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References
More examples of applications can be found in the references: water management and transport constructions
Details
COVER TYPES
By shape:
- Rectangular – most common
- Other shapes, e.g. circular – consult our technical staff
- Manhole covers: DN 600 mm circular only
By design:
- Closed-edges covers consist of a moulded grating and double surfacing; edges are closed by a U beam frame; walk-over side has anti-slip finish of silicate sand suspended in resin
- Opened-edges covers use the same design, except not all sides are closed
- Circular manhole covers are made by pressing
By load:
- Walk-over covers (maximum load 250 kg/m2)
- Load-bearing covers of class A, B, C, D pursuant to CSN EN 124:
- A15 – load capacity up to 1.5 t – designed for areas that are used exclusively by pedestrians or cyclists
- B125 – load capacity up to 12.5 t – use: sidewalks, pedestrian zones, parking for cars
- C250 – load capacity up to 25 t – designed for car parking spaces, side roads, sidewalks and pedestrian zones on the streets
- D400 – load capacity up to 40 t – designed for lanes of roads, paved roads or parking areas, which are accessible to other than passenger cars
KEY FEATURES
- Low weight (5 x lighter than cast iron)
- Highly durable, resistant against corrosive environments
- Maintenance-free
- Not accepted at salvage yards (lower likelihood of theft)
- Electrically non-conductive
- Variable dimensions
COVER ACCESSORIES
- Frames
- Handles
- Tongue locks, padlocks
- Hinges
- Rubber seals
- Insulation
- Ventilation manholes
- Logos
- Pneumatic lifters
PREFAPLATE WALK-OVER COVERS WITH COMPOSITE FRAMES
| MAX LOAD [kg/m²] |
TYPE | ACCESSORIES | HEIGHT [mm] |
HEIGHT WITH FRAME [mm] |
MAX. APERTURE SIZE [mm] |
WEIGHT [kg/m²] |
|---|---|---|---|---|---|---|
| 250 | Prefaplate closed-edges cover | logo, ventilation, muffle lining, locks |
30 | 35 | 1,000 | 16.5 |
| Prefaplate opened-edges cover | 16.5 |
PREFAPLATE RECTANGULAR LOAD-BEARING COVERS WITH COMPOSITE FRAME
| MAX LOAD | TYPE | ACCESSORIES | HEIGHT [mm] |
HEIGHT WITH FRAME [mm] |
MAX. APERTURE SIZE IN LOAD-BEARING AXIS [mm] |
WEIGHT (kg/m²) |
|---|---|---|---|---|---|---|
| B | Prefaplate B 125 | frame, logo, locks, handles, ventilation, rubber seal |
54 | 60 | 500 | 33 |
| B | Prefaplate B 125 | 64 | 72 | 1,200 | 60 | |
| C | Prefaplate C 250 | 66 | 82 | 1,000 | 60 | |
| D | Prefaplate D 400 | 66 | 82 | 600 | 70 |
RECTANGULAR LOAD-BEARING COVERS – DIMENSIONS
| LOAD CLASS |
APERTURE SIZE [mm] |
|||||||
|---|---|---|---|---|---|---|---|---|
| B125 | 500/500 | 500/600 | 500/700 | 500/800 | 500/900 | 500/1,000 | 500/1,100 | 500/1,200 |
| C250 | ||||||||
| D400 | ||||||||
| B125 | 600/600 | 600/700 | 600/800 | 600/900 | 600/1,000 | 600/1,100 | 600/1,200 | |
| C250 | ||||||||
| D400 | ||||||||
| B125 | 700/700 | 700/800 | 700/900 | 700/1,000 | 700/1,100 | 700/1,200 | ||
| C250 | ||||||||
| B125 | 800/800 | 800/900 | 800/1,000 | 800/1,100 | 800/1,200 | |||
| C250 | ||||||||
| B125 | 900/900 | 900/1,000 | 900/1,100 | 900/1,200 | ||||
| C250 | ||||||||
| B125 | 1 000/1,000 | 1,000/1,100 | 1,000/1,200 | |||||
NOTE: The table lists standard sizes. Consult us for custom sizes.
PREFAPLATE DN 600 CIRCULAR MANHOLE COVERS WITH COMPOSITE FRAME
| LOAD CLASS |
TYPE | ACCESSORIES | COVER HEIGHT [mm] |
HEIGHT WITH FRAME [mm] |
APERTURE SIZE DN [mm] |
WEIGHT [kg/unit] |
|---|---|---|---|---|---|---|
| A | Prefaplate A 15 | logo, locks | 26 | 40 | 600 | 12 |
| B | Prefaplate B 125 | 26 | 40 | 600 | 22 | |
| C | Prefaplate C 250 | logo, ventilation, muffle lining, locks |
40 | 100 | 600 | 50 |
| D | Prefaplate D 400 | 40 | 100 | 600 | 50 |
PREFAPLATE DN 600 CIRCULAR MANHOLE COVERS INTO THE EXISTING FRAME OF BEG
| LOAD CLASS |
TYPE | ACCESSORIES | COVER HEIGHT [mm] |
HEIGHT WITH FRAME [mm] |
APERTURE SIZE DN [mm] |
WEIGHT [kg/unit] |
|---|---|---|---|---|---|---|
| D | Prefaplate D 400 with lock | logo, ventilation, muffle lining, locks |
40 | 160 | 600 | 25 |
| D | BEG R-S frame | 73 |
COVER MOUNTING OPTIONS
 Y profile frame for installation in concrete |
 Angle frame for installation in concrete, steel anchors |
 Angle frame for side mounting, mechanical anchors |
 2 x angle frame for side mounting, mechanical anchors |
 Angle frame for top mounting, dowels |
 Angle frame for top mounting with extra cement, dowels |
 Placing on composite beam |
EXAMPLES OF COMPOSITE COVERS
