Deeter Foundry

Manhole Adjusting Rings

Adjusting rings (or extension rings, as they are sometimes called) eliminate the necessity of raising or replacing existing manhole frames on resurfacing projects. The cover recess is the same depth and diameter as the existing manhole frame. Amount of raise coincides with thickness of resurfacing material, thereby bringing the manhole lid to a new position flush with refinished roadway surfaces.

Manhole adjusting rings can be placed rapidly and are a permanent installation. Use of adjusting rings may reduce raising costs to as little as 20% of digging up the old manhole frame and resetting it to new grade.

Click on the model number to view the model drawing and product information.

1848-1859 Manhole Adjusting Rings-

1848-1859

Manhole Adjusting Rings

Heavy Duty

1848-1859 Manhole Adjusting Rings

Catalog No. A B R
1848 23 3/8 1 1/4 2
1848-A 23 3/8 1 1/4 2 1/2
1848-B 23 3/8 1 1/4 3
1850-A 24 1/4 1 1 1/2
1850-B 24 1/4 1 2
1850-C 24 1/4 1 2 1/2
1850-D 24 1/4 1 3
1850-E 24 1/4 1 1/2 2 1/8
1850-F 24 1/4 1 1/2 2
1850-F1 24 1/4 1 1/2 2 1/2
1850-F2 24 1/4 1 1/2 3
1853 32 1/4 1 7/16 2
1854 37 3/4 3/4 1 1/2
1854-A 37 3/4 3/4 2
1855-A 23 7/8 1 1/4 1 3/4
1855-B 26 1/2 1 1/8 2
1855-C 26 1/4 1 1/8 1 1/2
1855-D 26 1/4 1 1/8 2
1856 23 1/2 1 1 1/2
1856-A 23 1/2 1 2
1856-B 23 1/2 1 2 1/2
1856-C 23 1/2 1 3
1857 23 3/4 1 1/2 2
1858 25 1/2 1 3/8 2
1859 30 3/8 1 1/4 2

Cutaway View of Adjusting Ring Installation

Adjusting Ring Installed

All dimensions are listed in inches unless otherwise noted.

To order Deeter Foundry products, please call 800.234.7466.

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