Manhole Cover Cast Iron D400 600mm for Sewerage

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1000 m.t.
Supply Capability:
200000 m.t./month

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Item specifice:

Material: Ductile Iron Standard: square Power Supply: AC Power
Surface Treatment: Zinc Plated

Product Description:

1.Cast Iron Manhole Cover Description :

Manhole covers are often made out of cast iron, concrete or a combination of the two. This makes them inexpensive, strong, and heavy, usually weighing more than 50 kilograms (110 lb). The weight helps to keep them in place when traffic passes over them, and makes it difficult for unauthorised people not having suitable tools to remove them.

2.Main Features of the Ductile Iron Manhole Cover:

·High endurance

·High Strength

·Pressure Resistence

·Anti-corrosion

·Anti-theft

·Good visual effect

3.Manhole Cover Images:

 Manhole Cover Cast Iron D400 600mm for Sewerage

Manhole Cover Cast Iron D400 600mm for Sewerage

4.Manhole Cover Specifications:

1) Production information
Manhole cover are manufactured for construction and public use. Manhole cover shall be smooth and free sand holes, blow holes, distortion or any other defects 

2) Process
A) Molding boards

B) Hand Casting 

3) Coating
A) black bitumen or epoxy .
B)Coating as per customer's requirement

4) Different accessories are available 

5) Packing:
Wooden case or wood pallet, or as per customers' requirement 

6)  Payment terms: T/T or L/C 

5.FAQ:

We have organized several common questions for our clientsmay help you sincerely

Q. Can I fit a square manhole cover into a round chamber?

A. Yes, there are a select few manhole covers which are square-to-round, meaning they will fit square or round chambers. 

Q. I have a heavy traffic manhole cover but it has been broken by a forklift, why?

A. Forklifts have solid wheels which apply pressure differently to standard pneumatics and therefore covers must be specially adapted to suit this.

Q. The project I’m working on requires a manhole cover with a quality finish, what’s available?

A. Naturally, galvanised steel of black polypropylene aren’t always ideal, and so we offer brass or stainless steel edging, as well as complete stainless steel covers.

However, the best way to obtain easy access is to have a bespoke, hinged manhole cover. 

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Q:How to use washer, gasket, o-ring "
Different purposes, the installation position and the corresponding flange are different, if this is how to choose, advantages and disadvantages, too much information
Q:Specific conditions for use of spring washers
Standard for use with spring washers? Should not. Spring washer main role is to prevent loose!
Q:how much Specification for washers
Conventional M3-M130, there is a "SP" large outer diameter M8-M36, in general, large diameter washers used for long hole or flange nut assembly
Q:How to remove mildew on the rubber washer
Method for removing mildew on rubber washer:Add one or two tablespoons white vinegar. Do not add detergentOrange or orange peel or lemon cut into small pieces, put into steam for a whileActivated carbon with gauze wrapped and then putBask in the shade or in the sunWash with soap or baking sodaDry with a desiccant, and then immediately get the sun outside the place to dry
Q:What is the reason why the rubber washer is small after use?
If you do not have any oil around the gasket, which may be used in the process of gasket compression deformation occurred!If there is oil to the present, it is likely that the oil things out of your rubber additives!
Q:Gasket 300HV relative to what material?
For the 200HV and 300HV level should choose 45, 50, 60, 70 steel or 65Mn steel, heat treatment can be quenched and tempered to reach the technical requirements of 200 ~ 300HV and 300 ~ 400HV
Q:How do you choose the appropriate gasket for bolt or screw connection?
Mainly depends on your needs, such as the bolt is M10, you have to choose the matching. A variety of information can be found from the hardware manual.
Q:What is the meaning of the gasket / gasket material bar 200HV?
Washer / gasket material bar indicates that 200HV is the material mechanical performance grade for steel 200HV.Example: standard series, nominal size d=8mm, performance grade 200HV, without surface treatment of flat washers: washers GB97.1 - 858 200HVA part between a connector and a nut. A flat metal ring is generally used to protect the surface of the connecting piece from the nut.
Q:Would like to know the role of flat washer?
Flat washer is generally used in the connecting piece is a soft texture, a hard brittle, its main role is to increase the contact area, pressure distribution, to prevent the soft texture of the crush.2 parts between the connecting piece and the nut. A flat metal ring is generally used to protect the surface of the connecting piece from the nut.3 flat pad is to increase the contact area, and to prevent the bolt and workpiece friction;The main function of the 4 flat washer is to protect the surface of the connector, to prevent the bolt nut tightening when the workpiece surface
Q:What is the difference between gaskets and seals?
The washer pad is connected between the nut pieces and parts; sealing ring, ring is formed by one or several parts of the cover, fixed in a ring or a washer bearing and another ring or gasket contact or metal ring is the flat form of the labyrinth of narrow gap.

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