Plastic channel (PE-HD and PP) Midi black - Class A15 - polypropylene grating - Marshalls

Plastic channel (PE-HD and PP) Midi black - Class A15 - polypropylene grating - Marshalls

MIDI: basic scale for private use

• Application: terraces + walking and cycling paths
• Load class: A15

Properties

• The channels are made of lightweight plastic material (PE-HD and PP) but with a long service life
• The ability to withstand low temperatures, chemicals, salts and acids
• Grids in different materials

Laid

Excavation design

The depth of the excavation depends on the type and size of the channel chosen, plus the height of the concrete layer on the bottom. At this stage, it is also necessary to consider the possible passage of the evacuation pipes vertically and / or horizontally, and the presence of a waste collection bin. The gutter should be constructed from the lowest point or drain.

Concrete base

A layer of concrete should be applied to the laying surface, taking into account any slope for water drainage. The concrete that will be used for the base and shoulders of the gutter should have S4 flow properties to allow all voids outside the gutter to be filled. For this reason, gravel with a maximum diameter of 15 mm should be used. Keep in mind that these gutters are not self-supporting, but become so after proper placement and pouring of concrete.

Channel installation

Always install the channels from the point of water discharge (downstream), connecting the drain to the sewer or, if necessary, to the oil separator for the treatment of the first rain. The connection plug must be placed on the edge of the channel and the channels must be installed from downstream to upstream, using the joints at the edges of the channels. Then, the upstream channel is cut to size to achieve the desired length. Then lay out the necessary landfills, install the anchor profiles on the cast iron profile (if necessary) and fill the shoulder of the gutter to the maximum level with concrete. During this phase, it is extremely important to place the grid in front of the concrete filling to avoid possible damage due to the pressure exerted by the concrete. Always protect the grids with a film to avoid cleaning after pouring the concrete. For better sealing, it is also possible to use a bitumen-based sealant when connecting a gutter to another gutter.

Final coating

When applying the final coating, ensure that the final coating is between 3 and 5 mm above the top edge of the channel or the top surface of the grate. Then remove the protective film and attach the gratings to the channel.