Hlukanisa ngokushesha ipayipi Φ, DN, nama-intshi

Ekuklanyweni nasekuthengweni kwamapayipi, ukufakwa kwamapayipi nama-valve, u-Φ, u-DN kanye no-intshi (“) kuyiyunithi ezintathu zokucacisa ezididaniswa kalula. Umehluko wazo oyinhloko ukuthi: u-Φ umelela ububanzi bangaphandle obungokoqobo, i-DN ikhodi yokucacisa ohlelweni lwe-metric, kanti u-intshi ikhodi yokucacisa ohlelweni lwasebukhosini. Okulandelayo, umehluko onemininingwane kanye nokuxhumana phakathi kwalokhu okuthathu kuyachazwa:

1. Umehluko ezincazelweni eziyinhloko

Φ (ububanzi):U-Φ uhlamvu lwesiGreki olumele ububanzi bangempela bomzimba (ngokuvamile ububanzi bangaphandle). Luwuphawu olucacile kakhulu futhi aludingi ukuguqulwa. Isibonelo, u-Φ114.3 usho ukuthi ububanzi bangaphandle bangempela bombhobho bungu-114.3mm.

I-DN (Ububanzi Obujwayelekile):I-DN (Ububanzi Obujwayelekile) ububanzi obujwayelekile ohlelweni lwe-metric. Akuyona ububanzi bangaphakathi noma ububanzi bangaphandle, kodwa "usayizi ojwayelekile" ochazwe ngokwenziwa ukuze kube lula ukuxhumana (cishe isilinganiso sobubanzi bangaphakathi nobubanzi bangaphandle). Isibonelo, i-DN100 iyikhodi yokucacisa nje futhi ububanzi bayo bangaphandle bangempela bungaba ngu-114.3mm noma u-108mm.

Intshi (“):I-intshi iyiyunithi yobude ohlelweni lobukhosi (1 intshi = 25.4mm). Emapayipini, imelela futhi ububanzi obujwayelekile. Isibonelo, i-4″ imelela ipayipi elingamasentimitha angu-4, kanti ububanzi bayo bangaphandle buqiniswe ku-114.3mm.

2. Ukucaca kanye nokuhluka kokuhlonza

Φ Okucacile kakhulu:ububanzi bangaphandle bangempela buphawulwe ngokuqondile, okubonayo yilokho okutholayo, akukho ukungaqondakali.

Amasentimitha acacile kakhulu:Kumapayipi aseBrithani (iPipe), ububanzi bangaphandle obuhambisana nama-intshi buhlukile. Isibonelo, u-4″ ungu-Φ114.3, u-10″ ungu-Φ273, akukho ukuqinisekiswa okwengeziwe okudingekayo.

Kukhona ukungacaci ku-DN:Inani elifanayo le-DN lingahambisana nochungechunge oluhlukene lwe-diameter yangaphandle ezinhlelweni zamapayipi asekhaya. Isibonelo i-DN100:

- Uchungechunge lwe-I (Uchungechunge/lwamazwe ngamazwe):ububanzi bangaphandle buyi-Φ114.3mm

- Uchungechunge lwe-II (uchungechunge lwe-B/ukusetshenziswa kwasekhaya):ububanzi bangaphandle buyi-Φ108mm

Ngakho-ke, uma uthenga noma udweba, uma ubhala i-DN100 kuphela, kufanele ubonise nokuthi ngabe uchungechunge lwe-I noma lwe-II, ngaphandle kwalokho kulula ukuthenga umkhiqizo ongalungile.

3. Ubudlelwano bokuxhumana nokuguqulwa phakathi kwalaba abathathu

Lokhu okuthathu akukwazi ukuguqulwa ngokuphindaphinda nokuhlukanisa okulula kwezibalo (isibonelo, awukwazi ukusebenzisa i-DN100 / 25.4 ngqo ukuze ubale ama-intshi), kodwa kufanele uthembele kumathebula okuqhathanisa ajwayelekile embonini.

4. Izimo ezisebenzayo kanye nemininingwane yokulebula

I-DN:Ivame ukusetshenziswa kumapayipi ensimbi okuthuthwa ngamanzi negesi (afakwe i-galvanized noma angafakwanga i-galvanized), amapayipi ensimbi ephonswe, amapayipi epulasitiki, njll.

Φ:Ivame ukusetshenziswa kumapayipi ensimbi angenamthungo, amapayipi ensimbi engagqwali, amapayipi ensimbi angenawo ugesi, njll. Uma kufakwa uphawu, ivame ukusetshenziswa kanye nobukhulu bodonga, njenge-Φ108×4 (okusho ububanzi bangaphandle obungu-108mm, ubukhulu bodonga obungu-4mm).

Intshi:Isetshenziswa kakhulu kumapayipi kanye nokufakwa kwama-valve ezinhlelweni zaseMelika naseYurophu, kanye nasemasimini ezimboni avamile njengamafutha negesi yemvelo.

5. Isifinyezo

Φ:Imele ububanzi bangempela bangaphandle bepayipi. Ukukhetha okufanelanayoivalvu yebhabhathane, ivalvu yesango, futhiivalvu yokuhlola, vele uhlole ububanzi bangaphandle bangempela bepayipi ngqo.

I-DN:Kuyikhodi yobubanzi obujwayelekile be-metric kuphela. Uma uthenga ama-valve, qiniseka ukuthi uqinisekisa uchungechunge lwe-A/I kanye ne-B/II ukuze ugweme ukwehluleka ukuxhuma ama-flange.I-TWSizimpahlaamavalvu ebhabhathane, amavalvu esango, ama-valve okuhlolakanye neminye imikhiqizo. Lapho u-oda, amapharamitha ochungechunge kumele acaciswe ukuqinisekisa ukufana kwamapayipi.

Intshi (“):Ububanzi obujwayelekile baseBrithani, obusetshenziswa kakhulu kuma-valve angeniswa kwamanye amazwe. 25.4 abukwazi ukusetshenziselwa ukuguqula ububanzi bangaphandle ngqo. Kudingeka kuqinisekiswe ngokubhekisela etafuleni elijwayelekile.