Airport Castings: Manhole Frames & Lids

Neenah Foundry offers a variety of cast iron manhole frames and lids for the airport sector. Select from the list below to find the airport manhole frames and lids that fit your needs.

R-3492+

R-3492 Series

Airport Manhole Frame, Lid

R-3492

Catalog Number Grate Type Square Feet Open Weir Perimeter Lineal Feet
R-3492-1 G 1.6 7.1
R-3492-A1 G 2.4 8.5
Catalog No.
Solid Lid
Catalog No.
Open Grate
A AA B C E F G H Lid/Grate
Material
R-3492 R-3492-1 27 33-1/2 2-1/2 24 36 9 1-1/2 1 Gray Iron
R-3492-A R-3492-A1 32-3/8 39-1/2 2 30 42 9 1-1/2 1 Ductile Iron
  • For slab and built-up manhole construction
  • Top and bottom flange provide complete anchorage so frame becomes an integral part of the slab. Can be gasket sealed for watertight application if specified.

R-3492-B+

R-3492-B

Airport Manhole Frame, Solid Lid

R-3492-B

For Slab Manhole Construction.

R-3492-C+

R-3492-C

Airport Manhole Frame, Solid Lid

R-3492-C

  • For built-up manhole construction
  • Available with square base flange, see R-1795M.

R-3493-A+

R-3493-A

Airport Manhole Frame, Solid Lid

R-3493-A

  • For built-up manhole construction
  • Frame ring consists of 6 equally spaced lugs.

R-3494+

R-3494

Airport Manhole Frame, Ductile Iron 4-piece Lid

R-3494

  • For built-up manhole construction

R-3495+

R-3495

Airport Manhole Frame, Ductile Iron Lid, Bolted/Gasket Sealed

R-3495

  • For slab or built-up manhole construction

R-3497-A+

R-3497-A

Airport Manhole Frame, Lid

R-3497-A

  • For built-up manhole construction

R-3499+

R-3499

Airport Utility Frame, Double Iron Cover

R-3499

Available with Type C Grate.

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