Take care of the HVAC equipment with suitable vibration isolators

Most of the tall buildings, skyscrapers, malls, office complexes, hotels, hospitals, and industries have the Heating Ventilation and Air Conditioning systems installed. Keeping in mind the vagaries of the temperature, it is almost essential to have the HVAC systems in

vibration isolators

vibration isolators

order to have the business progress smoothly. The HVAC systems are both voluminous and bulky and come with a number of moving parts. When the installed systems are running you can hear the noise that the equipment makes. There are a huge amount of vibrations generated which if unchecked can pollute the working environment in the building.

The vibration isolator design: The government regulations require that the HVAC equipment is placed on top of the building. The vibration isolator pads for HVAC equipment come in handy for such installations. The vibration isolators consist of an elastomer element that is bonded to a metallic plate or stud on which the HVAC equipment is mounted. The vibration eliminator HVAC is selected based on the load and deflection parameters. It is called a vibration eliminator as it does not allow the vibrations to pass from the moving parts to the floor or to the surrounding support structure. The vibrations are absorbed by the rubber element and the energy is dissipated into the atmosphere as low-grade heat.

Environmental protection: The choice of the elastomer material in the vibration eliminator HVAC is chosen based on the environmental conditions in which it has to perform. For neat and clean environments within the rooms and chambers, simple rubber compounds are suitable. However, for exposed environments like rooftops and industrial floors with oil and water, it is recommended to go in for neoprene vibration isolators. The metallic part can be galvanized or powder coated as per the customer requirements and the environmental conditions. For small air conditioners the vibration isolators are available with a threaded insert enclosed in a neoprene mounting pad. The air conditioner feet can be placed on the neoprene rubber mounts and tightened with screws.

Hanger arrangement: In many installations, it becomes necessary to suspend the HVAC equipment and ducting from the ceiling but above the false ceiling. This area lies directly on top of the working areas and needs a very good vibration control. The spring vibration isolators HVAC are the right choice for such applications. The vibration spring isolators

seismic isolation

seismic isolation

consist of rectangular metallic sheet housing with elastomer elements and a spring with a cap. The vibration isolator spring housing is suspended from the ceiling by using a wire or rod. The metal to metal contact is avoided through a rubber washer.  The ducting or equipment is suspended from a stud that passes through the hole in the spring isolator bracket, the bonded elastomer element and the spring. The stud is tightened with a nut on top of the spring cap.

Work concept of the isolator: The spring gets compressed under the weight of the HVAC equipment, while the elastomer element ensures that the vibrations do not pass on to the metallic suspension and the support structure. In the case of shock or excessive vibrations the vibration isolation spring is assisted by the deflection characteristics of the elastomer element. The spring vibration isolators HVAC are available as single and double deflection types to suit the desired customer requirements. Some vibration isolators are supplied with the springs in the pre-compressed condition from the factory itself. A scale is provided on the inside of the rectangular sheet metal bracket on which the deflection reading can be easily read.

Flexible arrangement: The hole at the bottom of the vibration isolator spring bracket is quite large and allows for a 30-degree arc variation. This allowance takes care of the construction errors which at times can cause problems in the installation process. Thus, the spring vibration isolator HVAC is a versatile hanger for use in the installation of the HVAC equipment.

Andre HVAC International Inc. has been in the field of HVAC vibration damping and isolation right from its inception year 2003. The range of products is very large and allows you to make a selection based on the load bearing capacity and deflection characteristics. The environmental conditions and space constraints also play an important role in the product selection. AHI also helps its clients by providing them with customized solutions wherever the need arises. Product catalogues and specification sheets are available on the website and on request in case the data is required by the client.

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