The Ultimate Grid Cover for water taking channels under traffic.
Tough and durable, no chipping or cracking, no exposed reinforcing rusting away
Minimal visible steel and heavy. Does not get stolen.
Suitable for use under maneuvering truck wheels. No scuffing.

Designed to Customer's requirement:

• Span length,
• Width along trench and
• Expected maximum loading.

Sanral Median Grid for U- Channel DISCONTINUED

Although this is a SANRAL specification precast concrete grid, it is not a good product. When a vehicle wheel drives onto this Median Grid, it moves. The results are breakages and grids that are dangerously out of position. This is irrespective of which company manufactured the grids. More ...

Vanstone discontinued the mass manufacture of the Median Grids. To help cover large numbers of  breakages along the roads, Vanstone will keep a few in stock for spares.
Size: 370mm wide x 85mm deep x 600mm (module) long
Mass: 35kg each
Static test load (ultimate) across two ribs 60kN
Prod. no.: P4-8002

High specification reinforced concrete Grid. Two per channel
Concrete Strength 40MPa (ave 28d), Reinforcing: hot dipped galvanized
Size: 370mm wide x 135mm deep x 600mm (module) long
Mass: 58kg each
Test load (ultimate) across two ribs 150kN
Prod. no.: P4-8003

Applications: For limited vehicle crossing i.e. occasional traffic moving very slowly. If used as such the grid must be firmly bedded on the channel with strong cement mortar. Rocking movememnt must not be possible. It can carry a lot more than the Median Grid and has a much improved shape.

Contra-indications (Do not use): For heavy vehicles other than rarely and at crawl-speed; high frequency traffic; vehicles moving other than very slowly. Heavy vehicles manoeuvring with the possibility of wheel scuffing.

SANRAL specification reinforced concrete U-Channel.
Concrete Strength 40MPa (ave 28d)
Size: 370mm wide x 405mm deep x 1200mm long
Mass: 220kg per 1.2m length
Prod. no.: P4-8000

Theoretical Flow Data

Channel for underground services like cables, optic fibre, pipes, communication, gas and more.
Concrete Strength 30MPa, reinforced.
Load capacity: Single wheel load of 2 tons (static)

Channel:
External size: 700mm wide x 475mm high x 500mm long (need 2 per metre).
Internal size: 500mm wide x 400mm deep x 500mm long.
Mass: 153kg each.
Prod. no.: P4-7060/Ch

Lids:
Provided with lifting hole. Open with standard garden pick.
Size: 700mm x 250mm x 100mm thick.
To cover channel 700mm wide.
Length along channel: 250mm (need 4 per metre).
Mass: 44kg each.
Prod. no.: P4-7060/1

Click for dimensions and more pictures

Size: 900mm x 500mm x 80mm thick
Concrete: 30MPa
Reinforced
Mass: 44kg
Smooth concrete finish on top.

Suitable for Pedestrian and occasional LIGHT vehicles only.

Prod. no.: P4-7029

See also Down Channels >

See also Channel and Trench Covers