Whakamāramatanga oDiameter Ingoa
Ko te diameter ingoa, e whakarapopototia ana ko DN (mai i te kupu Tiamana "Durchmesser" ko te tikanga diameter) i roto i ngā pūnaha ine, ko te NPS (Nominal Pipe Size) rānei i roto i ngā pūnaha imperial, he tohu rahi paerewa mō ngā paipa me ngā wāhanga e pā ana. Ehara i te ine tika i te diameter ā-tinana o te paipa, o te hononga rānei. Engari, he tohutoro noa hei whakarite i te hototahitanga i waenga i ngā wāhanga rerekē i roto i te pūnaha paipa.
Hei tauira, i roto i tētahi paipa DN 50 i roto i te pūnaha ine, kāore pea te whānui o waho o te paipa e tino rite ki te 50 mm. Ko te whānui o waho mō tētahi paipa maitai DN 50, e ai ki ngā whakaritenga paerewa, he tata ki te 60.3 mm te nuinga. Ka whakamahia te whānui ingoa hei whakahaere i te tautuhi me te whiriwhiri i ngā wāhanga. Ko ngā wāhanga katoa he rite te whānui ingoa, pērā i ngā paipa, ngā flanges, me ngā valves, kua hangaia kia uru pai tetahi ki tetahi.
Te Hiranga o te Whakapūmautanga
He maha ngā painga o te whakapūmau i te whānui ingoa. Mā tēnei ka ngāwari te whakawhiti i ngā wāhanga. I roto i tētahi wheketere ahumahi nui me ngā paipa me ngā taputapu maha, mā te whai i tētahi pūnaha whānui ingoa kua whakapūmautia ka taea te kimi me te tāuta i ngā wāhanga whakakapinga. Hei tauira, ki te hiahia kia whakakapia tētahi takirere i roto i te paipa DN 80, ko tētahi takirere he whānui ingoa DN 80, ahakoa te kaihanga (mēnā ka whai rātou i ngā paerewa e tika ana), me uru pai ki ngā paipa o nāianei.
Heoi anō, ka māmā ake te tukanga hoahoa. Ka taea e ngā kaihangarau te tautuhi i ngā wāhanga i runga i ngā diameter ingoa me te kore e manukanuka ki ngā rerekētanga iti o ngā diameter tuturu. Ka tere ake te hoahoa o ngā pūnaha paipa, nā te mea ka taea e rātou te arotahi ki te tahora whānui me te mahi, kaua ki te noho pōturi ki ngā taipitopito rahi o ia wāhanga.
Ngā Rerekētanga i waenga i te Imperial me te MetricNgā Diametera Ingoa
I roto i te pūnaha imperial, ko te NPS e hangai ana ki ngā inihi. Hei tauira, he rerekē te diameter o waho o te paipa NPS 2-inihi ki te paipa DN 50 i roto i te pūnaha ine, ahakoa he rite tonu te whānuitanga o te rahi. He huinga rahi paerewa anō tō te pūnaha imperial mō ngā paipa me ngā hononga, ā, kāore i te māmā tonu te huri i waenga i te NPS imperial me te DN ine. Heoi, kua whakapau kaha ki te whakatū i ngā ōritenga tata hei whakahaere i te hokohoko o te ao me te mahi tahi i roto i ngā ahumahi e whakamahi ana i ngā pūnaha e rua.
Hei whakamutunga, ko te diameter ingoa he ariā taketake i roto i te ao o ngā pūnaha paipa. Mā tēnei ka whakaratohia he huarahi paerewa mō te tautuhi me te whakataurite i ngā wāhanga, ka taea ai te hoahoa, te tāuta, me te tiaki pai i ngā pūnaha whakahaere wai puta noa i ngā ahumahi rerekē, mai i ngā whare whakapai hinu me te hau ki ngā whatunga tuku wai.
Wā tuku: Maehe-17-2025