Lub rooj zaum valve yog tus khub sib khi ntawm lub pob valve thiab cov khoom siv ncaj qha txiav txim siab seb lub pob valve puas ua tiav npuas - kaw ntom nti, muaj sia nyob siab - kev pabcuam lub voj voog, lossis ua tsis tiav hauv lub lis piam. Rau cov neeg yuav khoom lag luam, cov chaw tsim khoom lag luam, thiab cov pab pawg OEM, kev nkag siab cov ntaub ntawv lub rooj zaum yog qhov tseem ceeb rau cov lus qhia tseeb, kev pab cuam lub neej, thiab raug nqi raug. Phau ntawv qhia no piav qhia txog qhov sib txawv ntawm PTFE, RPTFE, PEEK, thiab cov rooj zaum hlau, yuav ua li cas kom haum lub rooj rau qhov kub, siab, xov xwm, thiab cov dej xau, thiab yuav ua li cas los ntawm lub chaw tsim khoom valve lub rooj.
Cov ntsiab lus
- Vim li cas Valve Xaiv Qhov Tseem Ceeb
- Lub luag haujlwm ntawm lub rooj zaum hauv lub pob Valve
- PTFE Valve rooj zaum: General -Service Standard
- RPTFE Valve Rooj: Siv zog rau siab thiab caij tsheb kauj vab
- PEEK Valve Rooj: Siab -Tub kub Polymer Performance
- Cov rooj zaum hlau: Rau qhov hnyav thiab hluav taws kub -Kev Pabcuam Zoo
- Kev sib piv ntawm Valve Seat Materials
- Yuav Ua Li Cas Xaiv Txoj Cai Valve Rooj Khoom
- Valve Seat Materials los ntawm Daim Ntawv Thov
- Sib piv lub rooj zaum rau lub pob Valve
- Ua haujlwm nrog tus kws tsim khoom tshwj xeeb Valve Seat
- Cov lus nug nquag
Vim li cas Valve Xaiv Qhov Tseem Ceeb
Nyob rau hauv lub pob valve, lub nplhaib lub rooj zaum nias tawm tsam lub pob valve los tsim lub foob uas nres lossis tswj kev ntws. Lub rooj zaum yog li txiav txim siab peb ntawm qhov tseem ceeb tshaj plaws kev ua tau zoo ntawm lub valve tiav:Kev xau tus nqi, sealing kev ntseeg tau, thiab kev ua haujlwm torque. Xaiv cov khoom siv lub rooj tsis raug thiab txawm tias lub pob valve zoo kawg nkaus yuav xau, hnav, lossis deform ua ntej.
Kev xaiv rooj zaum yog qhov kev txiav txim siab engineering, tsis yog kev xaiv catalog. Txhua lub rooj zaum cov ntaub ntawv muaj lub qhov rais ntsuas kub, tshuaj lom neeg sib xyaw profile, thiab chav dej ntws tuaj yeem ua tiav. Cov neeg yuav khoom uas nkag siab txog cov kev txwv no tuaj yeem hais qhia cov rooj zaum uas haum rau lawv cov kev ua haujlwm thiab zam qhov ua rau muaj feem ntau ntawm qhov tsis ua haujlwm ntxov ntxov: lub rooj zaum muag muag tsis raug.
Key Takeaway
Tsis muaj ib qho khoom siv zoo tshaj plaws ntawm lub rooj zaum valve. Qhov kev xaiv raug yog tsav los ntawm plaub qhov kev ua haujlwm sib txawv -kub, siab thiab cycling lub luag hauj lwm, media chemistry, thiab yuav tsum to taub chav kawm- thiab lub rooj zaum yuav tsum tau txiav txim siab ua ke nrog lub pob valve uas nws kaw.
Lub luag haujlwm ntawm lub rooj zaum hauv lub pob Valve
Lub pob valve ua tiav muaj lub cev lub cev, lub pob valve, lub rooj zaum, lub qia, thiab cov khoom sib khi. Lub pob qhib, kaw, lossis hloov pauv qhov ntws, thaum lub rooj zaum tuav txuas txuas txuas nrog lub pob nto thiab tiv thaiv kom tsis txhob muaj dej. Ob leeg ua hauj lwm ua ib khub: lub pob muab ib tug precision spherical nto, thiab lub rooj zaum conforms rau nws nyob rau hauv siab.
Cov rooj zaum mos mos ua los ntawm PTFE lossis PEEK deform elastically tiv thaiv lub pob kom ua tiav qhov tseem ceeb xoom xoom (Class VI), uas yog vim li cas lawv tau tswj hwm kev pabcuam dav dav thiab tshuaj lom neeg. Cov rooj zaum hlau cia siab rau qhov tseeb geometric ntawm ob qhov chaw es tsis txhob, ua tiav Chav Kawm IV rau V tab sis muaj sia nyob qhov kub thiab txias thiab cov xov xwm abrasive uas rhuav tshem cov polymers. Vim tias kev sib txuas sib txuas yog tsom rau ntawm qhov nqaim, lub pob nto tiav - feem ntauRa 0.2 txog 0.4 µm ntawm precision pob- cuam tshuam ncaj qha rau lub rooj hnav thiab sealing.
PTFE Valve rooj zaum: General -Service Standard
Virgin PTFE yog cov khoom siv lub rooj zaum zoo rau feem ntau - pabcuam pob li qub. Nws muaj nyob ze - tshuaj tiv thaiv thoob ntiaj teb thoob plaws cov kua qaub, alkalis, cov kuab tshuaj, thiab cov hydrocarbons, ua ke nrog cov coefficient qis tshaj ntawm kev sib txhuam ntawm txhua lub rooj zaum. Kev sib txhuam qis txhais tau tiasqis dua kev ua haujlwm torque, smoother actuation, thiab ntev lub rooj zaum, nyob rau hauv ib tug raug kev pab ntau yam ntawm kwv yees li-45℃rau 200 degreenpog dej, huab cua, roj, thiab kev pabcuam tshuaj lom neeg feem ntau.
Qhov paub txog kev txwv ntawm PTFE yog cov dej txias, los yog nkag mus: nyob rau hauv lub siab ruaj khov, los yog nyob rau hauv lub valve sab laug ib nrab qhib rau lub sij hawm ntev, lub rooj zaum maj mam deforms nyob ib ncig ntawm lub pob, sealing kev ntseeg te, thiab torque nce. Cov rooj zaum PTFE yog li ntawd zoo tshaj plaws rau nruab nrab siab, kev caij tsheb kauj vab, thiab cov xov xwm huv si, uas lawv xa cov nqi zoo tshaj plaws - rau - kev ua tau zoo ntawm ib qho kev xaiv lub rooj zaum.
RPTFE Valve Rooj: Siv zog rau siab thiab caij tsheb kauj vab
RPTFE (reinforced PTFE) ntxiv cov fillers - feem ntau 15 mus rau 25% iav fiber ntau, carbon, los yog graphite - rau PTFE matrix. Cov fillers txhim kho compressive zog, seem stability, thiab hnav tsis kam thaum tuav feem ntau ntawm PTFE cov tshuaj compatibility. Lub tswv yim tshwm sim yog lub rooj uasresists txias ntws nyob rau hauv siab dua thiab siab dua cycling lub luag hauj lwm, ncua kev pab cuam lub neej nyob rau hauv automated thiab siab - voj voog li qub mus rau roughly230 degree.
RPTFE yog tus qauv hloov kho thaum lub rooj zaum PTFE ze rau nws cov kev txwv txhua yam: siab - roj av siab, nquag ua haujlwm, lossis ua haujlwm throttled. Nco ntsoov tias iav - puv RPTFE tsis pom zoo rau hydrofluoric acid lossis muaj zog caustics, qhov twg nkauj xwb PTFE tseem yog qhov kev xaiv zoo dua. Rau feem ntau cov kev pabcuam kev lag luam, txawm li cas los xij, RPTFE muaj qhov zoo tshaj plaws ntawm kev sib khi ua haujlwm, ua haujlwm ntev, thiab tus nqi.
PEEK Valve Rooj: Siab -Tub kub Polymer Performance
PEEK (polyether ether ketone) yog lub siab -kev ua haujlwm engineering polymer uas txuas rau lub qhov rais lub rooj zaum polymer mus txog kwv yees li250℃rau 260 degree. Nws muaj zog compressive ntau dua thiab tsis tshua muaj dej txias dua li PTFE, ua rau nws cov polymer ntawm kev xaiv rau cov roj kub, chav, siab - siab roj, thiab siab - voj voog kev pab cuam qhov twg PTFE thiab RPTFE ncav cuag lawv cov kev txwv.
Kev lag luam tawm - tawm yog tus nqi siab dua thiab txo qis tsis kam ua kom muaj zog sulfuric acid thiab muaj zog oxidizing acids. Nyob rau hauv nws lub hnab ntawv sib xws, PEEK muab kev hnav zoo heev, qhov ruaj khov nyob rau hauv kev thauj khoom, thiab cov chav kawm xau piv rau lwm lub rooj zaum muag. Nyob nruab nrab ntawm kwv yees li 200℃thiab 260 degree, nws yog qhov siv tau txuas ntawm polymer thiab hlau sealing, thiab nws nquag teev rau cov tshuab hluav taws xob xav tau qhov kub thiab txias tshaj li PTFE txwv.
Cov rooj zaum hlau: Rau qhov hnyav thiab hluav taws kub -Kev Pabcuam Zoo
Thaum kub tshaj lub qhov rais polymer, cov xov xwm yog abrasive los yog erosive, los yog hluav taws kub - ntawv pov thawj kev nyab xeeb yog yuav tsum tau, cov rooj zaum hlau yog tib txoj kev xaiv. Hlau- rooj zaum siv cov rooj zaum stainless hlau tawv,Stellite overlay, tungsten carbide txheej, los yog HVOF- tsuag tsuag tawvntawm ob lub rooj zaum thiab pob, thiab tuaj yeem ua haujlwm ntawm500℃thiab siab dua. Lawv yog cov qauv hauv refineries, chav mains, slurry tuav, thiab cov txheej txheem kab uas cov rooj zaum mos erodes los yog hlawv nyob rau hauv lub lis piam.
Cov rooj zaum hlau ua tiav cov chav kawm ntawm cov chav kawm IV mus rau V es tsis yog npuas - nruj Class VI ntawm cov rooj zaum mos, thiab lawv xav tau kev ua haujlwm siab dua, yog li qhov ntsuas qhov ntsuas yuav tsum suav rau nws. Cov txiaj ntsig nyiaj tau los yog kev ua haujlwm ntev: lub rooj hlau uas tau teev tseg kom zoo tuaj yeem ua rau lub rooj zaum polymer los ntawm qhov kev txiav txim loj hauv kev pabcuam hnyav.
Kev sib piv ntawm Valve Seat Materials
Cov lus hauv qab no qhia txog cov yam ntxwv tseem ceeb ntawm cov khoom siv lub rooj zaum valve rau thawj -kev xaiv.
| Khoom siv zaum | Hom kub ntau yam | Cov yam ntxwv tseem ceeb | Zoo tshaj rau |
|---|---|---|---|
| PTFE (Virgin) | -45℃rau 200 degree | Universal chemistry, kev sib txhuam qis tshaj, txias ntws hauv qab load | General, tshuaj, dej kev pab |
| RPTFE (kev txhawb zog) | -45℃rau 230 degree | Zoo dua creep thiab hnav tsis kam, zoo sib xws chemistry | Siab -siab, siab - voj voog li qub |
| PEB | -45℃rau 260 degree | Lub zog siab, tsis tshua muaj dej txias, tus nqi siab | Cov roj kub, chav dej, xav tau txoj haujlwm ua haujlwm |
| Devlon / UHMWPE | -50℃rau 177 degree | Siab siab heev, tawv, tsawg torque | High -siab gas, abrasive lub luag hauj lwm |
| Hlau (Stellite, carbide, hardened SS) | Txog li 500℃thiab siab dua | Abrasion resistant, hluav taws kub- nyab xeeb, Chav Kawm IV-V to | Kub kub, slurry, hluav taws kub- kev pabcuam nyab xeeb |
Yuav Ua Li Cas Xaiv Txoj Cai Valve Rooj Khoom
Kev xaiv lub rooj zaum ruaj khov ua raws tsib kauj ruam, ua haujlwm los ntawm kev txiav txim:
- Txhais lub hnab ntawv kub:hauv qab 200℃polymer rooj siv; ntawm 200℃thiab 260℃PEEK yog qhov kev xaiv zoo; saum toj no, cov rooj zaum hlau yuav tsum.
- Ntsuas lub siab thiab lub luag haujlwm cycling:siab thiab nquag actuation thawb nkauj xwb PTFE mus rau txias txaus, yog li hloov mus rau RPTFE los yog PEEK.
- Xyuas media chemistry:PTFE muaj broadest chemistry; iav - puv RPTFE tsis haum rau HF thiab muaj zog caustics; PEEK tau tawm tsam los ntawm cov concentrated sulfuric thiab muaj zog oxidizing acids.
- Txhais cov chav kawm yuav tsum tau xau:npuas- nruj kaw (Class VI) yuav tsum muaj lub rooj muag muag; hluav taws- nyab xeeb, siab- kub, lossis daim ntawv thov abrasive txais lub rooj zaum hlau ntawm Chav Kawm IV txog V.
- Xav txog abrasion thiab particulates:slurry thiab erosive media erodes polymers sai sai, yog li rau lub luag hauj lwm abrasive hnyav txav ncaj qha mus rau cov rooj zaum hlau lossis hnav-cov polymers tiv taus xws li Devlon.
Thaum qhov kub ntawm kev khiav hauj lwm zaum ze rau cov khoom txwv, xaiv cov qib tom ntej; Kev pabcuam hauv chav ua haujlwm tshwj xeeb cuam tshuam nrog kev poob siab, yog li cov npoo ntawm yam tsawg kawg 20℃saum toj kawg nkaus qhov kev txwv yog ceev faj.
Valve Seat Materials los ntawm Daim Ntawv Thov
Daim ntawv thov kev paub qhia cov ntaub ntawv rooj zaum rau kev lag luam tsis tu ncua:
- Roj thiab roj:cov rooj zaum hlau lossis PEEK rau siab - cov kav dej thiab lub qhov dej zoo; RPTFE rau cov dej tsim thiab cov dej num dav dav hydrocarbon
- Kev ua tshuaj lom neeg:PTFE los yog RPTFE rau universal acid thiab hnyav kuj; cov rooj zaum hlau qhov twg kub los yog abrasion tshaj polymer txwv
- Steam systems:PEEK mus txog 260 degree; hlau rooj nrog Stellite tig rau superheated chav
- LNG thiab cryogenic:tshwj xeeb cryogenic PTFE rooj zaum nrog stainless hlau los yog npib tsib xee alloy pob rau txhim khu kev qha qis - kub sealing
- Dej thiab khoom siv:PTFE lossis RPTFE rau ntev -kev pabcuam corrosion- tiv taus sealing ntawm tus nqi qis
Sib piv lub rooj zaum rau lub pob Valve
Kev xaiv lub rooj zaum tsis tuaj yeem raug cais tawm ntawm lub pob valve uas nws kaw. Lub pob muab qhov precision nto - roundness nyob rau hauv microns, qhov tseeb qhov tseeb rau0.001 hli, thiab ib qho kev sib khi ua tiav - thiab lub rooj zaum haum rau nws. Lub siab- pob zoo nrog lub rooj zaum tsis zoo, lossis lub rooj zaum zoo ntawm qhov tawm - ntawm - pob, ob qho tib si ua kom tawg thiab hnav ntxov ntxov.
Ob txoj cai siv tau. Ua ntej, lub rooj zaum yuav tsum tau sib haum nrog lub pob saum npoo kev kho mob: nyuaj chrome plated, tungsten carbide coated, los yog HVOF- cov khoom txau feem ntau yog ua ke nrog cov hlau lossis cov rooj zaum tawv tawv rau kev pabcuam hnyav, thaum polished stainless hlau pob ua ke nrog PTFE, RPTFE, lossis PEEK rooj zaum rau lub luag haujlwm. Thib ob, muab ob qho tib si los ntawm cov chaw tsim khoom uas tswj hwm tag nrho cov khoom sib khi - pob, lub rooj zaum, thiab kev kho saum npoo - rau ib tus qauv zoo, vim tias qhov sib cuam tshuam ntawm lawv yog qhov kev ntseeg ntawm lub valve yog yeej lossis poob.
Ua haujlwm nrog tus kws tsim khoom tshwj xeeb Valve Seat
Thaum ntsuam xyuas lub rooj muag khoom valve, cov neeg yuav khoom yuav tsum txheeb xyuas cov txheej txheem zoo tom qab cov lus hais. Lub tuam txhab txhim khu kev qha tau txheeb xyuas los ntawm:
- Dedicated muaj peev xwm:lub rooj machining thiab cov khoom siv ua cov khoom tseem ceeb
- Certified zoo system:ISO 9001 nrog cov txheej txheem lees paub rau qhov ntev, tiav, thiab cov khoom siv
- Khoom siv traceability:daim ntawv pov thawj txuas txhua batch rau raw khoom cua sov thiab cov ntaub ntawv tshuaj xyuas
- Pob thiab lub rooj sib xyaw ua ke:muab cov pob valve thiab cov rooj zaum ua ke nrog kev sib haum xeeb thiab kev kho saum npoo
- Kev sim:Cov ntaub ntawv pov thawj ntawm lub rooj zaum tiv thaiv cov qauv xws li ISO 5208, sau tseg rau txhua pawg
- Kev them nyiaj yug OEM:kev cai rooj zaum qhov ntev, cov ntaub ntawv, thiab configurations tsim los ntawm cov neeg siv khoom kos duab
Ib tus kws tshaj lij yuav lees paub cov khoom siv lub rooj zaum, qhov kub thiab txias, thiab cov chav kawm xau hauv kev sau ntawv, pom zoo rau qib raug, thiab muab cov ntaub ntawv txhawb nqa koj qhov kev lees paub zoo.
Cov lus nug nquag
Dab tsi yog cov khoom siv hauv lub rooj zaum feem ntau rau pob li qub?
Virgin PTFE yog cov khoom siv feem ntau rau cov khoom siv dav dav rau - pabcuam pob li qub, sib txuas ze ntawm - universal chemical resistance with the lowest friction and cost . RPTFE yog tus qauv hloov kho rau siab dua thiab kev caij tsheb kauj vab.
Qhov ntsuas kub npaum li cas tuaj yeem ua PTFE lub rooj zaum kov?
Virgin PTFE rooj zaum feem ntau nyob ntawm kwv yees li -45℃txog 200 degree. RPTFE txuas lub qhov rais ua haujlwm txog 230 degree, thiab PEEK txog li 260 degree. Tshaj li qhov ntau, cov rooj zaum hlau yuav tsum.
Thaum twg yuav tsum tau teev lub hlau -seated valve?
Cov rooj zaum hlau tau teev saum toj no kwv yees li 260 degree, rau cov xov xwm abrasive lossis erosive, lossis thaum hluav taws kub - ntawv pov thawj kev nyab xeeb yog qhov yuav tsum tau ua. Lawv ua tiav Chav Kawm IV mus rau V to thiab xav tau kev ua kom muaj zog ntau dua li cov rooj zaum mos.
Qhov txawv ntawm PTFE thiab RPTFE rooj zaum yog dab tsi?
RPTFE yog PTFE reinforced nrog 15 mus rau 25% iav fiber ntau, carbon, los yog graphite. Cov fillers txhim kho lub zog compressive thiab nkag mus, tso cai rau siab dua thiab nquag caij tsheb kauj vab thaum cov tshuaj lom neeg sib raug zoo nyob twj ywm zoo ib yam li nkauj xwb PTFE.
Lub rooj zaum thiab lub pob valve puas tuaj yeem tau txais los ntawm tib lub chaw tsim khoom?
Yog, thiab feem ntau nws yog qhov zoo. Lub chaw tsim khoom uas tswj ob lub pob thiab lub rooj zaum tuaj yeem ua kom haum rau qhov siab, qhov chaw tiav, thiab cov khoom siv rau ib tus qauv zoo, txo qis kev pheej hmoo cuam tshuam thiab ua kom yooj yim rau kev yuav khoom rau valve OEMs.
Nrhiav rau lub rooj zaum Valve thiab Valve Ball Chaw tsim tshuaj paus nrog kev sib tw Precision?
Raws li phau ntawv qhia no piav qhia, lub valve sealing kev ntseeg siab nyob ntawm lub rooj zaum thiab lub pob ua haujlwm ua ib khub sib tw.Zhejiang Jigong Valve Co., Ltd.specializes nyob rau hauv precision valve pob thiab valve rooj nrog ntau tshaj 30 xyoo ntawm kev paub, muab CNC thiab sib tsoo precision mus txog 0.001 hli, ib tug tag nrho cov ntaub ntawv xws li stainless hlau, Duplex, Super Duplex, thiab npib tsib xee-raws li alloys, nto kho xws li ENP, nyuaj chrome plating, tungsten carbide txheej, HVOF0, thiab kev tswj zoo Stellite.
Txawm hais tias koj xav tau cov txheej txheem tsim khoom, kev txhawb nqa OEM, lossis kev cai -cov pob valve thiab cov rooj zaum, peb pab neeg muaj los tham txog koj cov khoom yuav tsum tau ua thiab muab cov lus qhia ntxaws.
Thov ib daim Quote
