Ma valve oyezera, omwe amadziwikanso kuti ma valve osabwezera (NRVs), ndi gawo lofunikira kwambiri pamakina aliwonse a mapaipi a mafakitale kapena okhala m'nyumba. Amagwiritsidwa ntchito poletsa kubwerera kwa madzi, kuonetsetsa kuti makinawo akugwira ntchito bwino komanso kupewa kuwonongeka.

Ma valve oyesera amagwira ntchito mosavuta. Kupanikizika komwe kumachitika chifukwa cha madzi omwe akuyenda kudzera mu mapaipi kumatsegula valavu, ndipo kuyenda kulikonse kobwerera kumatseka valavu. Kumalola madzi kuyenda popanda choletsa chilichonse mbali imodzi ndikuzimitsa yokha kuthamanga kukachepa. Ngakhale izi ndizosavuta, pali mitundu yosiyanasiyana ya ma valve oyesera omwe ali ndi ntchito zosiyanasiyana komanso ntchito zosiyanasiyana. Kodi mumadziwa bwanji mtundu wa valavu yoyesera yomwe mungagwiritse ntchito pantchito yanu kapena pulojekiti yanu? Kuti tikuthandizeni kusankha bwino, nazi zina mwazomwe zili pamitundu yodziwika bwino ya ma valve oyesera.

Valavu yowunikira Swing
Valavu Yoyera ya PVC Swing CheckSwing Check imagwiritsa ntchito diski mkati mwa valavu kuti ilole kapena kuletsa kuyenda kwa madzi mu dongosolo la mapaipi. Madzi akayenda molunjika, kupanikizika kumakakamiza diski kuti itsegule ndikuyisunga yotseguka. Pamene kupanikizika kukuchepa, valavu imatseka, zomwe zimaletsa kuyenda kwa madzi m'mbuyo. Mavalavu oyesera madzi amapezeka m'mitundu yosiyanasiyana, kuphatikizapo PVC, CPVC, clear, ndi industrial.

Pali mitundu iwiri ya ma valve oyesera swing omwe tiyenera kuyang'ana kwambiri:

• Chopindika Chapamwamba - Mu valavu yowunikira swing iyi, diski imalumikizidwa pamwamba pa valavu ndi hinge yomwe imalola diski kutseguka ndi kutseka.

• Swashplate - Valavu yoyesera swing iyi yapangidwa mwanjira yomwe imalola valavu kutseguka kwathunthu ndikutseka mwachangu pakakhala kutsika kwa madzi. Imachita izi pogwiritsa ntchito diski yooneka ngati dome yokhala ndi kasupe kuti valavuyo itseke mwachangu kuposa valavu yokhala ndi hinged pamwamba. Kuphatikiza apo, diski yomwe ili mu valavu yoyesera iyi imayandama, kotero madzi amatuluka pamwamba ndi pansi pa diski.
Mitundu iyi ya ma valve oyesera imagwiritsidwa ntchito kwambiri popewa kusefukira kwa madzi m'zimbudzi ndi ntchito zoteteza moto. Amagwiritsidwa ntchito m'zimbudzi zomwe zimasuntha madzi, mpweya ndi mitundu ina ya zinthu zolumikizirana.

Nyamulanivalavu yoyezera
Ma valve oyezera kukweza ali ofanana kwambiri ndi ma valve ozungulira. Amagwiritsa ntchito ma pistoni kapena mipira m'malo mwa ma disc omwe ma valve oyezera ozungulira amagwiritsa ntchito. Ma valve oyezera kukweza ali othandiza kwambiri poletsa kutuluka kwa madzi kuposa ma valve oyezera kugwedezeka. Tiyeni tiwone ma valve awiri oyezera kukweza awa:

• Pisitoni – Mtundu uwu wa valavu yowunikira umadziwikanso kuti valavu yowunikira pulagi. Umawongolera kuyenda kwa madzi m'mapaipi kudzera mu kayendedwe ka pisitoni mkati mwa chipinda cha valavu. Nthawi zina pisitoni imakhala ndi kasupe wolumikizidwa, zomwe zimathandiza kuti ikhale yotsekedwa ikagwiritsidwa ntchito.

Valavu Yowunikira Mpira ya PVC Yoyera • Valavu Yowunikira Mpira – Valavu yowunikira mpira imagwira ntchito pogwiritsa ntchito mphamvu yokoka. Ngati pali kupanikizika kokwanira mumadzimadzi, mpirawo umakwezedwa mmwamba, ndipo kupanikizika kukachepa, mpirawo umatsika ndikutseka potseguka. Mavavu owunikira mpira amapezeka m'mitundu yosiyanasiyana ya zinthu ndi mitundu: PVC: yoyera komanso yaimvi, CPVC: yolumikizana yeniyeni komanso yaying'ono.

Nyamulanima valve owunikiraAmagwiritsidwa ntchito m'mafakitale ambiri. Mudzawapeza m'malo okhala ndi mafakitale. Amagwiritsidwa ntchito m'makampani ogulitsa chakudya ndi zakumwa, mafuta ndi gasi, komanso mafakitale a m'madzi, kungotchulapo ochepa.

Valavu yoyezera gulugufe
Valavu yowunikira gulugufe ndi yapadera chifukwa diski yake imapindika pakati kuti madzi aziyenda. Pamene madzi akuyenda mozungulira, magawo awiriwo amatsegulidwanso kuti atseke valavu yotsekedwa. Valavu yowunikira iyi, yomwe imadziwikanso kuti valavu yowunikira mbale ziwiri kapena valavu yowunikira ma disc opindika, ndi yoyenera machitidwe amadzimadzi otsika komanso makina opayikira mpweya.

Valavu yowunikira padziko lonse lapansi
Ma valve otchingira otseka amakulolani kuyamba ndikuyimitsa kuyenda kwa madzi mu dongosolo la mapaipi. Amasiyana chifukwa amakulolaninso kuwongolera kuchuluka kwa magalimoto. Valavu yotchingira yozungulira ndi valavu yotchingira yokhala ndi chowongolera chowongolera chomwe chimayimitsa kuyenda kwa madzi mosasamala kanthu za komwe madzi akuchokera kapena komwe akutuluka. Pamene kuthamanga kwa mpweya kuli kotsika kwambiri, valavu yotchingira imatseka yokha kuti isabwerere m'mbuyo. Mtundu uwu wa valavu yotchingira ukhoza kugwira ntchito pogwiritsa ntchito chowongolera chakunja m'malo mwa chowongolera chowongolera, zomwe zikutanthauza kuti mutha kuyika valavu pamalo otsekedwa mosasamala kanthu za kuyenda kwa madzi.

Ma valve oyezera magetsi padziko lonse lapansi amagwiritsidwa ntchito kwambiri m'makina a boiler, malo opangira magetsi, kupanga mafuta komanso ntchito zotetezera kuthamanga kwa mpweya.

Maganizo Omaliza pa Ma Check Valve
Ponena za kupewa kubwerera kwa madzi m'thupi, palibe njira ina koma kungoyang'ana valavu yoyezera. Tsopano popeza mukudziwa pang'ono za mitundu yosiyanasiyana ya mavalavu oyezera, muyenera kusankha yomwe ili yoyenera kugwiritsa ntchito.