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PARSON MANHOLE INSERT
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| DESCRIPTION:
PARSON MANHOLE INSERTS are manufactured from ultra high density, high molecular weight polyethylene and have been proven effective in reducing or preventing surface water inflow to the collection system, through the manhole lid. Operating, utility and maintenance costs
for plant equipment and pumps are minimized, due to reduced flow
during heavy rainfall. PARSON MANHOLE INSERTS are a practical solution
to expensive plant expansions, new construction moratoriums or high
sewage treatment costs. |
ADVANTAGES of PARSON MANHOLE INSERTS:
- NO VALVE method
of ventilation available
- Single or double
valve ventilation system available
- NO corrosive parts
- Easy installation
and removal
- Requires no maintenance
- Dramatically reduce
sewage treatment costs
- Keeps grit, sand,
salt, chemical spills,
foreign objects, road oils, etc. from
entering the collection systems
- Cost-effective
alternative to replacing existing
manhole covers with "water-tight" covers
PHYSICAL
PROPERTIES:
PARSON MANHOLE INSERTS are manufactured from High Density
Polyethylene, meeting the requirements of ASTM D-1248, Class A,
Category 5, with a finish thickness of 1/8”. Ventilation is
achieved by either the thru-bore, single or double valve methods. A corrosion resistant 1" heavy
weight polypropylene strap
is factory installed to make removal of the unit
a simple, one person operation. A factory installed closed-cell neoprene
or cross-linked polyethylene gasket is available upon request.
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INSTALLATION OF PARSON MANHOLE INSERTS:
No special tools are required to install PARSON MANHOLE INSERTS. Just remove
the manhole cover and clean the rim of the frame. Place the PARSON MANHOLE
INSERT on the manhole frame rim and replace the manhole cover.
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