Mukuganiza kuti valavu yanu imalola kuyenda kwakukulu, koma dongosolo lanu silikuyenda bwino. Vavu yomwe mwasankha ingakhale ikutsamwitsa chingwe, kuchepetsa mwakachetechete kupanikizika ndi kuchita bwino popanda kudziwa chifukwa chake.

Sikuti ma valve onse a PVC ali ndi doko lathunthu. Ambiri ndi doko lokhazikika (lomwe limatchedwanso doko lochepera) kuti mupulumutse pamtengo ndi malo. Valavu yodzaza ndi doko ili ndi dzenje lofanana ndi chitoliro choyenda mopanda malire.

Izi ndizovuta kwambiri pamapangidwe adongosolo, ndipo ndichinthu chomwe ndimakambirana pafupipafupi ndi anzanga, kuphatikiza gulu la Budi ku Indonesia. Kusankha pakati pa doko lathunthu ndi doko lokhazikika kumakhudza magwiridwe antchito adongosolo. Kwa makasitomala a Budi omwe ali makontrakitala, kupeza ufulu umenewu kumatanthauza kusiyana pakati pa machitidwe apamwamba ndi omwe sakukwaniritsa zomwe akuyembekezera. Pomvetsetsa kusiyana kumeneku, amatha kusankha valavu yabwino ya Pntek pa ntchito iliyonse, kuonetsetsa kuti makasitomala akukhutira ndikudzipangira mbiri ya ntchito yabwino.

Kodi valavu ya mpira ndi valavu yonse?

Mufunika kuyenda kwakukulu kwa makina anu atsopano a pompu. Koma mutatha kukhazikitsa, ntchitoyi ndi yokhumudwitsa, ndipo mumakayikira kuti pali botolo penapake pamzere, mwina kuchokera pa valve yotseka yomwe mudagwiritsa ntchito.

Valavu ya mpira ikhoza kukhala doko lathunthu kapena doko lokhazikika. Bowo la valavu yodzaza (bowo) limafanana ndi m'mimba mwake mwa chitoliro kuti musayendetse ziro. Doko lokhazikika ndi chitoliro chimodzi chocheperako.

Teremuyo "doko lathunthu"(kapena kuphulika kwathunthu) ndi mawonekedwe apadera, osati khalidwe lachilengedwe la ma valve onse a mpira. Kupanga kusiyana kumeneku ndikofunika kwambiri pakusankha valavu yoyenera. Valavu yodzaza ndi ma valve imapangidwa kuti ikhale yothamanga kwambiri. Bowo la mpira ndilokulirapo kuti likhale lofanana ndi mkati mwa chitoliro chomwe chimalumikizidwa. A.standard port valve, mosiyana, ali ndi dzenje lomwe ndi limodzi mwadzina kukula kakang'ono kuposa chitoliro. Izi zimapanga malire pang'ono.

Ndiye muyenera kugwiritsa ntchito liti? Nawa kalozera wosavuta yemwe ndimapereka kwa anzathu.

Pazinthu zambiri za tsiku ndi tsiku, monga mzere wa nthambi kupita ku sinki kapena chimbudzi, valve yokhazikika ya doko imakhala yabwino kwambiri komanso yotsika mtengo. Koma pamzere waukulu wamadzi kapena kutulutsa kwa pampu, valve yodzaza ndi doko ndiyofunikira kuti ipitirire kupanikizika ndikuyenda.

Kodi valavu ya mpira wa PVC ndi chiyani?

Muyenera njira yosavuta komanso yodalirika yoyimitsa madzi. Mavavu achipata akale amadziwika kuti amanyamula kapena kutsika mukawatseka, ndipo mumafunika valavu yomwe imagwira ntchito nthawi zonse.

Valavu ya mpira wa PVC ndi valve yotsekera yomwe imagwiritsa ntchito mpira wozungulira wokhala ndi dzenje. Kutembenuka kofulumira kwa kotala kwa chogwirira kumagwirizanitsa dzenje ndi chitoliro kuti litsegule kapena kulitembenuza kuti ligwirizane ndi kutuluka kuti litseke.

TheValve ya mpira wa PVCndi yotchuka chifukwa cha kuphweka kwake komanso kudalirika kodabwitsa. Tiyeni tione mbali zake zazikulu. Zimayamba ndi thupi lolimba la PVC lomwe limagwirizanitsa zonse. Mkati mwake mumakhala pakatikati pa valavu: mpira wa PVC wozungulira wokhala ndi dzenje lobowola molondola, kapena "bore," kudutsa pakati. Mpira uwu umakhala pakati pa mphete ziwiri zotchedwa mipando, zomwe zimapangidwa kuchokeraPTFE (chinthu chodziwika ndi dzina lake, Teflon). Mipando iyi imapanga chisindikizo chopanda madzi motsutsana ndi mpira. Tsinde limalumikiza chogwirira chakunja ndi mpira wamkati. Mukatembenuza chogwiriracho madigiri 90, tsinde limazungulira mpirawo. Malo a chogwiriracho nthawi zonse amakuuzani ngati valavu ili yotseguka kapena yotsekedwa. Ngati chogwiriracho chikufanana ndi chitoliro, ndichotseguka. Ngati ndi perpendicular, yatsekedwa. Mapangidwe osavuta, ogwira mtimawa ali ndi magawo ochepa osuntha, ndichifukwa chake amadaliridwa pamapulogalamu osawerengeka padziko lonse lapansi.

Kodi pali kusiyana kotani pakati pa L port ndi T port mpira mavavu?

Ntchito yanu ikufuna kuti mupatutse madzi, osati kungoyimitsa. Mukukonzekera maukonde ovuta a mapaipi ndi ma valve, koma mukuwona kuti payenera kukhala njira yosavuta, yothandiza kwambiri.

Doko la L ndi doko la T limatanthawuza mawonekedwe a bore mu valavu ya mpira wa 3. Doko la L limapatutsa kuyenda pakati pa njira ziwiri, pomwe doko la T limatha kupatutsa, kusakaniza, kapena kutumiza kuyenderera molunjika.

Tikamalankhula za madoko a L ndi T, tikuyenda mopitilira ma valve osavuta / kuzimitsa ndikulowamavavu ambiri. Izi zapangidwa kuti ziziyang'anira kayendedwe ka kayendedwe kake. Ndiwothandiza kwambiri ndipo amatha kusintha mavavu angapo, kupulumutsa malo ndi ndalama.

Mavavu a L-Port

Valve ya L-port ili ndi chobowola chooneka ngati "L." Ili ndi cholowera chapakati ndi zotulutsa ziwiri (kapena zolowera ziwiri ndi chotulukira chimodzi). Ndi chogwiriracho pamalo amodzi, kutuluka kumachokera pakati kupita kumanzere. Ndi kutembenuka kwa madigiri 90, kuyenda kumachoka pakati kupita kumanja. Malo achitatu amaletsa kuyenda konse. Sichingathe kulumikiza madoko onse atatu nthawi imodzi. Ntchito yake ndi kusokoneza basi.

T-Port Valves

A Valve ya T-portimasinthasintha. Mphuno yake imapangidwa ngati "T". Itha kuchita chilichonse chomwe L-port ingathe. Komabe, ili ndi malo owonjezera omwe amalola kuyenda molunjika kudutsa madoko awiri otsutsana, monga valve yokhazikika ya mpira. M'malo ena, imatha kulumikiza madoko onse atatu nthawi imodzi, zomwe zimapangitsa kuti ikhale yabwino kusakaniza zamadzimadzi ziwiri munjira imodzi.

Kodi mavavu a pulagi ali ndi doko lathunthu?

Mukuwona mtundu wina wa valavu ya quarter-turn yotchedwa plug valve. Zikuwoneka ngati valavu ya mpira, koma simukudziwa momwe zimayendera poyenda kapena kudalirika kwa nthawi yaitali.

Monga mavavu a mpira, mavavu a pulagi amatha kukhala doko lathunthu kapena doko lochepetsedwa. Komabe, mapangidwe awo amapangitsa kukangana kwambiri, kumapangitsa kuti zikhale zovuta kutembenuka komanso zimamatirira pakapita nthawi kuposa valavu ya mpira.

Uku ndi kufananitsa kosangalatsa chifukwa kumawonetsa chifukwa chakema valve a mpirazakhala zotsogola kwambiri m'makampani. Avalavu ya pulagiamagwiritsa ntchito pulagi ya cylindrical kapena tapered yokhala ndi bowo. Valavu ya mpira imagwiritsa ntchito bwalo. Zonsezi zikhoza kupangidwa ndi kutsegula kwa doko lonse, kotero pankhaniyi, ndizofanana. Kusiyana kwakukulu ndi momwe amagwirira ntchito. Pulagi mu valavu ya pulagi ili ndi malo aakulu kwambiri omwe amalumikizana nthawi zonse ndi thupi la valve kapena liner. Izi zimapanga kukangana kwakukulu, zomwe zikutanthauza kuti pamafunika mphamvu zambiri (torque) kuti mutembenuke. Kukangana kwakukulu kumeneku kumapangitsanso kukhala kosavuta kugwidwa ngati sikukugwiritsidwa ntchito nthawi zonse. Vavu ya mpira, kumbali ina, imasindikiza ndi mipando yaying'ono, yolunjika ya PTFE. Malo olumikizirana ndi ocheperako, zomwe zimapangitsa kugundana kochepa komanso kugwira ntchito bwino. Ku Pntek, timayang'ana kwambiri mapangidwe a valve ya mpira chifukwa amapereka chisindikizo chapamwamba ndi khama lochepa komanso kudalirika kwakukulu kwa nthawi yaitali.

Mapeto

Sikuti ma valve onse a PVC ali ndi doko lathunthu. Nthawi zonse sankhani madoko athunthu pamakina othamanga kwambiri ndi doko lokhazikika kuti mutseke kuti muwongolere magwiridwe antchito ndi mtengo wazomwe mukufuna.