FRP Manhole Cover DIN Standard (unit: mm)
Flange Nominal Size DN |
Working Pressure bar |
Cover Diameter D |
Bolt Circle Diameter C |
No. of Bolt Hole Size n x d2 |
Flange ID d |
Cover |
Cover Thickness t |
Cover Height m |
DN500 | 2.5 | 645 | 600 | 20 x 18 | DN530 | 15 | 6 | 80 |
DN600 | 2.5 | 780 | 725 | 20 x 18 | DN640 | 25 | 6 | 80 |
DN600 | 6 | 780 | 725 | 20 x 26 | DN640 | 52 | 8 | 80 |
DN800 | 2.5 | 1015 | 950 | 24 x 18 | DN840 | 30 | 6 | 80 |
DN800 | 6 | 1015 | 950 | 24 x 33 | DN840 | 60 | 8 | 80 |