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Air Conditioning

Chilled & Condensor Water Piping

Water & Sewerage Treatment

Void Formers

Boiler Flues

Tunnel Ventilation

Culvert Pipe

Column Formers / Case Liners

Dust Collection / Pneumatic Conveying

Gas Cowls

Round Ducting

Oval Ducting

Round Spiral Welded

Gallery

Roladuct galvanized culvert pipe is manufactured in a range of sizes from 203mm diameter to 2438mm and in lengths to suit your individual needs. The 4 ply lockseam adds strength and rigidity to a versatile pipe with many uses on the farm or mining and general idustrial applications.

This table summarises the calculations and gives data equivalent to
those in Table 2.2 of Australian Standard 1762-1984

Material Thickness Sine Profile	Section Area mm²/mm	Second Moment of Area mm4/mm	Section Modulus mm³/mm	Radius of Gyration mm
1.6	2.32	142	8.4	7.83
2.0	2.90	179	10.4	7.86

Preferred Diameters & Thickness
Metric mm	Thickness mm	Area m2	Mass kg/m	Min Cover m
203	1.6	0.031	10	0.6
305	1.6	0.072	15	0.6
381	1.6	0.112	19	0.6
457	1.6	0.161	23	0.6
610	1.6	0.290	30	0.6
762	1.6	0.452	38	0.6
914	1.6	0.652	45	0.6
1069	1.6	0.893	53	0.6
1219	1.6	1.161	60	0.6
1524	1.6	1.817	76	0.6
1829	1.6	2.619	92	0.6
2133	2.0	3.561	140	0.6
2438	2.0	4.655	160	0.6

Fittings as Required

Installation Procedure

Culvert should be laid on a firm, well compacted granular bed 100mm deep in a trench 500mm wider than the pipe diameter.

Back fill with well compacted selected material passing 75mm screen in 150mm deep layers. Continue restricted back fill until minimum cover then bulk earthwork to final level.