Manhole cover with four covers

Product code: NHG-16

This product is produced according to ISO9001-2015 and BS EN124 standards.

Product details

With load bearing capacity of 40 tons, 6- cover

Dimensions (length×width×height):

- Inside dimensions: 1500x750x120 mm.

- Outside dimensions :1660x950x120mm


·        It is rectangular with hinges.

·        The opening of the cover is 105º.

·         Safe opening position: at 90º.

·        Lifting power < 300N

·        The wings are designed in order

Frame :

• Cast seamless without any mechanical processing.

• With hook straps for extra convenience in installation construction.

The outside border is ribbed and slotted, in order to optimise its hold in the cement mortar and facilitate the insertion of the anchoring bolts

Safe Lock:

• special lock

• horizontal lock, special key.

The product is made of ductile iron according to European EN -124 standards.
The surface is painted with bitumen and designed with anti-slip class.

The products have hinges and anti-theft screws.

The European standard specifies the technical requirements for designing and testing methods to the manholes cover and grating one. They are used in vehicles and pedestrian zones. Depending on the loading design and the place of the installation, they are divided into six classes such as A, B, C, D, E and F.

-Group 1: Class A, loading capacity >= 15Kn ~ 1,5 tons. 

Areas for only pedestrians and bicycles users.

-Group 2: Class B, loading capacity >= 125Kn ~ 12,5 tons. 

Footways, parking or similar areas.

-Group 3: Class C, loading capacity >= 250Kn ~ 25 tons. 

The edge of the combinative area of vehicle road and the pavement.

-Group 4: Class D, load capacity >= 400Kn ~ 40 tons.  Vehicle area and urban arterial road.

-Group 5: Class E, loading capacity >= 600Kn ~ 60 tons. Shipping ports and parking apron areas.

-Group 6: Class F, loading capacity >= 900Kn ~ 90 tons.It is used for areas which have the biggest loading in the airline.


Material: Ductile iron

Surface Treatment: The products are processed dry and clean of dust, can be painted at the request.