Polymer Concrete Manhole Covers, Gratings & Frames (Sans1882):
· Has no metal value ( cannot be stolen and sold for scrap)
· Up to 60% cheaper than Cast iron Manhole Covers, Gratings & Frames
Polymer Concrete Manhole Covers, Gratings & Frames have been sold
in South Africa since 1992 and have performed excellently in all their
· Polymer Concrete Manhole Covers are 6 times stronger ordinary
concrete. The SABS has published SANS 1882 in 2003 and confirms that
Polymer Concrete Manhole Covers & Frames can withstand a point load
of up to 13500Kn and
· Easier handling, less weight.
can be manufactured to very close tolerances e.g..110mm u PVC
pipe is made to an outside diameter of 110mm + 0,3 mm – 0,0
mm .This allows joints to be made by both the solvent
weld method and by rubber ring seals.
The are made to manufactured accepted standards.
pipes and fittings do not corrode and are totally unaffected
by acid water ,acid soils and electrolytic corrosion from
any source. In this respect they outclass any other pipe
material including stainless steel..
pipes have extremely smooth bores. Jointing system are made to
fine tolerances reducing...turbulence to a minimum. Cavitation
is also minimize particular by our tapered reducers and bends.
Plastics pipes are not susceptible to attack from rodents or bacteria.
pipes are lightweight and easy to install. Correct installation
will result in service for the needs of many generations .The
very nature of plastic piping temps one to discard essential
principles of pipe laying. Plastics pipes should be handled with
care and not ''thrown'' to the ground. The basic principles
applicable to the laying of any pipe material must be applied to
plastic pipes as well.(refer to the SANS 1200specificain)