High Security Double Sealed Manhole Cover Anti Corrosion 600MM X 600MM

sealed	single or double
lock	available
Weight	cover:4.5kg ,Base:3.5kg, Set:8kg
Shape&Size	round/Square/rectangle or customized
Color Option	according to customer's requirement
Class(Loading capability)	A15 (3,400lb) to 900 (202,000lb) (BS EN 124)
Application	Be widely used in Inspection wells of power,telecommunication,mobile communication,fuel Sewer,gas pipes,gas station,chemical bases,real estates,urban arteries,high-grade highways,expressways, freight transport piers,airports,etc.
Surface Treatment	Painting, Powder coating, spraying, galvanization, chrome plating
type	Weight type: Applicable to urban roads and fast lanes. normal type: Applicable to Driveway Lightweight: Applicable to non-motor vehicle lanes, residential quarters, park squares, factories, schools, hospitals, green belts. Classification and coloring according to the requirements of each city project se

Standards and features:

1. high strength. Tensile strength σs≥420MPa, yield strength σs≥300MPa, same as low carbon steel, three times that of gray iron
2. Good plasticity. The elongation is as large as 7%, which is similar to high carbon steel, while the gray iron steel has an elongation of zero.

3. Good toughness. The impact value is similar to that of medium carbon steel, which is more than 10 times that of gray iron material.
4. Strong corrosion resistance. In the water spray corrosion test, the corrosion amount in 90 days is only one tenth of that of the steel pipe, which is one tenth of that of the gray iron pipe. The service life is twice that of gray cast iron, which is 5 times that of ordinary steel pipe.

Use

1. Anti-corrosion project, open ditch; It can be made according to customers requirements.

2. City water, drainage pipeline well; Heat supplied, gas well;

3. Electric power pipeline well; Post, telecommunication, communication pipeline well;

1. We are Alibaba trade assurance Gold Supplier,your payment will be protected 100%

2. We are a factory manufacturing ductile cast iron rain grate,cast iron manhole covers,ductile iron anti-theft covers,etc.,best production capability ,best quality control, Best Service .

3. 100% QC inspection Before Shippment.

4. Competitve price with best quality.

5. Response with in 24 hours for any question.

Xianxian Shuangxing Cast Co.,ltd is located in the historic city of Cangzhou ,is a professional manufacturer of Ductile/Nodular Cast Iron Production. Our Manufacturing aCapacity as follow:1.Ductile/Nodular Sandy Cast Iron Manhole Cover: Invisible Manhole CoverRoundness Manhole Rings and CoverSquare/Rectangle Manhole CoverWatertight and locking Manhole manholes etc.2.Ductile/Nodular Cast Iron Frame and Grate :Rainwater GratingDrain Trench Grating ,Tree Grating , Gully Grating ,Rectangular Trench Frames&Grates End wall Grating etc.3.Catch BasinsCurb&Cutter InletsType K GratingsIron TankMeter BoxCast Iron Grids etc.With more than 20 years' of manufacturing experience, advanced production equipment and strictly implement the ISO9001 international quality inspection system, wide products series and devotion to R&D, we are ready to be your partner Ductile Cast Iron products industry.