Double Triangle Recessed Manhole Covers

Recessed D400 Manhole Cover Double Triangle Screw Locking For Residential Areas

Applications:

1. CLASSA15 - Areas to be used only by pedestrians and cyclists.
2. CLASSB125 - Pavements, pedestrianised areas and similar surfaces, parking areas and multistorey car parks.
3. CLASSC250 - For covering devices installed on roadsides and in gutters at the side of streets.
4. CLASSD400 - Road surfaces (including pedestrianised streets), hard shoulders and parking areas for vehicles of all kinds.
5. CLASSE600 - Areas used by heavy vehicles, such as surfaces in airport and dock facilities.
6. CLASSF900 - Areas subject to particularly heavy loading, for example surfaces in airports.

Description:

Triangular manhole cover is a removeable lid, which has a main special-function that can keep out unauthorized persons and materials falling into well. Triangular manhole covers have many perfect performance, high strength, good-looking appearance, easy to use, guard against theft, Acid and alkali resistance, corrosion resistance, wear resistance, rolling resistance, long service life etc.

Competitive Advantage:

1. No inherent scrap value thus reducing risk of theft.

2. Moderate weight and easy installation.

3. Can be used in -30℃ to 70 ℃degrees environment.

4. 30 years of service life.

5. Tested by national security agencies. Compressive, bending and impact resistant. Heat, cold, acid, etc.

6. Corrosion resistance, meet the needs of environmental protection, and reduce the exploitation of mining resources; beautify the city, classify the coloring, and enhance the taste of the city.