FRP Manhole Cover-Topsun Pipelines（Shanghai）Co., Ltd.

Global Pipeline System Solution Provider

FRP Manhole Cover

Manhole covers may also be made from glass-reinforced plastic or other composite material (especially in Europe, or where cover theft is of concern).

Classification:

FRP Manhole Cover

Key words:

FRP Manhole Cover

manhole

Message

Product Description

Manhole covers may also be made from glass-reinforced plastic or other composite material (especially in Europe, or where cover theft is of concern). Because of law restricting acceptable manual handling weights, Europe has seen a move towards lighter weight composite manhole cover materials, which also have the benefits of greater slip resistance and electrical insulating properties.

Fibre-reinforced plastic (FRP; also called fiber-reinforced polymer, or fiber-reinforced plastic) is a composite material made of a polymer matrix reinforced with fibres. The fibres are usually glass (in fibreglass), carbon (in carbon fiber reinforced polymer), aramid, or basalt. Rarely, other fibres such as paper, wood, or asbestos have been used. The polymer is usually an epoxy, vinyl ester, or polyester thermosetting plastic, though phenol formaldehyde resins are still in use.

FRP manhole cover is a new type of manhole cover developed to solve the defects of steel and iron manhole covers that are easy to rust and lose, too heavy, and easy to brittle, and to improve their use functions and economic and social benefits.

1 Light weight, the weight of the glass steel manhole cover is only 1/4 of the iron cover, the installation and use of the project are light and flexible.

2 Good self-locking. The unique constraining structure of the glass fiber reinforced plastic round manhole cover and the well seat has a self-locking function to prevent the manhole cover from jumping off the well seat after the car passes by.

3 High strength, the tensile strength of glass fiber reinforced plastic material is equivalent to that of Q235 steel, and the compressive strength is more than twice that of C30X. Its impact resistance, vibration, fatigue, and fracture resistance are better than steel, iron and other materials. It is used as a load-bearing structure for the well cover. Strength and safety conditions are easier to meet than iron manhole covers.

4 Anti-theft and loss, FRP products have no waste recycling value. Used as a manhole cover can avoid the hidden danger of steel manhole covers often being stolen and sold as scraps, thereby preventing traffic accidents caused by man, car falling or stuck in the well due to theft and loss of manhole covers, and reducing owners’ Liability for economic losses and accidents.

5 Corrosion resistance, glass fiber reinforced plastic material is naturally corrosion resistant. It is used as a manhole cover for acid, alkali, salt, sewage and other corrosive medium environments. It has technical and economic competitive advantages

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