Page 359 - Mechanical Products Installation Handbook IH-1000M

ENGINEERING REFERENCE 351
Global Pipe Size Designations
Outside Diameter (OD)
(2 of 4)
IMPORTANT NOTE:
Nominal designations are used where the actual OD of the pipe matches the ANSI size. Otherwise both the nominal and actual OD are listed.
China sizes are listed as actual OD in mm. ** China sizes are tubing sizes.
JIS ANSI mm Inches
27,2mm 3/4 42,7mm 1-1/4 60,5mm 2
DN 80 3 – –
GB China mm
DN 20 DN 32 DN 50
India
IS 1239 IS3589
DN 20 – DN 32 – DN 50 –
DN 80
108mm** – –
21,7mm
1/2
DN 15
DN 15
–
34mm
1
DN 25
DN 25
–
48,6mm
1-1/2
DN 40
DN 40
–
–
2-1/2
–
–
–
76,3mm
–
76,1mm **
76,1mm
–
DN 80 –
–
–
–
–
–
DN 100 DN 100 – 133mm** – –
DN100 4
– – –5–––
–
–
–
–
–
139,8mm
–
139,7mm
139,7mm
–
–
–
–
–
–
– – 159mm –
165,2mm – – 165,1mm –
– 6 DN 150 – DN 150 –––––
–––––
–––––
–
–
–
–
193,7mm
216,3mm
–
–
–
–
–
8
DN 200
DN 200
DN 200
267,4mm
–
–
–
–
–
10
DN 250
DN 250
DN 250
318,5mm
–
–
–
–
–
12
–
–
–