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BS31:1970 Conduit (Class 3 & Class 4)

Material : Steel

Surface Finish : Pre-galvanized & Hot dipped galvanized

Type : Class3 & Class4

ELECMAN® BS31 class 3 & class 4 conduit


ELECMAN® BS31 conduit is widely used in electrical systems in various buildings to protect cables and wires


Cat.#Nominal SizeOutside Diameter (mm)Wall thickness      (mm)Length   (m)Thread length (mm)
MinimumMaximumMinimumMaximum
BS31013/4"18.9019.051.65 ± 0.153.8113.514.3
BS31021"25.2525.401.65 ± 0.153.8116.717.5
BS31031-1/4"31.6031.751.65 ± 0.153.8118.319.1
BS31041-1/2"37.8038.001.85 ± 0.153.8119.120.6
BS31052"50.5050.802.05 ± 0.153.8119.120.6



·Pre galvanized(Class 3)and hot dipped galvanized(Class 4) are both available. 

·Threaded at both ends.

·Each length supplied with one coupler and one plastic thread protector cap.

·Available in 3/4"mm to 2"mm diameter and 3.81m length.

·Manufactured in accordance with BS31.