• Manhole Cover Cast Iron D400 600mm for Sewerage System 1
  • Manhole Cover Cast Iron D400 600mm for Sewerage System 2
Manhole Cover Cast Iron D400 600mm for Sewerage

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

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. 

Q:Install the shaft to install a few gaskets is appropriate?
As the frame five depending on the length, five links on the left side of the 68mm length of one and two on the right side, the length of the 73mm five on the left side of the right is not installed, install a washer, the thickness is the same as long as you can buy time, usually have three washers.
Q:When do flat washers use GB95 when using GB97.1?
National standard GB95 applies to the performance level to 6.8, product grade C grade of the six head bolts and screws; as well as the performance level to level 6, the product grade is C grade of the nut, the surface of the hardened screwGB97.1 is suitable for six head bolts and screws with grade 8.8/10.9, grade A/B, grade 8/10, grade six, with a grade of A/B, and a self - tightening screw for surface hardening
Q:304 and 201 stainless steel spring washers that soft? Easier to move
304 relatively softOur company can produce. Kazakhstan
Q:How to remove mildew on the rubber washer
Ask is there with the rubber pad, generally, with boiling water boil can, if it involves food above recommendations or not, because you may be the cushion glue for food, not moldy food because silicone rubber is used, a number of years, generally with the first half of the year, the reason is because of the high temperature and long time, from the original into toxic non-toxic,
Q:Do not use self tapping screws
Self tapping screws are needed to use the gasket.A 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:What is the difference between gaskets and seals?
The washer is divided into: -C, flat washer washer -A and grade C, grade -C large washers, washer, flat washer, flat washer, chamfered - - a grade steel structure with high strength washer, spherical washer, taper washers, square taper washers, steel I-beam, square taper washers standard type spring washers, spring washers, light heavy spring washers, lock washers internal teeth serrated lock washers, inner and outer teeth lock washers, serrated lock washers, single ear washers, ears washers, external tab washers, round nuts with washers.
Q:How to use washer, gasket, o-ring "
Spring washer, "casing gasket" and "Liner O-ring", in fact should also be our daily used to seal washer, gasket, O-ring
Q:Gasket 300HV relative to what material?
Gasket 300HV relative to the usual selection of 45, 50, 60, 70 steel or 65Mn steel.
Q:When is the gasket (flat pad, spring pad)
Split washer (spring washer manufacturers generally will call washer "WASER") flat washer flat washer flat washer is generally used in 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 bad press. The basic function of the spring of the spring washer is to tighten the nut after the nut to a force, increasing the friction between the nut and bolt! Materials for the 65Mn (spring steel), heat treatment hardness of HRC44 ~ 51HRC, through the surface oxidation treatment. Hua, washers, meson is the same Dongdong, the name is different
Q:What's the meaning of the "200HV" of the gasket material? Is that the hardness level? What materials are usually chosen? Know predecessors please advice, younger brother is not very grateful!!!
Surface Vivtorinox hardness, general requirements not less than the number of commonly used non-ferrous metals, such as bronze, tin bronze, etc.

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