Paipa maitai porowhitaHe momo paipa rino te mea i hangaia mā te huri i tētahi rīpene rino kia rite ki te āhua o te paipa i tētahi koki porowhita (kia hanga koki) kātahi ka whakarewahia. He mea whakamahi whānuitia i roto i ngā pūnaha paipa mō te tuku hinu, hau māori me te wai.
Ko te diameter ingoa ko te diameter ingoa o te paipa, he uara ingoa o te rahi o te paipa. Mō ngā paipa maitai porowhita, ko te diameter ingoa he tata tonu ki te diameter roto, ki waho rānei, engari kāore e rite.
Ko te tikanga ka whakaatuhia mā te DN me tētahi tau, pērā i te DN200, e tohu ana i tētahi paipa maitai me te diameter ingoa o te 200 mm.
Te whānuitanga o te diameter ingoa (DN):
1. Awhe diameter iti (DN100 - DN300):
DN100 (4 inihi)
DN150 (6 inihi)
DN200 (8 inihi)
DN250 (10 inihi)
DN300 (12 inihi)
2. Awhe whānui waenga (DN350 - DN700):
DN350 (14 inihi)
DN400 (16 inihi)
DN450 (18 inihi)
DN500 (20 inihi)
DN600 (24 inihi)
DN700 (28 inihi)
3. Awhe Diameter Nui (DN750 - DN1200)
DN750 (30 inihi)
DN800 (32 inihi)
DN900 (36 inihi)
DN1000 (40 inihi)
DN1100 (44 inihi)
DN1200 (48 inihi)
4. Awhe whānui tino nui (DN1300 me runga ake)
DN1300 (52 inihi)
DN1400 (56 inihi)
DN1500 (60 inihi)
DN1600 (64 inihi)
DN1800 (72 inihi)
DN2000 (80 inihi)
DN2200 (88 inihi)
DN2400 (96 inihi)
DN2600 (104 inihi)
DN2800 (112 inihi)
DN3000 (120 inihi)
Diameter o waho (OD): Ko te OD te diameter o te mata o waho o te paipa maitai porowhita. Ko te OD o te paipa maitai porowhita ko te rahi tuturu o waho o te paipa. Ka taea te tiki i te OD mā te ine tuturu, ko te tikanga he mirimita (mm).
Diameter o Roto (ID): Ko te ID te diameter o te mata o roto o te paipa maitai porowhita. Ko te ID te rahi tuturu o roto o te paipa. Ko te ID ka tatauhia mā te tango i te matotoru pakitara e rua i te OD i roto i ngā mirimita (mm) ID = OD-2 x Matotoru o te Pakitara
Mara tono
He rerekē ngā whakamahinga o ngā paipa maitai porowhita me ngā diameter ingoa rerekē i roto i ngā mara rerekē:
1. te diameter itiPaipa Rino Ssaw(DN100 - DN300): e whakamahia whānuitia ana i roto i te hangarau ā-tāone mō ngā paipa wai, ngā paipa rerenga wai, ngā paipa hau, me ētahi atu.
2. te whānui waengaPaipa Ssaw(DN350 - DN700): e whakamahia whānuitia ana i roto i te hinu, te hau māori me te wai ahumahi. 3. te paipa maitai porowhita nui te whānui (DN100 - DN300): e whakamahia whānuitia ana i roto i te paipa wai hangarau ā-tāone, te paipa waikeri, te paipa hau, me ētahi atu.
3.Paipa Ssaw Diameter Nui(DN750 - DN1200): e whakamahia ana i roto i ngā kaupapa tuku wai tawhiti, ngā paipa hinu, ngā kaupapa ahumahi nui, pērā i te kawe waka waenga.
4. te whānui tino nuiPaipa maitai waro Ssaw(DN1300 me runga ake): e whakamahia ana mō ngā kaupapa paipa wai tawhiti, hinu me te hau whakawhiti-rohe, ngā paipa ruku wai me ētahi atu kaupapa hanganga nui.
Ko te whānui ingoa me ētahi atu whakaritenga o te paipa maitai porowhita ka hangaia i runga anō i ngā paerewa me ngā whakaritenga e tika ana:
1. paerewa o te ao: API 5L: e pā ana ki te paipa maitai kawe paipa, e tohu ana i te rahi me ngā whakaritenga rauemi o te paipa maitai porowhita ASTM A252: e pā ana ki te paipa maitai hanganga, e tohu ana i te rahi me ngā whakaritenga hanga o te paipa maitai porowhita.
2. paerewa ā-motu: GB/T 9711: e pā ana ki ngā paipa maitai mō te kawe i te umanga hinu me te hau, e tohu ana i ngā whakaritenga hangarau o te paipa maitai porowhita. gb/t 3091: e pā ana ki ngā paipa maitai whakarewa mō te kawe wai pēhanga iti, e tohu ana i ngā ine me ngā whakaritenga hangarau o te paipa maitai porowhita.
Wā tuku: Hepetema-02-2024
