Page 358 - Mechanical Products Installation Handbook IH-1000M

350 ENGINEERING REFERENCE
Global Pipe Size Designations (1 of 4)
GRINNELL Mechanical Products product data is utilized worldwide and all technical data is shown in both metric and imperial terms. The following chart shows a comparison between typical metric and IPS pipe sizes.
Nominal Size (DN)
Outside Diameter (OD)
Inches (Imperial)
mm (Metric)
mm (Specification Reference)
DIN mm
BS mm
ISO mm
1/2
15
21,3mm
DN 15
DN 15
DN 15
3/4 1-1/4 2
3
4
5
6
–
–
–
20 32 50
80
100
125
150
26,7mm 42,2mm 60,3mm
88,9mm
108mm China (& old DIN)
114,3mm 133mm China
139,7mm BS/ISO
141,3mm 159mm China
165,1mm JIS/BS
26,9mm 42,4mm DN 50
DN 80
DIN 133mm
DN 100 –
DN 125
– –
–
DN 150 –
–
–
DN 20 DN 32 DN 50
DN 80 ––
DN 20 DN 32 DN 50
1
25
33,4mm
33,7mm
DN 25
DN 25
1-1/2
40
48,3mm
DN 40
DN 40
DN 40
2-1/2
65
73,1mm
–
–
–
76,1mm BS/ISO
76,1mm
76,1mm
76,1mm
DN 80
3-1/2
90
101,6mm
–
–
–
–
127mm
127mm
–
–
–
–
152,4mm
152,4mm
–
–
–
168,3mm 203,2mm 203,2mm
254mm 254mm
304,8mm 304,8mm
DN 100 –
139,7mm
– –
165,1mm
– –
–
–
DN 101 –
139,7mm
– –
–
DN 150 –
–
–
–
175
193,7mm
–
–
–
8
200
216,3mm JIS
–
–
–
219,1mm
DN 200
DN 200
DN 200
10
250
267,4mm JIS
–
–
–
273mm
DN 250
DN 250
DN 250
12
300
318,5mm JIS
–
–
–
323,9mm
DN 300
DN 300
DN 300