Manhole Cover with Square Base Made in China

Ref Price:
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1000 m.t.
Supply Capability:
100000 m.t./month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Item specifice:

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

Product Description:

1.Ductile Iron Manhole Cover Description :
A manhole cover is a removable plate forming the lid over the opening of a manhole, to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.
A manhole cover sits on metal base, with a smaller inset rim which fits the cover. The base and cover are sometimes called "castings", because they are usually made by a casting process, typically sand-casting techniques.
2.Main Features of the Ductile Iron Manhole Cover:
Safety options
There is no metal contain, directly reducing potential accident or further maintenance costs caused by thieves. Anti-slip surface offer a safe road condition even in extreme weather.
Light weight
Compared with cast iron manhole cover, FRP manhole cover is 30% lighter.
Light weight allows more loading per vehicle, more convenient transportation and economical savings.
Allows a safer working condition, which single workers is enough for installation without risk of injury.
Long service life
Strong resistance of acid, alkali, weathering, anti corrosion of water, dust, manhole covers used for gas are well sealed which prevent poisonous gas leaking.
Temperature tolerance is at the range of -40°C-200°C.
Manholes allow access to underground pipes, cables, meters and facilities.
BS EN124 Standard:
A15: Area which can only be used by pedestrians and pedal cyclists.
B125: Footways, pedestrian areas and comparable parks or car parking decks.
C250: For gully tops installed in the area of curbside channels of roads.
D400: Carriage ways of roads(including pedestrian streets), hard shoulder and parking areas, for all types of road vehicles.
E600: Areas of imposing high wheel loads, e.g. dock and aircraft pavements
3.Manhole Cover Images:

Manhole Cover with Square Base Made in China

Manhole Cover with Square Base Made in China

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) Material 
A) Ductile iron GGG50
B) Grey iron GG20 
3) Designs
A) EN124 Class B125 C250 D400 F 900, with different size and grammage, or as  customers' requirement.
B) as per customers' drawing or samples

4) Process
A) Molding boards
B) Hand Casting
5) Coating
A) black bitumen or epoxy .
B)Coating as per customer's requirement
6) Different accessories are available
7) Packing:
Wooden case or wood pallet, or as per customers' requirement
8)  Payment terms: T/T or L/C
5.FAQ:
Q. Odours are coming through where I have installed my manhole cover, why?
A. Your cover must be sealed and locked, or neoprene sealed, so you would require a T-Range Cover, or if you require a solid top, a selection of the PC range (e.g. PC2BG3, PC6CG3, not PC2BG) are suitable.

Q. I need access through my manhole cover on a regular basis, is this possible?
A. Yes, the majority of covers have built-in lifting keys, and for those that don’t we also supply lifting keys. However, the best way to obtain easy access is to have a bespoke, hinged manhole cover.

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What is the meaning of the gasket / gasket material bar 200HV?
Should be less than 200HV, which is gasket, should consider the tightness, high hardness of the seal is not good!
Q:Flat gasket with what material
Due to the standard for the 100HV, 140HV flat washers can be made of low carbon steel. General enterprises in the selection of materials, most of the materials used in Baosteel, easy to cold stamping. Here is a brief description of Baosteel standards.
Q:What is the reason why the rubber washer is small after use?
Rubber elastic loss (compression permanent deformation large), the rubber will lose the value of the work. If the dynamic load is the damping effect is poor!!! The specific design of rubber products can contact, contact Baidu private message!!
Q:How to remove mildew on the rubber washer
Solution:1, activated carbon with gauze wrapped and then put;2, orange or orange peel or lemon cut into small pieces, put into steam for a while;3, is not in line with the onion steamed but the effect is poor.
Q:how to Flat washer installation
Flat washers are used on both sides, are required to install.
Q:When do flat washers use GB95 when using GB97.1?
Flat washers are usually thin pieces of various shapes, used to reduce friction, prevent leakage, isolation, to prevent loose or disperse pressure. Such components are used in many materials and structures to perform similar functions. Due to the limitation of the material and the process of the threaded fastener, the supporting surface of the bolt and the like is not large, so that the surface of the connecting piece is protected by reducing the compressive stress of the bearing surface.
Q:Would like to know the role of flat washer?
to Increase the stability factor to make it more stable
Q:When is the gasket (flat pad, spring pad)
A washer to prevent loosening of bolts. That is, elastic washer, anti loose washer works very simple. It consists of two washers. The outside is embossed with a radial surface, while the inner oblique tooth surface. When assembled, the medial oblique tooth surface relative to the outer radial surface and both ends of the contact surface relief into the occlusal state when the connectors are vibration, and the trend of bolts loosening, only allow two washers inside oblique tooth relative dislocation, resulting in uplift of tension, so as to achieve the 100% locking.
Q:Nominal diameter 12 washers, outside diameter?
flat washer is usually thin pieces, with different shapes are used to reduce friction, prevent leakage, isolation, to prevent loosening or dispersed pressure.Flat washer is mainly used to decrease the pressure, when some parts of the screw down the axial force is very big, easy to make the pressing dish washer, then can use material and improve the hardness to solve.
Q:how to use Motor washer
What gasket, rubber reduces vibration, metal reduces pressure

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range