A Bellows Sealed Globe Valveyog ib hom globe valve uas siv cov hlau bellows ua nws lub ntsiab sealing. Nws cov khoom tseem ceeb yog cov hlau bellows. Los ntawm kev vuam dov tsis siv neeg, cov bellows tsim cov hlau thaiv hermetic ntawm cov kua nruab nrab thiab huab cua, kom ntseeg tau tias tsis muaj qhov xau ntawm lub valve qia. Qhov kev tsim no tsis yog tsuas yog txhim kho kev ua haujlwm sealing ntawm lub valve tab sis kuj tseem ua rau nws lub neej kev pabcuam ntev dua.
Txoj Cai Ua Haujlwm ntawm Bellows Sealed Globe Valve
Lub hauv paus ntsiab lus ua haujlwm ntawm Bellows Sealed Globe Valve zoo ib yam li lub valve globe txheem. Lub qia valve raug tsav mus rau saum thiab nqis los ntawm lub log tes lossis lub actuator, uas tig mus rau lub valve disc (lossis lub ntsaws) kom qhib lossis kaw lub valve. Thaum lub disc txav mus rau saum toj, cov kua dej tuaj yeem ntws los ntawm lub valve; thaum lub disc txav mus rau hauv qab, nws kaw nruj nreem rau ntawm lub rooj zaum valve, thaiv cov kua dej ntws. Lub bellows ua lub luag haujlwm tseem ceeb hauv cov txheej txheem no, ua kom muaj kev ua haujlwm zoo heev hauv txhua qhov xwm txheej ua haujlwm.
Lub hauv paus ntsiab lus ua haujlwm tuaj yeem faib ua peb theem tseem ceeb:
1. Cov Txheej Txheem Qhib:Thaum lub actuator ua haujlwm, nws tsav lub push-rod, ua rau lub bellows kom axially compress lossis nthuav (deform). Tib lub sijhawm, qhov no tsav lub kaw member (disc/plug). Thaum lub sijhawm no, qhov nruab nrab siab ua rau sab hauv ntawm lub bellows tsim lub xeev tus kheej-balancing.
2. Cov Txheej Txheem Kaw:Kev ua haujlwm rov qab yuav pib dua qhov kaw. Kev vam khom rau ob qho tib si lub zog rov qab los ntawm lub bellows thiab lub siab nruab nrab ua kom muaj kev nruj tag nrho.
3. Kev Ua tiav ntawm kev kaw:Qhov kev tsim tshwj xeeb ntawm kev sib txuas ntawm hlau rau hlau ua tiav cov qauv xoom xau (ANSI/FCI 70-2 Class V).
Cov Cheebtsam Tseem Ceeb ntawm Bellows Sealed Globe Valve
Lub Bellows Sealed Valve yog lub valve tswj hwm uas muaj cov qauv tshwj xeeb, feem ntau yog ua los ntawm cov khoom hauv qab no:
1. Cov Khoom Tseem Ceeb:
• Lub cev valve:Feem ntau yog ua los ntawm cov hlau tsis xeb lossis cov hlau carbon.
• Lub kaus mom:Txuas nrog lub cev valve ntawm flanges lossis threads.
• Kev Sib Dhos Sealing:Nws muaj xws li lub thawv ntim khoom thiab lub sealing gaskets.
2. Cov Cheebtsam Tseem Ceeb:
• Cov khoom siv bellows:Tsim los ntawm kev vuam ntau txheej ntawm cov hlau nyias-phab ntsa.
• Qhov Chaw Txuas ntawm Lub Taub Hau thiab Lub Actuator.
• Tus Tswv Cuab Kaw (Disc/Plug).
Cov yam ntxwv ntawm cov qauv ntawm Bellows Sealed Globe Valve
Tus qauv tsim ntawm Bellows Sealed Globe Valve muaj cov yam ntxwv tshwj xeeb hauv qab no:
1. Tsim Ob Chav Sealing:
Nws muaj ob lub qauv foob uas muaj lub bellows thiab lub qia packing. Txawm tias lub bellows tsis ua haujlwm los xij, lub qia packing tiv thaiv kev xau, ua kom ntseeg tau tias kev sib khi zoo.
2. Kev Tiv Thaiv Kev Xeb:
Cov bellows feem ntau yog ua los ntawm cov hlau tsis xeb, muab kev tiv thaiv corrosion zoo heev rau ntau yam xov xwm.
3. Tsim Lub Neej Ntev:
Cov bellows uas tsim los ntawm hydraulically muaj lub neej ntev ntawm kev qaug zog, muaj peev xwm tiv taus kev qhib thiab kaw ntau zaus.
4. Kev Tiv Thaiv Qia:
Qhov kawg qis ntawm lub bellows yog welded rau lub valve qia, tiv thaiv nws los ntawm kev yaig los ntawm cov kua txheej txheem thiab txuas ntxiv lub neej kev pabcuam ntawm lub qia.
5. Rooj zaum tawv:
Cov nplaim sealing yog welded nrog cobalt-based (Co-based) hard alloy, muab kev tiv thaiv zoo heev, tiv thaiv corrosion, thiab tiv thaiv kev sib txhuam, ua rau lub neej ntev.
Cov Kev Zoo ntawm Kev Siv Tshuab
•Kev Ua Tau Zoo Tshaj Plaws:
Cov hlau bellows tshem tawm tag nrho cov xau ntawm cov kav, ua rau nws zoo tagnrho rau cov khoom lom, cov khoom kub hnyiab, lossis cov khoom huv siab.
•Kev Tiv Thaiv Kev Xeb thiab Kev Hnav:
Lub qia valve raug quenching thiab tempering ntxiv rau qhov chaw nitriding. Cov chaw zaum yog overlay welded nrog cov hlau alloys tawv (piv txwv li, Co-based), tiv taus cov kua corrosive thiab cov khoom tawg.
•Kev Haum Rau Cov Xwm Txheej Hnyav:
Kub ntawm -40 ° C txog 425 ° C, tshwj xeeb tshaj yog haum rau cov roj thermal kub siab (siab qis, kub siab).
•Kev Txij Nkawm Yooj Yim Dua:
Tus qauv tsim ntawm lub bellows txo qhov xav tau hloov cov khoom ntim, txo cov nqi kho mus sij hawm ntev.
Qhov Sib Txawv Ntawm Bellows Sealed Globe Valves Thiab Standard Globe Valves
1. Tsim Qauv Tshwj Xeeb & Kev Ruaj Ntseg Ob Chav
Qhov tshwj xeeb ntawm Bellows Sealed Globe Valve yog nws txoj kev tsim uas tsis muaj qhov xau. Nws paub zoo txog nws lub peev xwm tsis muaj qhov xau thiab kev lees paub ob zaug, nws lav qhov kev nyab xeeb ntawm kev kaw lub qia. Qhov kev tsim no tsim ib lub thaiv hlau ruaj khov ntawm cov kua nruab nrab thiab huab cua los ntawm kev vuam dov tsis siv neeg, kom ntseeg tau tias tsis muaj qhov xau. Nws qhia tau tias muaj kev zoo dua piv rau cov globe valves ib txwm muaj. Yog tias lub bellows tsis ua haujlwm, lub qia ntim ua haujlwm ua lub foob thaub qab, tswj kom tsis muaj qhov xau. Nws cov qauv foob bellows ruaj khov thiab ruaj khov tsis yog tsuas yog ua kom muaj kev ua haujlwm ntawm qia tab sis kuj muab kev ua haujlwm tsis tas yuav saib xyuas.
2. Cov Qauv & Kev Tiv Thaiv Kev Hnav
Lub Bellows Sealed Globe Valve muaj cov qauv tsim nyog uas tsis muaj kev poob dej, txo kev siv hluav taws xob. Lub valve no muaj cov qauv tsim nyog, kev sib khi zoo, kev ua haujlwm zoo heev, thiab qhov zoo nkauj. Qhov tsis muaj kev poob dej txo qhov kev pov tseg hluav taws xob thiab txhim kho kev nyab xeeb ntawm cov khoom siv hauv tsev cog khoom. Nws cov nplaim sealing siv Co-based hard alloy overlay welding, muab kev tiv thaiv kev hnav zoo heev, kev tiv thaiv corrosion, thiab kev tiv thaiv kev sib txhuam, txo cov kev xav tau kev saib xyuas thiab cov nqi. Qhov no ua rau lub neej ua haujlwm ntev dua, txo qhov zaus kho, thiab txo cov nqi ua haujlwm.
3. Kev Tiv Thaiv Kev Xeb Piv Rau Cov Qauv Globe Valves
Lub qia ntawm Bellows Sealed Globe Valve raug quenching thiab tempering ntxiv rau qhov chaw nitriding, ua rau nws muaj kev tiv thaiv corrosion thiab kev sib txhuam zoo heev. Qhov sib piv, lub valve kaw globe txheem (piv txwv li, lub valve globe txheem) kuj muaj qee yam ntxwv. Nws nrov vim muaj qhov zoo xws li kev sib txhuam tsawg thaum qhib / kaw, kev ruaj khov, thiab yooj yim ntawm kev tsim khoom thiab kho. Txawm li cas los xij, nws kuj muaj qee qhov tsis zoo, xws li kev tiv thaiv kua dej siab thiab tsis txaus kev ntseeg siab rau kev sib khi ntev. Zuag qhia tag nrho, lub valve globe txheem tseem yog hom valve siv dav thiab feem ntau ntseeg tau. Txawm li cas los xij, lub valve globe txheem raug kev tsis zoo xws li kev tiv thaiv kua dej siab thiab kev ua haujlwm tsis zoo rau kev sib khi ntev, ua rau lawv tsis zoo dua li Bellows Sealed Globe Valves.
4. Cov txiaj ntsig ntawm daim ntawv thov & kev sib piv
Hauv kev siv hauv kev lag luam, cov teeb meem xau sab nraud uas tshwm sim los ntawm cov qia qub uas ntim rau hauv cov qhov dej txheem yog qhov tshwm sim ntau. Bellows Sealed Globe Valves zoo heev hauv kev siv hauv kev lag luam, zam cov teeb meem xau uas muaj nyob hauv cov qhov dej txheem. Cov xau no yuav muaj cov khoom kub heev, muaj tshuaj lom heev, nplaim taws, tawg, lossis cov xov xwm radioactive, ua rau tsis yog tsuas yog ua rau muaj kuab paug rau ib puag ncig xwb tab sis kuj ua rau raug mob thiab poob khoom. Kev tsim ntawm Bellows Sealed Globe Valve daws qhov teeb meem no tag nrho. Nws cov qauv foob bellows ua rau lub qhov dej tsis tas yuav saib xyuas, txhim kho kev siv hluav taws xob zoo, txhim kho kev nyab xeeb ntawm cov khoom siv tsim khoom, thiab txo cov nqi kho thiab qhov xav tau kev saib xyuas ntau zaus. Yog li ntawd, nws muab ib puag ncig ua haujlwm huv si thiab txo cov nqi saib xyuas, muab kev daws teeb meem uas huv si thiab muaj kev nyab xeeb.
Cov Ntawv Thov ntawm Bellows Sealed Globe Valves
Siv lawv txoj kev ua tau zoo thiab kev ntseeg siab ntawm kev sib khi, Bellows Sealed Globe Valves siv dav hauv ntau yam lag luam suav nrog roj av, tshuaj lom neeg, tshuaj, chiv, thiab kev tsim hluav taws xob, tshwj xeeb tshaj yog hauv cov ntawv thov uas xav tau kev sib khi zoo tshaj plaws.
1. Kev Lag Luam Tshuaj
Hauv kev lag luam tshuaj lom neeg, Bellows Sealed Globe Valves tswj cov dej ntws ntawm cov khoom siv corrosive. Piv txwv li, lub Hoobkas tshuaj siv cov valve no rau kev hloov cov pa roj chlorine. Lub valve siv cov hlau LCB uas tsis kub thiab tsis xeb rau lub cev, nrog rau lub bellows ua los ntawm Hastelloy C-276 thiab PTFE V-ring seals, uas muaj cov qauv dual-seal uas tiv thaiv tau chlorine to.
2. Kev Lag Luam Tshuaj
Kev lag luam tshuaj muaj cov kev cai siab heev rau kev huv thiab kev kaw lub valve. Qhov tsim ob-seal thiab kev tiv thaiv corrosion ntawm Bellows Sealed Globe Valves ua rau lawv yog qhov kev xaiv zoo tshaj plaws. Piv txwv li, ib lub tuam txhab tshuaj siv lawv hauv cov txheej txheem roj thermal. Cov valves no muaj cov qauv tsim zoo tshaj plaws nrog qhov poob siab tsawg. Qhov tsim qauv zoo tso cai rau lub kaw lus ntws nws tus kheej, muab kev ua tau zoo dua li lwm hom globe valve.
3. Kev Lag Luam Fais Fab
Hauv kev lag luam fais fab, Bellows Sealed Globe Valves siv rau hauv cov kav dej thiab cov tshuab boiler kom ntseeg tau tias muaj kev hloov pauv ntawm cov pa dej zoo thiab kev tswj hwm zoo. Piv txwv li, ib lub tuam txhab tsim hluav taws xob siv lawv rau ntawm cov kab dej. Cov valves no tiv thaiv tau cov pa dej xau, txhim kho kev siv hluav taws xob zoo.
4. Kev Lag Luam Khoom Noj & Dej Haus
Cov kev cai huv thiab kev nyab xeeb nruj heev yog cov yam ntxwv ntawm kev lag luam khoom noj thiab dej haus. Kev ua haujlwm sealing thiab kev tiv thaiv corrosion ntawm Bellows Sealed Globe Valves ua rau lawv ua tau raws li cov kev xav tau tshwj xeeb no. Piv txwv li, lub chaw ua npias siv lawv rau kev tswj cov pa thaum lub sijhawm tsim khoom, ua kom muaj ib puag ncig huv thiab muaj kev nyab xeeb.
Kev Txhim Kho thiab Kev Txij Nkawm ntawm Bellows Sealed Globe Valves
1. Kev Ceeb Toom Txog Kev Teeb Tsa
• Kev Teeb Tsa:Nruab lub valve raws li qhov kev taw qhia ntawm cov kua dej, xyuas kom meej tias cov kua dej ntws los ntawm hauv qab mus rau sab saud kom txo qis kev tiv thaiv cov kua dej hauv lub valve.
• Txoj Kev Txuas:Xaiv txoj kev sib txuas uas tsim nyog (piv txwv li, flanged lossis welded) raws li cov xwm txheej ua haujlwm tiag tiag.
• Cov Kev Cai Ib puag ncig:Qhov chaw teeb tsa yuav tsum tsis txhob muaj qhov kub thiab txias, av noo, thiab qhov chaw corrosive kom ntev lub neej kev pabcuam valve.
2. Cov Lus Qhia Txog Kev Txij Nkawm
•Kev Tshuaj Xyuas Tsis Tu Ncua:Tshawb xyuas qhov kev ua haujlwm ntawm lub bellows kom tsis txhob muaj qhov xau.
•Kev Ntxuav thiab Lubrication:Ntxuav lub valve sab nraud tas li thiab muab roj rau lub valve kom tiv thaiv kev xeb thiab lo.
•Kev Kho Mob Thaum Muaj Xwm Ceev:Yog tias pom muaj qhov xau ntawm lub bellows, siv lub gland thaum muaj xwm txheej ceev rau kev kaw ib ntus kom tiv thaiv kev xau ntxiv.
3. Cov Ntsiab Lus Tseem Ceeb Txog Kev Txij Nkawm
• Kev Tiv Thaiv Kev Ua Tsis Tau Zoo:Qhov tawg ntawm lub bellows qaug zog yog qhov ua tsis tiav tseem ceeb; yuav tsum tau kuaj xyuas tas li. Qee cov qauv valve muaj cov cartridges bellows uas hloov tau kom yooj yim dua rau kev kho.
• Kev Haum Xeeb rau Qhov Xwm Txheej:Rau qhov chaw kub siab (piv txwv li, >200°C), muab qhov tseem ceeb rau cov hlau tsis xeb Bellows Sealed Globe Valves kom tsis txhob muaj kev puas tsuaj ntawm cov khoom ntim.
Xaus lus
Cov Bellows Sealed Globe Valves, los ntawm kev siv tshuab sealing tshiab, daws cov teeb meem xau sab nraud ntawm cov valves ib txwm muaj. Lawv ua tau zoo hauv kev ua haujlwm sealing, kev nyab xeeb, thiab kev ruaj khov, ua rau lawv yog hom valve uas raug xaiv ntau zaus hauv cov teb uas xav tau kev siv tshuaj lom neeg thiab lub zog.
Lub sijhawm tshaj tawm: Lub Yim Hli-08-2025