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SAMSON OCEANFRONT PARK <br />CITY OF SUNNY ISLES <br />TECHNICAL SPECIFICATIONS <br /> <br />VIBRATION CONTROLS FOR PLUMBING PIPING AND EQUIPMENT 15078-2 <br /> <br /> <br /> <br />1. Description: All-directional isolator with restraints containing two separate and opposing <br /> elastomeric elements that prevent central threaded element and attachment hardware from <br /> contacting the housing during normal operation. <br />a. Housing: Cast-ductile iron or welded steel. <br />b. Elastomeric Material: Molded, oil-resistant rubber, neoprene, or other elastomeric material. <br /> <br />2.04 <br /> <br />OPEN-SPRING ISOLATORS: <br />A. Freestanding, Laterally Stable, Open-Spring Isolators: <br />1. Outside Spring Diameter: Not less than 80 percent of the compressed height of the spring at <br /> rated load. <br />2. Minimum Additional Travel: 50 percent of the required deflection at rated load. <br />3. Lateral Stiffness: More than 80 percent of rated vertical stiffness. <br />4. Overload Capacity: Support 200 percent of rated load, fully compressed, without deformation <br /> or failure. <br />5. Baseplates: Factory-drilled steel plate for bolting to structure with an elastomeric isolator pad <br /> attached to the underside. Baseplates shall limit floor load to 500 psig <br />6. Top Plate and Adjustment Bolt: Threaded top plate with adjustment bolt and cap screw to <br />. <br /> fasten and level equipment. <br /> <br />2.05 <br /> <br />HOUSED-SPRING ISOLATORS: <br />A. Freestanding, Laterally Stable, Open-Spring Isolators in Two-Part Telescoping Housing: <br />1. Outside Spring Diameter: Not less than 80 percent of the compressed height of the spring at <br /> rated load. <br />2. Minimum Additional Travel: 50 percent of the required deflection at rated load. <br />3. Lateral Stiffness: More than 80 percent of rated vertical stiffness. <br />4. Overload Capacity: Support 200 percent of rated load, fully compressed, without deformation <br /> or failure. <br />5. Two -Part Telescoping Housing: A steel top and bottom frame separated by an elastomeric <br /> material and enclosing the spring isolators. <br />a. Drilled base housing for bolting to structure with an elastomeric isolator pad attached to the <br />underside. Bases shall limit floor load to 500 psig <br />b. Top housing with attachment and leveling bolt. <br />. <br /> <br />2.06 <br /> <br />RESTRAINED-SPRING ISOLATORS: <br />A. Freestanding, Laterally Stable, Open-Spring Isolators with Vertical-Limit Stop Restraint: <br />1. Housing: Steel housing with vertical-limit stops to prevent spring extension due to weight <br /> being removed. <br />a. Base with holes for bolting to structure with an elastomeric isolator pad attached to the <br />underside. Bases shall limit floor load to 500 psig <br />b. Top plate with threaded mounting holes. <br />. <br />c. Internal leveling bolt that acts as blocking during installation. <br />2. Restraint: Limit stop as required for equipment and authorities having jurisdiction. <br />3. Outside Spring Diameter: Not less than 80 percent of the compressed height of the spring at <br /> rated load. <br />4. Minimum Additional Travel: 50 percent of the required deflection at rated load. <br />5. Lateral Stiffness: More than 80 percent of rated vertical stiffness. <br />6. Overload Capacity: Support 200 percent of rated load, fully compressed, without deformation <br /> or failure. <br /> <br /> <br />