PM&I: Catalog of Airport Drainage Castings and Manholes: R-3492 Series

PACIFIC MARINE & INDUSTRIAL

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Airport Castings
R-3492 Series

Airport Manhole Frames and Lids

For Slab or Built-up Manhole Construction

These frames can be fitted with grates for drainage.

See R-3491 listings for comparable sizes.

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.

Lids are bolted to frames.

Catalog No.	A	A-A	B	C	D	E	F	Lid Material
R-3492*	27	33 1/2	21/2	24	31	36	9	Gray Iron
R-3492-A	323/8	39 1/2	2	30	37	42	9	Ductile Iron
* 4-anchor bolt holes
Also available with type “G” grate as shown on R-3492-1.

To Calculate Drainage Water Flow

Listed by Product Number

SINCE 1985