Koj paub ntau npaum li casli qub?
Taw qhia: los ntawm cov txheej txheem thoob ntiaj teb ntawm cov khoom siv yas valve thiab cov qauv kev sim ntawm cov khoom siv raw, cov qauv tsim thiab kev tsim khoom, cov kev xav tau ntawm kev ua haujlwm, cov qauv kev xeem, cov txheej txheem kev thov thiab kev siv lub siab thiab qhov kub thiab txias, thiab lwm yam, kev sib raug zoo ntawm tuaj yeem nkag siab qhov xav tau. ntawm yas valve foob xeem, torque xeem thiab qaug zog lub zog xeem thiab thiaj li nyob rau hauv cov kev cai tswj kom zoo. Qhov yuav tsum tau muaj ntawm lub rooj zaum foob kev sim, valve lub cev foob kev sim, lub cev lub zog ntsuas lub cev, qhov ntsuas lub sijhawm ntev, kev qaug zog lub zog thiab kev ua haujlwm torque tau sau tseg hauv daim ntawv ntawm cov ntxhuav. Los ntawm kev sib tham txog ntau yam teeb meem hauv cov qauv thoob ntiaj teb, cov neeg tsim khoom thiab cov neeg siv cov yas li qub tau txhawj xeeb. Nrog rau kev faib ua feem ntawm cov kav dej yas hauv cov dej txias thiab dej kub thiab kev tsim hluav taws xob tsim hluav taws xob, kev tswj xyuas zoo ntawm cov kav dej yas hauv cov kav dej yas ua ntau dua thiab tseem ceeb dua. Vim hais tias cov yas valve muaj qhov zoo ntawm lub teeb yuag, kev tiv thaiv corrosion, tsis muaj adsorption nplai, thiab cov kav dej yas sib txuas thiab kev pab cuam lub neej ntev, yas valve hauv dej (tshwj xeeb yog dej kub thiab cua sov) thiab kev lag luam siv lwm cov dej hauv cov kav dej yas. system, nws daim ntawv thov zoo yog lwm yam li qub tsis tuaj yeem muab piv. Tam sim no nyob rau hauv domestic ntau lawm thiab daim ntawv thov ntawm yas li qub, nws cov kev tswj yog tsis txhim khu kev qha, cov khoom siv dej thiab lwm yam kua yas li qub siv nyob rau hauv kev lag luam cov khoom zoo tsis sib xws, cov engineering daim ntawv thov ntawm kaw lax thiab to phenomenon yog loj, tsim ib tug yas. valve siv tsis tau, cuam tshuam rau tag nrho txoj kev loj hlob ntawm daim ntawv thov cov yeeb nkab yas. Lub teb chaws tus qauv ntawm yas valve nyob rau hauv Peb lub teb chaws yog nyob rau hauv tus txheej txheem ntawm kev ua, nws cov khoom txheem thiab cov txheej txheem yog ua raws li lub thoob ntiaj teb tus qauv. International yas valve hom yog cov pob valve, npauj npaim valve, kos valve, diaphragm valve thiab lub ntiaj teb valve, cov qauv ntawm lub ntsiab ntawm ob, peb thiab ntau txoj kev valve, cov ntaub ntawv tseem ceeb yog ABS, PVC-U, PVC- C, PB, PE, PP thiab PVDF thiab lwm yam. Nyob rau hauv cov txheej txheem thoob ntiaj teb ntawm cov khoom siv yas valve, ua ntej ntawm tag nrho cov, cov khoom siv raw siv hauv kev tsim cov li qub yog xav tau. Cov neeg tsim khoom ntawm cov khoom siv raw yuav tsum muaj qhov tsis ua haujlwm ntawm qhov nkhaus nkhaus raws li tus qauv ntawm cov khoom siv yas yeeb nkab. Nyob rau tib lub sijhawm, kev ntsuas kev sib khi, kev ntsuas lub cev lub cev, kev ntsuas kev ua haujlwm ntev, kev sim qaug zog thiab kev ua haujlwm torque ntawm tag nrho lub valve tau teev tseg, thiab tsim kev pabcuam lub neej ntawm cov yas valve siv rau kev thauj mus los yog 25 xyoo. TS EN ISO 15493: 2003 Yas Piping Systems rau kev lag luam siv - ABS, PVC-U thiab PVC-Cov Yeeb Nkab thiab Fitting Systems - Kev qhia tshwj xeeb rau cov yeeb nkab thiab fitting systems - Specification rau thawj feem ntawm lub valve lub cev, lub kaus mom thiab lub kaus mom yuav tsum ua raws li ISO 15493: 2003 Plastics Piping Systems rau kev lag luam siv - ABS, PVC-U thiab PVC-C - Cov yeeb nkab thiab fitting Systems - Specification rau TS EN ISO 15493: 2003 Yas Piping Systems rau kev lag luam siv - ABS, PVC-U thiab PVC-C - Cov kav dej thiab fitting Systems Metric series thiab ISO 15494: 2003 Plastics Piping Systems rau kev siv - PB, PE thiab PP - Cov kav dej thiab Fittings Systems specification - *** Tshooj: Metric Series. A) Yog tias lub valve * muaj kev coj tus kheej, nws yuav tsum tau cim nrog lub xub nyob rau sab nraud ntawm lub cev valve. Valves ntawm symmetrical tsim yuav tsum haum rau ob txoj kev khiav thiab kev sib cais. B) Lub sealing feem yog tsav los ntawm lub valve qia kom qhib thiab kaw lub valve. Nws yuav tsum tau muab tso rau ntawm qhov kawg taw tes lossis ib qho chaw nruab nrab los ntawm kev sib txhuam los yog tus actuator, thiab cov kua siab tsis tuaj yeem hloov nws txoj haujlwm. C) Raws li EN736-3, qhov tsawg tshaj plaws los ntawm lub qhov hauv lub valve yuav tsum ua raws li ob lub ntsiab lus hauv qab no: - rau ib qho aperture ntawm lub valve nruab nrab ntws, nws yuav tsum tsis pub tsawg tshaj 90% ntawm lub valve DN tus nqi; Rau cov li qub uas tsim nyog los txo qhov nruab nrab ntws aperture, cov chaw tsim khoom yuav tsum hais qhov tsawg kawg nkaus los ntawm qhov. D) Kev foob ntawm qia thiab lub cev yuav tsum ua raws li EN736-3. E) Hais txog qhov hnav tsis kam ntawm li qub, tus tsim ntawm li qub yuav tsum coj mus rau hauv tus account lub neej kev pab cuam ntawm cov khoom hnav, los yog cov chaw tsim khoom yuav tsum qhia nyob rau hauv cov lus qhia kev khiav hauj lwm cov lus qhia rau kev hloov tag nrho lub valve. F) tag nrho cov khoom siv ua haujlwm valve yuav tsum muaj tus nqi ntws ntawm 3m / s. G) Thaum pom los ntawm saum lub valve, lub valve kov lossis lub log yuav tsum kaw lub valve clockwise. 3 Cov kev cai tsim khoom a) Kev ua haujlwm ntawm cov khoom siv raw khoom yuav tsum ua raws li cov lus qhia ntawm cov khoom siv raw khoom thiab ua tau raws li cov qauv khoom. B) Cov khoom siv raw code, txoj kab uas hla DN thiab nominal siab PN yuav tsum tau cim rau ntawm lub valve lub cev. C) Lub cev valve yuav tsum tau cim nrog lub chaw tsim khoom lub npe lossis cov cim lag luam. D) Lub cev valve yuav tsum tau cim nrog hnub tsim khoom lossis tus lej lej. E) Lub cev valve yuav tsum tau cim nrog cov cai ntawm cov chaw tsim khoom sib txawv. 4 lub sij hawm luv luv kev ua tau zoo yuav tsum tau ua haujlwm luv luv hauv cov qauv khoom yog lub Hoobkas tshuaj xyuas cov khoom, feem ntau yog ua qhov kev sim sealing ntawm lub rooj zaum valve thiab valve lub cev sealing test, siv los xyuas qhov kev sib khi ntawm cov yas li qub, yas li qub uas tuaj yeem ua tau. tsis muaj qhov to hauv sab hauv (valve seat to to) phenomenon, kuj tsis tuaj yeem muaj qhov to sab nraud (valve to) tshwm sim. Lub rooj zaum valve sealing xeem yog los xyuas qhov kev ua tau zoo ntawm lub valve cais piping system; Lub valve lub cev foob kev sim yog los xyuas qhov to ntawm lub valve qia foob thiab lub valve sib koom ua ke. Cov yas valve thiab cov raj xa dej txuas nrog kev sib txuas ntawm vuam: sab nraud ntawm lub valve txuas yog sib npaug rau sab nraud ntawm cov yeeb nkab, thiab lub ntsej muag kawg ntawm lub valve txuas yog welded txheeb ze rau lub ntsej muag kawg ntawm cov yeeb nkab; Kev sib txuas ntawm qhov (socket) txuas: qhov txuas ntawm lub valve yog nyob rau hauv daim ntawv ntawm lub qhov (socket), uas yog sib txuas nrog cov yeeb nkab fittings; Hluav taws xob fusion socket kev twb kev txuas: lub valve kev twb kev txuas ib feem yog lub qhov (socket) daim ntawv nrog hluav taws xob cua sov hlau nyob rau hauv lub puab txoj kab uas hla, thiab yog hluav taws xob fused nrog cov yeeb nkab; Qhov (socket) kub yaj kev twb kev txuas: lub valve txuas ib feem yog lub qhov (socket) daim ntawv, thiab cov yeeb nkab txuas nrog lub qhov (socket) kub yaj; Kev sib txuas ntawm lub qhov (socket) kev sib txuas: qhov sib txuas ntawm lub qhov (socket) yog nyob rau hauv daim ntawv ntawm lub qhov (socket), thiab cov yeeb nkab yog qhov sib txuas ntawm lub qhov (socket); Cov kabmob roj hmab sealing nplhaib kev sib txuas: lub valve txuas ib feem yog cov kabmob ntawm inlaid roj hmab sealing nplhaib, thiab cov yeeb nkab txuas nrog lub qhov (socket); Flange kev twb kev txuas: lub valve txuas ib feem yog nyob rau hauv daim ntawv ntawm flange, txuas nrog lub flange ntawm cov yeeb nkab; Xov kev sib txuas: lub valve txuas yog nyob rau hauv daim ntawv ntawm cov xov, txuas nrog cov xov ntawm cov yeeb nkab lossis cov yeeb nkab fittings; Kev sib txuas nyob: qhov sib txuas ntawm lub valve yog nyob rau hauv daim ntawv ntawm kev sib txuas nyob, thiab cov yeeb nkab lossis cov yeeb nkab fittings txuas nrog. Cov kev sib txuas sib txawv tuaj yeem ua tau ib txhij ntawm tib lub valve. Nrog rau qhov kub thiab txias, lub neej kev pab cuam ntawm cov yas li qub yuav tsum luv luv. Txhawm rau tswj lub neej kev pabcuam tib yam, koj yuav tsum tau txo qhov kev pabcuam siab.
Koj paub ntau npaum li cas txog li qub?
Cov yeeb nkab flanges feem ntau suav nrog cov khoom siv (IF), phaj tiaj vuam (PL), caj dab tiaj tus vuam (SO), caj dab taub qab vuam (WN), lub qhov (SW), ntsia hlau (Th), taub qab vuam nplhaib xoob lub tes tsho (PJ / SE). ) / (LF / SE), welding nplhaib xoob lub tes tsho (PJ / RJ) thiab flange npog (BL), thiab lwm yam.
Lub hauv paus valve
1, txoj kev tseem ceeb ntawm kev sib txuas valve yog: flange, xov, vuam, clamping
2, lub valve yooj yim ua haujlwm: txiav tawm qhov nruab nrab, kho qhov ntws, hloov cov kev taw qhia ntws
3, qhov tseem ceeb ntawm lub valve yog: nominal siab PN, nominal txoj kab uas hla DN
4, valve siab - qib kub: cov ntaub ntawv sib txawv, qhov sib txawv ntawm kev ua haujlwm kub, cia tsis muaj kev cuam tshuam kev ua haujlwm siab sib txawv
5, yeeb nkab flange qauv feem ntau muaj ob lub tshuab: European system thiab American system.
Yuav kom paub qhov txawv haum raws qib siab:
European system yog PN0.25, 0.6, 1.0, 1.6, 2.5, 4.0, 6.3, 10.0, 16.0, 25.0, 32.0, 40.0MPa;
American system yog PN1.0(CIass75), 2.0(CIass150), 5.0(CIass300), 11.0(CIass600), 15.0(CIass900), 26.0(CIass1500), 42.0(CIass2500)MPa.
Common (universal) li qub
1, valve hom code Z, J, L, Q, D, G, X, H, A, Y, S raws li: rooj vag valve, ntiaj teb valve, throttle valve, pob valve, npauj npaim valve, diaphragm valve, ntsaws valve, kos valve, kev ruaj ntseg valve, siab txo valve, ntxiab valve
2, valve kev twb kev txuas code 1, 2, 4, 6, 7 raws li: 1 - xov sab hauv, 2 - xov sab nraud, 4 - flange, 6 - vuam, 7 - clamp
3, lub valve kis tau tus mob code 9, 6, 3 raws li: 9 - hluav taws xob, 6 - pneumatic, 3 - turbo worm
4, valve lub cev khoom code Z, K, Q, T, C, P, R, V raws li: grey cam khwb cia hlau, malleable cam khwb cia hlau, ductile cam khwb cia hlau, tooj liab thiab alloy, carbon hlau, chromium nickel stainless hlau, chromium nickel molybdenum stainless hlau, chromium molybdenum vanadium hlau
5, lub rooj sib khi los yog hauv ob sab phlu code R, T, X, S, N, F, H, Y, J, M, W feem: austenitic stainless hlau, tooj liab alloy, roj hmab, yas, nylon yas, fluorine yas, Cr stainless hlau , tawv alloy, roj hmab hauv ob sab phlu, Monel alloy, valve lub cev khoom
6, cam khwb cia hlau valve lub cev tsis haum rau lub ntees: flammable thiab explosive kua; Qhov twg qhov kub thiab txias yog qis dua -20 ℃; Compressed roj; Dej vapor lossis roj ntub dej uas muaj dej ntau.
Flange sealing nto hom feem ntau suav nrog: tag nrho dav hlau (FF), protrusive nto (RF), concave (FM) convex nto (M), tenon (T) zawj (G) nto, nplhaib sib txuas nto (RJ), thiab lwm yam.
Post lub sij hawm: Jun-06-2022
