Mountings – SLR Spring Mountings SLR and SLRSO restrained mountings limit upward travel when weight is temporarily removed and provide safety stops for windy rooftop applications. All mountings are shipped with removable steel spacers between the sides and the top plate of the mounting as shown in the illustration. When the spacer is in place,…
Mountings – Neoprene Mountings It is possible to reach frequencies as low as 84 cpm(1.4 hz) or even lower using steel springs and provide excellent isolation at RPM or the fundamental frequency, but noise transmission is another issue. The high pitched whines and hums developed by very high speed centrifugal, screw and sometimes reciprocating compressors,…
Mountings – SLF Spring Mountings SLF spring mountings are our standard for all high efficiency installations. This is a bare spring design with a good ratio between the diameter and the working height to assure lateral stability. Our suggested specification states “that the spring diameter shall be no less than 0.8 of the compressed height…
Mountings – Neoprene Mountings Double deflection neoprene mountings and double deflection rails are recommended for minor equipment or basement locations only. We have placed this limitation on all rubberlike materials because of their relatively minor deflections. SPECIFICATION A Neoprene mountings shall have a minimum static deflection of 0.35”(9mm). All metal surfaces shall be neoprene covered…
Complete Specification All of the specification paragraphs are generic in their descriptions and there is never any need to change those descriptions as they apply to all installations. If you have accepted our explanations and like our wording, your specification would appear exactly as it is shown bellow in the PDF document. The paragraph sections…
Blower Minimum Deflection Guide When blowers are 60 HP (45kw) or larger, select deflection requirements for next larger span. A minimum of 2.5”(65mm) should be used unless larger deflections are called for on the chart or these fans are located in the lowest sub-basement or on a slab on grade.
Specification Selection Guide To make a selection using the Specification Selection Guide click here to view all specifications. NOTES: 1. Minimum deflection called for in this specification are not ‘nominal’ but certifiable minimums. The 0.75”(19mm), 1.5”(38mm), 2.5”(64mm), 3.5”(89mm), and 4.5”(114mm) minimums should be selected from manufacturers nominal 1”(25mm), 2”(50mm), 3”(75mm), 4”(100mm) and 5”(125mm) series respectively.…
Typical Isolator Schedule Filled In The information for the vibration isolation specification columns is found in the Specification Selection Guide. You need only reference the type of equipment and fill in the appropriate specification letters and deflections based on the floor span in the equipment’s location. In the given example we are assuming that the…
Specification Writing All of the specification paragraphs are generic in their descriptions and there is never any need to change those descriptions as they apply to all installations. If you have accepted our explanations and like our wording, your specification would appear exactly as shown here. The paragraph sections are in the format of the American…
