Gas Pipework
Pipe Protection
Regulations
Gas Supply
Safety Devices and Controls
Pipework
Ventilation
Unsafe Situations
Commissioning
Gas Performance
Gas Pipework
Chimney and Flue
Combustion
Boilers
Support and Insulation
- 25mm - min extension of any protection applied beyond the surface of corrosive material
- 40mm - min depth below concrete slabs with pedastrian traffic
| Maximum Interval Between Pipe Supports |
| Material |
Size mm |
Vertical m |
Horizontal m |
| Mild steel |
up to DN 15 |
2.5 |
2.0 |
| DN 20 |
3.0 |
2.5 |
| DN 25 |
3.0 |
2.5 |
| Copper tube |
up to 15 |
2.0 |
1.5 |
| 22 |
2.5 |
2.0 |
| 28 |
2.5 |
2.0 |
| Corrugated stainless steel |
DN 10, 12, 15, 22, 28 |
0.6 |
0.5 |
