“DN”, “Φ" cun """. Nihin ah, an pathum karlak pehtlaihnak kong kha nangmah caah ka vun langhter lai, bawmhchanh ka duh!
inch cu zeidah a si”
Inch (“) cu American phunglam ah hman tawnmi thilri tthencheunak pakhat a si, cu hna cu thir pipe,valves, flanges, elbows, pumps, tees, tbk., cu bantuk cu a sining cu 10′′ a si.
Inch (inch, a tawinak in in.) cu Dutch holh in kutdonghrolh tinak a si, cun inch cu kutdonghrolh sauhnak a si. A ngaingai ti ahcun, kutdong sau zong aa dang. Kum zabu 14 ah, Siangpahrang Edward II nih “Standard Legal Inch” timi phunglam kha a thanh. A phunglam cu barli hnah laifang in thimmi le tlar khat in chiahmi a ngan bikmi rawl kung pathum hna an sauhnak cu inch pakhat a si lai.
A tlangpi in 1′′=2.54cm=25.4mm
DN timi cu zeidah a si
DN cu Tuluk le European system ah hman tawnmi thilri tthencheunak unit a si, cun pipe hmelchunhnak caah tthencheunak zong a si,valves, flanges, fittings, le pumps, tibantukDN250.
DN nih hin pipe i a min in a kauhnak kha a chim duhmi a si (a min in a kauhnak tiah auhmi zong a si), hngalhternak: mah cu a lenglei kauhnak le a chunglei kauhnak zong a si lo, asinain lenglei kauhnak le chunglei kauhnak i a tlangpi a si, a tlangpi in chunglei kauhnak tiah auhmi a si.
Zei dah a siΦ
Φ cu a tlangpi in hmanmi unit a si, cucu pipe, asiloah elbows, thir round le thilri dangdang hna i an lenglei diameter kha a chim duhmi a si.
Cucaah an karlak ah zeidah pehtlaihnak a um?
Pakhatnak ah, “”" le “DN” in hmelchunhmi sullam hna cu aa khat dih. An sullam cu a tlangpi in a tlangpi in a kauhning a si, hi langhternak a ngan le a hme a langhter, cunΦ cu pahnih fonhmi a si.
Tahchunhnak ah
Tahchunhnak ah, thir pipe cu DN600 a si ahcun, cu thir pipe cu inches in hmelchunh a si ahcun, 24′′ ah a cang. Mah pahnih karlak ah pehtlaihnak a um maw?
A phi cu a si! A tlangpi inch cu nambar dihlak a si i 25 in direct in karhter ahcun DN he aa tluk, cu hna cu 1′′*25=DN25, 2′′*25=50, 4′′*25=DN100, tbk. 1/2′′, 3/4′′, 1-1/4′′, 1-1/2′′, 2-1/2′′, 3-1/ 2′′ ti bantuk in, cu hna cu cuticun tuak khawh an si lo, asinain tuakmi cu aa khat dih, a tlangpi in a langhtermi man:
1/2′′=DN15
3/4′′=DN20
1-1/4′′=DN32
1-1/2′′=DN40
2′′=DN50
2-1/2′′=DN65
3′′=DN80
Post caan: Feb-03-2023
