Valavu Yoyang'anira Mpira Yabwino Kwambiri Yamakampani Yosabwezera Mpira Wogulitsa fakitale ku China Wopanga fakitale
Kodi valavu yosabwezera ndi chiyani?
AValavu yosabwezerandi valavu yosavuta komanso yodalirika yokhala ndi mpira wozungulira ngati gawo lokhalo losuntha kuti lilepheretse kuyenda kwa madzi m'mbuyo. Chifukwa cha kapangidwe kake kosavuta komanso kosasamalira, valavuyi nthawi zambiri imatchulidwa ndikugwiritsidwa ntchito m'malo okwerera madzi akuda omwe amatha kuyikidwa pansi pamadzi.
Valavu yosabwezeraMuli mpira womwe umakhala pampando, womwe uli ndi dzenje limodzi lokha. Umagwira ntchito pogwiritsa ntchito mpira womwe umakwera ndi kutsika mkati mwa valavu. Mpandowo umapangidwa kuti ugwirizane ndi mpirawo, ndipo chipindacho chimakhala ndi mawonekedwe ofanana kuti chitsogolere mpirawo kupita pampando kuti utseke ndikuyimitsa kuyenda kwa m'mbuyo. Mpirawo uli ndi mulifupi wokulirapo pang'ono kuposa wa dzenje lolowera (mpando). Pamene kuthamanga kwa mpando kukupitirira kuposa mpirawo, madzi amaloledwa kuyenda kudzera mu valavu. Koma kuthamanga kwa mpirawo kukapitirira kuthamanga kwa pansi pa mpandowo, mpirawo umabwerera kuti upumule pampandowo, ndikupanga chisindikizo chomwe chimaletsa kubwerera m'mbuyo. Mpirawo umakwera mmwamba ndi pansi mkati mwa valavu kutengera kuyenda kwa madziwo ndikutseka mpando wopangidwa ndi makinawo pamene palibe kuyenda kapena kuyenda kwa m'mbuyo komwe kumachitika ndikutseka mpando kuti uletse kuyenda kwa madziwo. Ma valve owunikira omwe ali ndi mpira wolumikizidwa ndi Buna-N monga muyezo komanso ndi mipira ya phenolic yosagonjetsedwa ndi dzimbiri kuti igwiritsidwe ntchito.
Zinthu zazikulu za valavu yosabwerera
Makhalidwe ndi ubwino waValavu yosabwezera
- *valavu yoyezera mpira ndivalavu yosavuta komanso yodalirika yokhala ndi mpira wozungulira ngati gawo lokhalo losuntha loletsa kuyenda kwa m'mbuyo,kapangidwe kopanda kukonza, koyenera malo okwerera madzi otayira omwe amatha kuyikidwa pansi pa madzi.
- *NortechValavu Yowunikira MpiraZimadziyeretsa zokha, pamene mpirawo umazungulira panthawi yogwira ntchito zomwe zimachotsa chiopsezo cha zinyalala zomwe zimamatira pa mpirawo.
- *Bore yodzaza komanso yosalala imatsimikizira kuyenda bwino komanso kutayika kwa mphamvu zochepa komanso imachotsa chiopsezo cha malo omwe pansi pake angalepheretse kutsekedwa bwino. Mpira wamba wapangidwa ndi maziko achitsulo okhala ndi rabara ya NBR, ndipo kulimba kwa rabara kumakonzedwa bwino kuti mpirawo usamatirire pampando. Mipira ya polyurethane ndi yoyenera kugwiritsidwa ntchito popanga zinthu zolimbitsa thupi komanso pamene mipira yosiyanasiyana ikufunika kuti ipewe phokoso ndi nyundo yamadzi.
Mafotokozedwe aukadaulo a valavu yosabwerera
Mafotokozedwe aukadaulo aValavu yosabwezera
| Kapangidwe ndi Kupanga | BS EN12334 |
| Maso ndi maso | DIN3202 F6/EN558-1 |
| Mapeto a Flange | EN1092-2 PN10, PN16 |
| Thupi | Chitsulo chopangidwa ndi ductile GGG50 |
| Mpira | Chitsulo chodulira + NBR / Chitsulo chodulira + EPDM |
| M'mimba mwake mwa dzina | DN40-DN500 |
| Kuyeza kwa kupanikizika | PN10, PN16 |
| Sing'anga yoyenera | Madzi, zimbudzi, ndi zina zotero |
| Kutentha kwa ntchito | 0~80°C(mpira wa NBR), -10~120°C(mpira wa EPDM) |
Chiwonetsero cha Zamalonda: Valavu yosabwezera
Kugwiritsa ntchito valavu yosabwezera
Mtundu uwu waValavu yosabwezeraimagwiritsidwa ntchito kwambiri m'mafakitale ogwiritsira ntchito madzi otayira, magetsi, ndi makampani opanga zinthu. Valavu yoyezera mpira ndi yoyenera kugwiritsidwa ntchito m'malo oipitsidwa (mpaka 120˚F) chifukwa valavu yooneka ngati mpira imaletsa kusonkhanitsa dothi. Nthawi zambiri malo onyamulira madzi otayira amakhala ndi valavu yoyezera mpira kuti isayende mobwerera m'mbuyo. Imagwiritsidwanso ntchito kwambiri m'malo opopera madzi omwe sapezeka kawirikawiri, chifukwa amafunika kukonza pang'ono,
