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COMPOSITE MANHOLE COVER DESCRIPTION: 

ANTI-THEFT  
Non-recycle,naturally useless to another party;the lock hole can be made with a self locking flange.

INDESTRUCTIBLE 
Monolithic construction that will not crack or delaminate,with minimal deflection,rapid and total deflection recovery with no permanent se (independently tested). The surface has a special anti-slip deep tread pattern that is highly resistant to wear (independently tested).

It has the strength of steel,with better elasticity and tenacity,will not break into pieces under stress.Low friction coefficient between inner and outer walls

OPERATIONALLY SUPERIOR 
Cover,seal and frame are resistant to salt,sand ,acids,alkali,and other hazards encountered in the street environment.They will not chip,rock,bounce or spin out.The lustrous surface and sliding surface helps self-cleaning.No ugly rust or stains

INCRIDIBLY STRONG 
Patented structure is incredibly strong.Exceeds all regulatory requirements,including DOT H2O requirements (independently tested) Will withstand loading of more than 89,600lbs.

The manhole cover is made of a composite material;It has a patented structure that has unprecedented load carrying abilities,skid resistance,water tightness or load carrying properties

 

 

Immersion period (days)

TEST SOL.

1

7

21

56

84

Polyester PC

H2O

No change

No change

Marked
Aureole in  FS
-3mm-

Marked
Aureole in  FS
-3mm-

Marked
Aureole in  FS
-5mm-

H2SO4

No change

No change

Marked
Aureole in  FS
 -2mm-

Marked
Aureole in  FS
 -2mm-

Marked
Aureole in  FS
 -4mm-

NaCl

No change

No change

Marked
Aureole in  FS
 -1mm-

Marked
Aureole in  FS
-2mm-

Fair Whitening Slight
Aureole in FS


COMPOSITE MANHOLE COVER ADVANTAGE:

Light weight and convenient.
The weight is 1/3 lighter than cast iron ones so that it is convenient to transport, install, rush repair; construct easily and reduce working intensity.

Weather resistance.

The material is stable and the production of the products is scientifically so that the products can bear -50℃~+150℃.

Low noise.

As the products are molding pressed under high temperature, gap between frame and cover is small. Moreover, when cars roll over the manhole covers, the noise is low.

Easy installation.

The covers makes use of composite materials greatly reduce the weight of components, thus reducing the weight of the support structure, installation does not require use of lifting equipment, which saves and convenient.

Corrosion-resistance.

According to rhe test of the National Researvh & Analysis the Center of Chemical Building Materials,the products is corrosion-resistant and has a 3 level capability of ageing resistance. Thus it had longer service.

Practical economy.
Composite material covers is an one-time investment with low cost. More than two decades long life with no maitenance, The overall economic efficiency is much better than using carbon steel.