Ukuthi ukuxhumeka phakathi kweisivalwanakanyeiphini libe lineNoma imishini ilungile futhi kufanelekile izothinta ngokuqondile amandla e-valve valve egijima, ebeka engcupheni, edonsa futhi ivuvu.
1. Ukuxhumeka kwe-Flange
Ukuxhumeka kwe-Flanged ngumzimba we-valve ngama-flanges kuwo womabili ama-Emps, okuhambelana nama-flanges epayipini, ngokubopha i-flange efakwe epayipini. Ukuxhumeka okuvuthayo kuyindlela esetshenziswa kakhulu ye-valve uxhumano. Ama-Flanges ane-convex (RF), indiza (FF), i-convex ne-concave (MF) nakwamanye amaphuzu. Ngokwesimo sendawo ehlanganyelwe, ingahlukaniswa ngezinhlobo ezilandelayo:
(1) Uhlobo olubushelelezi: nge-valve ngengcindezi ephansi. Ukucubungula kulula kakhulu;
(2) Uhlobo lwe-concave ne-convevex: Ingcindezi yokusebenza ephezulu, ingasebenzisa i-gasket kanzima;
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(5) Uhlobo lwelensi: I-gasket isesimweni selensi, eyenziwe ngensimbi. Isetshenziselwe ama-valves aphezulu wokucindezela ngengcindezi yokusebenza ≥ 100kg / cm2, noma ama-valve okushisa aphezulu;
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Ukuxhumeka okufakiwe kuyindlela elula yokuxhumanisa futhi kuvame ukusetshenziselwa ama-valve amancanyana. Umzimba we-valve ucutshungulwa ngokuya ngomucu ojwayelekile, futhi kunezinhlobo ezimbili zentambo yangaphakathi nentambo yangaphandle. Ehambelana nentambo ngepayipi. Ukuxhumana okuhlanganisiwe kuhlukaniswe izimo ezimbili:
(1) Ukubekwa uphawu ngqo: imicu yangaphakathi nangaphandle idlala ngokuqondile indima yokuvala uphawu. Ukuze uqinisekise ukuthi ukuhlangana akukuvuza, imvamisa ngamafutha okuhola, i-hemp ne-PTFE efundwayo yokugcwaliswa kwezinto ezibonakalayo; Phakathi kwazo, i-PTFE eluhlaza efulelweni ye-PTFE isetshenziswa kabanzi. Lokhu okuqukethwe kunokumelana kahle nokugqwala, umphumela omuhle kakhulu wokufaka uphawu, okulula ukuyisebenzisa nokugcina, lapho kungahle kususwe, ngoba kuyisisekelo sefilimu engabonakali, kungcono kakhulu kunamafutha okuhola, i-hemp.
(2) Ukubekwa uphawu okungaqondile: Amandla okuqina kwesikhashana adluliselwa ku-gasket phakathi kwezindiza ezimbili, ukuze i-gasket idlala indima yokubopha uphawu.
Kunezinhlobo ezinhlanu zemicu ezisetshenziswayo ezisetshenziswayo:
(1) intambo evamile yemetric;
(2) intshi intambo evamile;
(3) intambo yokubopha uphawu lokubopha;
(4) Intambo yepayipi yokubopha evinjelwe kangaka
(5) Imicu ejwayelekile yaseMelika.
Isingeniso Jikelele sinjengokulandelayo:
① International Standard Iso228 / 1, DIN259, ngentambo yangaphakathi nangaphandle, ikhodi g noma i-PF (BSP.F);
② I-Standard German Standard Iso7 / 1, DIN2999, BS21, ngentambo yezinyo yangaphandle, i-Inner Tooth Parallel Thread, ikhodi BSP.P noma RP / PS;
③ I-ISO7 / 1, BS21, Intambo ye-Taper yangaphakathi nangaphandle, ikhodi PT noma i-BSP.tr noma i-RC;
④ American Standard ANSI B21, intambo yangaphakathi nangaphandle, i-Code NPT G (PF), RP (PT), i-RC (PS), i-RC (PS), i-NPS Tooth Angle ngu-60 ° BSP.F, BSP.p ne-BSP. I-tr ngokuhlangene ibizwa ngokuthi amazinyo e-BSP.
Kunezinhlobo ezinhlanu zemicu yepayipi e-United States: I-NPTC yokusebenzisa okujwayelekile, i-NPTR yokuxhumeka kwamapayipi angaphakathi kwamaphayiphu, i-NPSM yokuxhumeka kwamaphayiphu okuqondile kokuxhunyaniswa kwemishini (ukuxhumana kwamahhala kwemishini), ne-NPSL Ngokuxhumeka okulungiselelwe okulungiselelwe ngamantongomane okukhiya. Ingokwe-SAMANDELWEWE I-PIPE PICE (N: American National Card; P: Pipe; T: TAPER)
I-4 .Taper uxhumano
Ukuxhumeka kanye nokubekwa uphawu komkhono kulapho kuqiniswa, umkhono ungaphansi kwengcindezi, ukuze umphetho ungena odongeni lwangaphandle lwepayipi, futhi isigaxa sangaphandle se-sleeve sivalwe ngokuqinile nesigaxa sika Umzimba ohlanganyelwe ngaphansi kwengcindezi, ngakho-ke kungavimba ngokuthembekile ukuvuza. Njengeama-valves wensimbi.Izinzuzo zale ndlela yokuxhumanisa yilezi:
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(3) angakhetha izinto ezahlukene zezinto, ezilungele ukuvimbela ukonakala;
(4) Ukunemba kwemishini akuphezulu;
(5) Kulula ukufaka indawo ephezulu.
I-5. Ukuxhuma kweCemp
Kuyindlela yokuxhuma esheshayo edinga ama-bolts amabili kuphela futhi ilungele ama-valves aphansi atholakala ngokuvamile asuswe.
Isikhathi sePosi: Feb-22-2022