Nominal Size Outside Diameter (mm) Wall Thickness (mm)
JIS K6741
Class VP (AW)
Inch mm mm Min Max Min Max
1/2″ 16 22 21.8 22.2 22.2 22.2
3/4″ 20 26 25.8 26.2 2.7 3.3
1″ 25 32 31.8 32.2 3.1 3.9




Nominal Size Outside Diameter
(mm)
Wall Thickness (mm)
BS 3506 BS 3505
Class O Class B Class C Class D Class E Class 6 Class 7
Non Pressure PN 6 PN 9 PN 12 PN 15
Inch mm Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max
1/2″ 15 21.2 21.5 1.7 2.1 3.7 4.3 3.7 4.3
3/4″ 20 26.6 26.9 1.9 2.5 3.9 4.5 3.9 4.5
1″ 25 33.4 33.7 2.2 2.7 4.5 5.2 4.5 5.2
1-1/4″ 32 42.1 42.4 1.5 1.8 2.2 2.7 2.7 3.2 4.8 5.5 4.8 5.5
1-1/2″ 40 48.1 48.4 1.5 1.8 2.5 3.0 3.1 3.7 5.1 5.9 5.1 5.9
2″ 50 60.2 60.5 1.5 1.8 2.5 3.0 3.1 3.7 3.9 4.5 5.5 6.3 5.5 6.3
3″ 80 88.7 89.1 1.5 1.8 2.9 3.4 3.5 4.1 4.6 5.3 5.7 6.6
4″ 100 114.1 114.5 1.8 3.0 3.4 4.0 4.5 5.2 6.0 6.9 7.3 8.4
6″ 155 168.0 168.5 2.5 3.0 4.5 5.2 6.6 7.6 8.8 10.2 10.8 12.5
8″ 200 218.8 219.4 2.8 3.0 5.3 6.1 7.8 9.0 10.3 11.9 12.6 14.5
10″ 250 272.6 273.4 6.6 7.6 9.7 11.2 12.8 14.8 15.7 18.1
12″ 300 323.4 324.3 7.8 9.0 11.5 13.3 15.2 17.7 18.7 21.6




Specification of Sewage/Drainage Non-Pressure uPVC Pipe

Nominal Size
5.7/5.8 Meter
Outside Diameter
(mm)
Wall Thickness (mm)
B BD
Inch mm min max min max min max min max
1-1/4″ 32 36.1 36.4 1.5 2.0 3.0 3.5
1-1/2″ 40 42.7 43.0 1.5 2.4 3.0 3.5
2″ 50 55.7 56.0 1.5 2.4 3.0 3.5
3″ 82 82.3 82.6 1.5 2.4 3.0 3.5 3.0 3.5
4″ 110 110.0 110.3 1.5 2.5 3.2 3.7 3.1 3.6
6″ 160 160.0 160.3 2.3 2.5 3.2 3.7 4.0 4.5
8″ 200 200.0 200.4 2.8 3.8 4.5 4.9 4.8 5.5
10″ 250 250.0 250.4 3.0 3.8 5.6 6.1 6.1 7.0
12″ 315 315.0 315.4 3.0 3.8 6.2 7.0 7.6 8.6

* B - Use above ground buildings
* BD – Use above ground & underground building



Nominal Size Outside Diameter (mm) Wall Thickness (mm)
Inch mm Min Max Min Max
4” 107 107.0 108.0 2.5 3.0