You may need to scroll horizontally to view all table columns.
|Description||Square/Rectangular||A||B||C||E||F||Lid Weight||Grate Type||Square Feet Open||Weir Perimeter Lineal Feet|
|Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459||Square||31-1/2 x 31-1/2||1-1/2||30 x 30||36 x 36||4||364#||A OR C||2.1||10.5|
|All dimensions are listed in inches unless otherwise noted.|
Castings strong enough to handle severe loads are inherently heavy. Lifting these heavy lids/gates to gain access to sub-ground utilities has been an issue for maintenance crews. Lifting these heavy covers requires multiple personnel and lifting equipment. With Neenah’s Spring-Assist Hatches, a single maintenance worker can quickly open the lid, and secure it in the upright position with Neenah’s hold open device and perform the necessary work.
FEATURES UNIQUE to the NEENAH R-3498 SERIES
Optional threaded hole in frame for Grounding Strap – specify if required.