Minimum Thickness | |
FBE Coating | Minimum Thickness of Normal(n)Coating ,in μm |
Internal | 350 |
Eternal | 350 + 500 |
Over DN250 to Below DN500 | 2.2 |
From DN500 to Below DN800 | 2.5 |
From DN800 | 3 |
The minimum coating thickness shall be 0.7mm greater (reinforced(v)type)where coatings will be subjected to particularly high mechanical stress. | |
Along any 1m length of pipe,the coating thickness maybe up to 10% less than the minimum required,provded the thinner area does not cover more than 5cm2 |
Source: http://www.derbosteel.com/8-1-2-inch-outer-3lpe-coating-with-inner-fbe-coating-seamless-pipe.html
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