Takirere Pūrerehua Tauhou Takirua e noho ana i te rapa
Tetakirere pūrerehua rerekē takirua— e mōhiotia ana ko te takirere pūrerehua takirua — he āhua kōpae ahurei kei reira te kakau e wehea ana mai i te rārangi pokapū o te kōpae me te rārangi pokapū o te paipa. Mā tēnei hoahoa takirua e taea ai e te kōpae te neke atu i te nohoanga i te wā tonu e whakatuwheratia ana, ka kore ai e pā tonu te kōpae me te nohoanga i te wā e whakamahia ana.
Ko te mutunga mai he tino iti te taipana whakahaere, he iti te kakahu o te nohoanga, ā, he roa ake te ora ratonga ki te whakataurite ki ngā takirere pūrerehua porowhita. Ina tuwhera katoa, kāore te kōpae e pā ki te nohoanga, kia kore ai e pakaru te mata hiri i roto i ngā mano huringa whakahaere.
He mea hanga te mowhiti hiri ki te elastomer, he mea whakauru ki roto i te kōpae, ā, he mea mau ki te pereti taupoki, hei hanga i tētahi mata hiri tonu, kore e mutu huri noa i te porowhita katoa. Mā tēnei hoahoa ka taea te hiri i ngā taha e rua, ā, he mea whakarite noa mō ngā mahi wai ā-tāone, ngā tipu maimoatanga wai, me ngā pūnaha paipa whānui.
He pai mō ngā mahi hiri kotahi-angihanga me ngā mahi hiri rua-angihanga. Ko te whakatauranga pēhanga paerewa ANSI Class 150 / PN10 / PN16 / PN25.
Hoahoa Tauhou Takirua— ko te āhua o te kōpae takirua taurite ka neke atu te kōpae i te nohoanga i muri i ētahi nekehanga noa o te whakatuwheratanga, ka whakakore i te waku o te nohoanga puta noa i te whiu, ā, ka roa ake te ora o te nohoanga ki te whakaritea ki ngā hoahoa porowhita.
Ka tukuna te taumahatanga o te kōpae i muri i te whakatuwheratanga mō ētahi nekehanga, ka whakaiti i te pakaru o te hiri kōpae. Ka whakaitihia hoki e te hoahoa te pēhanga nohoanga, ka whakarite kia iti te taipana mahi puta noa i te roanga o te mahi a te takirere.
Ko te hoahoa nohoanga whakauru he nohoanga rino ngāwari kua pania ki te epoxy kua whakauruhia ki roto i te tinana. Ko te hoahoa nohoanga kowiri tira ka tukuna he mowhiti nohoanga ka taea te whakakapi me te hiri ki te mowhiti-O hei aukati i te turuturu i raro i te mowhiti nohoanga.
Ka taea te whakakapi katoa i te hiri o te pou i raro i te pēhanga, kia māmā ai te tiaki i te mara me te kore e kati te raina. Ka whakarite ngā hiri EPDM kia piri te roto; ka tiaki ngā hiri NBR i ngā poke o waho me te urunga mai o te wai.
Mā te āhua o te hiri kōpae ka tika te tūnga me te mahi pono. Mā te rapa kounga teitei ka taea te whakaiti i te rahinga hiri, ka iti hoki ngā taipana katinga. Kua whakaaetia te hiri EPDM e te ACS me te WRAS mō ngā tono wai inu.
| Hoahoa me te hanga | EN 593 / API 609 |
| Whakamutua te hononga | He takirua ngā flange |
| Te mahi | Ā-ringa / Hauātea / Hiko |
| Awhe rahi | NPS 14"–120" (DN350–DN3000) |
| Te whakatauranga pēhanga | PN10 / PN16 / PN25 | Akomanga ANSI 150/275/500 |
| Kanohi ki te kanohi | EN 558-1 Rangatū 13 / Rangatū 14 |
| Pito o te flange | EN 1092-2 / ASME B16.5 / AWWA C207 / ASME B16.47 |
| Tirotiro | EN / AWWA C504 / C519 / NSF 61/372 |
| Tinana | ASTM A536 65-45-12 / GGG-40 / GGG40.3 / SS 1.4408 |
| Kōpae / Pereti | DI+Ni / CF8 / CF8M / C954 / C958 / GGG-40 / SS 1.4408 |
| Pūtake / Kākano | SS431 / SS420 / SS410 / SS304 / SS316 |
| Nohoanga / Whakatakotoranga | NBR / EPDM / Viton / PTFE / PFA |
| Ngā pine whakarara | SS416 / SS316 |
| Te pū | Parahi / PTFE |
| mowhiti-O | NBR / EPDM / Viton / PTFE |
| Kī | Rino |
