Mukuwona mawu akuti “valvu yogwirizana” ndi “valavu ya mpira” alembedwa, koma kodi ndi osiyana? Kusankha molakwika kumatanthauza kuti mungafunike kudula valavu yabwino kwambiri pambuyo pake kuti mukonze pompu.

Valavu ya mpira imafotokoza njira yozimitsira (mpira). Union imafotokoza mtundu wa kulumikizana komwe kumalola kuchotsa (union nati). Sizosiyana; valavu yosinthasintha kwambiri ndivalavu yolimba ya mpira wa mgwirizano weniweni, zomwe zimaphatikiza zinthu zonse ziwiri.

Ichi ndi chimodzi mwa zinthu zomwe zimasokoneza kwambiri zomwe ndimaona, ndipo ndi kusiyana kwakukulu kwa katswiri aliyense. Nthawi zambiri ndimakambirana izi ndi mnzanga Budi ku Indonesia, chifukwa makasitomala ake amafunikira mayankho omwe si othandiza okha komanso othandiza kuti apitirizebe kugwira ntchito. Zoona zake n'zakuti, mawu awa amafotokoza zinthu ziwiri zosiyana: chimodzi chimakuuzani.Bwanjivalavu imagwira ntchito, ndipo inayo imakuuzanimomwe zimalumikiziranaku chitoliro. Kumvetsetsa kusiyana kumeneku ndikofunikira kwambiri popanga dongosolo lanzeru komanso lothandiza.

Kodi kusiyana pakati pa valavu ya mpira ndi valavu ya mpira wa union ndi kotani?

Mwayika valavu yokhazikika ya mpira, ndikuimamatira kosatha mu chingwe. Patatha chaka chimodzi, chisindikizo chalephera, ndipo mwazindikira kuti njira yokhayo ndiyo kudula valavu yonse ndikuyambanso.

Vavu yokhazikika ya mpira ndi chinthu chimodzi, chokhazikika nthawi zonse. Vavu yeniyeni ya mpira wogwirizana imakhala ndi mtedza wopangidwa ndi ulusi womwe umakulolani kuchotsa thupi la valavu yapakati popanda kudula chitoliro, zomwe zimapangitsa kukonza kapena kusintha kukhala kosavuta.

Ichi ndiye kusiyana kofunikira kwambiri pakukonzekera kwa nthawi yayitali. Taganizirani izi ponena za "chokhazikika" poyerekeza ndi "chogwiritsidwa ntchito." Valavu wamba, yaying'ono ya mpira imalumikizidwa mwachindunji mu payipi. Ikangolowa, imakhala yabwino kwamuyaya. Izi ndi zabwino pamizere yosavuta, yopanda tanthauzo. Avalavu yolimba ya mpira wa mgwirizano weniweniKomabe, cholinga chake ndi cha mtsogolo. Mumalumikiza zitsulo ziwiri zosiyana za kumbuyo kwa chitolirocho, ndipo thupi lalikulu la valavu limakhala pakati pawo. Limagwiridwa ndi mtedza waukulu wa union. Ngati mukufuna kusintha zomangira za valavu kapena thupi lonse, mumangomasula mtedzawo ndikuwutulutsa. Ichi ndichifukwa chake ife ku Pntek timathandizira kapangidwe ka union; imasintha kukonza kwakukulu kukhala ntchito yosavuta ya mphindi 5.

Valavu ya Mpira ya Standard vs. True Union

Kodi valavu ya mgwirizano ndi chiyani?

Mumawona mawu akuti “valvu yogwirizana” ndipo mumaganiza kuti ndi gulu losiyana kwambiri, monga valavu ya chipata kapena valavu yoyang'anira. Kukayikira kumeneku kungakulepheretseni kusankha njira yabwino kwambiri.

Vavu yolumikizirana si mtundu wa makina, koma mtundu wa kulumikizana. Ndi valavu iliyonse yomwe imagwiritsa ntchito zolumikizirana (mtedza wolumikizidwa) kulumikiza thupi la valavu kumapeto kwa chitoliro, zomwe zimapangitsa kuti zikhale zosavuta kuchotsa.

"Mgwirizano" wokha ndi ntchito yabwino kwambiri. Uli ndi magawo atatu akuluakulu: zidutswa ziwiri zakumbuyo zomwe zimalumikizana ndi chitoliro (kaya ndi chosungunula kapena ulusi), ndi mtedza wolumikizidwa womwe umazikoka pamodzi kuti apange chisindikizo.valavu yogwirizana"Zimangopanga izi mu kapangidwe ka valavu. Chifukwa chake, mutha kukhala ndi valavu yeniyeni ya union ball, valavu yeniyeni yowunikira union, kapena valavu yeniyeni ya union diaphragm. Cholinga chake nthawi zonse chimakhala chimodzimodzi:kuthekera kogwira ntchito. Imakulolani kuti mupatule ndikuchotsa chipangizo popanda kupondereza makina onse kapena, chofunika kwambiri, popanda kudula chitoliro chanu. Njira iyi yogwiritsira ntchito modula ndiyo maziko a kapangidwe ka mapaipi amakono komanso kogwira mtima komanso gawo lalikulu la filosofi ya "kupambana kwa onse" yomwe ndimagawana ndi anzawo monga Budi. Imapulumutsa makasitomala ake nthawi ndi ndalama pa moyo wonse wa makinawo.

Kodi mitundu itatu ya ma valve ndi iti?

Mwakhala mukugwiritsa ntchito ma valve a mpira pazinthu zonse, koma kugwiritsa ntchito kamodzi kumafuna kuwongolera bwino kayendedwe ka madzi. Mukuyesera kutseka pang'ono valavu ya mpira, koma ndi kovuta kuilamulira ndipo mumamva phokoso lachilendo.

Mitundu itatu yayikulu ya ma valve ndi Shut-Off (On/Off), Throttling (Regulating), ndi Non-Return (Backflow Prevention). Mtundu uliwonse wapangidwa kuti ugwire ntchito yosiyana kwambiri, ndipo kugwiritsa ntchito kolakwika kungawononge dongosolo lanu.

Kudziwa magulu oyambira ndikofunikira kwambiri posankha chida choyenera pantchitoyo. Kugwiritsa ntchito valavu yolakwika ndi cholakwika chofala kwambiri. Vavu ya mpira ndivalavu yotseka; yapangidwa kuti ikhale yotseguka kapena yotsekedwa kwathunthu. Kugwiritsa ntchito poyendetsa bwino kungayambitse kugwedezeka komwe kumawononga mpira ndi mipando, zomwe zimapangitsa kuti ilephereke.

Magulu a Valavu Ofotokozedwa

Kodi mitundu 4 ya ma valve a mpira ndi iti?

Mukudziwa za ma valve enieni a union, koma mumawona njira zina monga "compact" kapena "one-piece." Simukudziwa chomwe chili chabwino pa mapulogalamu osiyanasiyana, ndipo mwina mukulipira mopitirira muyeso pazinthu zomwe simukuzifuna.

Mitundu inayi ikuluikulu ya ma valve a mpira imasiyanitsidwa ndi kapangidwe ka thupi: Chidutswa Chimodzi (chotsekedwa), Chidutswa Chachiwiri (thupi lokhala ndi ulusi), Chidutswa Chachitatu (monga mgwirizano weniweni), ndi Ching'ono (kapangidwe kosavuta, kotsika mtengo, nthawi zambiri chidutswa chimodzi).

Ngakhale kuti kagwiridwe ka mkati kake ndi komweko (mpira wozungulira), momwe thupi limapangidwira zimadalira mtengo wake komanso kuthekera kwake kugwira ntchito. Mu dziko la PVC, timayang'ana kwambiri mapangidwe a union wa chidutswa chimodzi/chochepa ndi zitatu/chowonadi.

• Gawo limodzi /Valavu ya Mpira Waing'ono:Thupi la valavu ndi chinthu chimodzi chotsekedwa. Ili ndiye kapangidwe kotsika mtengo kwambiri. Ndi lopepuka, losavuta, komanso labwino kwambiri pogwiritsira ntchito komwe kukonza si nkhani ndipo mtengo wake ndiye woyendetsa wamkulu.
• Valavu ya Mpira Wazidutswa Ziwiri:Thupi lake limapangidwa ndi zidutswa ziwiri zomwe zimalumikizana, zomwe zimamangirira mpirawo ndikutseka mkati. Izi zimathandiza kukonza pang'ono koma nthawi zambiri zimafuna kuuchotsa pamzere. Umapezeka kwambiri m'ma valve achitsulo.
• Zidutswa Zitatu (Valavu ya Mpira ya True Union):Iyi ndi njira yabwino kwambiri yopangira zinthu. Ili ndi zolumikizira ziwiri (zolumikizira kumbuyo) ndi thupi lapakati. Izi zimathandiza kuti thupi lalikulu lichotsedwe kuti likonzedwe kapena kusinthidwa popanda kusokoneza chitoliro. Iyi ndi njira yodalirika komanso yotsika mtengo kwambiri yogwiritsira ntchito zofunika kwambiri kwa nthawi yayitali.

Ku Pntek, timayang'ana kwambiri pakupereka zinthu zabwino kwambiri komanso zotsika mtengo.ma valve enieni a mgwirizano, kupatsa anzathu monga Budi njira zoyenera zomwe makasitomala athu akufuna.

Mapeto

Vavu ya mpira ndi njira yolumikizirana; mgwirizano ndi kulumikizana. Vavu yeniyeni ya mpira wa union imaphatikiza izi, zomwe zimapangitsa kuti pakhale kulamulira kwabwino komanso kukonza kosavuta kwa makina aliwonse ogwiritsira ntchito mapaipi.