DEDRA 400 range - Concave gratings - D400 class
Technical design
| 600x600 | 350x350 | 127 | 60.77 | 28.7 | 9.6 | 6 | EDDE35DFX15 |
| 600x600 | 400x400 | 127 | 56.23 | 29 | 9,6 | 6 | EDDE40KFX11 |
| 600x600 | 350x350 | 127 | 61.69 | 29 | 9,6 | 6 | EDDE35KFX11 |
| 600x600 | 400x400 | 127 | 55.3 | 28.7 | 9.6 | 6 | EDDE40DFX15 |
Features
Material and coating:
-
Grating and frame in Ductile Iron EN GJS 400-15: water base
Field of application:
-
D400 class (Group 4) according to standard EN124-2, carriageways of roads, hard shoulders and parking areas for all types of road vehicles.
Warning: in accordance with standard EN124-2015, D400 concave gratings are for parking areas only.
Main characteristics:
-
Protected hinged grating by spring bars.
-
Anti-skid surface designed for optimal absorption.
| AxB | OxO | Mudpan compatible | PMR |
|---|---|---|---|
| mm | mm | ||
| 600x600 | 400x400 | ||
| 600x600 | Ø350 | X | |
| 600x600 | 400x400 | X | |
| 600x600 | Ø350 | X | X |
Warning: In accordance with standard EN124-2015, D400 concave gratings are for parking areas only.
Documents
An innovating conception ensuring the stability of the cover or the grating in its frame was developed for the PARXESS manhole covers and DEDRA 400 gratings ranges.
The principle takes back, on the one hand the used concept for the AKSESS range (3 points with oblique seatings ensuring the stability during the vertical solicitations.), to which others seatings are added, also oblique, but in another plan, enabling to obtain a good stability during the horizontal solicitations. (Passage of vehicles.)
This seatings system enables to ensure a perfect stability of the cover or the grating in its frame at the hands of engendered constraints by the passage of vehicles and thus to guarantee the silence of these products in service.
This also enables to offer a good durability of the manhole covers and gully grates by removing all movements of the cover or the grating in its frame, frequent cause of premature degradation.
The DEDRA 400 gratings use the principle of stability of PARXESS type (C250), dimensioned in relation with the constraint level of the D400 class.
