BS4568
The British advanced technology, strict implementation of the BS4568-1970 standard, in line with national fire safety requirements.
Size(mm) | Outer Diameter | Thinkness (mm) | Thread Length(mm) | Weight(g/m) |
Min | Max | Min | Max | Min | Max |
16mm | 15.7mm | 16.0mm | 1.4±0.15 | 11.5mm | 13.5mm | 452g/m | 531g/m |
20mm | 19.7mm | 20.0mm | 1.6±0.15 | 13.0mm | 15.0mm | 682g/m | 862g/m |
25mm | 24.6mm | 25.0mm | 1.6±0.15 | 16.0mm | 18.0mm | 860g/m | 1095g/m |
32mm | 21.6mm | 32.0mm | 1.6±0.15 | 18.0mm | 20.0mm | 1133g/m | 1432g/m |
40mm | 39.5mm | 40.0mm | 1.6±0.15 | 19.0mm | 22.0mm | 1.36g/m | 1.52g/m |
50mm | 49.5mm | 50.0mm | 1.6±0.15 | 19.0mm | 22.0mm | 1.71g/m | 1.91g/m |
NOTE: All product length is 4 meters, or customized according to your requirements.
1. Class 4 pipe for the hot dip galvanized, inside and outside the re-grade anti-corrosion, warranty period more than 30 years.
2. Within the weld does not exceed 0.3mm.
3. Zinc coating thickness of 45μm.
4. This product can replace the gas pipes for underground water, air defense projects of line protection
