Customized 600mm Ductile Iron Manhole Cover with Frame

Product Description

What is ductile iron?
Ductile iron is also called spheroidal graphite iron/nodular castiron. It's a unique form of iron which prior to the metal casting process receives a treatment with magnesium to produce an exceptionally strong,impact resistant durable metal.
The benefit of ductile iron:
Ductile iron high strength to weight ratio allows for the production of light weight castings that offer what can amount to a 50% weight saving over traditional grey iron.

Class A 15 minimum Test 1.5 metric ton
Areas which can only be use by pedestrians and pedal cyclists.

Class B 125 minimum Test 12.5 metric ton
Footways, pedestrian areas and comparable areas, car parks or car parking decks.

Class C 250 minimum Test 25 metric ton
For gully tops installed in the area kerbside channels of roads which when measured from the kerb edge, extend a maximum of 0.5m into the carriageway and a maximum of 0.2m into the footway.

Class D 400 minimum Test 40 metric ton
Carriageway of roads (including pedestrian street), hard shoulders and parking areas, for all types of road vehicles.

Class E 600 minimum Test 60 metric ton
Areas imposing particularly high wheel loads, e.g. docks, aircraft pavements.

Class F 900 minimum Test 90 metric ton
Areas imposing particularly high wheel loads, e.g. Aircraft pavements.

The standard specifies that the designer is responsible for making the appropriate choice of class and where there is any doubt regarding the class to be used, a higher class should be selected.

Solid Cover Series	Ductile Iron
	Two Lifting Keyholes
	Cut-Corner Design (Regular corner covers are also available)
	Diamond raised top design

Double Sealed Series	Ductile Iron
	Double Sealed
	2 Lifting Key Holes
	Cut-Corner Design (Regular corner covers are also available)
	Some types come with GRP sealing plate.

Double Triangular Series	Ductile Iron
	Double Triangular
	Square Plate raised top design
	Special inscription or different identification is available

Round Cover Series	Ductile Iron
	Double Triangular
	Square Plate raised top design
	Special inscription or different identification is available

Round frames, Square frames and Octagonal frames are available.
Some types come with GRP sealing plate.

Shanxi Arfanti Mechanical And Elequipment Co., Ltd. is an professional manufacturer for manhole covers, gully gratings, drain covers, trench covers, surface boxes, planting covers etc. Products quality comply with BS EN124 standard. We have grown fast ever since rely on our sophoscated equipments, rich experience workers, and strict management.