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Home//Municipal//Products//Airport Castings//Manhole Frames & Lids
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 Series
Airport Manhole Frame, Lid
| 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-3942-1 | 27 | 33-1/2 | 2-1/2 | 24 | 36 | 9 | 1-1/2 | 1 | Gray Iron |
| R-3492-A | R-3942-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-C
Airport Manhole Frame, Solid Lid
- For built-up manhole construction
- Available with square base flange, see R-1795M.
R-3493-A
Airport Manhole Frame, Solid Lid
- For built-up manhole construction
- Frame ring consists of 6 equally spaced lugs.
R-3494
Airport Manhole Frame, Ductile Iron 4-piece Lid
- For built-up manhole construction
R-3495
Airport Manhole Frame, Ductile Iron Lid, Bolted/Gasket Sealed
- For slab or built-up manhole construction
All dimensions are listed in inches unless otherwise noted.
To order Neenah Foundry products, please call 800.558.5075.
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