In any given industry, the labor force is the workhorse that mainly drives an industrial operation. But without heavy duty machineries and equipment, getting the job done is a difficult task. With this being said, it is therefore critical to protect these heavy machinery from damage caused due to vibration of moving parts. Vibrations, especially those that are emitted by heavy industrial machinery, can cause serious damage to the machines and the flooring beneath it. Hence, to prevent potential damage an anti-vibration isolation pad can be utilized. It is an industrial accessory that is highly beneficial for plants and machinery like these to run smoothly. Here are some of the benefits of an isolation pad that cushions the machines and promotes smooth operation:
- Vibration Reduction: Heavy duty machinery are often prone to damages caused by vibrating parts of the machine. Hence, regular maintenance is required to ensure that the machines are working at its best. This is mainly because the moving parts within a machine can be desynchronized or dislodged due to the regular shakes and rattles of the machine itself. But, by placing an anti-vibration isolation pad, it can reduce the severity of the shakes and rattles that may damage a machine’s inner part.
- Vibration pads offer a Stable Base: The surface of production floors are hard concrete and can therefore be detrimental to the functionality of industrial machinery. Due to uneven or damaged floor surfaces, it may cause the industrial equipment to rock back and forth. But, by placing anti-vibration pads, it can provide a stable base for machinery and can thus prevent rocking of machine.
- They are Long-Lasting and Durable: As we all know, rubber is a tough and resilient material. Its ability to withstand physical abuse is one of the major reason why it is utilized so extensively in Industrial setup and various other application.
Anti-vibration rubber pads are the most inexpensive piece of insurance for industrial machineries and other applications. In a manufacturing plant there is always a sense of anxiety that stems from the rattling of machinery in the production floor. If a machine is damaged, the cost of repairs can be hefty. So, to prevent the possibility of damage, utilizing of rubber anti-vibration pads are essential. Here is how anti-vibration pads save the potential expenses.
- Protects the production floor from damage: Machines and equipment’s shaking frantically can damage the surface under it. So, to prevent such damages, rubber anti-vibration pads are installed between the surface and the machine for the purpose of cushioning. These Padded floor mats are made of rubber which is shock-absorbent and highly elastic due to its structural composition. The thick rubber pad is an excellent absorbent, offering heavy-duty cushion to keep the machines away from hard floor surfaces. This in turn prevents damage to the flooring
- Protects your machinery from damages: Industrial machines are sensitive equipment’s that require regular maintenance. These heavy duty machines are prone to damage from the vibrations of the working parts. So, if there are rubber padded floor mats below the machinery, its constant contact with the floors becomes less damaging. Placing a rubber anti-vibration pad under the industrial machinery reduces the vibrations that could potentially damage the equipment. By avoiding potential damages to machinery, one can prevent the impending repair bills and other related losses.
- Resilient & Reasonably Priced anti-vibration rubber pads: Rubber is a durable and resilient material that can cushion machineries from heavy blows and beatings caused due to vibration. The tensile strength of rubber is high, and as a result, rubber can take a great amount of abuse. Although rubber is a tough material, it is yet soft enough to work as a cushioned surface in machines.
Problems : Suspended building systems including equipments like ductwork and piping are the major source of noise and vibration that gets transmitted into the supporting structure. While, in Structural floor, ceiling and roof systems because of the nature of their construction, tends to act as sounding boards, turns these vibrations into audible noise and transmits down from the building structure through the suspension wires.
Solution : Spring vibration isolators:
For both the given scenarios, in order to reduce the effects of noise and vibration, a complete resilient material needs to be installed in the system. Andre HVAC Inc.’s spring vibration isolators are a perfect solution that helps reduce the problem. These spring hangers are installed in line with threaded rod support to break the rigid path. The uniquely designed spring vibration isolators are mainly used for low frequency vibrations and its elastomeric isolators helps in absorbing high frequency vibrations. Depending on the requirement a combination of both options can be utilized to maximize performance. The spring Isolation hangers are to be incorporated into the suspension system at all points of support. These isolation medium are high tensile rubber that assure resilience and are anti-ozonant, assuring long life.
Acoustic suspended ceilings
Acoustic suspended ceilings are an excellent way of preventing airborne noise from passing into the ceiling structure, or preventing noise and vibration from being transmitted to the adjoining floor or room or adjoining space. But for this, it is very essential to select the right acoustic hanger. Andre HVAC Inc. helps you calculate the most effective solution as per you application requirement. Andre HVAC has a large range of equipments available to suit a variety of ceiling weights and noise, vibration isolation requirements. Acoustic hangers like the rubber hangers and spring hangers offered have properties that are suited to certain types of acoustic /vibration, noise control. While Rubber hangers are best suited for higher frequencies, the spring hangers are best suited for lower frequencies of noise, such as impact vibration or vibrating plant.
Why is a concrete inertia base recommended for pumps?
Andre HVAC Inc. recommends that all flexible-coupled pumps should be installed on a concrete inertia bases, irrespective of the horsepower while using vibration isolators. The main reason for installing a concrete inertia base is to provide strength in order to limit excess movement due to operating loads & provide attachment of vibration isolators. Especially on large pumps over 75 HP the mass of the inertia base becomes critical for mitigating vibration. While on systems with only 3 or 5 horsepower you run the risk of putting strain on the coupling if mounting directly on isolators. Inertia base frames when supported by vibration isolators they form the best in equipment isolation, support, anchoring, and vibration amplitude control. Also, these equipment’s are considered to be the best noise barrier that limit the noise from the application.
Andre HVAC Inc. offers solution for every size of base mounted pumps at an affordable and client requirement. We customize & manufacture the inertia bases to suit all brands of equipment’s & application in terms of size, mass and finish. The inertia base frames that are manufactured are stronger and durable than the standard inertia base frames plainly for the reason of having used heavier & good quality steel.
Cooling towers are among the heaviest pieces of equipment that are located on the roof top of buildings. Often their change in operating weight poses a great challenge when isolating cooling towers for vibration and restraining them for wind or any seismic activity. Also noise control is another common problem faced in a cooling tower that is often overlooked. Cooling towers are applications or devices that are installed close to the property line or office windows and the noise coming from the fans of these cooling tower causes a nuisance.
Problem: Air borne noise
Sound levels in the property line are required to be at 45 to 60 DBA, again depending from location to location they vary and noise above this level results in complaints from neighboring offices or residents. Due to the extremely low static capabilities of the cooling tower fans, coupled with moisture and corrosion issues, makes the noise control solution in the vicinity all the more challenging.
What may seem to be a difficult challenge to many, is surely not a challenge for Andre HVAC Inc. with their assistance in acoustic calculation, will help determine whether noise control is required and, if so, which equipment best suits to isolate the noise.
Andre HVAC Inc.’s restrained seismic spring mounts provide control of structurally transmitted noise and vibration, with limited movement. By installing these spring mounts, equipment are restrained in all directions and thus reducing damage caused by conditions that would otherwise move equipment excessively. Restrained Spring Mounts are ideal for protecting connections to Cooling Towers wherein the weight can change with fluid fluctuations that cause the units to move vertically. Also with these restrained seismic spring mounts they also meet most of the building code requirements where earthquakes and high wind load conditions are experienced.
Problem: Structure borne noise
Structure borne noise is noise traveling through the structure instead of the air. Vibration from the fan is transferred to the structure creating high frequency noise problems in different parts of the building. Unlike airborne noise, diagnoses of structure borne noise post design is challenging.
Due to the potential change in the operating weight of the cooling tower, restrained isolators are recommended to be installed in the application. It is recommended that a minimum of 2-inch deflection is required so that the springs in use, operate at a high efficiency. Also, for cooling towers that are not engineered to withstand point loading, a structural base is required for better performance of the application. Andre HVAC Inc. manufactures a number of restrained isolators to meet the application requirement of clients for noise and vibration isolation.
Problem : Machines are not only a necessity in every household but also play major role in the successful functioning of any industry. From very small household appliances to the big hulking, room sized machines, we rely on it for everything for making our food to its usage in production of goods in industries. No matter what size equipment or application machine are being used, but there are issues that can make these machines unpleasant and at times even dangerous. Among a number of problems, the noise and vibration problems are the most common issues that all face. Both these problems can make using the machine unpleasant, not only for the people who are directly operating it but also for others who are around it as well and in some cases even to the occupant in the adjoining space as well.
Vibration in a machine is a serious issue that could even lead to generation of high frequency noise. While in some cases, too much of vibration in a unit could also lead to a complete breakdown. For a business that runs on these machines can be a devastating loss of time and revenue which in turn affects the business.
Solution : The best solution for mechanical vibration and high frequency noise are anti vibration isolation pads offered by Andre HVAC Inc. Based on the application, required deflection, cost and compatibility with associated structure one can select the right anti vibration isolation pads that suits their application. Depending on the requirement a range of anti-vibration isolation pads like rubber pads, rubber cork pads, waffle rubber pads, rubber steel pads etc. are offered to meet the machine requirements.
These isolation pads are used applications like Fans, Fan Coil units, Air Handling units, Generators& Pumps etc. to absorb the potential noise and vibration from them. Available in different design, thickness and load, these equipments offers outstanding durability in terms of being Water/ Weather Resistance, Ozone Resistance & Oil resistance etc. these anti vibration isolation pads are made of high quality material, easy in installation& can be cut to any size as per requirement.
Chillers are one of the loudest equipment in the HVAC system. These chillers are usually placed in a mechanical room to prevent noise from transmitting to sound sensitive area like the office space. But even though placed in the mechanical room, these chillers can cause high frequency noise and vibration which can be heard by occupants or people in the adjustment room.
Problem: Structure-borne Noise in chillers
Chillers are a major source of vibration. If this vibration is transferred to the structure, it can create serious noise problems in many adjoining areas of the mechanical room and parts of the building. Vibration or noise can also travel through the connecting piping.
Solution : For equipment’s like chillers, Inertia bases isolators form the additional mass to the bottom of the chillers which lowers the center of gravity and thus helps dampen vibration. Also, these inertia base isolators are required to act as a partial noise barrier to reduce reaction movement caused due to the change in the operating weight of the chiller. Again, inertia base isolator’s acts as a support and flexible connectors to isolate the vibration or noise transmitting through the connected pipe, making it the best equipment for isolation, support, anchoring, and vibration amplitude control.
Problem: In case of Radiated Noise
At times the problem occurs when noise radiates through the walls, ceiling or floor. In fact, noise can penetrate to the ducts of the mechanical room, travel through the ductwork and could cause a problem in a nearby rooms and space.
Solution: Usually, floors ceiling and walls acts as an air barrier that reduces the low frequency noise to penetrate through, offering as a great noise barrier for sound sensitive space near the mechanical room where the chillers are placed. However, at times there is a possibility of a break in of noise. Hence, installation of equipment’s like vibration isolation mounts and silencers are essential between the wall of the mechanical room and the neighboring room so as to prevent any kind of noise breakout in the adjoining areas. Andre HVAC offers high quality vibration isolation mounts that are available in a wide range of shapes and sizes which vary according to the application and client requirement. The product line that is offered includes various rubber to metal bonded vibration isolation mounts.
Air condition units have become a necessity at residential premises as well as commercial spaces to bring down heat levels. But, like any other appliances and electronic device, they come with their downsides, and one of the major problems faced in air condition is their high frequency noise and vibration.
Problem: The air condition units comprises of a number of moving parts that makes them noisy and vibrate, especially the compressor and the condensing fan motor are the major source of these problems.
Noise and vibration caused due to the Compressor in an AC Unit
The compressor is what pumps Freon through lines to remove heat and this is something that can sometimes be loud. Most of the air condition units do not come with a noise suppressor blankets and apart from this some compressors vibrate when they run making them loud during the operation.
Solution : The noise from an AC unit if caused due to excessive vibrations can be resolved using Andre HVAC’s high quality anti-vibration rubber pads. These inexpensive anti vibration rubber pads can be easily installed under the feet of the compressor and thus dampen the vibrations and decrease the noise levels. The rubber isolation pads offered are made of high grade Neoprene. This material offers outstanding durability properties like Water/ Weather Resistance, Ozone Resistance & Oil resistance etc. These Vibration rubber pads are known for their efficiency in isolating noise and vibration that creates nuisance
High frequency noise due to the Condensing Fan Motor in AC unit
A condensing fan motor is a huge fan that blows heat away from an air condition unit during its operation. These motors if not installed well can create high frequency noise or a loud buzzing noise. This usually happens due to bad manufacturing or in case when shipping the unit somehow tweaked the casing of the motor. Also, at times the compressor motor might have worn bearings that make it spin unevenly.
Andre HVAC offers the best anti vibration pads and noise isolation rubber pads to reduce the high level of noise and vibration caused from a fan motors in a condenser. These anti vibration pads, available in different design, thicknesses & load are of good quality and offer excellent durability as well.
How is vibration isolation mounting designed?
The anti vibration mountings are made of heavy duty materials that provide maximum isolation. These mountings ensuring high vertical static & shock load a capability that provides optimum vibration isolation value in the horizontal shear direction. Depending on the needs of load deflection, these mounts can be designed and engineered in various types and specifications. Made of a combination of sheet metal components, nuts, bolts, rubber etc these mountings can easily bear heavy loads. Also in order to prevent mountings from rusting, low carbon steel is used. Apart from this high grade neoprene rubber are used in the manufacturing of isolation mounts to provide better cushion to the metallic parts of the machines.
How do vibration isolation mountings work?
When mounted machines operate there is a probability of bearing different load variations on the mountings. The high load deflection of such vibration isolation mountings makes it perfectly suitable for applications where the loads acting on the mounting may be subjected to wide variations during the normal operation of the mounted machines. The vibration isolators when used in the machine result in an excellent shock and vibration isolating mountings.
When is it the right time to replace anti vibration rubber mountings?
Once installed in machines and applications, mountings bear lots of pressure and wear & tear, therefore it is essential that after a particular period of time these mountings should be replaced by the new ones in order for the machines to run smoothly and provide optimum performance. If these mountings are not replaced in time then the machines will be at a risk of undergoing various damages such as loosening of various nuts, screws and bolts, vibrations, wear & tear, and much more . This could ultimately lead to a shortened life span of the machine. Hence regular and proper checkup of these mountings is very essential.
Selecting the right type of anti vibration Mountings
There are a few factors that need to be considered before selecting the right vibration isolator’s mountings
• One must always identify the load bearing capacity of the mountings
• Also the deflection characteristics of the mountings need to be known before selecting for the application.
- Always check the shock absorption properties of the mounting before finalizing
• Depending on the application in use can you decide the size of the mountings
• Always select a mounting material that best suits your application.
le of these types of noise is vibrations produced by operating machinery, transmitted through their structural supports and parts.
HVAC systems when installed, generates different levels of sound, depending on the design of application, its installation and equipments power source. There are a number of noise specific problems that are associated with different elements of the installation. In every case, the solution will vary depending on the application and the kind of noise problem in it. Also, for the solution to be more effective, simpler and more economical if implemented at the initial design stage itself. It is very essential for an individual to select right noise isolation or damping equipment that well suits your application. In case of a wrong selection, may also at times lead to the aggravation of the problem.
Always remember when seeking a solution for noise in HVAC installations it is necessary to
- Analyze the kind of noise problem faced in the application or equipment.
- Try Identifying the origin and transmission path of the noise in the machine or application
- select the best noise isolation equipment and Implement appropriate solution
Depending on how the sound is propagated, there are two kinds of noise
Airborne sounds as the name suggests, the noise is transmitted through air. The source is generally easy to identify and transmission is propagated directly via the air to the structure. Examples in HVAC installations include emissions from ventilation equipment, aerodynamic emissions, and sound transmission along the duct network. The sound produced in one room can be heard in another room.
Impact sound is the result of the shock to the building structure that produces vibrations transmitted via the parts of structure elements. Typically the best example of these types of noise is vibrations produced by operating machinery, transmitted through their structural supports and parts.