Ivalvu yebhola ye-polyethylene (PE) engaphantsi komhlaba yicandelo lolawulo eliphambili elenzelwe ngokukodwa iinkqubo zemibhobho ye-polyethylene (PE) engaphantsi komhlaba kwigesi kunye nokunikezelwa kwamanzi ezidolophini. Le valve inesakhiwo seplastiki epheleleyo (PE), apho izinto eziphambili ziyi-polyethylene (PE100 okanye PE80), kunye nomlinganiselo oqhelekileyo wobukhulu (SDR) we-11. Inamandla okuxhathisa ukugqwala, ukulwa nokwaluphala, kunye nokusebenza kokuvala. Uphawu oluphambili loyilo kukudibanisa ivalvu ephambili kunye neevalvu ezimbini zomoya, okuvumela ukuvulwa nokuvalwa okukhuselekileyo nokulula kwenkqubo yemibhobho, kunye nemisebenzi yokungenisa umoya kunye nokutshintsha okuphakathi. Ivalvu ingcwatywe ngqo phantsi komhlaba kwaye ingasetyenziswa ukusuka kumphezulu ngesingxobo esikhuselayo kunye nesitshixo esikhethekileyo, okwenza kube lula kakhulu inkqubo yolondolozo. Yi-actuator efanelekileyo yokuqinisekisa ukusebenza okukhuselekileyo nokulula kweenethiwekhi zemibhobho ye-PE engaphantsi komhlaba.
Iimpawu zokusebenza
Ukutywina Okugqwesileyo: Isebenzisa isakhiwo sesitywina esiziqinisayo ukuqinisekisa ukuba akukho kuvuza ngaphakathi nangaphandle kwevalvu, nto leyo enika ukhuseleko nokuthembeka.
Ukuqina Okuhlala Ixesha Elide: Isakhiwo esenziwe ngeplastiki yonke asifuni unyango lokulwa nokugqwala, ukuthintela amanzi, okanye unyango lokulwa nokwaluphala, kwaye sinobomi benkonzo obufikelela kwiminyaka engama-50 phantsi kweemeko zoyilo.
Ukusebenza okulula: Ilula kwaye ine-torque encinci yokuvula nokuvala, kwaye ixhotyiswe ngesikrufu esikhethekileyo sokusebenza lula emhlabeni.
Ukufakwa okulula kunye nokugcinwa: Ingaqhagamshelwa kwiipayipi ze-PE kusetyenziswa iindlela eziqhelekileyo zokudibanisa i-electrofusion okanye i-butt fusion, kunye nokusebenza kakuhle kokwakha. Ukugcinwa rhoqo kufuna kuphela imisebenzi yokuvula nokuvala rhoqo kwiinyanga ezintathu.
Umsebenzi wokungenisa umoya kabini: Idityaniswe nee-dual vent ports, inceda ukukhutshwa ngokukhuselekileyo kwegesi eseleyo kwicandelo lepayipi elisezantsi emva kokuvala ivalvu ephambili, olu luphawu olubalulekileyo lokhuseleko lokugcinwa, ukuhlaziywa, okanye ukuphathwa kwengxakeko.
Iimeko Zokusebenza
Izixhobo Ezisebenzayo: Igesi yendalo ecociweyo, igesi yepetroleum enyibilikisiweyo, igesi yokwenziwa, kwaye ikwafanelekile kwiinkqubo zokubonelela ngamanzi ezidolophini.
Uxinzelelo Oluqhelekileyo: I-PN ≤ 0.5 MPa (ehambelana noxinzelelo lwenkqubo yepayipi ye-PE eqhagamshelweyo), enoxinzelelo oluphezulu lokusebenza oluphindwe kayi-1.5 kunoxinzelelo lovavanyo lokutywina (ukuya kuthi ga kwi-1.2 MPa) ngokusekelwe kwimigangatho yamazwe ngamazwe, kunye novavanyo lokutywina oluphantsi lwe-28 KPa oluhambelana nemigangatho ye-ASME ukuqinisekisa ukusebenza kwevalvu kunye namandla ayo.
Ubushushu bokusebenza: -20°C ukuya ku +40°C (uxinzelelo olusebenzayo oluvumelekileyo kumaqondo obushushu ahlukeneyo kufuneka luhambelane nemigangatho yezixhobo zombhobho ze-PE ezihambelanayo).
Ububanzi obuqhelekileyo (dn): Ifumaneka kwiinkcukacha ezahlukeneyo, kuquka i-32, 40, 50, 63, 75, 90, 110, 125, 160, 180, 200, 250, 315, 355, kunye ne-400.
Imigangatho
GB/T 15558.3-2008
I-ISO4437-4: 2015
EN1555-4: 2011
ASEME B 16.40:2013
Ukuphatha kunye nokuhlola
Xa uphatha iivalvu, maziphakanyiswe zize zibekwe ngobunono. Akuvumelekanga ngokungqongqo ukungqubana okanye ukubetha naliphi na ilungu lomzimba wevalvu ukuthintela umonakalo. Ngaphambi kokufakwa, ukusebenza kokutywina kwevalvu kufuneka kuhlolwe. Indawo yokuvavanya kufuneka ibe ngumoya okanye i-nitrogen, kwaye umxholo wokuhlola kufuneka uquke ukutywina ngasekhohlo, ukutywina ngasekunene, kunye nokusebenza kokutywina ngokupheleleyo, okufuneka kuhambelane nomgangatho we-GB/T13927-1992.
Indawo yoFakelo
Iivalvu kufuneka zifakwe kwisiseko esixineneyo, kwaye ngexesha lokufakwa, ivalvu kufuneka ivuleke ngokupheleleyo.
Ukucocwa kwemibhobho
Ngaphambi kokudibanisa ivalvu, umbhobho kufuneka uvuthelwe kwaye ucocwe ngokuqinileyo ukuze kuthintelwe umhlaba, isanti, kunye nezinye izinto ezingafunekiyo ukuba zingangeni kumjelo wevalvu, nto leyo enokubangela umonakalo ngaphakathi.
Indlela yoQhagamshelo
Uqhagamshelo phakathi kwevalvu kunye nombhobho we-polyethylene (PE) kufuneka lwenziwe ngokudityaniswa kwe-butt okanye uqhagamshelo lwe-electrofusion, kwaye lulandele ngokungqongqo "Imithetho yoBugcisa yokuWelda iiPipelines zePolyethylene Gas" (TSG D2002-2006).
Ukufakwa kweSleeve yoKhuseleko
Ivalvu ixhotyiswe ngesingxobo sokukhusela (kuquka nesigqubuthelo sesingxobo sokukhusela) kunye nesikrufu sokusebenza. Ubude obufanelekileyo besingxobo sokukhusela kufuneka bukhethwe ngokusekelwe kubunzulu bokungcwaba. Xa ufaka isingxobo sokukhusela, qiniseka ukuba ulwalathiso lwetolo kwisigqubuthelo sesingxobo sokukhusela luhambelana ngokupheleleyo nolwalathiso lokuvula lombhobho we-PE kunye nokuvulwa kwesihlalo esisezantsi sesingxobo sokukhusela, uze ulungelelanise isingxobo sokukhusela ngokuthe nkqo nesigqubuthelo sokusebenza sevalvu uze usilungise ngokuqinileyo.
Ukusebenza kweValve yoMoya
Ukuba kusetyenziswa ivalvu yomoya ovulileyo okanye ivalvu yohlobo lwe-single vent, amanyathelo okusebenza ngala alandelayo: Okokuqala, vala ngokupheleleyo ivalvu ephambili, uze uvule isiciko se-outlet valve, uze uvule ivalvu yomoya ukuze kungene umoya; emva kokuba kugqityiwe ukukhupha umoya, vala ivalvu yomoya uze uvale isiciko se-outlet. Qaphela: I-outlet valve yomoya isetyenziselwa kuphela ukutshintshwa kwegesi, ukusampula, okanye ukudibanisa ne-flare. Akuvumelekanga ngokungqongqo ukuyisebenzisa kuvavanyo loxinzelelo lwenkqubo, ukuvuthela, okanye ukungenisa igesi, kungenjalo inokonakalisa ivalvu kwaye ibangele iingozi zokhuseleko.
Iimfuneko zokuzalisa imali
Indawo engaphandle kwesingxobo sokukhusela kufuneka izaliswe ngumhlaba okanye isanti yokuqala engenamatye, iibhloko zeglasi, okanye ezinye izinto eziqinileyo ukuze kuthintelwe ukonakala kwesingxobo sokukhusela kunye nevalvu.
Iinkcukacha zokusebenza
Ivalvu ivumelekile ukusetyenziswa kuphela xa ivuliwe ngokupheleleyo okanye ivaliwe ngokupheleleyo. Akuvumelekanga ngokupheleleyo ukuyisebenzisa ukulawula uxinzelelo okanye ukuqhobosha. Xa usebenza, sebenzisa isikrufu esihambelanayo. Ukujikeleza ngaxeshanye kwewotshi kukuvula, kwaye ukujikeleza ngaxeshanye kwewotshi kukuvala.
I-CHUANGRONG yinkampani edibeneyo kushishino lwezabelo kunye norhwebo, eyasekwa ngo-2005 eyayigxile ekuvelisweni kweePipe zeHDPE, iiFittings & Valves, iiPPR Pipes, iiFittings & Valves, iiPP compression fittings & Valves, kunye nokuthengiswa koomatshini bePlastic Pipe Welding, Izixhobo zePipe, iPipe Repair Clamp njalo njalo. Ukuba ufuna iinkcukacha ezithe vetshe, nceda unxibelelane nathi +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Ixesha leposi: Jan-28-2026
