Mɛni ji “inch”: Inch (“) ji nɔ ko ni afɔɔ naa yɛ Amerika gbɛjianɔtoo lɛ he, tamɔ dade paipii, valves, flanges, elbows, pɔmpii, tee, kɛ ekrokomɛi, tamɔ nɔ ni akɛtsɔɔ nɔ ko lɛ ji 10′′.
Inches (inch, ni afo mli kuku akɛ in.) shishi ji tsitsi yɛ Dutch mli, ni inch kome ji tsitsi lɛ kɛlɛ. Eji anɔkwale akɛ, esoro bɔ ni adesa tsitsi lɛ sɛɛ tsɛɔ ha lɛ hu. Yɛ afii ohai 14 lɛ mli lɛ, Maŋtsɛ Edward II jie “mla naa inchi ni ato he gbɛjianɔ” lɛ kpo.
Atsɔɔ akɛ ŋmaa wuji etɛ ni ahala kɛjɛ barle toi lɛ teŋgbɛ ni ato he gbɛjianɔ yɛ sɛɛ mli lɛ kɛlɛ ji inchi kome.
Nɔ ni fe fɛɛ lɛ, 1′′=2.54cm=25.4mm
Mɛni ji DN: DN ji nɔ ko ni afɔɔ nitsumɔ yɛ Chinese kɛ Europe gbɛjianɔtoi amli. Eji nɔ ko hu ni akɛyooɔ paipii, valves, flanges, paipii ahe nibii kɛ pɔmpii, tamɔ DN250.
DN tsɔɔ paipii lɛ mli ŋwɛi ŋta (ni ale lɛ hu akɛ ŋwɛi ŋta), kadimɔ: enɛ jeee kponɔgbɛ ŋta loo mligbɛ ŋta, eji kponɔgbɛ ŋta kɛ mligbɛ ŋta lɛ mlijaa, ni atsɛɔ lɛ mligbɛ ŋta.
Mɛni ji Φ: Φ ji nɔ ko ni afɔɔ namɔ, ni tsɔɔ paipii, tsitsii, dade kokroo kɛ nibii krokomɛi asɛɛgbɛ ŋwɛigbɛ. Abaanyɛ akɛɛ akɛ eji diamita hu. Akɛ nɔkwɛmɔnɔ lɛ, Φ609.6mm tsɔɔ kponɔgbɛ ŋwɛi ŋta ni ji 609.6mm.
Amrɔ nɛɛ ni wɔyɔse nɔ ni nɛkɛ kui etɛ nɛɛ damɔ shi kɛha lɛ, mɛni ji tsakpaa ni yɔɔ amɛteŋ?
Klɛŋklɛŋ lɛ, ““DN” shishinumɔ lɛ miihe afee nɔ kome kɛ DN nɔ lɛ, titri lɛ etsɔɔ nominal diameter, ni tsɔɔ bɔ ni nɛkɛ tsɔɔmɔ nɛɛ da ha, ni Φ ji ni akɛ enyɔ lɛ afee ekome.
Akɛ nɔkwɛmɔnɔ lɛ: kɛji dade paipi ko ji DN600, ni akadi dade paipi kome too lɛ nɔŋŋ kɛ inch lɛ, ebafeɔ 24′′. Ani tsakpaa ko yɛ nibii enyɔ nɛɛ ateŋ?
Hetoo lɛ ji hɛɛ! Inch ni afɔɔ namɔ ji yibɔ ni ji 25 ni akɛtoɔ he tɛ̃ɛ, ni kɛ DN yeɔ egbɔ, tamɔ 1′′*25=DN25 2′′*25=50 4′′*25=DN100 kɛ ekrokomɛi.
Eji anɔkwale akɛ, srɔtoi hu yɛ, tamɔ 3′′*25=75, ni abɔle he kɛyashɛ DN80 ni bɛŋkɛ fe fɛɛ lɛ he, kɛ inchi komɛi ni akɛ semicolon loo decimal points woɔ mli, tamɔ 1/2′′ 3/4′′ 1-1/4′′ 1-1/2′′ kɛ ekrokomɛi enɛɛmɛi nyɛŋ afee, no, 21/2. abu he akɔntaa tamɔ nɛkɛ, shi akɔntaabuu lɛ tamɔ nɔ kome, titri lɛ sɛɛnamɔ ni atsɔɔ:
1/2"=DN15 3/4"=DN20 1-1/4"=DN32 1-1/2"=DN40 2-1/2"=DN65 3-1/2"=DN90
Be ni akɛmajeɔ: Otsokirikiri-10-2022
