Manhole Cover with Square from China High Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 100000 m.t./month
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Item specifice
1.Ductile Iron Manhole Cover Description :
1.Advantages: Good compressive, bending and impact strenth,anti-corrosion, not rust, long service life(at least 30 years). The quality meets the same kinds cast ion manhole covers but the cost is 30% lower than. Contain no metal and no recovery value, anti-theft.
2.Applications: water supply and drainage, fire engineering, natural gas,electricity and telecommunications, street lamp and outdoor illuminations.
2.Main Features of the Ductile Iron Manhole Cover:
•High endurance
•High Strength
•Pressure Resistence
•Anti-corrosion
•Anti-theft
•Good visual effect
Applications:
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:
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
5.FAQ:
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.
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.
- Q:Why do some nuts and washers, and some nuts without washers
- If the diameter of the screw and the diameter of the fixed parts of the hole size difference is relatively large, if not washers, nuts and parts of the contact area is relatively small, it is necessary to increase the contact area of the gasket. In addition, the pressing oblong hole, also need to add washer. The same reason is to increase the contact area, making the connection more reliable.
- Q:Flat gasket with what material
- According to different purposes, there are low carbon steel Q235, 10, medium carbon steel 35,45, spring steel 65Mn, stainless steel A2, F1, etc..
- Q:When do flat washers use GB95 when using GB97.1?
- There is no difference in the application. See the tolerance, the high requirements of the use of GB97.1. in order to save money, and the application environment is not high, use GB95
- Q:What is the role of flat washers? There is a friend who can introduce
- 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:how to Flat washer installation
- Flat washers are used on both sides, are required to install.
- 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:How do you choose the appropriate gasket for bolt or screw connection?
- When the bolt is connected, the target of the washer is to disperse the material which is connected with the material, reduce the damage to the surface of the material to be connected when the bolt or the nut is reduced, or prevent the loosening of the bolt. When you choose the gasket can be the actual need to relax the use of spring washers, to protect the surface of the material to be connected, optional plain washers. The principle of choice is that the inner diameter of the washer is slightly larger than the outer diameter of the bolt. Screw connection, the use of slightly larger than the location of the largest screw flat washers can be.
- Q:How to use washer, gasket, o-ring "
- Three are used to enhance the sealing performance of the accessories, in general:Washer gasket, a uniform thickness of the ring, used in the bolt to enhance the connection between the fastening; gasket gasket, a variety of shapes, for a variety of occasions, enhance the tightness. In general, both are metallic and washer is included in the category of gasket.Liner and O-ring are commonly referred to as sealing ring, rubber material, shaped like a mini version of the buoy, but the wall thickness is larger and better elasticity, mainly used for instrument installation in Glen head.
- Q:I would like to ask the car transmission inside the thrust washer (thrust washer) is used to do ah?
- Figure 3 thrust washers, 4 needle bearings, thrust washers to prevent excessive wear of the main bearings, the usurper.
- Q:how much Specification for washers
- From 2.5~48, the form of GB/T854-1998, GB/T855-1998, GB/T856-1998
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Manhole Cover with Square from China High Quality
- 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
OKorder Financial Service
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