Isolating vibration at the source
In modern building construction, improved design allows for lighter but inherently more flexible structures. As a result, there is a growing need to safely address unwanted vibration and structure-borne noise from machinery, plantrooms, and auxiliary equipment. The addition of more powerful air-conditioning and auxiliary building equipment, often installed in upper-level plantrooms can compromise foundations and damage adjacent structures. Noise generated by vibration can also be a major problem in such lightweight flexible structures, compounded by the trend of higher density living and the demand for quieter living and working conditions.
Embelton offers a comprehensive range of engineered vibration mitigation products. Some examples are open and restrained spring mountings, single and double deflection rubber elements, and versatile pad mounts.
Rubber mounts are an efficient low cost option offering a reasonable degree of isolation efficiency. Rubber mounts come in single or double deflection and are effective isolators in standard non-critical applications.
Compared to rubber mounts, spring mounts have increased static deflection resulting in greater isolation efficiency. This makes them more suitable for critical applications, or for mechanical equipment which have low disturbing frequencies.
Spring mounts come in a range of deflections and maximum loads, so that the level of isolation can be accurately selected for each application.
Integrated seismic mounts for mechanical equipment are designed to combine spring mount vibration isolation with multi-directional flexible restraint to limit equipment movement under seismic disturbance.
Selection of resilient hangers is an integral part of the total isolation system design, and the deflection of hangers for pipes and ductwork immediate to the equipment should be similar to the isolators supporting the equipment.