Valavu Yoyang'anira Mpira Yapamwamba Kwambiri Yoyandama China wopanga fakitale
Kodi valavu yoyezera mpira woyandama ndi chiyani?
Valvu yowunikira ndi mtundu wa valavu yogwirira ntchito mbali imodzi, komanso ngati mavalavu osabwerera.
AValavu yowunikira mpira woyandamaNdi valavu yosavuta komanso yodalirika yokhala ndi mpira wozungulira ngati gawo lokhalo losuntha loletsa kuyenda kwa madzi m'mbuyo. Chifukwa cha kapangidwe kake kosavuta koyenda bwino komanso kosasamalira, valavuyi nthawi zambiri imatchulidwa ndipo imagwiritsidwa ntchito m'malo okwezera madzi akuda omwe amatha kulowa m'madzi. Mpando wa valavu wodzaza ndi madoko umapangidwa mwapadera kuti mpirawo ukhale wolimba popanda kulowa mu mpando wa valavu. Pakugwiritsa ntchito valavu yotulutsa mpweya kapena yoletsa kusefukira kwa madzi, mpira "woyandama" m'malo mwa "womira".
Valavu yowunikira mpira woyandamaMuli 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 chimapangidwa mozungulira kuti chitsogolere mpirawo kupita pampando kuti utseke ndikuletsa kuyenda kwa mpweya wobwerera m'mbuyo. Mpirawo uli ndi mulifupi wokulirapo pang'ono kuposa wa dzenje lolowera (mpando). Pamene kupanikizika kumbuyo kwa mpando kukupitirira kuposa pamwamba pa mpirawo, madzi amaloledwa kuyenda kudzera mu valavu. Koma kupanikizika pamwamba pa mpira kukapitirira kupsinjika pansi pa mpandowo, mpirawo umabwerera kuti upumule pampandowo, ndikupanga chisindikizo chomwe chimaletsa kubwerera m'mbuyo.
Zinthu zazikulu za valavu yoyang'anira mpira woyandama
Makhalidwe ndi ubwino waValavu Yowunikira Mpira
- *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.
- *Mpando wa valavu wodzaza ndi ma ports wapangidwa mwapadera kuti mpirawo ukhale wolimba popanda kulowa mu valavu.
- *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 yoyang'anira mpira woyandama
Mafotokozedwe aukadaulo a valavu yoyang'anira mpira woyandama
| 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 yowunikira mpira woyandama
Kugwiritsa ntchito valavu yowunikira mpira woyandama
Mtundu uwu waValavu yowunikira mpira woyandamaimagwiritsidwa 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 oyezera 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.
