Ladtech, Inc.
Our Company Contact Us Offering a solution to the age-old problems associated with manhole adjustment rings.
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Sizes and Specifications - Sizes & Design Data

DESCRIPTION OF POLYETHYLENE MANHOLE ADJUSTING RING FLAT DESIGN:

Plastic injection molded adjusting ring
Molded from high density polyethylene as defined in ASTM Specification D-4976
Actual resin properties will vary allowing for the utilization of 100% regrind material
The percent of post consumer waste to industrial waste will vary with availability and property retention needs
Color, shade, and uniformity will vary with the mix of the post consumer and industrial waste materials
Dimensions shown are normal - actual size will vary within allowable tolerance and required fit
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Adjusting Ring Flat Design
Click here to download CAD files
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DIMENSION SCHEDULE
Cone Size Dim A Dim B Dim C Dim D Dim H
24" 33.50" 23.75" 5.00" 23.25" 1.25, 1.50, 2.00, 4.00"
27" 36.50" 26.75" 5.00" 26.25" 1.25, 1.50, 2.00, 4.00"
30" 39.50" 29.75" 5.00" 29.25" 1.50, 2.00, 2.25, 4.00"
32" 41.50" 31.75" 5.00" 31.25" 2.00, 3.00"
34" 41.50" 33.75" 4.00" 33.25" 2.00, 3.00"
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