Valavu ya mpweya wa polyethylene (PE) pansi pa nthaka ndi gawo lofunikira lowongolera lomwe lapangidwira makamaka mapaipi a polyethylene (PE) pansi pa nthaka m'mafakitale a gasi ndi madzi. Valavu iyi ili ndi kapangidwe ka pulasitiki (PE), ndipo chinthu chachikulu ndi polyethylene (PE100 kapena PE80), ndi chiŵerengero cha muyezo (SDR) cha 11. Ili ndi mphamvu yabwino kwambiri yolimbana ndi dzimbiri, yoletsa kukalamba, komanso yotseka. Mbali yaikulu ya kapangidwe kake ndi kuphatikiza kwa valavu yayikulu ndi ma valavu awiri otulutsa mpweya, zomwe zimathandiza kutsegula ndi kutseka bwino dongosolo la mapaipi, komanso ntchito zotsegula mpweya wapakati ndi kusintha. Vavuyi imakwiriridwa mwachindunji pansi pa nthaka ndipo imatha kugwiritsidwa ntchito kuchokera pamwamba ndi chogwirira choteteza ndi kiyi yapadera, zomwe zimapangitsa kuti ntchito yokonza ikhale yosavuta. Ndi actuator yoyenera kuonetsetsa kuti maukonde a mapaipi a pansi pa nthaka akuyenda bwino komanso motetezeka.
Makhalidwe Ogwira Ntchito
Kutseka Kwapamwamba: Kumagwiritsa ntchito kapangidwe ka chisindikizo choyandama chomwe chimadzilimbitsa chokha kuti chitsimikizire kuti palibe kutuluka mkati ndi kunja kwa valavu, zomwe zimapangitsa kuti pakhale chitetezo komanso kudalirika.
Kukhalitsa Kwanthawi Yaitali: Kapangidwe kake ka pulasitiki kokha sikafuna mankhwala oletsa dzimbiri, oletsa madzi, kapena oletsa ukalamba, ndipo kamakhala ndi moyo wautali wa zaka 50 malinga ndi momwe kamapangidwira.
Kugwiritsa Ntchito Mosavuta: Kopepuka ndi mphamvu yaying'ono yotsegulira ndi kutseka, komanso yokhala ndi wrench yapadera yogwiritsira ntchito pansi mosavuta.
Kukhazikitsa ndi Kusamalira Kosavuta: Kungalumikizidwe ndi mapaipi a PE pogwiritsa ntchito njira zodziwika bwino za electrofusion kapena butt fusion, ndi ntchito yabwino kwambiri yomanga. Kukonza nthawi zonse kumafuna ntchito yotsegula ndi kutseka miyezi itatu iliyonse.
Ntchito Yotulutsira Mpweya Wawiri: Yophatikizidwa ndi ma vent port awiri, zomwe zimathandiza kutulutsa mpweya wotsalira bwino m'gawo la mapaipi otsikira pambuyo potseka valavu yayikulu, yomwe ndi chitetezo chofunikira kwambiri pakukonza, kukonzanso, kapena kusamalira mwadzidzidzi.
Mikhalidwe Yogwirira Ntchito
Zida Zogwiritsidwa Ntchito: Gasi wachilengedwe woyeretsedwa, gasi wamafuta osungunuka, gasi wopangidwa, komanso woyenera kugwiritsa ntchito m'machitidwe operekera madzi m'mizinda.
Kupanikizika Kodziwika: PN ≤ 0.5 MPa (yogwirizana ndi kupanikizika kwa makina olumikizira mapaipi a PE), ndi kupanikizika kwakukulu kogwira ntchito kowirikiza 1.5 kuposa kupsinjika koyesa kutsekereza (mpaka 1.2 MPa) kutengera miyezo yapadziko lonse lapansi, ndi kuyesedwa kotsika kwa kutsekereza kotsika kwa 28 KPa motsatira miyezo ya ASME kuti zitsimikizire kutsekereza ndi mphamvu ya valavu.
Kutentha kwa Ntchito: -20°C mpaka +40°C (kuthamanga kovomerezeka kogwira ntchito pa kutentha kosiyana kuyenera kutsatira miyezo yoyenera ya zinthu za chitoliro cha PE).
Diamita Yodziwika (dn): Imapezeka m'njira zosiyanasiyana, kuphatikizapo 32, 40, 50, 63, 75, 90, 110, 125, 160, 180, 200, 250, 315, 355, ndi 400.
Miyezo
GB/T 15558.3-2008
ISO4437-4: 2015
EN1555-4:2011
ASEME B 16.40:2013
Kusamalira ndi Kuyang'anira
Mukagwira ma valve, ayenera kunyamulidwa ndikuyikidwa mofatsa. N'koletsedwa kwambiri kugongana kapena kugunda gawo lililonse la thupi la valve kuti lisawonongeke. Musanayike, magwiridwe antchito a valve ayenera kuyang'aniridwa. Choyezera chiyenera kukhala mpweya kapena nayitrogeni, ndipo kuchuluka kwa zowunikira kuyenera kuphatikizapo kutseka kumanzere, kutseka kumanja, ndi magwiridwe antchito otseka kwathunthu, zomwe ziyenera kutsatira muyezo wa GB/T13927-1992.
Malo Oyikira
Ma valve ayenera kuyikidwa pa maziko olimba bwino, ndipo panthawi yoyika, valve iyenera kukhala yotseguka kwathunthu.
Kuyeretsa Mapaipi
Musanalumikize valavu, payipi iyenera kuphwanyidwa bwino ndikutsukidwa kuti dothi, mchenga, ndi zinyalala zina zisalowe mu valavu, zomwe zingayambitse kuwonongeka kwa mkati.
Njira Yolumikizira
Kulumikizana pakati pa valavu ndi payipi ya polyethylene (PE) kuyenera kupangidwa ndi kulumikizana kwa butt fusion kapena electrofusion, ndikutsatira mosamalitsa "Malamulo Aukadaulo Othandizira Kuweta Mapaipi a Gasi a Polyethylene" (TSG D2002-2006).
Kukhazikitsa kwa Sleeve Yoteteza
Valavu ili ndi chivundikiro choteteza (kuphatikizapo chivundikiro choteteza) ndi wrench yogwirira ntchito. Kutalika koyenera kwa chivundikiro choteteza kuyenera kusankhidwa kutengera kuya kwa malo osungiramo zinthu. Mukayika chivundikiro choteteza, onetsetsani kuti muvi womwe uli pa chivundikiro choteteza chikugwirizana kwathunthu ndi komwe payipi ya PE imatsegulira komanso komwe pansi pake pali chivundikiro choteteza, kenako gwirizanitsani chivundikiro chotetezacho molunjika ndi chivundikiro chogwiritsira ntchito valavu ndikuchikonza mwamphamvu.
Kugwira ntchito kwa Vent Valve
Ngati valavu yotulutsa mpweya iwiri kapena yamtundu umodzi imagwiritsidwa ntchito, njira zogwirira ntchito ndi izi: Choyamba, tsekani valavu yayikulu mokwanira, kenako tsegulani chivundikiro cha valavu yotulutsira mpweya, kenako tsegulani valavu yotulutsira mpweya kuti mutulutse mpweya; mukamaliza kutulutsa mpweya, tsekani valavu yotulutsira mpweya ndikuphimba chivundikiro cha mpweya. Dziwani: Chotulutsira mpweya chimagwiritsidwa ntchito kokha posintha mpweya, kutengera zitsanzo, kapena kulumikiza ku flare. N'koletsedwa kugwiritsa ntchito poyesa kuthamanga kwa mpweya, kupumira, kapena kulowetsa mpweya, apo ayi zitha kuwononga valavu ndikuyambitsa ngozi zachitetezo.
Zofunikira pa Kudzaza Zinthu Zotsalira
Malo omwe ali kunja kwa chivundikiro choteteza ayenera kudzazidwa ndi dothi loyambirira kapena mchenga wopanda miyala, zipika zagalasi, kapena zinthu zina zolimba kuti asawononge chivundikiro choteteza ndi valavu.
Mafotokozedwe a Ntchito
Vavu imaloledwa kugwiritsidwa ntchito pokhapokha ngati yatsegulidwa kapena yatsekedwa kwathunthu. N'koletsedwa kugwiritsa ntchito poletsa kuthamanga kapena kupopera mphamvu. Mukamagwiritsa ntchito, gwiritsani ntchito wrench yofananira. Kuzungulira mozungulira wotchi ndi kotsegulira, ndipo kuzungulira mozungulira wotchi ndi kotseka.
CHUANGRONG ndi kampani yogwirizana ndi makampani ogulitsa magawo ndi malonda, yomwe idakhazikitsidwa mu 2005 yomwe idayang'ana kwambiri pakupanga Mapaipi a HDPE, Zolumikizira ndi Ma Vavu, Mapaipi a PPR, Zolumikizira ndi Ma Vavu, Zolumikizira ndi Ma Vavu a PP, komanso kugulitsa makina olumikizira mapaipi apulasitiki, Zida za mapaipi, Cholumikizira Chokonzera Mapaipi ndi zina zotero. Ngati mukufuna zambiri, chonde titumizireni uthenga +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Nthawi yotumizira: Januwale-28-2026
