What is the thickness of RCC Hume Pipe according to various sizes

Answer 1

There are various classes of hume pipes such as NP 1, NP 2, NP3, NP4, etc. Pipe thickness varies with each type. Following is the list of pipe thickness for various diameter for NP 4 Class pipe.

Internal       Barrel
Diameter       Thickness
60               25
100              25
150              25
200              30
225              30
250              30
300              40
350              75
400              75
450              75
500              75
600              85
700              85
800              95
900             100
1000            115
1100            115
1200            120
1400            135
1600            140
1800            150
2000            170
2200            185
2400            200
2600            215