Kinetics SRH hangers are superior to hangers which incorporate only springs, which can transmit noise through the all-metal construction, and hangers which incorporate only pads, which can transmit low frequency vibration. SRH 4" hangers are available in deflections from 4.09" to 4.40" (104 mm to 112 mm), and in capacities from 100 to 3850 lbs. SRH 1" and 2" hangers are available in deflections from 1.20" to 2.40" (30 to 61 mm), and in capacities from 12 to 3500 lbs. Isolation brackets will carry a 500% overload without failure. Hangers with properly deflected coils will allow a support rod misalignment through a 30° arc without short-circuiting. All SRH hangers incorporate a high deflection, color-coded spring element with load transferplate and a 0.4" (10 mm) deflection elastomeric isolator complete with load transfer plate. SRH 1" and 2" hangers feature Kinetics patented No-Short spring cap. Springs are polyester powder coated, with a 1000-hour salt spray rating per ASTM B-117. To assure stability, the spring element has a minimum lateral spring stiffness of 1.0 times the rated vertical stiffness. Kinetics SRH Vibration Isolation Hangers consist of free-standing, large diameter, laterally stable steel springs in series with an elastomer-inshear insert, assembled into a stamped or welded hanger bracket. Kinetics SRH hangers are available in a wide range of load and static deflection selections and can be provided with labor-saving accessories for adaption to wire or strap suspension systems, and spring may be preloaded for ease in erecting piping at a fixed elevation. Standard SRH hangers are shipped fully assembled and ready for installation in threaded metal rod suspension systems. High sound transmission loss ceiling systems can be isolated by the use of SRH hangers in the ceiling suspension system. In noise sensitive areas, the pipe hangers selected should have the same deflection as that specified for the equipment isolation and all piping in the building should be isolated. The remaining spring hangers should have a minimum deflection of 1" (25 mm). For typical installations, the three spring hangers closest to the equipment should have equal deflection to the equipment isolators. Kinetics' minimum recommendation for the placement of spring hangers is that they be installed on all piping in the equipment room and on the first 50' (15 m) for piping that extends outside of the equipment room.
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