Diametro na balbula Φ, diametro DN, pulgada” Sarag mon nibiig irayan yunit na detalye?

Wala ray kakaaro ya ag da natatalosan so siglaotan na saray detalye na “DN”, “Φ" insan """. Natan, isumaryo ko so relasyon na talora parad sika, ya iilaloan kon natulongan ta ka!

anto so sakey a pulgada”

Say pulgada (") et sakey a kaslakan ya uusaren ya yunit na detalye ed sistema na Amerika, a singa saray tubo ya asero,balbula, flanges, elbows, pumps, tees, tan arum ni, a singa say specification et 10′′.

Say inch (inch, ya pinatikeyan ya in.) et mankabaliksan na thumb ed Dutch, tan say inch et say karukey na thumb. Siempre, nanduruma met so karukey na thumb. Nen koma-14 a siglo, inyabawag nen King Edward II so “Standard Legal Inch”. Say kondisyon et say karukey na taloran sankabalgan ya bukel ya pinili manlapud pegley na saray sebada tan inuksoy ed sakey a hilera et sakey pulgada.

Kaslakan et 1′′=2.54cm=25.4mm

Anto so DN

Say DN et sakey a kaslakan ya uusaren ya specification unit ed China tan European systems, tan saya met so specification parad panagmarka na saray tubo,balbula, flanges, fittings, tan pumps, a singa sayDN250.

Say DN et manutukoy ed nominal a diametro na tubo (ya tatawagen met ya nominal a diametro), tandaan: aliwan saya so paway a diametro odino say loob a diametro, noagta say average na paway a diametro tan loob a diametro, a tatawagen ya average ya loob a diametro.

Anto toΦ

Φ et sakey a kaslakan a yunit, ya ontutukoy ed paway a diametro na saray tubo, odino siko, malimpek ya asero tan arum niran materyales.

Kanian antoy koneksion da?

Unona ed amin, saray kabaliksan ya akamarka na “”" tan "DN" et ngalngalin pareho. Say manunan kabaliksan da et say nominal a diametro, ya mangipapanengneng ed kabaleg na sayan detalye, tanΦ so kombinasyon na sarayan duara.

Singa bilang

Singa bilang, no say sakey a tubo ya bakal et DN600, no say parehon tubo ya bakal et markaan na pulgada, magmaliw itan ya 24′′. Wala kasi koneksion na saratan a dua?

Say ebat et on! Say inkalapagan ya pulgada et sakey ya integer tan direktan imultiply ed 25 et mipara ed DN, singa say 1′′*25=DN25, 2′′*25=50, 4′′*25=DN100, tan arum nira. Siempre, wala ray nanduruman singa say 3′′*25=75 Say pangipabilog et DN80, tan wala ray semicolon odino decimal points singa 1/2′′, 3/4′′, 1-1/4′′, 1-1/2′′, 2-1/2′′, 3-1/ 2′′ tan arum nira, saraya so ag nayarin kalkulaen a singa ontan, balet say kalkulasyon et ngalngalin pareho, diad tua et say nibaga ya balor:

1/2′′=DN15

3/4′′=DN20

1-1/4′′=DN32

1-1/2′′=DN40

2′′=DN50

2-1/2′′=DN65

3′′=DN80