Uqhagamshelo oluneflanges lumzimba wevalvu oneflanges kuzo zombini iziphelo, ezihambelana neeflanges ezikwipayipi, ngokubopha iflange efakwe kwipayipi. Uqhagamshelo oluneflanges lolona hlobo lusetyenziswa kakhulu loqhagamshelo lwevalvu. Iiflanges zine-convex (RF), iplane (FF), i-convex kunye ne-concave (MF) kunye nezinye iindawo. Ngokwemilo yomphezulu odibeneyo, inokwahlulwa ibe zezi ntlobo zilandelayo:
(1) uhlobo olugudileyo: lwevalvu enoxinzelelo oluphantsi. Ukucutshungulwa kulula ngakumbi;
(2) uhlobo olugobileyo nolugobileyo: uxinzelelo oluphezulu lokusebenza, ungasebenzisa i-gasket eqinileyo;
(3) uhlobo lwe-tenon groove: i-gasket ene-deformation enkulu yeplastiki ingasetyenziswa kakhulu kwimidiya ebolileyo, kwaye isiphumo sokutywina singcono;
(4) uhlobo lomjelo wetrapezoidal: iringi yentsimbi e-oval njenge-gasket, esetyenziswa kwivalvu yoxinzelelo lokusebenza ≥64 kg/cm2, okanye ivalvu yobushushu obuphezulu;
(5) Uhlobo lwelensi: i-gasket ikwimo yelensi, eyenziwe ngesinyithi. Isetyenziselwa iivalvu zoxinzelelo oluphezulu ezinoxinzelelo olusebenzayo ≥ 100kg/cm2, okanye iivalvu zobushushu obuphezulu;
(6) Uhlobo lwe-O-ring: olu luhlobo olutsha loqhagamshelo lweflange, luvela kuzo zonke iintlobo ze-O-ring zerabha, kwaye luphuhlisiwe, luthembeke ngakumbi kwisiphumo sokutywina kune-gasket eqhelekileyo ethe tyaba.
(1) Uqhagamshelo lokuwelda ngeempundu: zombini iziphelo zomzimba wevalvu zicutshungulwa zibe yimpundu yokuwelda ngeempundu ngokweemfuno zokuwelda ngeempundu, ezihambelana nomjelo wokuwelda ngepayipi, kwaye zifakwe kumbhobho ngokusebenzisa ukuwelda.
(2) uqhagamshelo lwe-socket welding: zombini iziphelo zomzimba wevalvu zicutshungulwa ngokweemfuno ze-socket welding kwaye ziqhagamshelwe nombhobho nge-socket welding.
Uqhagamshelo olunemisonto yindlela elula yoqhagamshelo kwaye ludla ngokusetyenziswa kwiivalvu ezincinci. Umzimba wevalvu ucutshungulwa ngokwemisonto eqhelekileyo, kwaye kukho iintlobo ezimbini zemisonto yangaphakathi kunye neyangaphandle. Ehambelana nomsonto okwipayipi. Uqhagamshelo olunemisonto lwahlulwe kwiimeko ezimbini:
(1) ukuvala ngokuthe ngqo: imisonto yangaphakathi nangaphandle idlala indima yokuvala ngokuthe ngqo. Ukuqinisekisa ukuba ijoyinti ayivuzi, idla ngokuba ne-oyile ye-lead, i-hemp kunye ne-PTFE green material filling band; Phakathi kwazo, i-PTFE green material band isetyenziswa kakhulu. Le nto inokumelana nokugqwala okuhle, isiphumo esihle kakhulu sokuvala, kulula ukuyisebenzisa nokuyigcina, xa isuswa, ingasuswa ngokupheleleyo, kuba lulwaleko lwefilimu engeyiyo i-viscous, ingcono kakhulu kune-oyile ye-lead, i-hemp.
(2) ukuvala ngokungathanga ngqo: amandla okuqinisa izikrufu adluliselwa kwi-gasket ephakathi kwezi planes zimbini, ukuze i-gasket idlale indima yokuvala.
Kukho iintlobo ezintlanu zeentambo ezisetyenziswa rhoqo:
(1) Umsonto oqhelekileyo weMetriki;
(2) Umsonto oqhelekileyo we-intshi;
(3) Umsonto wombhobho wokuvala imisonto;
(4) umsonto wombhobho wokuvala ongenamisonto;
(5) Imisonto yepayipi esemgangathweni yaseMelika.
Intshayelelo ngokubanzi yile ilandelayo:
① Umgangatho wamazwe ngamazwe we-ISO228/1, DIN259, womsonto ohambelanayo wangaphakathi nowangaphandle, ikhowudi G okanye i-PF(BSP.F);
② Umgangatho waseJamani i-ISO7/1, i-DIN2999, i-BS21, yekhowuni yamazinyo angaphandle, umsonto ohambelanayo wamazinyo angaphakathi, ikhowudi ye-BSP.P okanye i-RP/PS;
③ I-ISO7/1 esemgangathweni yaseBritane, i-BS21, umsonto we-taper wangaphakathi nangaphandle, ikhowudi ye-PT okanye ye-BSP.TR okanye ye-RC;
④ I-ANSI B21 esemgangathweni yaseMelika, umsonto we-taper wangaphakathi nowangaphandle, ikhowudi ye-NPT G(PF), i-RP(PS), izinyo le-RC (PT) I-Angle yi-55°, izinyo le-NPT I-Angle yi-60°BSP.F, i-BSP.P kunye ne-BSP.TR zibizwa ngokuba ngamazinyo e-BSP.
Kukho iintlobo ezintlanu zeentambo zemibhobho esemgangathweni eMelika: i-NPT yokusetyenziswa ngokubanzi, i-NPSC yeentambo zemibhobho yangaphakathi ethe tye yokufakelwa, i-NPTR yokudibanisa intonga yesikhokelo, i-NPSM yeentambo zemibhobho ethe tye yokudibanisa oomatshini (ukudibanisa oomatshini okufanelekileyo ngokukhululekileyo), kunye ne-NPSL yokudibanisa oomatshini okukhululekileyo okufanelekileyo ngeenati ezitshixayo. Yeyomsonto wemibhobho etywiniweyo engenamisonto (N: umgangatho wesizwe waseMelika; P: umbhobho; T: Taper)
4. Uqhagamshelo lweTaper
Umgaqo woqhagamshelo kunye nokutywinwa kwesingxobo kukuba xa i-nut iqinisiwe, isingxobo siphantsi koxinzelelo, ukuze umphetho ungene eludongeni lwangaphandle lombhobho, kwaye ikhowuni engaphandle yesingxobo ivalwe ngokuqinileyo kunye nekhowuni yomzimba odibeneyo phantsi koxinzelelo, ukuze ikwazi ukuthintela ngokuthembekileyo ukuvuza.iivalvu zezixhobo.Iingenelo zale ndlela yokunxibelelana zezi:
(1) Umthamo omncinci, ubunzima obulula, isakhiwo esilula, kulula ukuyiqhaqha nokuhlanganisa;
(2) i-relay enamandla, esetyenziswa ngeendlela ezahlukeneyo, inokumelana noxinzelelo oluphezulu (1000 kg/isentimitha yesikwere), ubushushu obuphezulu (650℃) kunye nokungcangcazela kwempembelelo;
(3) banokukhetha iintlobo ngeentlobo zezinto, ezifanelekileyo zokuthintela ukugqwala;
(4) ukuchaneka komatshini wokusebenza akuphezulu;
(5) kulula ukuyifaka kwindawo ephakamileyo.
5. Uqhagamshelo lweClamp
Yindlela yokuxhuma ngokukhawuleza efuna iibholiti ezimbini kuphela kwaye ifanelekile kwiivalvu ezinoxinzelelo oluphantsi ezihlala zisuswa.
Ixesha lokuthumela: Februwari-22-2022