FRP Manhole DIN Standard (unit: mm)
Flange Nominal Size DN |
Working Pressure bar |
Flange Diameter D |
Hub OD d5 |
Bolt Circle Diameter K |
No. of Bolt Hole Size n x d2 |
Flange ID DN-a1 |
Flange |
Neck Thickness t1 |
Stub Thickness t2 |
Stub ID DN-a2 |
Hub Fillet Radius r2 |
Pipe Inside Dia Fillet Radius r1 |
Stub Length L |
Weight (Kg) |
DN500 | 2.5 | 645 | 550 | 600 | 20 x 18 | DN530 | 15 | 10 | 6 | 478 | 10 | 8 | 200 | 6.56 |
DN600 | 2.5 | 780 | 666 | 725 | 20 x 18 | DN640 | 25 | 13 | 6 | 580 | 16 | 8 | 300 | 13.1 |
DN600 | 6 | 780 | 680 | 725 | 20 x 26 | DN640 | 52 | 20 | 8 | 580 | 16 | 8 | 300 | 25.04 |
DN800 | 2.5 | 1015 | 870 | 950 | 24 x 18 | DN840 | 30 | 15 | 6 | 780 | 16 | 8 | 300 | |
DN800 | 6 | 1015 | 890 | 950 | 24 x 33 | DN840 | 60 | 25 | 8 | 780 | 16 | 8 | 300 |