Composite sewer manhole / technical access cover | hatch | Ø900mm | C250 | two-part cover | SMC | black

The cover is classified as C250 according to EN124. Covers of this class are used in kerbside, kerb, drainage, parking and similar areas where vehicle loads may occur but where D400 class is not required.

The smaller upper cover can simplify inspection, measurements or other maintenance work when it is not necessary to open the entire main Ø900mm access opening.

SMC composite is non-metallic and has electrically insulating properties. The material also helps reduce the accumulation of static electrical charge and the risk of electrostatic discharge.

The cover can be used in kerbside areas, kerb and drainage zones, car parks, industrial sites and other locations where loads correspond to the C250 class.

If the cover is installed on a main high-traffic carriageway or in a location where the project requires D400 or a higher load class, the C250 version is not suitable for that location.

The main cover and additional access cover incorporate sealing elements designed to reduce the penetration of water, gases, odours, oil or other liquids into the manhole interior.

The -60°C...+150°C range describes the temperature resistance of the SMC material used in moulded products. Operating conditions for the complete structure also depend on sealing elements, fixing and the installation location.

• C250 load class suitable for moderate vehicle loads.
• Additional access cover allows some maintenance work to be carried out without opening the entire main cover.
• Ø900mm main opening provides a large access area.
• SMC composite construction is corrosion-resistant and does not rust.
• Resistance to fuels, oils and chemicals makes it suitable for industrial and traffic areas.
• Sealing system helps protect the manhole interior against water and other liquids.
• Lockable bolts help protect against unwanted opening.
• Raised anti-slip surface improves grip.
• Electrically insulating material does not have the electrical conductivity typical of metal structures.

• Correctly prepared base required: C250 performance also depends on correct installation of the frame.
• Large construction dimensions: the outer frame dimension is 1020mm.
• The additional cover must be properly closed and secured before being exposed to vehicle loads.
• Not intended for areas where D400 or a higher load class is required.

A technical manhole is installed in a car park or kerbside area. Routine maintenance requires only limited access to the inside of the manhole, so the smaller upper cover can be removed. When full access is required, the main Ø900mm cover is opened. The C250 class allows the construction to be used in locations exposed to moderate vehicle loads.

C250 according to EN124.

In kerbside, kerb and drainage areas, car parks and other similar locations where loads correspond to the C250 class.

The CO dimension is Ø900mm.

The C dimension is 974mm.

It provides additional access to the manhole interior when removal of the entire main cover is not necessary.

The F dimension is 1020mm.

The overall construction height is 100mm.

SMC composite material.

The SMC composite structure does not rust like steel or cast iron.

Lockable bolts operated with a hex key are used.

The C250 load class is determined not only by the cover itself but also by the correctly installed frame and supporting base. The installation structure must reliably transfer vehicle loads to the surrounding base. Before installation, the CO, C, F and other structural dimensions must be checked, both the main and additional covers must be properly secured, and it must be confirmed that the C250 load class meets the requirements of the specific installation location.