Vibration isolators for suspended equipment with minimum static deflection requirement exceeding 0.3″ (7.5 mm), and where both high and low frequency vibrations are to be isolated, shall be hangers consisting of a laterally stable spring in series with an elastomer spring bottom cap and assembled in a stamped and welded steel bracket.
The stamped and welded bracket shall be finished with an electro- zinc plating. The elastomer insert shall be molded from oil-resistant compounds and shall be selected to operate within its published load range.
The spring element shall have a minimum lateral stiffness of 1.0 times the rated vertical stiffness.
Springs shall be color coded or otherwise identified to indicate load capacity.
The hanger bracket shall be designed to carry a 500% overload without failure.
Isolation hangers shall be selected by the manufacturer for each specific application to comply with deflection requirements as shown on the Vibration Isolation Schedule or as indicated on the project documents.
The combination isolation hanger assembly with neoprene insert shall be Model SHAA or SHAB, as manufactured by Kinetics Noise Control, Inc.