Vavu ya mpira yokhala ndi thupi lolumikizidwa bwino imatha kuikidwa pansi mwachindunji, kuti ziwalo zamkati za valavu zisawonongeke, ndipo nthawi yayitali yogwirira ntchito ikhoza kukhala zaka 30. Ndi valavu yoyenera kwambiri ya mapaipi amafuta ndi gasi wachilengedwe.
Malinga ndi kapangidwe ka valavu ya mpira, ikhoza kugawidwa m'magulu:

 

1. Valavu ya mpira yoyandama

 

Chipilalacho chikuyandama. Pogwiritsa ntchito mphamvu yapakati, chipilalacho chimatha kupanga malo enaake osunthira ndikukanikiza mwamphamvu pamwamba pa chotseka cha mbali yotulukira kuti chitsimikizire kuti mbali yotulukirayo yatsekedwa.

 

Valavu yoyandama ya mpira ili ndi kapangidwe kosavuta komanso magwiridwe antchito abwino otsekera, koma katundu wa bolodi lokhala ndi chogwirira ntchito chonsecho chimatumizidwa ku mphete yotsekera yotulukira, kotero ndikofunikira kuganizira ngati zinthu zotsekera mphete zimatha kupirira katundu wogwirira ntchito wa chogwirira ntchito. Kapangidwe kameneka kamagwiritsidwa ntchito kwambiri mu mavavu a mpira opanikizika apakati ndi otsika.

 

2. Valavu yokhazikika ya mpira

 

Chozunguliracho chimakhala chokhazikika ndipo sichisuntha chikakanikizidwa. Valavu yokhazikika ya mpira imakhala ndi mpando wa valavu woyandama. Pambuyo pa kupanikizika kwa medium, mpando wa valavu umasuntha, kotero kuti mphete yotsekera imakanikizidwa mwamphamvu pa mpirawo kuti zitsimikizire kutsekedwa. Mabearing nthawi zambiri amayikidwa pa shafts zapamwamba ndi zapansi za chozunguliracho, ndipo mphamvu yogwirira ntchito ndi yaying'ono, yomwe ndi yoyenera mavavu amphamvu komanso akuluakulu.

 

Pofuna kuchepetsa mphamvu yogwirira ntchito ya valavu ya mpira ndikuwonjezera kudalirika kwa chisindikizo, mavalavu a mpira otsekedwa ndi mafuta awonekera m'zaka zaposachedwa. Mafuta apadera opaka mafuta amalowetsedwa pakati pa malo otsekera kuti apange filimu yamafuta, zomwe zimapangitsa kuti ntchito yotsekera ikhale yabwino komanso imachepetsa mphamvu yogwirira ntchito. Ndi yoyenera kwambiri mavalavu a mpira okhala ndi mphamvu zambiri komanso akuluakulu.

 

3. Valavu ya mpira wotanuka

 

Chipilalacho ndi chotanuka. Mpira ndi mphete yotsekera mpando wa valavu zonse zimapangidwa ndi zitsulo, ndipo kupanikizika kwapadera kwa chotsekeracho ndi kwakukulu kwambiri. Kupanikizika kwa cholumikiziracho sikungakwaniritse zofunikira zotsekera, ndipo mphamvu yakunja iyenera kugwiritsidwa ntchito. Valavu iyi ndi yoyenera kutentha kwambiri komanso malo otsekera okwera.

 

Chipilala chotanuka chimapangidwa potsegula mpata wotanuka kumapeto kwa khoma lamkati la chipilalacho kuti chikhale chotanuka. Mukatseka njira, gwiritsani ntchito mutu wooneka ngati wedge wa tsinde la valavu kuti mukulitse mpirawo ndikukanikiza mpando wa valavu kuti utseke. Masulani mutu wooneka ngati wedge musanazungulize mpirawo, ndipo mpirawo udzabwerera ku mawonekedwe ake oyambirira, kotero kuti pakhale mpata wochepa pakati pa mpirawo ndi mpando wa valavu, zomwe zingachepetse kukangana kwa pamwamba pa chitseko ndi mphamvu yogwirira ntchito.

 

Ma valve a mpira amatha kugawidwa m'magulu awiri: mtundu wolunjika, mtundu wa njira zitatu ndi mtundu wa ngodya yakumanja malinga ndi malo awo. Ma valve awiri omaliza a mpira amagwiritsidwa ntchito kugawa cholumikizira ndikusintha njira yoyendetsera cholumikizira.

 

Makhalidwe ake ambiri amachititsa kuti valavu ya mpira igwiritsidwe ntchito kwambiri mu mafuta, makampani opanga mankhwala, kupanga magetsi, kupanga mapepala, mphamvu ya atomiki, ndege, maroketi ndi madipatimenti ena, komanso moyo watsiku ndi tsiku wa anthu.

Nortech ndi m'modzi mwa opanga ma valve otsogola ku China omwe ali ndi satifiketi ya ISO9001 yapamwamba.

Zinthu zazikulu:Valavu ya Gulugufe,Valavu ya Mpira,Valavu ya Chipata,Valavu Yowunikira,Globe Vavlve,Zipangizo za Y,Chotsukira Magetsi,Zipangizo zoyezera mpweya (Pneumatic Acurators).