Igitigiri c’amazi Φ, igitigiri c’amazi DN, inch” Woba ushobora gutandukanya ivyo bipimo vy’ibisobanuro?

Akenshi hariho abagenzi batatahura isano riri hagati y’ibisobanuro vy’“DN”, “ .Φ" kandi """. Uyu musi, nzobabwira mu ncamake ubucuti buri hagati y’ivyo bitatu, nizigiye ko nzobafasha!

inch ni iki”

Inch (“) ni ikigereranyo gikoreshwa cane mu bijanye n’ubuhinga bwa Amerika, nk’imiyoboro y’icuma,amavalve, flanges, ibitugu, amapompo, ama tees, n’ibindi, nk’uko ivyerekeye ari 10′′.

Inch (inch, mu buryo bugufi ngo in.) bisobanura urukumu mu giholandi, kandi inch ni uburebure bw’urukumu. Ego ni ko, uburebure bw’igikumwe na bwo nyene buratandukanye. Mu kinjana ca 14, Umwami Edouard wa II yaratangaje “Inch Legal Standard”. Itegeko ni uko uburebure bw’intete zitatu nini cane zitorwa hagati mu matwi ya sayiri zigashirwa mu murongo ari inci imwe.

Muri rusangi 1′′=2.54cm=25.4mm

DN ni iki

DN ni igice gikoreshwa cane mu Bushinwa no mu Buraya, kandi ni co gikoreshwa mu gushirako ikimenyetso imiyoboro,amavalve, amaflanse, ibikoresho vyo gushiramwo n’amapompa, nk’akarorero .DN250.

DN yerekeza ku murongo w’izina w’umuyoboro (uzwi kandi nk’umurongo w’izina), iciyumviro: uwo si umurongo w’inyuma canke umurongo w’imbere, ahubwo ni umurongo w’inyuma n’umurongo w’imbere, witwa umurongo w’imbere w’imbere.

Ni ikiΦ

Φ ni igice gisanzwe, kikaba kivuga umurongo w’inyuma w’imiyoboro, canke ibikokora, ivyuma bizunguruka n’ibindi bikoresho.

None ni irihe sano riri hagati yabo?

Mbere na mbere, insobanuro zigaragazwa na “”" na “DN” zirasa cane. Mu bisanzwe zisobanura umurongo w’izina, zigaragaza ubunini bw’ivyo bisobanuro, kandi .Φ ni uguhuza ivyo bibiri.

Nk'akarorero

Nk’akarorero, iyo umuyoboro w’icuma ari DN600, iyo uwo muyoboro w’icuma nyene ufise ikimenyetso c’inci, uba 24′′. Hoba hari isano hagati y’ivyo bibiri?

Inyishu ni egome! Inch rusangi ni umubare wose kandi iyo igwijwe ataco ihinduye na 25 ingana na DN, nka 1′′*25=DN25, 2′′*25=50, 4′′*25=DN100, n’ibindi. points nka 1/2′′, 3/4′′, 1-1/4′′, 1-1/2′′, 2-1/2′′, 3-1/ 2′′ n’ibindi, ivyo ntibishobora kubarwa gutyo, ariko igiharuro ni nk’ico nyene, mu bisanzwe agaciro kavuzwe:

1/2"=DN15

3/4"=DN20

1-1/4"=DN32

1-1/2 "=DN40

"=DN50

2-1/2 "=DN65

"=DN80