Isolation pads shall be single ribbed or crossed, double ribbed elastomer-in-shear pads, in combination with steel shims when required, having minimum static deflections as tabulated.
All pads shall be true elastomer-in-shear using alternately higher and lower ribs to provide effective vibration isolation, and shall be molded using 2500 PSI (176 kg/cm2) tensile strength, oil resistant compounds with no color additives.
Pads shall be 45 to 65 durometer and designed to permit 60 or 120 PSI (4.2 to 8.4 kg/cm2) loading, respectively, at maximum rated deflections.
When two isolation pads are laminated, they shall be separated by, and bonded to, a galvanized steel shim plate.
Neoprene vibration isolators shall have minimum operating static deflections as shown on the Vibration Isolation Schedule or as indicated on the project bid documents, but not exceeding published load capabilities.
Neoprene vibration isolators shall be Model NPS, NPD, NGS or NGD, as manufactured by Kinetics Noise Control, Inc.
