem siv rau kev tswj hwm kev khiav dej num.
Muaj ntau ntau hom npauj npaim valve disc raws li kev siv ntawm npauj npaim li qub, qhov ntau thiab tsawg ntawm npauj npaim valve rau cov khoom lag luam yog los ntawm DN50-DN600, yog li peb yuav qhia cov valve discs raws li qhov ntau thiab tsawg siv tsis tu ncua.
Dab tsi yog qhov txawv, qhov zoo thiab qhov tsis zoo ntawm npauj npaim valve thiab pob valve?Hauv tsab xov xwm no, peb txheeb xyuas nws los ntawm cov qauv ntawm cov qauv, lub hauv paus ntsiab lus, kev siv thiab kev sib khi.
Tuam Tshoj txoj kev lag luam valve yeej ib txwm yog ib qho ntawm lub ntiaj teb kev lag luam.Hauv kev lag luam loj no, cov tuam txhab twg sawv tawm thiab dhau los ua kaum sab saum toj hauv Suav teb valve kev lag luam?
Nws tsuas yog nyob ntawm theem ntawm kev ntsiag to.Silences check li qub tsuas yog tshem tawm suab nrov thiab txo cov suab nrov.Silent check li qub tuaj yeem tiv thaiv thiab ntsiag to lub suab thaum siv.
xeem siab> nominal siab> tsim siab> ua hauj lwm siab.
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub tshuab hluav taws xob npauj npaim valve yog tsav cov khoom sib kis los ntawm lub cev muaj zog los tig lub valve phaj, yog li hloov cov channel ntawm cov kua hauv lub valve lub cev thiab tswj cov dej ntws.
Raws li kev tshawb nrhiav thiab kev txheeb xyuas, kev xeb yog ib qho tseem ceeb ua rau kev puas tsuaj rau npauj npaim li qub.
Yog li ntawd, kev kho deg txheej ntawm lub valve lub cev thiab lub phaj valve yog qhov zoo tshaj plaws tiv thaiv kev tiv thaiv corrosion nyob rau hauv ib puag ncig sab nraud.
Cov ntsaws ruaj ruaj yog ua los ntawm cov hlau, xws li hlau gaskets, hlau nplhaib, thiab lwm yam, thiab sealing tiav los ntawm kev sib txhuam ntawm cov hlau.Cov ntsaws ruaj ruaj yog tsim los ntawm cov ntaub ntawv elastic, xws li roj hmab, PTFE, thiab lwm yam.
Ntau thiab ntau Suav li qub raug xa tawm mus rau ntau lub tebchaws thoob ntiaj teb, thiab tom qab ntawd ntau tus neeg siv khoom txawv teb chaws tsis nkag siab qhov tseem ceeb ntawm Tuam Tshoj lub valve naj npawb, hnub no peb yuav coj koj mus rau qhov kev nkag siab tshwj xeeb, vam tias tuaj yeem pab peb cov neeg siv khoom.
Kev xaiv ntawm ob hom npauj npaim li qub no nyob ntawm qhov kev xav tau tshwj xeeb ntawm daim ntawv thov, suav nrog qhov chaw txwv, kev xav tau siab, zaus ntawm kev saib xyuas, thiab kev xav txog nyiaj txiag
Raws li daim ntawv txuas flange, lub cev npauj npaim valve feem ntau muab faib ua: wafer hom A, wafer hom LT, ib qho flange, ob flange, U hom flange.
Wafer hom A yog cov xov tsis sib txuas, LT hom 24 "siab tshaj qhov tshwj xeeb loj feem ntau siv lub zog zoo dua U-hom valve lub cev los ua cov xov txuas, qhov kawg ntawm cov kav dej yuav tsum siv LT hom.
Lub V-shaped pob valve yog nta V-zoo li qhov chaw nres nkoj ntawm ib sab ntawm lub hemispherical valve core.
Lub ntws channel qhib ntawm O-puab lub pob valve yog puag ncig, nws cov dej tsis kam yog me me, thiab qhov hloov pauv ceev ceev.
Nyob rau hauv tsab xov xwm dhau los, peb tau tham txog lub rooj vag thiab lub ntiaj teb li qub, hnub no peb tsiv mus rau npauj npaim li qub thiab kos li qub, uas feem ntau siv hauv kev kho dej.
Lub valve yog cov khoom siv tswj cov kav dej.Nws lub luag haujlwm tseem ceeb yog txuas lossis txiav tawm cov kev ncig ntawm cov kav dej nruab nrab, hloov cov kev taw qhia ntws ntawm qhov nruab nrab, kho lub siab thiab ntws ntawm qhov nruab nrab, thiab teeb tsa ntau yam li qub, loj thiab me, hauv qhov system.Ib qho tseem ceeb lav rau kev ua haujlwm zoo ntawm cov yeeb nkab thiab cov khoom siv.
Cov tswj valve ntws coefficients (Cv, Kv thiab C) ntawm cov tshuab sib txawv yog tswj li qub raws li qhov sib txawv ntawm qhov sib txawv, qhov ntim ntawm cov dej ncig hauv ib chav tsev ntawm lub sijhawm thaum lub valve qhib tag nrho, Cv, Kv thiab C muaj. kev sib raug zoo ntawm Cv = 1.156Kv, Cv = 1.167C.Kab lus no qhia txog cov ntsiab lus, chav tsev, kev hloov pauv thiab cov txheej txheem tag nrho ntawm Cv, Kv thiab C.
Lub rooj zaum valve yog ib feem tshem tau hauv lub valve, lub luag haujlwm tseem ceeb yog los txhawb lub valve phaj siab qhib los yog kaw tag nrho, thiab ua lub sealing vice.Feem ntau, txoj kab uas hla ntawm lub rooj zaum yog qhov loj ntawm lub valve caliber.Npauj npaim valve lub rooj khoom siv dav heev, cov khoom siv feem ntau yog mos sealing EPDM, NBR, PTFE, thiab hlau hard sealing carbide khoom.Tom ntej no peb yuav qhia ib tug los ntawm ib tug ...
Kos valve yog hais txog qhov qhib thiab kaw qhov chaw rau lub voj voog ncig thiab tso siab rau lawv tus kheej qhov hnyav thiab kev tshaj tawm siab los tsim kev ua haujlwm los thaiv qhov nruab nrab rov qab ntawm lub valve.Kos lub valve yog lub valve tsis siv neeg, tseem hu ua kos valve, ib-txoj kev valve, tsis rov qab valve lossis kev rho tawm valve.
Wafer check li qubtseem hu ua backflow li qub, backstop li qub, thiab backpressure li qub.Cov hom li qub no tau qhib thiab kaw los ntawm lub zog tsim los ntawm qhov ntws ntawm qhov nruab nrab nws tus kheej hauv cov kav dej, uas yog ib hom tsis siv neeg valve.
Npauj npaim valve vim nws qhov me me thiab cov qauv yooj yim, tau dhau los ua ib qho ntawm feem ntau siv li qub nyob rau hauv kev lag luam, ntau thiab ntau tau siv rau hydroelectric zog, irrigation, lub tsev dej mov thiab kua, municipal engineering thiab lwm yam piping systems, siv rau txiav tawm los yog kho kom haum cov circulating media flow mus siv.Tom qab ntawd npauj npaim valve hauv kev siv cov teeb meem uas xav tau kev saib xyuas thiab kev daws teeb meem rau dab tsi, hnub no peb yuav qhia tshwj xeeb kom nkag siab.
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 tshiab tuaj yeem xav paub, tib yam li lub rooj vag valve, qhov txawv ntawm lawv yog dab tsi
AWWA tus qauv yog Lub Koom Haum American Water Works Association thawj zaug luam tawm cov ntaub ntawv pom zoo hauv xyoo 1908. Niaj hnub no, muaj ntau tshaj 190 AWWA Standards.Los ntawm qhov chaw mus rau qhov chaw cia, los ntawm kev kho mob mus rau kev faib khoom, AWWA Standards npog cov khoom thiab cov txheej txheem cuam tshuam rau txhua qhov chaw ntawm kev kho dej thiab kev muab khoom.AWWA C504 yog tus neeg sawv cev zoo ib yam, nws yog ib hom rubble rooj npauj npaim valve
Qhov loj-loj npauj npaim li qub feem ntau xa mus rau npauj npaim li qub nrog lub cheeb loj dua DN500, feem ntau txuas nrog flanges, wafers.Muaj ob hom kab npauj npaim loj li qub: concentric npauj npaim valve thiab eccentric npauj npaim li qub.
Peb eccentricities ntawm Triple Eccentric Npauj Npaim Valve yog xa mus rau:
Thawj eccentricity: lub valve ncej nyob tom qab lub phaj valve, tso cai rau lub foobhauv Ring kom ze ze ntawm tag nrho lub rooj zaum hauv kev sib cuag.
Qhov thib ob eccentricity: spindle yog tom qab offset los ntawm ib xeeser kab ntawm lub valve lub cev, uas tiv thaiv kev cuam tshuam nrog kev qhib thiab kaw ntawm lub valve.
Peb eccentricity: lub rooj yog offset los ntawm cov kab nruab nrab ntawm lub valve ncej, uas tshem tawm kev sib txhuam ntawm lubdisc thiab lub rooj zaum thaum kaw thiab qhib.
Ob chav eccentric npauj npaim valve muaj npe tom qab nws ob lub qauv eccentric.Yog li dab tsi yog ob chav eccentric qauv zoo li?
Lub thiaj li hu ua ob chav eccentric, thawj eccentric yog hais txog lub valve ncej tawm ntawm qhov chaw ntawm lub sealing nto, uas txhais tau hais tias lub qia yog qab lub valve phaj lub ntsej muag.Qhov eccentricity no ua rau qhov chaw sib cuag ntawm ob lub valve phaj thiab lub rooj zaum valve lub sealing nto, uas ua rau lub hauv paus kov yeej qhov tsis zoo uas muaj nyob rau hauv concentric npauj npaim li qub, yog li tshem tawm qhov muaj peev xwm ntawm sab hauv to ntawm lub sab sauv thiab sab kev sib tshuam ntawm lub valve ncej thiab lub rooj zaum.
Npauj npaim valve, tseem hu ua nrov plig plawg valve, yog ib qho yooj yim qauv ntawm kev hloov kho valve, uas tuaj yeem siv rau hauv cov kav dej tsis tshua muaj siab los kaw cov dej ntws.Tig ib ncig ntawm lub valve ncej kom ua tiav qhib thiab kaw lub valve.
Raws li cov ntaub ntawv sib txawv, nws tuaj yeem muab faib ua wafer npauj npaim valve, lug npauj npaim valve, flange npauj npaim valve, welded npauj npaim valve, ntsia hlau xov npauj npaim valve, clamp npauj npaim valve, thiab lwm yam.Ntawm cov feem ntau siv cov ntaub ntawv sib txuas yog wafer npauj npaim valve thiab lug npauj npaim valve.
Lub pneumatic npauj npaim valve yog tsim los ntawm pneumatic actuator thiab npauj npaim valve.Huab cua actuated npauj npaim valve siv compressed cua raws li lub hwj chim qhov chaw tsav lub valve qia thiab tswj cov kev sib hloov ntawm lub disc nyob ib ncig ntawm lub ncej kom qhib thiab kaw lub valve.
Raws li cov cuab yeej pneumatic tuaj yeem muab faib ua ib leeg-ua yeeb yam pneumatic npauj npaim valve thiab ob-ua yeeb yam pneumatic npauj npaim valve.
Zhongfa Valve yog cov chaw tsim khoom lag luam ntawm npauj npaim valve qhov chaw thiab npauj npaim li qub, tsim nyob rau xyoo 2006, muab cov khoom qub thiab npauj npaim valve yam khoom rau ntau tshaj 20 lub teb chaws hauv ntiaj teb, tom ntej no, Zhongfa Valve yuav tshaj tawm cov ncauj lus kom ntxaws ntawm npauj npaim valve qhov chaw.
Npauj npaim li qub yog ib tsev neeg ntawm lub quarter-tig rotational motion li qub siv hauv cov kav dej, lawv feem ntau yog cais los ntawm kev tsim kho thiab kev sib txuas.ZFA yog ib lub npe nrov wafer npauj npaim valve manufacturers, flange npauj npaim valve manufacturers, thiab lug npauj npaim valve manufacturers nyob Suav teb.
Hom los ntawm kev sib txuas, lawv yog plaub hom.
ZFA Valve's electric butterfly li qubtau muab faib ua ob pawg hauv qab no: qhov nruab nrab npauj npaim li qub thiab eccentric npauj npaim li qub, ntawm cov kab npauj npaim li qub tau muab faib ua wafer npauj npaim li qub, lug npauj npaim li qub thiab flange npauj npaim li qub.
Hluav taws xob npauj npaim li qub yog sib sau los ntawm npauj npaim li qub thiab cov khoom siv hluav taws xob.Nws yog dav siv hauv roj av, tshuaj, hluav taws xob, metallurgy, khoom noj khoom haus, tshuaj, textile, ntawv thiab lwm yam lag luam.Qhov nruab nrab feem ntau yog cov roj av, huab cua, chav dej, dej, dej hiav txwv thiab roj.Lub cev muaj zog ua npauj npaim li qub yog siv los tswj cov dej ntws thiab txiav tawm qhov nruab nrab ntawm cov kav dej.
Peb tuaj yeem muab cov API609 npauj npaim li qub hauv qab no:
Raws li kev sib txuas, peb muajob-flange npauj npaim valve,wafer npauj npaim valvethiablug npauj npaim valve;
Raws li cov khoom siv, peb tuaj yeem muab cov khoom siv hlau, cov khoom siv carbon steel, cov khoom siv steel hlau, cov khoom siv tooj dag, cov khoom siv super duplex steel;
Raws li cov txheej txheem, peb tuaj yeem muab API609 npauj npaim valve nrog lub cev casting thiab vuam lub cev.
PTFE hauv ob sab phlu kuj hu ua fluorine yas lined corrosion resistant li qub, yog fluorine yas molded rau hauv lub puab phab ntsa ntawm cov hlau los yog hlau valve bearing qhov chaw los yog sab nrauv ntawm lub valve puab qhov chaw.Fluorine plastics ntawm no feem ntau suav nrog: PTFE, PFA, FEP thiab lwm yam.FEP lined npauj npaim valve, teflon coated npauj npaim valve thiab FEP kab npauj npaim valve feem ntau yog siv rau hauv cov xov xwm muaj zog corrosive.
Peb wafer npauj npaim li qub yog ua raws li lub thoob ntiaj teb tus qauv ntawm ASTM, ANSI, ISO, BS, DIN, GOST, JIS, KS thiab lwm yam.Loj DN40-DN1200, nominal siab: 0.1Mpa ~ 2.5Mpa, haum kub: -30 ℃ to 200 ℃.
Peb tsuas yog xa tawm mus rau tag nrho 22 lub teb chaws xws li Asmeskas, Russia, Canada, Spain thiab lwm yam.
n cov ntsiab lus ntawm cov khoom siv, stainless hlaunpauj npaim li qubmuaj nyob rau hauv SS304, SS316, SS304L, SS316L, SS2205, SS2507, SS410, SS431, SS416, SS201, Hais txog cov qauv, stainless hlau npauj npaim li qub muaj nyob rau hauv centric thiab eccentric kab.Centric kab stainless hlau npauj npaim li qub feem ntau yog ua los ntawm stainless hlau rau lub cev valve, phaj phaj, thiab ncej, thiab EPDM los yog NBR rau lub rooj zaum valve, Lawv yog tsim los rau kev tswj thiab kev tswj ntawm corrosive media, tshwj xeeb tshaj yog muaj zog acids, xws li sulfuric acid thiab aqua regia.