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Gi Conduit Specifications:
Surface Treatment: Pre-galvanised or hot dipped galvanised
BS4568:1970/BS EN61386/IEC60423:1993
Size |
Outside Diameter (min/max) |
Wall Thickness (mm) |
Length of Full Thread (Min/Max) |
Length (m) |
20mm | 19.7/20.0 | 1.60/1.35 | 13/15 | 3.75 |
25mm |
24.6/25.0 | 1.60/1.35 | 16/18 | 3.75 |
32mm | 31.6/32.0 | 1.60/1.35 | 18/20 | 3.75 |
40mm | 39.6/40.0 | 1.80- | 18/21 | 3.75 |
50mm | 49.6/50.0 | 2.00- | 19/22 | 3.75 |
BS31:1940
Size |
Outside Diameter (min/max) |
Wall Thickness (mm) |
Length of Full Thread (Min/Max) |
Length (m) |
3/4'' | 19.75/19.05 | 1.60/1.35 | 13/15 | 3.75 |
1'' | 25.10/25.40 | 1.60/1.35 | 16/18 | 3.75 |
1-1/4'' | 31.50/31.80 | 1.60/1.35 | 18/20 | 3.75 |
1-1/2'' | 37.70/38.10 | 1.80- | 18/21 | 3.75 |
2'' | 50.46/50.80 | 2.00- | 19/22 | 3.75 |

Macrich Industry specializes in producing and exporting various metal casting such as melleable iron, ductile iron, gray iron, alloy iron with galvanised or black or BZP surface.
As a leading conduit fittings supplier in China, we are the first to export conduit fittings since 1981.
In 2018, we also produce scaffolding items, such as scaffolding pipes, props, planks, couplers with high quality and BS standard.