Valavu ya mpira wa PVC ili ndi magulu awa:Valavu ya mpira yaying'ono ya PVC,
Valavu ya mpira wa octagonal wa PVC, Valavu ya mpira wa PVC yokhala ndi zidutswa ziwiri, Valavu ya gulugufe ya PVC,
Valavu ya mpira wa PVC yogwirizana, Valavu ya chipata cha PVC, Valavu yowunikira ya PVC, Valavu ya phazi la PVC, ndi zina zotero.
Chidziwitso choyambira cha valavu ya mpira wa PVC
Ma valve a mpira wa PVC angagwiritsidwe ntchito kulamulira ndikuwongolera kuyenda kwa madzi kuwonjezera pa kugwiritsidwa ntchito makamaka polumikiza kapena kulumikiza mapaipi. Amapereka ubwino wotsatirawu kuposa ma valve ena. Palibe kukana kwa madzi. Pakati pa ma valve onse, valve ya mpira imakhala ndi kukana kochepa kwa madzi. Kukana kwake kwa madzi ndi kochepa kwambiri, ngakhale kuti ndi valve ya mpira yokhala ndi mainchesi ochepa.
Mtundu watsopano wavalavu ya mpira yopangidwa ndi UPVCidapangidwa kuti ikwaniritse zofunikira za madzi osiyanasiyana owononga mapaipi. Ubwino wa thupi la valavu ndi monga kulemera kwake kochepa, kukana dzimbiri kwambiri, kapangidwe kakang'ono, mawonekedwe okongola, kusavuta kuyiyika, kugwiritsa ntchito mitundu yosiyanasiyana, kapangidwe kaukhondo komanso kopanda poizoni, kukana kuvala, kusavuta kusokoneza, komanso kusamalitsa mosavuta.
PPR, PVDF, PPH,CPVC, ndi zipangizo zina zapulasitiki zimagwiritsidwanso ntchito popanga ma valve a pulasitiki a mpira kuwonjezera pa PVC. Ma valve a mpira opangidwa ndi PVC ali ndi kukana dzimbiri kwapadera. Pogwiritsa ntchito F4, mphete yotsekera imatsekeredwa. Imakhala nthawi yayitali chifukwa cha kukana dzimbiri kwabwino. Kuzungulira kothandiza komwe kumasinthasintha.
Monga valavu yolumikizira mpira,Valavu ya mpira wa PVCimapereka magwero ochepa otayikira madzi, mphamvu zambiri, ndipo ndi yosavuta kusonkhanitsa ndikuchotsa. Kukhazikitsa ndi kugwiritsa ntchito ma valve a mpira: Kuti mupewe kutayikira komwe kumachitika chifukwa cha kusokonekera kwa ma flange, mabolt ayenera kumangidwa mofanana pamene ma flange onse awiri alumikizidwa ku payipi. Tembenuzani chogwirira mozungulira kuti mutseke, mosemphanitsa kuti mutsegule. Ingagwiritsidwe ntchito kokha poletsa ndi kudutsa, ndipo kusintha kwa kayendedwe ka madzi sikugwira ntchito. Zakumwa zokhala ndi tinthu tolimba zimatha kukanda mosavuta pamwamba pa bolodi.
Mbiri ya Ma Vavu a Mpira
Chitsanzo choyambirira chofanana ndi chavalavu ya mpiraNdi valavu yopangidwa ndi John Warren mu 1871. Ndi valavu yokhala ndi chitsulo yokhala ndi mpira wa mkuwa ndi mpando wa mkuwa. Pomaliza pake Warren adapereka patent yake ya kapangidwe ka valavu ya mpira wa mkuwa kwa John Chapman, mtsogoleri wa Chapman Valve Company. Kaya chifukwa chake chinali chiyani, Chapman sanagwiritse ntchito kapangidwe ka Warren. M'malo mwake, iye ndi opanga mavalavu ena akhala akugwiritsa ntchito mapangidwe akale kwa zaka zambiri.
Ma valve a mpira, omwe amadziwikanso kuti ma valve a ball cock, adagwira ntchito panthawi ya Nkhondo Yachiwiri Yapadziko Lonse. Pa nthawiyi, mainjiniya adapanga kuti agwiritsidwe ntchito mumakina amafuta a ndege zankhondo. Pambuyo pa kupambana kwamavavu a mpiraMu Nkhondo Yachiwiri Yapadziko Lonse, mainjiniya anagwiritsa ntchito ma valve a mpira ku mafakitale.
Chimodzi mwa zinthu zofunika kwambiri zokhudzana ndi ma valve a mpira m'zaka za m'ma 1950 chinali kupanga Teflon ndi kugwiritsa ntchito kwake ngati valavu ya mpira. Pambuyo pa kupanga bwino kwa Teflon, mabizinesi ambiri monga DuPont adapikisana kuti agwiritse ntchito, chifukwa ankadziwa kuti Teflon ikhoza kubweretsa phindu lalikulu pamsika. Pomaliza pake, makampani ambiri adatha kupanga ma valve a Teflon. Ma valve a mpira wa Teflon ndi osinthasintha ndipo amatha kupanga zisindikizo zabwino mbali ziwiri. Mwa kuyankhula kwina, ndi a mbali ziwiri. Amathanso kutayikira. Mu 1958, Howard Freeman anali wopanga woyamba kupanga valavu ya mpira yokhala ndi mpando wa Teflon wosinthasintha, ndipo kapangidwe kake kanapatsidwa patent.
Masiku ano, ma valve a mpira apangidwa m'njira zambiri, kuphatikizapo kugwirizana kwawo ndi zinthu zomwe angathe kugwiritsa ntchito. Kuphatikiza apo, amatha kugwiritsa ntchito makina a CNC ndi mapulogalamu apakompyuta (monga Button model) kuti apange ma valve abwino kwambiri. Posachedwapa, opanga ma valve a mpira adzatha kupereka zosankha zambiri pazinthu zawo, kuphatikizapo kapangidwe ka aluminiyamu, kuchepa kwa kuwonongeka komanso kuthekera kwakukulu kozungulira, zomwe zimathandiza ogwiritsa ntchito kudutsa madzi osiyanasiyana kudzera mu valve pamlingo wochepa wa kuyenda.
Chifukwa Chake Sankhani Ife
Ningbo Pntek Technology Co., Ltd. yomwe ili mumzinda wa Ningbo, m'chigawo cha Zhejiang. Ndi imodzi mwa makampani opanga ndi kutumiza kunja omwe akutsogolera ntchito za ulimi, zomangamanga, ndi WaterTreatment ku China. Timapereka zinthu zosiyanasiyana za pulasitiki kwa makasitomala padziko lonse lapansi. NingboPntek yakhala ndi mwayi wopitilira ndipo yakhala ndi luso lochuluka pakupanga, kupanga, ntchito zamakasitomala, ndi kuwongolera khalidwe kwa zaka zambiri. Mzere wa Zogulitsa. Zogulitsa zathu zikuphatikizapoUPVC,CPVC,PPR,HDPEmapaipi ndi zolumikizira, makina opopera madzi ndi mita yamadzi zomwe zonse zimapangidwa bwino ndi makina apamwamba komanso zipangizo zabwino komanso zimagwiritsidwa ntchito kwambiri mu ulimi wothirira ndi kumanga. Tili ndi makina apamwamba olondola, zida zenizeni zokonzera nkhungu komanso zida zoyezera bwino. Timaona amuna ngati maziko ndipo timasonkhanitsa gulu la antchito ofunikira omwe ali ophunzitsidwa bwino komanso otanganidwa ndi kayendetsedwe kamakono ka bizinesi, kupanga zinthu, kuwongolera khalidwe ndi ukadaulo wopanga. Gawo lililonse la njira zathu zopangira zinthu likugwirizana ndi muyezo wa lSO9001:2000. Ningbo Pntek imaika patsogolo khalidwe ndipo makasitomala athu apindula ndi ntchito zake zonse kunyumba ndi kunja. Ningbo Pntek ikuyembekeza kuti ipita limodzi ndikukulimbikitsani ulemerero pamodzi!
