I-valve yebhola ye-polyethylene (PE) engaphansi komhlaba iyingxenye ebalulekile yokulawula eyenzelwe ngqo izinhlelo zamapayipi e-polyethylene (PE) engaphansi komhlaba ekuhlinzekweni kwegesi namanzi edolobheni. Le valve inesakhiwo sepulasitiki yonke (PE), lapho izinto eziyinhloko ziyi-polyethylene (PE100 noma i-PE80), kanye nesilinganiso sobukhulu obujwayelekile (SDR) esingu-11. Inamandla okumelana nokugqwala okuhle kakhulu, ukulwa nokuguga, kanye nokusebenza kokuvala. Isici esiyinhloko sokuklama ukuhlanganiswa kwe-valve eyinhloko nama-valve amabili omoya, okuvumela ukuvulwa nokuvalwa okuphephile nokulula kohlelo lwamapayipi, kanye nokusebenza kokungenisa umoya okuphakathi kanye nokufaka esikhundleni. I-valve igqitshwe ngqo ngaphansi komhlaba futhi ingasetshenziswa kusuka phezulu ngesivikelo esivikelayo kanye nokhiye ozinikele, okwenza kube lula kakhulu inqubo yokulungisa. Iyindlela efanelekile yokuqinisekisa ukusebenza okuphephile nokulula kwamanethiwekhi amapayipi e-PE angaphansi komhlaba.
Izici Zokusebenza
Ukuvala Okuphezulu: Kusebenzisa isakhiwo sesivalo esintantayo esiziqinisayo ukuqinisekisa ukuthi akukho ukuvuza ngaphakathi nangaphandle kwevalvu, okunikeza ukuphepha nokuthembeka.
Ukuqina Okuhlala Isikhathi Eside: Isakhiwo esenziwe ngepulasitiki kuphela asidingi ukwelashwa kokulwa nokugqwala, ukuvimbela amanzi, noma ukuguga, futhi sinokuphila kwenkonzo okufika eminyakeni engama-50 ngaphansi kwezimo zokuklama.
Ukusebenza Okulula: Kulula nge-torque encane yokuvula nokuvala, futhi kufakwe isikrufu esikhethekile sokusebenza okulula komhlabathi.
Ukufakwa Nokunakekelwa Okulula: Kungaxhunywa kumapayipi e-PE kusetshenziswa izindlela ezijwayelekile ze-electrofusion noma ze-butt fusion, ngokusebenza kahle kakhulu kokwakha. Ukulungiswa okuvamile kudinga kuphela imisebenzi yokuvula nokuvala njalo ezinyangeni ezintathu.
Umsebenzi Wokufaka Umoya Ophindwe Kabili: Kuhlanganiswe nama-port amabili okufaka umoya, okusiza ukukhululwa okuphephile kwegesi esele engxenyeni yepayipi engezansi ngemva kokuvala i-valve eyinhloko, okuyisici esibalulekile sokuphepha sokulungiswa, ukulungiswa, noma ukuphathwa okuphuthumayo.
Izimo Zokusebenza
Imithombo Esebenzayo: Igesi yemvelo ehlanziwe, igesi kaphethiloli encibilikisiwe, igesi yokwenziwa, futhi ifanelekela izinhlelo zokuphakelwa kwamanzi zasemadolobheni.
Ukucindezela Okujwayelekile: I-PN ≤ 0.5 MPa (ehambisana nokucindezela kohlelo lwepayipi le-PE oluxhunyiwe), ngokucindezela okuphezulu kokusebenza okuphindwe ka-1.5 kunokucindezela kokuhlola ukuvala (kufika ku-1.2 MPa) ngokusekelwe ezindinganisweni zomhlaba wonke, kanye nokuhlolwa kokuvala ukucindezela okuphansi okungu-28 KPa ngokuhambisana nezindinganiso ze-ASME ukuqinisekisa ukusebenza kokuvala nokuqina kwevalvu.
Izinga Lokushisa Lokusebenza: -20°C kuya ku-+40°C (ingcindezi yokusebenza evumelekile emazingeni okushisa ahlukene kumele ihambisane nezindinganiso zezinto zepayipi ze-PE ezihambisanayo).
Ububanzi obujwayelekile (dn): Itholakala ngemininingwane eminingi, kufaka phakathi u-32, 40, 50, 63, 75, 90, 110, 125, 160, 180, 200, 250, 315, 355, kanye no-400.
Amazinga
GB/T 15558.3-2008
I-ISO4437-4: 2015
EN1555-4:2011
ASEME B 16.40:2013
Ukuphatha Nokuhlola
Uma uphatha ama-valve, kufanele aphakanyiswe futhi abekwe ngobumnene. Akuvunyelwe ngokuphelele ukushayisana noma ukushaya noma iyiphi ingxenye yomzimba we-valve ukuvimbela umonakalo. Ngaphambi kokufakwa, ukusebenza kokuvala kwe-valve kufanele kuhlolwe. Indawo yokuhlola kufanele ibe umoya noma i-nitrogen, futhi okuqukethwe kokuhlola kufanele kufake ukuvala kwesobunxele, ukuvala kwesokudla, kanye nokusebenza kokuvala okugcwele, okumele kuhambisane nezinga le-GB/T13927-1992.
Isikhundla Sokufaka
Amavalvu kufanele afakwe esisekelweni esiqinile, futhi ngesikhathi sokufakwa, ivalvu kumele ibe sesimweni sokuvuleka ngokuphelele.
Ukuhlanzwa Kwepayipi
Ngaphambi kokuxhuma ivalvu, ipayipi kumele livuthelwe futhi lihlanzwe ngokucophelela ukuze kuvinjelwe inhlabathi, isihlabathi, kanye nezinye izinsalela ukuthi zingangeni emseleni wevalvu, okungase kubangele umonakalo wangaphakathi.
Indlela Yokuxhuma
Ukuxhumana phakathi kwevalvu kanye nepayipi le-polyethylene (PE) kufanele kwenziwe ngokuxhumanisa izinqe noma ukuxhumanisa nge-electrofusion, futhi kulandelwe ngokuqinile "Imithetho Yobuchwepheshe Yokushisela Amapayipi Egesi E-Polyethylene" (TSG D2002-2006).
Ukufakwa kwe-Protective Sleeve
Ivalvu ifakwe isivikelo (kufaka phakathi isivikelo sesivikelo) kanye nesikrufu sokusebenza. Ubude obufanele besivikelo kufanele bukhethwe ngokusekelwe ekujuleni kokungcwaba. Uma ufaka isivikelo, qiniseka ukuthi indlela yomcibisholo esembozweni sesivikelo ihambisana ngokuphelele nendlela yokuvula yepayipi le-PE kanye nokuvulwa kwesihlalo esingezansi sesivikelo, bese uqondanisa isivikelo ngokuqondile nesivalo sokusebenza sevalvu bese usilungisa ngokuqinile.
Ukusebenza kwe-Vent Valve
Uma kusetshenziswa ivalvu yohlobo lwe-vent double noma i-single vent, izinyathelo zokusebenza zimi kanje: Okokuqala, vala ngokuphelele ivalvu eyinhloko, bese uvula isembozo se-outlet valve, bese uvula ivalvu yokungenisa umoya ukuze ukhiphe umoya; ngemva kokuba ukuvala umoya sekuqediwe, vala ivalvu yokungenisa umoya bese umboza isembozo se-outlet. Qaphela: I-outlet valve yokungenisa umoya isetshenziselwa kuphela ukufaka igesi esikhundleni, ukusampula, noma ukuxhuma ku-flare. Akuvunyelwe ngokuphelele ukuyisebenzisa ekuhlolweni kwengcindezi yesistimu, ekuvutheni, noma ekungeneni kwegesi, ngaphandle kwalokho kungalimaza ivalvu futhi kubangele izingozi zokuphepha.
Izidingo Zokugcwalisa Impahla Emuva
Indawo engaphandle kwesivikelo kufanele igcwaliswe ngenhlabathi noma isihlabathi sokuqala esingenamatshe, amabhlogo engilazi, noma ezinye izinto eziqinile ukuze kugwenywe umonakalo wesivikelo kanye nevalvu.
Imininingwane Yokusebenza
Ivalvu ivunyelwe ukusetshenziswa kuphela esimweni esivulekile noma esivaliwe ngokuphelele. Akuvunyelwe ngokuphelele ukuyisebenzisa ukulawula ingcindezi noma ukubhoboza. Uma usebenza, sebenzisa isikrufu esifanelanayo. Ukujikeleza okuphikisana newashi kuwukuvula, kanti ukujikeleza okuhambisana newashi kuwukuvala.
I-CHUANGRONG iyinkampani ehlanganisiwe embonini yamasheya kanye nokuhweba, eyasungulwa ngo-2005 eyayigxile ekukhiqizweni kwamapayipi e-HDPE, ama-Fittings & Valve, amapayipi e-PPR, ama-Fittings & Valve, ama-PP compression fittings & Valve, kanye nokuthengiswa kwemishini yokushisela amapayipi epulasitiki, amathuluzi amapayipi, i-Pipe Repair Clamp nokunye. Uma udinga imininingwane eyengeziwe, sicela usithinte +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Isikhathi sokuthunyelwe: Jan-28-2026
