“DN”, “Φ" leh """. Vawiin hian an pathum inzawmna hi i tan ka rawn tarlang dawn a, i tanpui theih beiseiin!
inch khat chu eng nge ni”
Inch (“) hi American system-a specification unit hman tlanglawn tak a ni a, chu chu steel pipe,valve te a awm, flanges, elbows, pumps, tees, etc., specification ang chi te chu 10′′ a ni.
Inch (inch, abbreviated as in.) tih hian Dutch tawngin thumb tihna a ni a, inch khat chu kutpui sei zawng a ni. Dik tak chuan kutpui sei zawng pawh a inang lo. Kum zabi 14-naah khan Lal Edward II-na chuan “Standard Legal Inch” a puang ta a ni. Stipulation chu barley beng lai tak atanga thlan chhuah, a zawna dahkhawm, buh lian ber pathum sei zawng chu inch khat a ni tur a ni.
A tlangpuiin 1′′=2.54cm=25.4mm a ni
DN chu eng nge ni
DN hi China leh European system-a hman tlanglawn tak specification unit a ni a, pipe marking atana specification a ni bawk a,valve te a awm, flanges, fittings, leh pumps, te chuDN250 a ni.
DN hian pipe-a nominal diameter (nominal diameter tia hriat bawk) a kawk a, hre reng ang che: hei hi pawn lam diameter emaw chhung lam diameter emaw a ni lo va, pawn lam diameter leh chhung lam diameter average a ni zawk a, chu chu average inner diameter an ti a ni.
Eng hiΦ
Φ chu common unit a ni a, chu chuan pipe, emaw elbow, round steel leh thil dang pawn lam diameter a kawk a ni.
Chuti a nih chuan eng nge an inzawmna?
A hmasa berah chuan “”" leh “DN” hmanga chhinchhiah awmzia hi a inang vek mai. A bul berah chuan nominal diameter tihna a ni a, hei hian he specification lian tham tak a tarlang a, lehΦ tih chu a pahnih inzawmkhawmna a ni.
entir nan
Entirnan, steel pipe pakhat chu DN600 a nih chuan, chu steel pipe chu inches-a chhinchhiah a nih chuan 24′′ a lo ni ta a ni. An pahnih inkarah hian inzawmna a awm em?
A chhanna chu a ni! General inch hi integer a ni a, direct-a multiplyed by 25 equals DN, chu chu 1′′*25=DN25, 2′′*25=50, 4′′*25=DN100, etc. Dik tak chuan a hrang hrang a awm a, chu chu 3′′*25=75 Rounding hi DN80 a ni a, inches thenkhat chu semicolon emaw decimal point emaw nei a awm bawk 1/2′′, 3/4′′, 1-1/4′′, 1-1/2′′, 2-1/2′′, 3-1/ 2′′ leh a dangte ang chi, hengte hi chutiang chuan chhut theih a ni lo va, mahse chhut dan chu a tlangpuiin a inang vek a, a bul berah chuan a value tarlan chu:
1/2′′=DN15 a ni
3/4′′=DN20 a ni
1-1/4′′=DN32 a ni
1-1/2′′=DN40 a ni
2′′=DN50 a ni
2-1/2′′=DN65 a ni
3′′=DN80 a ni
Post hun chhung: Feb-03-2023
