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Manhole Protector Ring |
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Specifications Flyer PDF. Click Here!
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Top and bottom view of Manhole
Protector Ring |
An Easier Alternative to Cold
Patching
Now you can smooth
over those manhole risers during road construction projects in a
matter of seconds. Made of tough durable rubber, these protector rings
fit securely around manhole risers. They won't shift or slip. Just
drop them into place and remove them by simply picking them up. You
will save money, too, because the rings can be used over and over again.
Easily stacked to save space. Their subtle gradient design enables
motorists to drive over exposed manhole risers smoothly and safely
without damaging tires or their vehicle. Manhole Protector Rings come
in various sizes to accommodate different diameters of manhole risers.
 The
MUTCD requires that a manhole exposed during a milling operation
be protected by a slope of asphalt if the manhole is exposed
over .5".
Reusable Manhole Protector Ring
is recommended to give protection to manholes exposed up to 2.5"
high. |
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Eliminates
need for cold patching
Fast, simple installation
Snug fit
Provides
smooth riding
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Reusable
Stackable
for storage
Made
of durable 100% recyclable rubber
Available
in different sizes
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Specifications |
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Part # - MPR31 - 31" hole diameter, 2" high and weighs
55 LB.
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Part # - MPR26 - 26" hole diameter, 2" high and weighs
68 LB.
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Part # - MPR10 - 10" hole diameter, 2" high and weighs
29 LB.
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Model Number
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Outer
Diameter
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Inside
Clearance
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Thickness
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Weight
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A
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B
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C
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MPR 31
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48"
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31"
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2"
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55 lbs
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MPR 26
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48"
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26"
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2"
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68 lbs
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MPR 10
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29"
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10"
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2"
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29 lbs
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Material: 100% recycled rubber
Density: 0.6 oz/cu in. ASTM C642
Fabrication: compression molded
deposit
Durometer harness: 66A ASTM D2240
Tensile strength: 300 psi ASTM D412
Elongation: 90% ASTM D412
Brittleness: 40°F ASTM D746
Coefficient of thermal expansion: 8
x10.5 in/in/F ASTM C531 |
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Savings
per Unit Installation |
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METHOD
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Cost per Manhole
Avg. Price per Contractors
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Manhole Protector Ring (Price
includes labor and cost
of MPR using a life cycle of 50 times used)
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$ 5.75
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Take out riser and plate it
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$500.00
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Leave existing apron
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$200.00
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Cold Patch or Hot Mix
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$200.00
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Use Grindings (Equipment and Labor, excludes
liability)
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$ 30.00
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Use Barricade (Barricade Life at 10 times, excludes
liability)
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$ 5.45
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