Njengento yokulawula ebalulekile ohlelweni lwamapayipi oketshezi, ama-valve anamafomu ahlukahlukene okuxhumana ukuze azivumelanise nezimo ezihlukene zohlelo lokusebenza nezici zoketshezi. Okulandelayo amafomu okuxhumana ama-valve avamile kanye nezincazelo zawo ezimfushane:
1. Ukuxhumana kwe-Flange
I-valve iexhunywe epayipini ngokufanisa ama-flange nezinsimbi zokubopha amabhawodi, futhi ifanele izinga lokushisa eliphezulu, umfutho ophezulu kanye nezinhlelo zamapayipi amakhulu obubanzi.
inzuzo:
Ukuxhumana kuqinile futhi ukubekwa uphawu kuhle. Ilungele ukuxhunywa kwe-valve ngaphansi kwezimo ezinzima ezifana nokucindezela okuphezulu, izinga lokushisa eliphezulu kanye nemidiya edlayo.
Kulula ukuqaqa nokulungisa, okwenza kube lula ukunakekela nokufaka esikhundleni se-valve.
ukushiyeka:
Kudingeka amabhawodi engeziwe namantongomane ukuze kufakwe, futhi izindleko zokufakwa nokugcinwa kwazo ziphakeme.
Ukuxhumana kwe-Flange kusinda kakhulu futhi kuthatha indawo eyengeziwe.
Ukuxhumeka kwe-Flange kuyindlela evamile yokuxhuma i-valve, futhi amazinga ayo ikakhulukazi ahlanganisa izici ezilandelayo:
Uhlobo lwe-Flange: Ngokuhambisana nokuma kwendawo yokuxhuma kanye nesakhiwo sokubeka uphawu, ama-flange angahlukaniswa abeama-flange welding flat, ama-flange we-butt welding, ama-sleeve flanges avulekile, njll.

Usayizi we-flange: Usayizi we-flange uvame ukuvezwa ku-diameter okuzisholo (DN) wepayipi, futhi usayizi we-flange wamazinga ahlukene angahluka.

Ibanga lokucindezela kwe-Flange: Ibanga lokucindezela lokuxhuma kwe-flange ngokuvamile limelelwa yi-PN (i-European standard) noma I-Class (izinga laseMelika). Amabanga ahlukene ahambisana nengcindezi yokusebenza ehlukene kanye namazinga okushisa.

Ifomu lendawo yokuvala: Kunezinhlobo ezihlukahlukene zendawo yokuvala ama-flange, njengendawo eyisicaba, indawo ephakanyisiwe, indawo egobile kanye ne-convex, indawo yolimi kanye ne-groove, njll. Ifomu elifanele lokuvala indawo kufanele likhethwe ngokuya ngezinto eziwuketshezi kanye nezidingo zokuvala.

2. Ukuxhumana okunentambo
Ukuxhuma okunemicu kusetshenziselwa ikakhulukazi ama-valve anobubanzi obuncane kanye nezinhlelo zamapayipi anengcindezi ephansi. Amazinga ayo ikakhulukazi ahlanganisa izici ezilandelayo:
inzuzo:
Kulula ukuxhuma futhi kulula ukuyisebenzisa, awekho amathuluzi akhethekile noma izisetshenziswa ezidingekayo.

Ifanele ukuxhuma ama-valves amancane kanye namapayipi anengcindezi ephansi enezindleko eziphansi.

ukushiyeka:
Ukusebenza kokuvalwa kuphansi futhi ukuvuza kujwayele ukwenzeka.

Ifaneleka kuphela ukucindezela okuphansi kanye nezimo zokushisa eziphansi. Ngomfutho ophakeme nezimo zokushisa eziphezulu, uxhumo olunentambo kungenzeka lungahlangabezani nezidingo.

Ukuxhuma okunemicu kusetshenziselwa ikakhulukazi ama-valve anobubanzi obuncane kanye nezinhlelo zamapayipi anengcindezi ephansi. Amazinga ayo ikakhulukazi ahlanganisa izici ezilandelayo:
Uhlobo lwentambo: Izinhlobo zentambo ezivame ukusetshenziswa zifaka intambo yepayipi, intambo yepayipi elicijile, intambo ye-NPT, njll. Uhlobo lwentambo olufanele kufanele lukhethwe ngokuya ngempahla yepayipi kanye nezidingo zokuxhuma.

Usayizi womucu: Usayizi wentambo uvamise ukuvezwa ngobubanzi obungajwayelekile (DN) noma ububanzi bepayipi (intshi). Ubukhulu bomucu wezindinganiso ezahlukene bungase buhluke.

Izinto zokuvala: Ukuqinisekisa ukucinana kokuxhumana, i-sealant ivamise ukusetshenziswa emicu noma ezintweni zokuvala ezifana ne-sealing tape.

3. Ukuxhumana kwe-Welding
I-valve kanye nepayipi kuhlanganiswe ngokuqondile ngenqubo ye-welding, efanelekile ezimweni ezidinga ukubekwa uphawu okuphezulu nokuxhumeka unomphela.
inzuzo:
Inamandla okuxhumana aphezulu, ukusebenza kahle kokuvala kanye nokumelana nokugqwala. Ilungele izikhathi ezidinga ukusebenza kokuvala okuhlala njalo nokuphezulu, njengezinhlelo zamapayipi ku-petroleum, amakhemikhali nezinye izimboni.

ukushiyeka:
Kudinga imishini yokushisela ochwepheshe kanye nama-opharetha, futhi izindleko zokufaka nokugcina ziphezulu.

Uma ukushisela sekuqediwe, i-valve nepayipi izokwakha yonke, okungekho lula ukuhlakazeka nokulungisa.

Izixhumi ezishiselwe zifanele izimo ezidinga ukubekwa uphawu okuphezulu nokuxhumeka okungapheli. Amazinga ayo ikakhulukazi ahlanganisa izici ezilandelayo:
Uhlobo lwe-weld: Izinhlobo ze-weld ezivamile zihlanganisa ama-butt welds, ama-weld welds, njll. Uhlobo olufanele lwe-weld kufanele lukhethwe ngokuya ngezinto zepayipi, ukushuba kodonga kanye nezidingo zokuxhuma.

Inqubo yokushisela: Ukukhethwa kwenqubo yokushisela kufanele kucatshangelwe ngokucophelela ngokusekelwe ezicini ezifana nempahla, ukushuba kanye nokuma kwe-welding yensimbi eyisisekelo ukuze kuqinisekiswe izinga lokushisela namandla okuxhumana.

Ukuhlolwa kwe-Welding: Ngemva kokuqedwa kwe-welding, ukuhlolwa okudingekayo nokuhlolwa kufanele kwenziwe, njengokuhlola okubukwayo, ukuhlolwa okungonakalisi, njll, ukuze kuqinisekiswe ikhwalithi ye-welding kanye nokuqina kokuxhuma.

4. Uxhumano lwesokhethi
Ingxenye eyodwa ye-valve iyisokhethi kanti enye i-spigot, exhunywe ngokufaka nokubeka uphawu. Ivame ukusetshenziswa ezinhlelweni zamapayipi epulasitiki.
5. Uxhumano lwe-clamp: Kunemishini yokubopha nhlangothi zombili zevalvu. I-valve igxilwe epayipini ngomshini wokubopha, ofanele ukufakwa ngokushesha nokuhlakazwa.
6. Uxhumano lwemikhono yokusika: Ukuxhuma komkhono wokusika kuvame ukusetshenziswa ezinhlelweni zamapayipi epulasitiki. Ukuxhumana phakathi kwamapayipi nama-valve kutholakala ngamathuluzi akhethekile okusika imikhono kanye nokufakwa komkhono wokusika. Le ndlela yokuxhuma kulula ukuyifaka nokuqaqa.
7. Ukuxhumana okunamathelayo
Ukuxhuma okunamathelayo kusetshenziswa kakhulu kwezinye izinhlelo zamapayipi angewona ezensimbi, njenge-PVC, i-PE namanye amapayipi. Ukuxhuma unomphela kwenziwa ngokuhlanganisa ipayipi ne-valve ndawonye kusetshenziswa i-adhesive ekhethekile.
8. Ukuxhumana kwe-clamp
Ngokuvamile okubizwa ngokuthi i-grooved connection, lena indlela yokuxhuma esheshayo edinga amabhawodi amabili kuphela futhi ifanele ama-valve anengcindezi ephansi avame ukuhlakazwa. Ukufakwa kwamapayipi okuxhumayo kuhlanganisa izigaba ezimbili ezinkulu zemikhiqizo: ① ukufakwa kwamapayipi okusebenza njengezimpawu zokuxhuma kuhlanganisa amalunga aqinile, amalunga aguquguqukayo, ama-mechanical tee nama-flange amile; ② ukufakwa kwamapayipi okusebenza njengoshintsho lokuxhuma kufaka phakathi izindololwane, amateyi, neziphambano , isinciphisi, ipuleti eliyimpumputhe, njll.
Ifomu lokuxhuma i-valve kanye nezinga liyizici ezibalulekile zokuqinisekisa ukusebenza okuphephile nokuthembekile kwe-valve nesistimu yamapayipi. Lapho ukhetha ifomu lokuxhuma elifanele, izici ezifana nempahla yamapayipi, ingcindezi yokusebenza, izinga lokushisa, indawo yokufaka, kanye nezidingo zokugcinwa kwazo kufanele kucatshangelwe ngokugcwele. Ngesikhathi esifanayo, izindinganiso ezifanele kanye nokucaciswa kufanele kulandelwe phakathi nenqubo yokufaka ukuze kuqinisekiswe ukunemba nokuvala izixhumi ukuze kuqinisekiswe ukusebenza okuvamile kwesistimu yamapayipi oketshezi.