Muli ndi valavu ndi chitoliro choyenera, koma cholakwika chimodzi chaching'ono panthawi yoyika chingayambitse kutayikira kosatha. Izi zimakukakamizani kusiya chilichonse ndikuyambanso, ndikuwononga nthawi ndi ndalama.

Kuti muyike valavu ya mpira pa chitoliro cha PVC, choyamba muyenera kusankha mtundu woyenera wolumikizira: kaya valavu yolumikizidwa pogwiritsa ntchito tepi ya PTFE kapena valavu ya soketi pogwiritsa ntchito pulayimale ya PVC ndi simenti. Kukonzekera bwino ndi njira ndizofunikira kwambiri kuti chisindikizocho chisatuluke.

Kupambana kwa ntchito iliyonse ya mapaipi kumadalira pa kulumikizana. Kuchita bwino kumeneku ndi chinthu chomwe ndimakambirana nthawi zambiri ndi ogwirizana nawo monga Budi ku Indonesia, chifukwa makasitomala ake amakumana ndi izi tsiku lililonse. Valavu yotuluka nthawi zambiri si chifukwa chakuti valavu yokha ndi yoipa; ndi chifukwa chakuti cholumikiziracho sichinapangidwe bwino. Nkhani yabwino ndi yakuti kupanga chisindikizo changwiro komanso chokhazikika ndikosavuta ngati mungotsatira njira zingapo zosavuta. Chosankha chofunikira kwambiri chomwe mungachite ndikusankha ngati mungagwiritse ntchito ulusi kapena guluu.

Kodi mungalumikize bwanji valavu ya mpira ku PVC?

Mukuwona ma valve okhala ndi ulusi ndi soketi akupezeka. Kusankha yolakwika kumatanthauza kuti ziwalo zanu sizingakwane, zomwe zingaimitse ntchito yanu mpaka mutapeza valavu yoyenera.

Mumalumikiza valavu ya mpira ku PVC m'njira ziwiri izi: Mumagwiritsa ntchito zolumikizira za ulusi (NPT kapena BSP) pamakina omwe angafunike kuchotsedwa, kapena zolumikizira za socket (solvent weld) kuti mulumikizane ndi guluu wokhazikika komanso womata.

Gawo loyamba nthawi zonse ndikugwirizanitsa valavu yanu ndi makina anu apaipi. Ngati mapaipi anu a PVC ali kale ndi malekezero a ulusi wamwamuna, muyenera valavu wamkazi wopangidwa ndi ulusi. Koma pa ntchito zambiri zatsopano za mapaipi, makamaka pa ulimi wothirira kapena maiwe, mugwiritsa ntchito mavavu a soketi ndi simenti yosungunula. Nthawi zonse ndimapeza kuti zimathandiza gulu la Budi likawonetsa makasitomala tebulo kuti lifotokoze bwino chisankhocho. Njirayo imalamulidwa ndi valavu yomwe muli nayo. Simungathe kumata valavu yopangidwa ndi ulusi kapena kulumikiza valavu ya soketi. Njira yodziwika bwino komanso yokhazikika yolumikizira PVC-to-PVC ndisoketikapenachosungunula chosungunulaNjira imeneyi siimamatirira ziwalozo pamodzi, koma imagwirizanitsa valavu ndi chitolirocho ndi mankhwala ake kukhala pulasitiki imodzi yopanda msoko, yomwe imakhala yolimba kwambiri komanso yodalirika ikachitidwa bwino.

Kusanthula kwa Njira Yolumikizira

Kodi pali njira yolondola yokhazikitsira valavu ya mpira?

Mukuganiza kuti valavu imagwira ntchito mofanana mbali iliyonse. Koma kuyiyika molakwika kungachepetse kuyenda kwa madzi, kupanga phokoso, kapena kupangitsa kuti zisathe kukonzedwanso mtsogolo.

Inde, pali njira yolondola. Vavu iyenera kuyikidwa ndi chogwirira chofikira, union nuts (pa union valve yeniyeni) ziyikidwa kuti zichotsedwe mosavuta, ndipo nthawi zonse zikhale zotseguka panthawi yomatira.

Zinthu zingapo zazing'ono zimasiyanitsa kukhazikitsa kwaukadaulo ndi kwa osachita masewera olimbitsa thupi. Choyamba,kuyang'ana chogwiriraMusanamangirire chilichonse, ikani valavu ndikuwonetsetsa kuti chogwiriracho chili ndi malo okwanira kuti chitembenuzire madigiri 90. Ndawona mavalavu atayikidwa pafupi kwambiri ndi khoma kotero kuti chogwiriracho chimangotseguka pakati. Zikumveka zosavuta, koma ndi cholakwika chofala. Chachiwiri, pa mavalavu athu a True Union, timayikamo ma union nuts awiri. Izi zapangidwa kuti mutha kuzimasula ndikukweza thupi la valavu kuchokera mupaipi kuti mugwiritse ntchito. Muyenera kuyika valavuyo ndi malo okwanira kuti mumasulire ma nati awa. Komabe, gawo lofunika kwambiri ndi momwe valavuyo ilili panthawi yoyikira.

Gawo Lofunika Kwambiri: Sungani Valve Yotseguka

Mukamamatira (kulumikiza zosungunulira) valavu ya soketi, valavuyoyeneraKhalani pamalo otseguka kwathunthu. Zosungunulira zomwe zili mu primer ndi simenti zimapangidwa kuti zisungunule PVC. Ngati valavu yatsekedwa, zosungunulira izi zimatha kulowa mkati mwa thupi la valavu ndikulumikiza mpirawo ndi mankhwala kupita ku dzenje lamkati. Vavuyo idzatsekedwa kosatha. Ndikuuza Budi kuti ichi ndiye chifukwa chachikulu cha "kulephera kwa valavu yatsopano." Si vuto la valavu; ndi cholakwika chokhazikitsa chomwe chingapeweke 100%.

Kodi mungamamatire bwanji valavu ya mpira wa PVC?

Mumayika guluu ndi kulumikiza ziwalozo pamodzi, koma cholumikiziracho chimalephera chifukwa cha kupanikizika. Izi zimachitika chifukwa "kulumikiza" kwenikweni ndi njira ya mankhwala yomwe imafuna njira zinazake.

Kuti mumangirire bwino valavu ya mpira wa PVC, muyenera kugwiritsa ntchito njira ya pulayimale yokhala ndi masitepe awiri ndi simenti. Izi zimaphatikizapo kuyeretsa, kugwiritsa ntchito pulayimale yofiirira pamalo onse awiri, kenako kugwiritsa ntchito simenti ya PVC musanayiphatikize ndi kupotoza.

Njira imeneyi imatchedwa welding ya solvent, ndipo imapanga mgwirizano wolimba kuposa chitolirocho. Kudumpha masitepe ndi chitsimikizo cha kutuluka kwa madzi mtsogolo. Nayi njira yomwe tikuphunzitsira ogulitsa a Budi kuti atsatire:

1. Kuuma Koyenera Choyamba.Onetsetsani kuti pansi pa chitolirocho pali mkati mwa soketi ya valavu.
2. Tsukani Zigawo Zonse Ziwiri.Gwiritsani ntchito nsalu yoyera komanso youma kuti mupukute dothi kapena chinyezi chilichonse kuchokera kunja kwa chitoliro ndi mkati mwa soketi ya valavu.
3. Ikani Primer.Gwiritsani ntchito chopondera popaka utoto wa PVC kunja kwa chitoliro ndi mkati mwa soketi. Mtundu wa utoto umatsuka pamwamba ndikuyamba kufewetsa pulasitiki. Iyi ndi sitepe yofunika kwambiri komanso yosayenera.
4. Ikani simenti.Pamene pulasitala ikadali yonyowa, ikani simenti ya PVC yofanana pamwamba pa malo opalira. Musagwiritse ntchito kwambiri, koma onetsetsani kuti yaphimbidwa mokwanira.
5. Lumikizani ndi Kupotoza.Kankhirani chitolirocho nthawi yomweyo mu soketi mpaka chifike pansi. Mukachikankhira, chitembenuzireni kotala. Kuyenda kumeneku kumafalitsa simenti mofanana ndikuchotsa thovu lililonse la mpweya lomwe lagwidwa.
6. Gwirani ndi Kuchiritsa.Gwirani cholumikiziracho mwamphamvu kwa masekondi pafupifupi 30 kuti chitolirocho chisatuluke. Musakhudze kapena kusokoneza cholumikiziracho kwa mphindi zosachepera 15, ndipo mulole kuti chiume bwino motsatira malangizo a wopanga simenti musanakakamize makinawo.

Kodi mungatani kuti valavu ya mpira wa PVC ikhale yosavuta kutembenuka?

Vavu yanu yatsopano ndi yolimba kwambiri, ndipo mukuopa kuthyola chogwirira. Kulimba kumeneku kungakupangitseni kuganiza kuti vavuyo ndi yolakwika pomwe kwenikweni ndi chizindikiro cha khalidwe.

Valavu yatsopano ya PVC yapamwamba kwambiri ndi yolimba chifukwa mipando yake ya PTFE imapanga chisindikizo chabwino komanso cholimba motsutsana ndi mpirawo. Kuti utembenuke mosavuta, gwiritsani ntchito wrench pa nati yozungulira pansi pa chogwirira kuti mugwiritse ntchito bwino mphamvu yake.

Ndimafunsa funso ili nthawi zonse. Makasitomala amalandira Pntek yathumavavundipo amati ndi ovuta kwambiri kuwatembenuza. Izi ndi zadala. Mphete zoyera mkati, mipando ya PTFE, zimapangidwa molondola kuti zipange chisindikizo cholimba ngati thovu. Kulimba kumeneko ndiko komwe kumaletsa kutuluka kwa madzi. Ma valve otsika mtengo okhala ndi zisindikizo zomasuka amatembenuka mosavuta, komanso amalephera mwachangu. Taganizirani ngati nsapato zatsopano zachikopa; ziyenera kusweka. Njira yabwino yochitira izi ndikugwiritsa ntchito wrench yaying'ono yosinthika pagawo lokhuthala, lalikulu la chogwirira, pansi pake. Izi zimakupatsani mphamvu zambiri popanda kukakamiza chogwirira cha T chokha. Mukachitsegula ndikuchitseka kangapo, chidzakhala chosalala kwambiri.Musagwiritse ntchito WD-40 kapena mafuta ena odzola.Zinthu zimenezi zimatha kuwononga ndi kufooketsa pulasitiki ya PVC ndi zomatira za EPDM O-ring, zomwe zimapangitsa kuti valavu ilephereke pakapita nthawi.

Mapeto

Kukhazikitsa bwino, pogwiritsa ntchito njira yoyenera yolumikizira, kuyang'anira, ndi njira yomatira, ndiyo njira yokhayo yotsimikizira kutiValavu ya mpira wa PVCimapereka moyo wautali, wodalirika, komanso wopanda kutayikira kwa madzi.