Mechanical Supplies
Floor-Mounted Vibration Isolators
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- Kinetics Model FLS and FLSS restrained spring isolators, free-standing, large-diameter, laterally stable steel springs in a welded steel housing that limits vertical travel if the equipment load drops or an external uplift force is applied. Standard products reach 4" (102 mm) static deflection and 23,200 lb (10,524 kg) capacity, with a neoprene acoustic pad in series with the spring
- Model FMS combines the restraint and the isolator in one modular unit.
Application
Placed under chillers, pumps, air handling units, generators and cooling towers standing on structural slabs, particularly above occupied space or on long-span floors where the deflection has to compensate for a flexible structure. The restrained housing matters on equipment whose weight changes in service, cooling towers when drained, AHUs when a fan is removed, because an unrestrained spring unloads and lifts the unit off its intended level.
Standards & Reference 5 cited
ASHRAE Handbook, HVAC Applications Ch. 49
The noise and vibration control chapter of the ASHRAE Applications Handbook: the reference isolator selection and deflection tables are drawn from.
ASCE 7 Ch. 13
The seismic design requirements for nonstructural components: the chapter that decides how mechanical plant must be restrained against earthquake.
IBC
The International Building Code: the American model code that sets where a rated assembly is required in the first place.
ICC-ES AC156
The acceptance criteria for seismic certification by shake-table testing: how equipment earns a certificate rather than a calculation.
ASTM E90
The laboratory measurement of airborne sound transmission loss: the raw data a partition's acoustic rating is derived from.
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