Mukuvutika kudalira ma valve a mpira a PVC pa ntchito zanu? Kulephera kamodzi kokha kungayambitse kuwonongeka kwakukulu komanso kuchedwa. Kumvetsetsa kudalirika kwawo ndikofunikira kwambiri popanga chisankho chogula molimba mtima.

Inde, ma valve a PVC ndi odalirika kwambiri pa ntchito zawo, makamaka m'madzi ndi m'makina othirira. Kudalirika kwawo kumachokera ku kapangidwe kosavuta, koma kumadalira kwambiri kuwagwiritsa ntchito motsatira kuchuluka kwa kuthamanga ndi kutentha komwe ali nako, kuyika bwino, komanso kusankha wopanga wabwino.

Mu zaka zanga zoyendetsera kampani yogulitsa zinthu zopangapanga, ndakhala ndi makambirano ambiri okhudza kudalirika kwa zinthu. Nthawi zambiri ndimaganizira za Budi, manejala wodziwa bwino kugula zinthu kuchokera ku kampani yayikulu yogulitsa zinthu ku Indonesia. Iye anali ndi udindo wopeza ma valve ambiri a PVC, ndipo nkhawa yake yayikulu inali yosavuta: “Kimmy, kodi ndingawakhulupirire awa? Mbiri ya kampani yanga imadalira mtundu womwe timapereka.” Ankafuna zambiri kuposa inde kapena ayi. Ankafunika kumvetsetsa “chifukwa” ndi “momwe” zimagwirira ntchito kuti ateteze bizinesi yake ndi makasitomala ake. Nkhaniyi ikufotokoza zomwe ndidagawana naye, kuti inunso mutha kupeza zinthu molimba mtima.

Kodi ma valve a mpira wa PVC ndi odalirika bwanji?

Mumamva nkhani zotsutsana zokhudza momwe valavu ya PVC imagwirira ntchito. Kusankha valavu kutengera mtengo wokha kungayambitse kulephera msanga komanso kukonza ndalama zambiri. Dziwani malire ake enieni kuti muwonetsetse kuti zinthu zikuyenda bwino.

Ma valve a mpira a PVC ndi odalirika kwambiri akagwiritsidwa ntchito moyenera. Amagwira ntchito bwino kwambiri pansi pa 150 PSI ndi 140°F (60°C). Kapangidwe kake kosavuta kamapangitsa kuti akhale olimba pa ntchito monga madzi, koma sagwiritsidwa ntchito pamadzi otentha kwambiri, zinthu zokwawa, kapena mankhwala enaake amphamvu omwe angawononge PVC.

Budi atandifunsa za kudalirika, ndinamuuza kuti aganizire ngati kusankha chida choyenera pantchitoyo. Simungagwiritse ntchito screwdriver kugoba msomali. Mofananamo,Kudalirika kwa valavu ya PVCndi yabwino kwambiri, koma mkati mwa zenera lake logwirira ntchito lokha. Zigawo zofunika zimagwirira ntchito limodzi kuti zipereke magwiridwe antchito awa. Thupi la PVC limapereka umphumphu wa kapangidwe kake komanso kukana dzimbiri, pomwe zisindikizo zamkati, zomwe nthawi zambiri zimapangidwa kuchokera kuPTFE (Teflon), onetsetsani kuti zitsekedwe bwino. Ma stem O-rings, nthawi zambiriEPDM kapena Viton (FKM), tetezani kutuluka kwa madzi m'dera logwirira. Mukasankha valavu kuchokera kwa wopanga wodziwika bwino, zipangizozi ndi zapamwamba kwambiri ndipo zimakwaniritsa miyezo yapadziko lonse lapansi monga ASTM, zomwe zimatsimikizira magwiridwe antchito enaake. Ndi kuphatikiza kwa kapangidwe kosavuta ndi zipangizo zabwino komwe kumazipangitsa kukhala ntchito yodalirika yamafakitale ambiri.

Zinthu Zofunika ndi Kapangidwe

Kudalirika kumayamba ndi zipangizozo. PVC (Polyvinyl Chloride) mwachibadwa imalimbana ndi dzimbiri lochokera ku madzi, mchere, ndi ma acid ndi maziko ambiri. Mpira womwe uli mkati umazungulira bwino motsutsana ndi mipando ya PTFE, chinthu chodziwika kuti chimakhala ndi kukangana kochepa. Izi zikutanthauza kuti sichiwonongeka kwambiri pa maulendo ambirimbiri.

Malire Ogwira Ntchito Ndi Ofunika Kwambiri

Zolephera zambiri zomwe ndawona zimachitika pamene valavu ikakankhira mopitirira malire ake. Kupanikizika kwakukulu kumatha kukakamiza thupi la valavu, pomwe kutentha kwambiri kumatha kufewetsa PVC, zomwe zimapangitsa kuti iwonongeke ndikutuluka. Nthawi zonse yang'anani zomwe wopanga adalemba pa thupi la valavu.

Kuyerekeza Kudalirika

Kodi ubwino wa valavu ya mpira wa PVC ndi wotani?

Mukufuna valavu yotsika mtengo pogula zinthu zambiri. Koma mukuopa kuti mtengo wotsika umatanthauza kuti ndi wotsika. Zoona zake n'zakuti, mavalavu a PVC amapereka ubwino wambiri.

Ubwino waukulu wa valavu ya mpira wa PVC ndi mtengo wake wotsika, kukana dzimbiri, komanso kapangidwe kake kopepuka. Ndi kosavuta kuyika ndikugwiritsa ntchito ndi chogwirira chosavuta chozungulira kotala, zomwe zimapangitsa kuti ikhale chisankho chogwira ntchito bwino komanso chosasamalira bwino pazinthu zambiri zowongolera madzi.

Kwa woyang'anira zogula ngati Budi, ubwino uwu umathetsa mavuto ake akuluakulu:kukonza magwiridwe antchitondindalama zoyendetseraAkapeza ma valve a ntchito zikwizikwi, kuyambira mapaipi ang'onoang'ono okhala m'nyumba mpaka kuthirira kwakukulu kwa ulimi, ubwino waPVCZimveka bwino. Mtengo wotsika umamuthandiza kukhala wopikisana kwambiri, pomwe kudalirika komwe ndatchula kale kumamutsimikizira kuti sakuthana ndi madandaulo kapena kubweza nthawi zonse. Kwa zaka zambiri, ndawona makasitomala ngati Budi akuthandiza makasitomala awo, omwe ndi makontrakitala, kusunga nthawi ndi ndalama zambiri pantchito pongosintha kupita ku PVC komwe kuli koyenera. Ubwino wake umapitirira mtengo wogulira woyamba; umakhudza unyolo wonse wogulira, kuyambira pa mayendedwe ndi malo osungiramo katundu mpaka kukhazikitsa komaliza. Ndi chisankho chanzeru chomwe chimapereka phindu pa sitepe iliyonse.

Kugwiritsa Ntchito Ndalama Moyenera

Uwu ndiye ubwino woonekeratu. Pa kukula komweko, valavu ya mpira wa PVC ikhoza kukhala yochepa poyerekeza ndi mtengo wa valavu ya mkuwa kapena yachitsulo chosapanga dzimbiri. Kwa Budi, kugula zinthu zambiri kumatanthauza kuti ndalama zimenezi zimasungidwa kwambiri. Izi zimathandiza kampani yake kupereka mitengo yopikisana kwa makontrakitala ndi ogulitsa, kuwathandiza kukulitsa malonda.

Kukana Kwambiri Kudzimbiritsa

Mu nyengo yonyowa ngati ya ku Indonesia, ma valve achitsulo amatha kuwononga. PVC siigwira ntchito ndi dzimbiri ndipo imalimbana ndi mankhwala osiyanasiyana. Izi zikutanthauza kuti imakhala nthawi yayitali yogwira ntchito komanso sipakufunika kusinthidwa, zomwe zimachepetsa ndalama zomwe zimagwiritsidwa ntchito nthawi yayitali ndikuwonetsetsa kuti makinawo ndi olimba.

Kukhazikitsa Kosavuta ndi Kugwira Ntchito

Kodi ma valve a mpira wa PVC amalephera?

Mukuda nkhawa ndi kuthekera kwa valavu yosweka mwadzidzidzi komanso yoopsa. Vavu imodzi yoyipa ikhoza kuyimitsa ntchito yonse. Mutha kupewa izi pomvetsetsa chifukwa chake komanso momwe zimalepherera.

Inde, ma valve a mpira wa PVC amatha kulephera ndipo amalephera. Komabe, kulephera nthawi zambiri kumachitika chifukwa cha zinthu zakunja, osati vuto la valavu yokha. Zifukwa zofala kwambiri ndi kuwonongeka kwakuthupi, kugwiritsa ntchito valavu kunja kwa malire ake a kuthamanga kapena kutentha, kusagwirizana kwa mankhwala, ndi kuwonongeka kwa UV.

Ndinagwirapo ntchito ndi kasitomala wina pa ntchito yayikulu yothirira yomwe inalephera kangapo. Anakhumudwa, poganiza kuti wagula ma valve oipa. Nditapita kumalo ogwirira ntchito, ndinapeza kuti vuto silinali ma valve, koma kukhazikitsa. Ogwira ntchito anali kugwiritsa ntchito ma wrench akuluakulu ndikumangirira ma valve olumikizidwa mwamphamvu kwambiri, zomwe zimapangitsa kuti ming'alu ya tsitsi ikhale m'ma valve. Ming'alu yaying'ono iyi imagwira ntchito kwakanthawi koma imatha kulephera milungu ingapo pambuyo pa kupanikizika kwabwinobwino. Mwa kupereka maphunziro osavuta okhudza kumangirira dzanja komanso kutembenuza kotala, tinathetsa vutoli kwathunthu. Izi zinandiphunzitsa phunziro lofunika: kulephera nthawi zambiri ndi chizindikiro cha vuto lomwe lingapeweke. Kwa Budi, kupereka chidziwitso chamtunduwu kwa makasitomala ake kunakhala njira yowonjezera phindu ndikumanga kukhulupirika.

Zolakwika Zowonongeka Pakuthupi ndi Kukhazikitsa

Ichi ndiye chifukwa chachikulu chomwe chimachititsa kuti zinthu zilephereke chomwe ndimachiwona. Kumangika kwambiri kwa ma thread ndi cholakwika chachikulu. Chinanso ndi kusalola mapaipi kuti azigwira bwino ntchito, zomwe zimapangitsa kuti valavu ikhale yovuta. Kuzizira ndi mdani wamkulu; madzi amakula akazizira, ndipo amatha kuswa mosavuta valavu ya PVC kuchokera mkati.

Kuwonongeka kwa Zinthu

Zovala za Chisindikizo ndi Zopangira

Ngakhale kuti ndi zolimba, zomatira zamkati zimatha kutha pambuyo pa maulendo ambirimbiri, ngakhale izi sizichitika kawirikawiri m'magwiritsidwe ntchito ambiri. Nthawi zambiri, zinyalala monga mchenga kapena grit zimalowa mumzere ndikukanda mipando ya PTFE kapena mpirawo. Izi zimapangitsa kuti madzi azituluka ngakhale valavu itatsekedwa. Fyuluta yosavuta yopita kumtunda ingalepheretse kulephera kwamtunduwu.

Kodi n’chiyani chimayambitsa kuti valavu ya mpira wa PVC ituluke?

Kudontha pang'onopang'ono kuchokera ku valavu ndi vuto lofala koma lalikulu. Kudonthako pang'ono kumeneku kungayambitse kuwonongeka kwa madzi, kutayika kwa zinthu, komanso ngozi zachitetezo. Kudziwa chomwe chimayambitsa vutoli ndikofunikira.

Kutuluka kwa ma valve a mpira wa PVC nthawi zambiri kumachitika chifukwa cha chimodzi mwa zinthu zitatu: zomangira zamkati zomwe zawonongeka (ma O-rings kapena mipando), kuyika kosayenera komwe kumabweretsa kulumikizana koyipa, kapena ming'alu m'thupi la valve yokha. Zinyalala zomwe zili mkati mwa valve zimathanso kuletsa kutseka kwathunthu.

Kasitomala akanena za kutuluka kwa madzi, nthawi zonse ndimamufunsa kuti adziwe komwe kwachokera. Malo omwe kutuluka kwa madziwo kumakuuzani chilichonse. Kodi kutuluka kwa madziwo kuchokera pomwe chogwiriracho chimalowa m'thupi? Ndi nkhani yakale kwambiri.vuto la mphete ya tsindeKodi ikutuluka kuchokera pomwe valavu imalumikizana ndi chitoliro? Izi zikusonyeza cholakwika choyika. Kapena kodi madzi akadali kuyenda pamene valavu yatsekedwa? Izi zikutanthauza kuti chisindikizo chamkati chawonongeka. Kumvetsa izi zosiyanamalo otayira madzindikofunikira kwambiri pothetsa mavuto. Kwa gulu la Budi, kutha kufunsa mafunso awa kumawathandiza kupereka chithandizo chabwino kwa makasitomala, kuzindikira mwachangu ngati ndi vuto la malonda (losowa kwambiri) kapena vuto la kukhazikitsa kapena kugwiritsa ntchito (lofala kwambiri).

Kutuluka kwa Valve Stem

Tsinde ndi shaft yomwe imalumikiza chogwirira ndi mpira. Imatsekedwa ndi mphete imodzi kapena ziwiri za O. Pakapita nthawi, kapena chifukwa cha mankhwala osagwirizana, mphete za O izi zimatha kuwonongeka ndikutaya mphamvu yawo yotsekera, zomwe zimapangitsa kuti madzi azituluka pang'onopang'ono kuchokera kuzungulira chogwirira. Pa ma valve ena a "unyolo weniweni", nati yonyamulira yomwe imagwira gawo la tsinde imatha kumangidwa kuti ikanikize mphete za O ndikuletsa kutuluka pang'ono.

Kutaya kwa madzi pa Ma Connections

Izi zonse ndi zokhudza kukhazikitsa. Pa zolumikizira zosungunulira ndi zomatira (zomatira), kutuluka kwa madzi kumachitika ngati simenti yolakwika idagwiritsidwa ntchito, ngati chitoliro ndi cholumikizira sizinayeretsedwe bwino, kapena ngati simenti sinapatsidwe nthawi yokwanira kuti iume isanayambe kukanikiza chingwecho. Pa zolumikizira zolumikizidwa ndi ulusi, kutuluka kwa madzi kumachitika chifukwa cha kuuma pang'ono, kuuma kwambiri (zomwe zimayambitsa ming'alu), kapena kusagwiritsa ntchito tepi yokwanira ya PTFE kuti itseke ulusiwo.

Kutuluka Pambuyo pa Chisindikizo cha Mpira

Mapeto

Mwachidule, ma valve a mpira a PVC amapereka kudalirika komanso phindu lalikulu akagwiritsidwa ntchito moyenera. Kumvetsetsa malire awo ndikuonetsetsa kuti ayikidwa bwino ndiye chinsinsi chogwiritsa ntchito mphamvu zawo zonse.

kimmy

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