Mukufuna kuyesa mizere yanu yatsopano ya PVC. Mumatseka valavu, koma lingaliro lovutitsa likuwoneka: kodi valavu imatha kuthana ndi kupanikizika kwakukulu, kapena idzasweka ndikusefukira pamalo ogwirira ntchito?

Ayi, kuyezetsa kokhazikika sikungawononge valavu yabwino ya PVC. Ma valve awa amapangidwa kuti azigwira mwamphamvu pa mpira wotsekedwa. Komabe, muyenera kupewa kuthamanga kwadzidzidzi ngati nyundo yamadzi ndikutsata njira zoyenera.

Ichi ndi nkhawa wamba, ndipo ndi chinachake ine kawirikawiri kumveketsa kwa anzanga, kuphatikizapo gulu Budi ku Indonesia. makasitomala awo ayenera chidaliro chonse kuti wathumavavuadzachita pansi pa nkhawa amayeso a dongosolo. Vavu ikagwira bwino kukakamiza, imatsimikizira mtundu wa valavu ndi kukhazikitsa. Chiyeso choyenera ndicho chisindikizo chomaliza cha chivomerezo pa ntchito yomwe wachita bwino. Kumvetsetsa momwe mungachitire mosamala ndikofunikira kuti mupewe ngozi ndikuwonetsetsa kudalirika kwa nthawi yayitali kwa mapaipi onse.

Kodi mungakakamize kuyesa valavu ya mpira?

Muyenera kudzipatula gawo la chitoliro kuti muyesedwe. Kutseka valavu ya mpira kumawoneka ngati koyenera, koma mukuda nkhawa kuti mphamvuyo ikhoza kusokoneza zisindikizo kapena kusokoneza thupi la valve palokha.

Inde, mungathe ndipo muyenera kuyesa kuyesa pa valve yotsekedwa. Kapangidwe kake kamapangitsa kukhala koyenera kudzipatula. Kupanikizika kumathandizadi pokankhira mpira mwamphamvu kwambiri pampando wakumunsi, ndikuwongolera chisindikizo.

Ichi ndi chimodzi mwa ubwino waukulu avalavu ya mpirakupanga. Tiyeni tione zimene zimachitika mkati. Mukatseka valavu ndikuyika kuthamanga kuchokera kumtunda, mphamvuyo imakankhira mpira wonse woyandama pampando wakumunsi wa PTFE (Teflon). Mphamvu imeneyi imapanikiza mpando, ndikupanga chisindikizo cholimba kwambiri. Valve ikugwiritsa ntchito mphamvu yoyesera kuti idzisindikize bwino kwambiri. Ichi ndichifukwa chake valavu ya mpira ndi yabwino kuposa mapangidwe ena, mongama valve pachipata, pachifukwa ichi. Valve yachipata ikhoza kuonongeka ngati itatsekedwa ndi kupanikizika kwambiri. Kuti muyese bwino, muyenera kutsatira malamulo awiri osavuta: Choyamba, onetsetsani kuti chogwiriracho chatembenuzidwa ndi madigiri a 90 kuti akhale otsekedwa kwathunthu. Vavu yotseguka pang'ono idzalephera mayeso. Chachiwiri, yambitsani kuthamanga kwa mayeso (kaya ndi mpweya kapena madzi) mu dongosolo pang'onopang'ono kuti mupewe kugwedezeka kwadzidzidzi.

Kodi mungayesetse kuyesa chitoliro cha PVC?

Dongosolo lanu latsopano la PVC limamatidwa ndikuphatikizidwa. Zimawoneka bwino, koma kudontha kwakung'ono, kobisika pamfundo imodzi kumatha kuwononga kwambiri pambuyo pake. Muyenera njira yotsimikizira 100%.

Mwamtheradi. Kuyesa kukakamiza kwa chitoliro chatsopano cha PVC ndi njira yosakambitsirana ndi plumber aliyense waluso. Mayesowa amatsimikizira kukhulupirika kwa cholumikizira chosungunulira chosungunulira ndi ulusi uliwonse asanaphimbidwe.

Iyi ndi njira yofunika kwambiri yowongolera khalidwe. Kupeza kutayikira makoma asanayambe kutsekedwa kapena ngalande ndi backfilled n'zosavuta kukonza. Kuchipeza pambuyo pake ndi tsoka. Pali njira ziwiri zazikulu zoyeseramapaipi a PVC: hydrostatic (madzi)ndi pneumatic (mpweya).

Njira Yoyesera	Ubwino wake	Zoipa
Madzi (Hydrostatic)	Otetezeka, popeza madzi samapanikiza ndikusunga mphamvu zochepa. Kuchucha nthawi zambiri kumakhala kosavuta kuwona.	Zitha kukhala zosokoneza. Pamafunika gwero la madzi ndi njira yothira dongosolo pambuyo pake.
Mpweya (Peneumatic)	Woyeretsa. Nthawi zina amatha kupeza kudontha kwakung'ono kwambiri komwe madzi sangawulule nthawi yomweyo.	Zowopsa kwambiri. Mpweya woponderezedwa umasunga mphamvu zambiri; kulephera kungakhale koopsa.

Mosasamala kanthu za njirayo, lamulo lofunika kwambiri ndikudikirira kuti simenti yosungunulira ichiritse bwino. Izi zimatenga maola 24, koma nthawi zonse muyenera kuyang'ana malangizo a wopanga simenti. Kukanikizira dongosolo msanga kwambiri kuphulitsa mafupa. Kuthamanga kwa mayeso kuyenera kukhala pafupifupi nthawi 1.5 kukakamiza kwa dongosolo, koma osapitilira kukakamiza kwa gawo lotsika kwambiri mudongosolo.

Kodi valavu yoyang'anira PVC ikhoza kukhala yoyipa?

Pampu yanu ya sump imayenda, koma madzi samatsika. Kapena mwina pampu imazungulira ndikuzimitsa nthawi zonse. Mukuganiza kuti pali vuto, ndipo valavu yosawoneka bwino ndiyomwe imayambitsa.

Inde, valavu yoyang'ana PVC ikhoza kulephera. Popeza ndi makina opangidwa ndi ziwalo zosuntha, amatha kumamatira chifukwa cha zinyalala, zisindikizo zake zimatha kutha, kapena kasupe wake amatha kusweka, zomwe zimabweretsa kubwerera m'mbuyo.

Onani ma valvendi ngwazi zosaimbidwa za machitidwe ambiri a mapaipi, koma iwo sasafa. Ntchito yawo ndikulola kuyenda munjira imodzi yokha. Akalephera, pafupifupi nthawi zonse zimayambitsa vuto. Ambiri chifukwa chakulepherandi zinyalala. Mwala wawung'ono, tsamba, kapena pulasitiki ukhoza kulowa mu valavu, kulepheretsa chowombera kapena mpira kukhala bwino. Izi zimapangitsa kuti valavu ikhale yotseguka pang'ono, zomwe zimapangitsa kuti madzi azibwerera kumbuyo. Chifukwa china ndi kuvala kosavuta. Kupitilira masauzande ambiri, chisindikizo chomwe wowomberayo kapena mpira amatsekera amatha kuvala, ndikupanga kudontha kwakung'ono kosalekeza. Mu valve yothandizidwa ndi masika, kasupe wachitsulo amatha kuwononga pakapita nthawi, makamaka m'madzi ovuta, ndipo pamapeto pake amataya mphamvu kapena kusweka kwathunthu. Ichi ndichifukwa chake ndikofunikira kukhazikitsafufuzani ma valvem'malo ofikirika kuti awonedwe ndikusinthidwa. Iwo ndi chinthu chokonza, osati chokhazikika.

Kodi valavu ya mpira wa PVC imatha kupirira bwanji?

Mukutchula ma valve a polojekiti ndikuwona "150 PSI" pambali. Muyenera kudziwa ngati ndizokwanira pakugwiritsa ntchito kwanu, kapena ngati mukufuna njira yolemetsa.

Ma valve okhazikika a mpira a PVC nthawi zambiri amavotera 150 PSI ya kuthamanga kwa madzi kosagwedezeka pa 73 ° F (23 ° C). Kupanikizika kumeneku kumachepa kwambiri pamene kutentha kwa madzi akudutsa mu valve kumawonjezeka.

Tsatanetsatane wa kutentha ndi gawo lofunikira kwambiri pakumvetsetsa kuchuluka kwa kuthamanga. Pulasitiki ya PVC imakhala yofewa komanso yosinthasintha pamene ikutentha. Pamene ikufewa, mphamvu yake yolimbana ndi kukakamizidwa imachepa. Iyi ndi mfundo yofunikira yamakina a mapaipi a thermoplastic omwe ndimatsindika nthawi zonse ndi Budi ndi gulu lake. Ayenera kutsogolera makasitomala awo kuti aganizire kutentha kwa machitidwe awo, osati kukakamiza kokha.

Nayi chiwongolero chambiri cha momwe kutentha kumakhudzira kuthamanga kwa valve ya PVC:

Kutentha kwa Madzi	Pafupifupi Max Pressure Rating
73°F (23°C)	150 PSI (100%)
100°F (38°C)	110 PSI (~ 73%)
120°F (49°C)	75 PSI (50%)
140°F (60°C)	50 PSI (~ 33%)

Mawu akuti "osagwedezeka" ndi ofunikanso. Izi zikutanthawuza kuti mlingowo ukugwira ntchito pa kukanikiza kosalekeza, kosalekeza. Sichiwerengera nyundo yamadzi, yomwe ndi kuthamanga kwadzidzidzi komwe kumachitika chifukwa cha valve kutseka mofulumira kwambiri. Kukwera uku kumatha kupitilira 150 PSI ndikuwononga dongosolo. Nthawi zonse gwiritsani ntchito ma valve pang'onopang'ono kuti mupewe izi.

Mapeto

Kuyesa kukakamiza sikungawononge khalidweValve ya mpira wa PVCngati achita bwino. Nthawi zonse yesetsani pang'onopang'ono, khalani mkati mwa mphamvu ya valve ndi kutentha, ndipo lolani simenti yosungunulira kuti ichiritse.