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 |