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SAMSON OCEANFRONT PARK <br />CITY OF SUNNY ISLES <br />TECHNICAL SPECIFICATIONS <br /> <br />VIBRATION CONTROLS FOR PLUMBING PIPING AND EQUIPMENT 15078-3 <br /> <br /> <br /> <br />2.07 <br /> <br />HOUSED-RESTRAINED-SPRING ISOLATORS: <br />A. Freestanding, Steel, Open-Spring Isolators with Vertical-Limit Stop Restraint in Two-Part <br /> Telescoping Housing: <br />1. Two -Part Telescoping Housing: A steel top and bottom frame separated by an elastomeric <br /> material and enclosing the spring isolators. Housings are equipped with adjustable snubbers to <br /> limit vertical movement. <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. Threaded top housing with adjustment bolt and cap screw to fasten and level equipment. <br />. <br />2. Outside Spring Diameter: Not less than 80 percent of the compressed height of the spring at <br /> rated load. <br />3. Minimum Additional Travel: 50 percent of the required deflection at rated load. <br />4. Lateral Stiffness: More than 80 percent of rated vertical stiffness. <br />5. Overload Capacity: Support 200 percent of rated load, fully compressed, without deformation <br /> or failure. <br /> <br />2.08 <br /> <br />PIPE-RISER RESILIENT SUPPORT: <br />A. Description: All-directional, acoustical pipe anchor consisting of two steel tubes separated by a <br /> minimum 1/2-inch- <br />1. Vertical-Limit Stops: Steel and neoprene vertical-limit stops arranged to prevent vertical <br />thick neoprene <br /> travel in both directions. <br />2. Maximum Load Per Support: 500 psig <br /> directions. <br />on isolation material providing equal isolation in all <br /> <br />2.09 <br /> <br />RESILIENT PIPE GUIDES: <br />A. Description: Telescopic arrangement of two steel tubes or post and sleeve arrangement separated <br /> by a minimum 1/2-inch- <br />1. Factory-Set Height Guide with Shear Pin: Shear pin shall be removable and reinsertable to <br />thick neoprene <br /> allow for selection of pipe movement. Guides shall be capable of motion to meet location <br /> requirements. <br /> <br />2.10 <br /> <br />ELASTOMERIC HANGERS: <br />A. Elastomeric Mount in a Steel Frame with Upper and Lower Steel Hanger Rods: <br />1. Frame: Steel, fabricated with a connection for an upper threaded hanger rod and an opening <br /> on the underside to allow for a maximum of 30 degrees of angular lower hanger-rod <br /> misalignment without binding or reducing isolation efficiency. <br />2. Dampening Element: Molded, oil-resistant rubber, neoprene, or other elastomeric material <br /> with a projecting bushing for the underside opening preventing steel to steel contact. <br /> <br />2.11 <br /> <br />SPRING HANGERS: <br />A. Combination Coil-Spring and Elastomeric-Insert Hanger with Spring and Insert in Compression: <br />1. Frame: Steel, fabricated for connection to threaded hanger rods and to allow for a maximum <br /> of 30 degrees of angular hanger-rod misalignment without binding or reducing isolation <br /> efficiency. <br />2. Outside Spring Diameter: Not less than 80 percent of the compressed height of the spring at <br /> rated load. <br />3. Minimum Additional Travel: 50 percent of the required deflection at rated load. <br />4. Lateral Stiffness: More than 80 percent of rated vertical stiffness. <br />5. Overload Capacity: Support 200 percent of rated load, fully compressed, without deformation <br /> or failure.