Qhov sib txawv tseem ceeb ntawm lub ntiaj teb valve thiab lub diaphragm valve nyob hauv lawv cov txheej txheem sealing. Lub ntiaj teb valve tswj ntws los ntawm kev quab yuam lub valve disc tiv thaiv lub rooj zaum valve, ua rau nws haum rau nruab nrab mus rau siab siab daim ntawv thov kev cai. Lub diaphragm valve, ntawm qhov tod tes, siv lub diaphragm hloov tau los cais cov khoom siv hluav taws xob los ntawm nruab nrab, ua tiav xoom xau. Nws yog tshwj xeeb tshaj yog haum rau corrosive los yog particulate xov xwm, tab sis muaj qis zog kuj.
A ntiaj teb valve's qhib thiab kaw lub ntsiab yog hlau valve disc, uas yog txav vertically nce thiab nqis raws li lub rooj zaum ntawm lub valve qia. Nws tso siab rau sab nraud quab yuam los nias lub sealing nto kom ua tiav kaw -tawm. Nws muaj kev sib khi zoo thiab muaj peev xwm ua tau zoo, thiab tau siv dav hauv nruab nrab mus rau qhov siab siab xws li chav dej, dej, thiab roj kav dej, suav nrog cov kav dej thiab cov kav dej petrochemical.
Vim nws qhov yuam kev sealing qauv, lub siab yuav tsum tau kaw, ua rau muaj kev pheej hmoo ntawm packing seal hnav, thiab nws kuj muaj cov kua dej ntau dua. Cov hom muaj xws li ncaj-los ntawm, kaum sab xis, thiab ncaj qha- hom ntws, txhawb nqa phau ntawv, hluav taws xob, thiab pneumatic actuation txoj kev.
A diaphragm valve's kaw lub ntsiab yog ib tug saj zawg zog roj hmab los yog yas diaphragm, uas yog nias tawm tsam lub valve lub cev weir los yog ntws channel los ntawm ib tug compression ntaus ntawv mus cuag qhib thiab kaw. Nws qhov txiaj ntsig zoo tshaj plaws yog tias lub tshuab ua haujlwm tau raug cais tawm ntawm qhov nruab nrab, tsis txhob ntim cov khoom xau thiab valve qia corrosion. Nws yog haum rau corrosive los yog siab - daim ntaub ntawv huv si xws li cov kua qaub muaj zog, muaj zog alkalis, thiab slurries, nrog rau cov tshuaj, khoom noj khoom haus, thiab tshuaj industries.
Diaphragm li qubmuaj cov qauv yooj yim thiab yooj yim los tswj; Kev hloov diaphragm tuaj yeem ua tiav sai ntawm -site. Txawm li cas los xij, vim muaj kev txwv ntawm cov khoom siv, lawv feem ntau tsuas yog haum rau qis - siab (feem ntau Tsawg dua lossis sib npaug li 0.6MPa) thiab nruab nrab - txog - qhov kub thiab txias, thiab tsis haum rau siab - siab lossis siab - qhov kub thiab txias.
Factory Direct: API 602 Globe Valves thiab Sanitary Diaphragm Valves.Tau txais ib daim Quote.
Core Mechanical & Operational Features
| Parameter | Globe Valve | Diaphragm Valve |
| Motion Type | Tawm(Caj txav disc vertically) | Tawm(Stem presses ib daim nyias nyias) |
| Flow Path Design | S-zoo li tus / Tortuous(Internal tig) | Weir -type(Bridge) lubNcaj nraim -los ntawm |
| Sealing Mechanism | Disc tiv thaiv lub rooj zaum hlau / mos | Flexible diaphragm tiv thaiv lub cev los yog lub cev |
| Kev rho tawm qia | Tsis cais(Stem contacts media) | Siab cais(Keeb yeej tsis kov xov xwm) |
| Flow Resistance | Siab heev(Qhov tseem ceeb poob siab) | Tsawg rau Nruab Nrab(Kev poob siab poob qis) |
| Throttling Muaj peev xwm | Superior(High precision) | Zoo (tsuas yog cov khoom siv diaphragm) |
| Flow Direction | Unidirectional(Low-rau-siab) | Bidirectional(Nyob rau hauv feem ntau designs) |
Technical Specifications & Kev txwv
| Parameter | Globe Valve | Diaphragm Valve |
| Qib Siab | Siab heev(Txog Chav Kawm 2500) | Tsawg(Feem ntau tsawg dua lossis sib npaug rau Chav Kawm 150 / 16 Bar) |
| Kub | Siab heev(Hlau-rau- rooj zaum hlau) | txwv(Los ntawm roj hmab / yas diaphragm) |
| Sealing Tightness | Siab (Bubble-nruj nrog cov rooj zaum mos) | Hermetic(zero leakage to cua) |
| Qhov Loj | DN15 - DN400 (feem ntau) | DN15 - DN300 (feem ntau) |
| Kev Pabcuam Lub Neej | Ntev (hlau qhov chaw) | Nruab Nrab (Diaphragm yog ib feem hnav) |
| Cavitation Risk | Siab hauv siab ΔPΔP |
Kev pheej hmoo qis dua |
Media & Service Suitability
| Parameter | Globe Valve | Diaphragm Valve |
| Chav / Kub Kub | Zoo heev(Boiler pub, chav kab) | pluag(High temp ua rau diaphragm) |
| Cov tshuaj corrosive | Nruab Nrab (Yuav tsum muaj cov khoom kim heev) | Zoo heev(Lub cev / Diaphragm tuaj yeem ua kab) |
| Slurries / Khoom | pluag(Cov khoom ntxiab hauv S- txoj kev) | Zoo heev(Txoj cai-los ntawm hom) |
| Sanitary / Bio-Pharm | Poor (Dead spaces trap bacteria) | Superior(Aseptic, yooj yim los ntxuav / CIP) |
| Cov kua dej txaus ntshai | Risk ntawm qia to | Muaj kev nyab xeeb(Cov qia cais tiv thaiv kom tsis txhob ntws tawm) |
GNEE Globe valve thiab diaphragm valve Hoobkas
FAQ
Dab tsi yog qhov tsis zoo ntawm lub diaphragm valve?
- Diaphragm li qub tsis haum rau siv qhov twg qhov kub qis dua -60 lossis ntau dua 450 degrees Fahrenheit.
- Nws kuj tsis haum rau siv nyob rau hauv ib qho kev khiav dej num, qhov twg lub siab ntws yog ntau tshaj 300psi.
- Diaphragm li qub tsis zoo rau siv hauv ntau-tig ua haujlwm.
Lub neej ntev ntawm lub diaphragm valve yog dab tsi?
Cov lus teb tsis yog ib qho -loj- haum-tag nrho- diaphragm valve lifespan hinges ntawm nws hom (kev lag luam vs. huv), nws siv li cas, thiab koj tswj nws zoo npaum li cas. Tab sis ntawm no yog cov xov xwm zoo: Nrog kev saib xyuas kom raug, lub valve zoo tuaj yeem kav ntev5-15 xyoo, thiab qee zaum ntev dua.