5 Common Types of Damper Systems

There are many volume control damper manufacturers in UAE. The challenge is to choose from different types of damper systems. That said, this article is for you and can really help you make the right choice.

Buildings with numerous rooms, like offices or schools, may have huge and intricate HVAC systems. To supply air to each of these regions, more than just ductwork will be required. Dampers are used in this situation. Devices with blades enclosed in a square or rectangular framework are called dampers. The style and type of the damper can affect how this design is constructed. For example, some dampers may have a rounded frame to fit into ducting that is rounded. You will also find Fire damper manufacturers in the UAE who are there to provide you with high-quality dampers at a budget-friendly price.

There are several distinct types of dampers, each of which has a particular function despite having a similar design. The five types of dampers that are frequently encountered in HVAC systems are listed below.

1. Control dampers

The airflow through the system is regulated by control dampers that are positioned at various locations in the ductwork. These dampers can also be modified for usage in air mixing zones to heat and cool the air. Many times, throughout the day, control dampers will completely open or completely close their blades to fulfil their task.

2. Balancing dampers

Rooms connected to the ductwork have balanced dampers installed to control air pressure. Uneven air pressure can result in minor inconveniences for residents like slamming doors or sporadic air rushes, but it can also result in more serious issues for the overall system. An unbalanced space may be harder to heat or cool, which puts an excessive amount of stress on the air handling devices.

Technicians balance dampers by changing the angle at which the blades of the damper are angled while measuring the air pressure in the space. The blades of the balancing damper are locked in place to preserve the required air pressure once the proper air pressure has been identified. You can unlock them for future alterations.

3. Backdraft Dampers

To limit airflow to one direction only, backdraft dampers are fitted in particular locations within the duct system. Each blade of these dampers has a shaft attached to one end of it. The blade is transformed into a flap in this design, and it only opens when the air is moving in the desired direction.

The blades of a backdraft damper will close if no air is travelling through them or if air starts to move in the opposite direction. Installing a counterweight in a backdraft damper might help or hinder the opening action. These dampers are not equipped with actuators.

4. Multi-Zone Dampers

Multi-zone dampers are utilized in structures with a single air handling unit, such as modest office buildings or single-building schools. These are substantial assemblies of dampers, each of which is connected to a different zone. Multi-zone dampers are duct-connected devices that regulate the airflow throughout the entire system. A multi-zone damper will have several actuators, each of which will control a different zone. These dampers are frequently sold as a whole package with the air handling unit.

5. Industrial Dampers

Industrial dampers are made to stand up to extreme air pressures and constant temperatures of over 250°F. To survive harsh environments, they are constructed from thick gauge materials, mainly steel. For ultimate durability, each component is securely welded into place.

These dampers are frequently used in power plants and manufacturing plants, sites with significant airflow requirements. The industrial ones are the heaviest available dampers.


There are various types of dampers available, and each type has a specific function. With the exception of the single multi-zone damper, which is installed with a single air handling unit, your HVAC system may need that all of these dampers work together. It’s crucial to understand what each damper works and how it fits into your HVAC system even though you will probably use all of these dampers.

Tecnalco Aluminium Technical Engineering Factory is one of the oldest and largest fire damper manufacturers in the UAE. If you want to know more, call us today for a free consultation. We are happy to answer all your queries.

Proper Sand Trap Preparation For Efficient Recovery

Air quality is a priority in the era of evolving diseases. When it comes to offices, buildings, ensuring the air quality are difficult with having people from different background inside a single enclosed room. So, here technology comes into play. Sand trap installation from the reputed company like Tecnalco will play the role to keep check on the air quality.

Operation and functioning of sand trap louver

Sand trap installation is one of the major steps that every building owner must ensure to take. A good sand trap louver supplier in UAE, will provide you the product, customizing the requirements of the buildings, members and work of the office. In HVAC system sand trap louver are used to take the fresh air in as they are designed to separate particles of sand and dust at low air velocity. The secondary filter will not be loaded with dust and sand particles and hence are the pre filters of sand particles.

Construction of sand trap louver

Blades and frames

These are the main parts of sand trap louver and the equipment have blades and frames of 12mm and 1.5mm thickness respectively.

Bird screen

12mm X 1mm diameter is the standard size of GI wire mesh and the aluminium wire mesh is of different measurement that is 12mm X 12mm X 1.5mm.

Drainage hole

The bottom of the pre filter has holes with a diameter of 20mm for drainage purposes.

Filter frame

20 gauge aluminium sheets are used to make a filter frame.

Filter media

Expanded aluminium is majorly used and optional synthetic filter can also be used.

Specifications of sand trap louver:

High quality extruded aluminium is used to construct the blades and frames giving the advantage of rigidity. It also helps the sand trap louver to be corrosive resistant or corrosion free. A set of composed inverted U-channel are vertically mounted with two opposite rows. And then the bottom of the pre filter has 20mm diameter holes in two rows for the purpose of filtering and drainage of sand particles. To serve the purpose of filter media, the sand trap louver has washable extruded aluminium with aluminium mesh. The thickness of the filter varies as 12mm, 25mm and 50mm.

It is specifically designed to work at higher and medium air velocities. As it can hold sand and dust particles without blocking the air flow, hence ensuring good quality air flow in the premises. For the ventilation of air and inlet duct of air condition system, sand trap installation has become popular. They are appreciated for high quality function as it can operate at high dust concentration and separate sand particles from the air stream ensuring unhindered air flow.

Sand trap louver is specifically installed to purify the air from any dust and dirt particles. It ensures our access to clean and pure air inside the building with no harm to HVAC and other sensitive equipments like electronics. The self emptying mechanisms top the purpose of sand trap louver.

AC Ceiling Diffuser: Everything You Need to Know

AC diffusers ensure that conditioned air is distributed evenly across the room. They are required to maintain the temperature of the room. Different types of diffusers are available in the market. If your home has an HVAC system then by using diffusers you can increase its effectiveness. AC diffusers can be installed in ceilings, walls or floors. A well performing HVAC system saves you a lot of money. Ceiling diffusers are the most commonly used air diffusers. AC ceiling diffusers helps not only in the even spreading of conditioned air but also reduces the noise of the HVAC system. AC air ceiling diffusers are available in various sizes. The most common are round, square and rectangle. Choosing the perfect design can enhance the look of your room. According to the architecture style of the place suitable AC diffuser is to be chosen. Renowned as the best air distribution products manufacturer UAE, Tecnalco Aluminium Technical Engineering Factory provides one stop solution for your diffuser requirements. We are undoubtedly the number one AC ceiling diffuser manufacturer UAE.

Air diffusers balance the cooling of the room as well the heating of the HVAC system. Used with dampers and other accessories diffusers help in the proper working of the whole HVAC system. Made of high durable quality, diffusers not only provide even distribution but also ventilation. Having the best HVAC air distribution products in UAE, the diffusers of Tecnalco are easy to install and helps in maintaining a healthy environment.

Difference between Diffusers and Grille/registers

Grilles and registers are completely different from diffusers. They have different functionality. Grilles/registers are placed to obstruct the entry of unwanted materials like dust, dirt and other particles into the HVAC system while the purpose of diffusers are to uniformly dispense air towards different directions of an area. Through air diffusers air quality can be maintained.

Ensuring a uniform HVAC airflow

By regulating the flow of air you create a comfortable environment in the places where your stay. This not only makes the working of HVAC system effective and efficient but also reduces your utility bills.

Few step to be taken for ensuring an even distribution of air through HVAC system:

  • Monitor and understand the temperature of different rooms – By identifying which rooms are too cold and too warm you can rectify the air distribution easily.
  • Install HVAC diffusers – if it is already installed check if it is functioning correctly. Also check whether it is obstructed by anything.
  • Adjust the diffusers – according to requirement adjust the modes of the diffusers for ensuring good distribution of air.

Use of Essential oils

Essential oils can work well with HVAC system. If essential oils are used along with air diffusers then more comfortable ambience can be maintained. Air diffusers spread the properties of essential oil throughout the room, thereby reducing the growth of moulds and improving the smell of the area.

For excellent quality diffusers hurry and get in touch with Tecnalco Aluminium Technical Engineering Factory, AC ceiling diffuser manufacturer UAE.

Know more about different types of dampers

Air distributor system ensures quality air distribution in conditioned spaces. Different types of air distribution system include dampers, coils, fans, filters, ducts etc. Air Distribution helps in HVAC (Heating, Ventilating, and Air Conditioning). Technalco Aluminium Engineering Factory the leading air distribution products manufacturer in UAE have different type of air distributor systems. As per one’s requirement one can choose from a wide array of products.

Different types of Dampers

The most suitable air distribution system when it comes to buildings like offices and schools are dampers. Dampers are made of plates, blades or valves. They control the flow of air as required. Dampers are an important part in regulating temperature. They even control the spread of poisonous fumes. Fire protection is another integral usage of dampers. Besides maintaining airflow dampers therefore ensures safety. Hence it is very important to have dampers in buildings especially industrial buildings. Our company have the highest quality dampers and is Number1 fire damper manufacturer in UAE.

Different dampers serve different purposes. As per the requirement damper should be chosen wisely. Choosing the right damper will ensure good air flow and long-term usage of the device. Our company will assist you in choosing the right damper. All kind of dampers are available with us. One need not go in search for different dampers to different places. Being the best air distribution products manufacturer in UAE we assure you high standard products and services.

Given below are some of the regularly used dampers:

Fire Dampers

Fire Dampers are fixed mainly in air transfer openings like walls. If fire dampers are fixed, a small fire can be stopped from spreading to the whole building and can be threat to the whole property as well as to the people working in the premise, Fire dampers are made in such a way that they automatically close when the temperature rises and prevent the spreading of fire. Technalco Aluminium Engineering Factory can guarantee that we are the best fire damper manufacturer in UAE.

Ceiling Radiation Dampers

Ceiling Radiation Dampers are built onto the ceilings to regulate radiant heat flowing through openings in ceilings. Made of two or four wing-style blades that are suspended in the open position with a fusible link. These dampers prevent the spread of fire between the floors. Ceiling Radiation Dampers are important for the structural safety of the building. It is one of the commonly used HVAC air distribution products in UAE.

Smoke Dampers

Once smoke reaches a threshold limit smoke dampers close to prevent the smoke from spreading to different parts of the building. Smoke dampers are very important and crucial since smoke released can be toxic. Smoke once uncontrollable can harm everyone in the area. Smoke dampers are typically installed onto the walls of the building and contain damper’s jambs to prevent the circulation of smoke. It is another widely used HVAC air distribution products in UAE.

Combination Fire-Smoke Dampers

Installing a combination fire-smoke damper serves two in one purpose. These dampers prevent the spread of smoke as well as fire. They are made with multiple blades for doing so. Since these meet the requirement of both it can be used for reducing the cost and where there is constant threat of smoke and fire. Being the top-rated air distribution products manufacturer in UAE we have different types of these combination dampers for our customers.

Balancing Dampers

As the name denotes balancing dampers help in managing air pressures of room. Changes in air pressure can affect air distributions units. Unbalanced air can also cause irritation to the occupants. Balancing dampers have components which can be adjusted to a suitable air pressure.

Air distribution system as stated are very important in any buildings be it a office or a house. We provide the best of service, best products and a wide range of choices for our customers. Contact Technalco Aluminium Engineering Factory the finest air distribution products manufacturer in UAE for your requirements.

Which is better; a humidifier or a diffuser?

While designing an air handling unit, it is important to consider the parameter of humidity. A range of 45% – 55% relative humidity level should be maintained for the comfort. At the times of summer or winter, the humidity level of the air goes down, causing discomfort to the occupants inside. This is where we find the importance of a humidifier in an AC system. The humidity of the air can be increased or decreased using humidifier or de- humidifiers.

There are various types of humidifiers available such as,

  1. Spray Type humidifier, which got a header and spray nozzles that spray water with a pressure of 15 psi.
  2. Steam Grid Type Humidifier, which has holes on its pipe for steam distribution. The water is conditioned to avoid odor discharge to the room.
  3. Steam Pan Type Humidifier, which has a pan and a heating coil to heat the water in the pan. This increases the humidity level of the room.

In HVAC systems, different types of air distribution devices are available such as grills, registers and diffusers. Diffusers are of various types such as,

  1. Ceiling Diffusers

These diffuser types come in round, square and rectangular shapes. They consist of inner cones made of vanes, which are arranged in different directions. A square diffuser is more common for supplying air. They are normally mounted at the center of the conditioned space and provide shorter throw for conditioned spaces with low head space. The air is discharged in all directions through the concentric air passages. The deflecting vanes change the air distribution pattern.

  1. Slot Diffusers

Slot diffusers are mounted on the sidewalls or in the ceiling. Linear slot diffusers are used for supplying both the supply air and return air. They are suitable for large open- spaces.

  1. Jet Nozzle Diffusers

They are suitable for supplying heated and cooled air in large areas. These can be adjusted to make the airflow in any direction. They have advantages for long distance air supply, low noise levels and come in various sizes and colors. They can be installed anywhere like a sports hall, airports, and shopping centers or at indoor markets. Contact Tecnalco for a professional jet nozzle diffuser installation anywhere in UAE.

So what will you prefer; a humidifier or diffuser?

Humidifiers increase the humidity of a room or a building. They are used in medical facilities like ventilators to make patients comfortable. Humidifiers are large and are connected to a HVAC system. It is really helpful at dry or hot climates, when the humidity level goes down.

Diffusers are used as return air vents to make conditioned air in to a space, evenly distributed and with minimum noise. HVAC diffusers reduce the velocity of the airflow from outside and direct to ensure an effective mixing with maximum benefits and less noise. So rather than a humidifier, diffusers can add the benefits of air conditioning for a space.

Tecnalco, Aluminum Technical Engineering Factory has been recognized as the best HVAC services business and we manufactures and supplies air distribution products for more than four decades. We are the renowned supplier of high quality air supplies and duct accessories in the market, offering consumer- durable segments, heat exchangers and parts, OEM segment and air conditioning sets. Our diffuser product range is wide and meets the standard quality along with many other products in the air distribution system. If you are looking for a professional jet nozzle diffuser installation, contact our service for an effective solution at best rates.

How To Choose The Best Sound Attenuator For HVAC Systems

HVAC air distribution products in UAE

The word duct silencer refers to an HVAC system component used to minimize noise transmitted in the ductwork. There are other ductwork elements used to bring down ventilation system noise levels.

It is also known as a sound attenuator. It is installed around noise-generating areas in an HVAC ductwork, including air-conditioning and ventilation equipment like air handlers and fans, fire dampers, and airflow regulators. It is also possible to install duct silencers in visible areas of your exposed ductwork as these are compatible with other ventilation system components.

Tecnalco Aluminium Engineering Factory offers different forms of HVAC sound attenuators. When looking to make the right choice from Aluminium Engineering Factory- Tecnalco in UAE, it is worth knowing the different types the product is available in. Here, we will discuss some of the different forms of HVAC duct silencers and other relating information to help you make informed purchase decisions.

Learn About Sound Attenuator Types

Sound splitters are useful when it is a must to regulate the noise that comes from your HVAC system. The product serves as a noise controller while allowing the air to pass through your HVAC inlet or outlet. It is designed mainly on the basis of the predominant frequency of the noise source in the system. It comes in many different sizes and shapes as well as customization options to fit customer requirements.

According to the form of ducts you have, you could choose from the following options. In addition, you can have the product custom-made as per your requirements and site conditions with the help of Aluminium Engineering Factory- Tecnalco UAE.

Rectangular Attenuators

These forms of HVAC silencers are mainly utilized to minimize the aerodynamic noise that comes from the system. The product is installed in a rectangular HVAC ductwork with vertical attenuating splitters. The baffles comprise a metal frame as well as an infill that absorbs sound. The infill component is a blend of rock wool-based panels that do not catch fire easily. Special fabric with abrasion resistance is used to cover the outer surface of the component and protect the wool material.

Circular Attenuators

This form of HVAC silencer is used in a round HVAC ductwork in the form of a noise-mitigating solution. It offers as much acoustical performance as possible and reduces HVAC system pressure reduction even at a high velocity. Avoiding the requirement for square-round HVAC reducers makes it possible to achieve the aerodynamic performance you desire.

What Else To Consider For The Right Selection

To choose the appropriate form of the attenuator, it is important to think about the permitted flow velocity according to the specific silencer noise and the air flow rate. Another factor to consider when doing business with the suppliers of HVAC air distribution products in UAE is your location type and its specific ventilation system requirements. For instance, for an industrial location, a ventilation system may require superior resistance to chemical substances such as acids.

According to the form of your environment, you may choose silencers made of aluminium or another material. For more help with the selection, you may contact one of the best Aluminium Engineering Factory- Tecnalco UAE.

Choosing the Right Access Panels for Doors

Access doors manufacturers in UAE

When you think about deciding on the installation of an access panel in your home or office, it might not be as easy as it seems. The purpose of the access panels is different from the regular doors in the houses. Access doors manufacturers in UAE can be consulted for the places and choices to install the access panel doors of the right material and color. There are specific locations on which the access codes can be installed.

These doors are versatile and can hide openings on the floor and wall. These doors are insulators for sound and there are a lot many options available with Aluminium Technical Engineering Factory Tecnalco –UAE for your requirements.

The right access panels for doors can be chosen by following these steps:

Step 1: Knowing the need for access door

If you decide the kind of access door for purchasing, it is important to consider the purpose of the door. The experts working for Access doors manufacturer in UAE can decide and suggest the appropriate door for your requirements. The one that fits your place must be able to fulfill all the purposes. The fire-rated access panel is different from the installation of the general access door.

The fire-rated access panel will have an impact on the material and would provide an aesthetic impact on the floor or entire wall. If you’re not sure about the location to install the access panel, the specialists can help you in determining the right choice. You will be able to identify the location of installation and the best access door materials that can meet your needs.

Step 2: Determine the appropriate material

It is important to pick the right access panel that meets all your requirements. The primary purpose of the panel door is important to be understood and the material of the floor or wall is another consideration. There are many places where the external access panel is used from a non-water-resistant material that could result in several issues like mildew build-up, rusting, or mold. The access panel made up of aluminum can prevent corrosion and even bear the external elements. If sound or fire resistance is required, the material to be installed is different. Hence, expert guidance is required for understanding the requirement of the appropriate material to be used.

Step 3: Different Options

The Access doors manufacturer in UAE will give you several options and door types to select from the comprehensive range and detailed options. These options could be plastic, plaster, HVAC, or Fiberglass panels that are installed on the different wall and door options.
The access panels come in a variety of shapes, sizes, colors, and purposes. If you understand the basics, it will be easy for you to choose from the different available options for the most promising options. The purpose of the access door will be primary for selecting from the different available options.

Step 4: Determination of the Location

You need to emphasize the clearance or the space location along with the purpose for the installation of the access panel. The availability of the space is integral for ensuring the frame size and installation of the access panel. You can get assistance from the specialist providing the information based on the measurements and the idea for giving the most suitable choice based on the facts and measurements. The specialists working with Aluminium Technical Engineering Factory Tecnalco –UAE are reliable and give the most promising ideas for picking the solutions that suit the needs fully.

Step 5: Choose only a reputed supplier

This is the most important point. Your choice of the Access doors manufacturer in UAE is vital in selecting and installing the best access panels. There are many options available in the market ranging from fire-rated, insulated, soundproof, and non-insulated access panels. The knowledge of the staff will ensure your confidence in making a selection for the most appropriate stuff. The information about the purpose of the access panels will determine the budget and selection of the panels.


Aluminium Technical Engineering Factory Tecnalco –UAE is the top-rated and the most reliable Access doors manufacturer in UAE. They work professionally for the design and manufacturing of the best doors for different purposes at home or workplaces. They are competent manufacturers and suppliers of access panels and meet the quality standards for the recognized markets across the globe. The engineers are creative and give the trusted solutions for supreme quality products that offer durability and easy maintenance of the doors. If you are confused about the access panels installation at your home, it would be recommended to contact the specialists and they will guide you for the most suitable choice for installing the access doors to the required area. A visit from the technicians would be a great idea to give a kick start to your plan.

Uncontrolled Fire: Avoid the Risks with Fire Damper

What is a fire damper?

Fire dampers can be found in ducts, air transfer openings, and most places where fire-rated constructions like floors, walls, or other fire obstructions are constructed. If fire dampers are not installed, the fire can easily spread, causing serious damage to property and people present in that environment. The reason behind the concept of compartmentation is to stop the fire from spreading to nearby locations. This method helps a lot in limiting the outburst of fire and therefore reducing damage to property and people. So, in a nutshell, a fire damper is a tool used to stop the outburst of fires. If you’re looking for installation, the best aluminium and technical engineering factory –Tecnalco in UAE can help you in making the appropriate decision and install the Fire Dampers most appropriately to avoid the spread of fire.

Why do we need fire dampers?

One of the most harmful hazards is an outburst of fire that has the potential to be even life-threatening. In uncontrolled situations, fire can roll out through ventilation ductwork and can install systems that are efficient enough to control the fire. It is important to furnish your ventilation ductwork with superior and sturdy fire dampers that can stop smoke from outspreading and hence ensure safety for escape way out.
Fire is not the only hazardous thing in such cases. Gases and smoke released from this fire can pose a real threat to the environment and respiratory health of the people present. There are different chemical reactions taking place in our environment and the smoke and gases can be really dangerous for our ecosystem, destroying its balance in many ways. These gases travel at a high rate and even the smaller amounts can be highly fatal for human beings and animals. Fire dampers can be fitted with special seals that will help in restricting fire along with these gases thus, saving the environment and mankind in many ways.

Operation of fire dampers

Fire dampers can be operated in a very simplified way. They are very convenient and systematic as they close the moment temperature rises above the threshold limit to restrict the fire outburst. The fire dampers aluminium technical engineering factory- Tecnalco in UAE makes installation for the special quality of fire dampers fitted with a fusible link that can be selected according to the desired temperature. After this temperature is crossed, the damper automatically closes.

Fire dampers are very versatile as they can be pneumatic, electrically activated, or manually operated. Electric and pneumatically activated dampers are fitted with fusible tube links that release and block operating voltage to the spring return motor, permitting the spring to close the damper blades. They will open automatically on the change of the fire and the motor is re-established with the operating voltage. In the case of spring-operated dampers, a fusible link will release, permitting the spring to close the damper blades. The fire damper requires to be reset manually when the fuse is changed.

Installation of systems by Fire damper manufacturers in UAE

The installation process should be carried out by trained professionals only. Besides the knowledge about the installation, they should know about the usage of the building’s HVAC and the wiring system. Fire dampers require a proper strategy to be fitted. The location of installation for these devices is very specific to make sure the fire dampers close the moment the outburst starts and prevents it from spreading.


Tecnalco is the primary fire damper manufacturer in UAE with the leading distributor of products and giving the best services throughout the UAE. Fire management is important and the company has prospered by raising its technological system with the fire dampers manufacturing in UAE with the advanced systems. The company has its famous brand for distributing the oldest and the largest distribution products in UAE. They focus on meeting all the international standard systems and are widely recognized in the different markets across the globe. The manufacturing unit of Tecnalco is Umm Al Quwain and they offer a consumer-durable segment offering the best HVAC and fire control systems in UAE. The company gives efficient and most reliable products that are the best in all the terms.

Applications of Volume Control Dampers

HVAC dampers help to monitor air volume by conducting systems and regulate them. In the ductwork with low to medial airflow velocity, control dampers are normally mounted. It can be used to produce positive shutdowns and also to monitor HVAC low-leakage systems automatically.

Dampers are often used in zoning and zone control systems. Air dampers are used to regulate material movement in industries that move gases and liquids through pipes and pipes.

Air Control Dampers come in a variety of sizes and shapes, including square, circle, and rectangular backdrafts, and it is critical to choose the right one for the task. The position, configuration, and function of a damper decide the form of the damper. Zero leakage bubble-tight dampers, volume control dampers, motorized volume dampers, and so on are examples of such dampers.

In this blog, we will discuss volume control dampers.

The Volume Control Damper is a device that regulates airflow through an air duct. Complete manual quadrant or motorized actuators are available with this unit. Volume Control Dampers are ideal for systems requiring air control and can be made of galvanized steel, stainless steel, or aluminium. If you are familiar with the characteristics of volume control dampers, it will be simple to choose from the huge list of dampers offered by VAV manufacturers in the UAE. The size of the volume damper and the area where it will be installed are often the most important factors to consider when selecting one.

The Volume Control Dampers help regulate the volume of airflow to the other sections of the device. These dampers can be fixed within the duct itself and can be manually or automatically. In determining individual HVAC technologies and entire systems, an understanding of the interdependence of HVAC technology between them, as well as other electric loads and maintenance and operational practices is fundamental. As with lighting, HVAC systems have broad and varied technology and potential configurations.

These dampers can be immovable or fixed within the air conditioning system. The volume control dampers’ doors can be opened and closed manually to change them. The ash-pan is also accessible through the volume damper, which allows for the removal of accumulated clinker and the removal of ashes.

From their wide range of products, motorized volume control damper suppliers can fabricate and supply a number of sizes and styles of quantity dampers. Volume Control Dampers made of stainless steel and aluminium sheet are recommended because they have a higher inherent resistance to corrosion and abrasion.
They are ideal for places where there is a lot of moisture and hydration because of the material and construction.

These dampers are simple to adapt to the surrounding temperature and humidity, making them effective at reducing power consumption. The use of the proper volume control damper lowers energy bills. They are effective at lowering the pressure in zone controls, which increases HVAC performance.

Volume control dampers are available for either parallel or opposed blade operation, with each design having its own set of characteristics depending on the type of operation. Parallel blade dampers are designed for all blades moving in the same direction and parallel to one another. When the damper has two positions, open and close, the parallel blade orientation is used. Opposed blade dampers are used on dampers that modulate airflow and are built with blades that pass in opposite directions. When it comes to the location of the dampers within the air conditioning system, they are either fixed or immovable.

The door of the volume control dampers can be opened or closed manually. They even make it possible to empty the ash-pan and dispose of the clinker that has accumulated. The volume control damper’s primary role is to:

  • Control airflow inside a duct.
  • Aid in the maintenance of a set temperature. A volume control damper is important for the heating and cooling of the building in the HVAC system. It controls the temperature.
  • Maintain the necessary pressure.

The dampers consist of several plates, blades, axles, coils, blade fasteners, and other components adapted to the particular application of the damper. The damper’s actuator is used to control the damper’s location using signals from the building automation system, thermostats and controls, pressure switches, and relays. The capacity of the actuator to sufficiently open and close the damper, as well as the amount of torque it can provide, are used to determine which actuator to use. This is usually determined by the following factors:

  • Dimensions of the damper.
  • Air velocity through the damper.
  • The static force acting on the damper.
  • Form of damper blade – parallel or opposed

Always check the seller’s certification label, positive customer reviews, and company credibility before purchasing a damper. Leading volume control damper manufacturers, such as Technalco, are known for producing high-quality products at a reasonable price.

Technalco aluminium engineering factory is a leading volume control dampers manufacturer in UAE of HVAC products and a variety of sheet metal components. We have grown to become one of the best metal component suppliers.

In a real sense, our business has achieved manufacturing and trading convergence. We not only have the manufacturing capability to provide OEM service, but we also have a large supply network to provide one-stop service.

As a result, we have established a diverse product line and are able to supply our customers in a timely and efficient manner.

The foundation of our business is quality. Our services as being a leading VAV manufacturer in UAE can be used by any interior and construction firm, architects, designers, hardware stores, and even small trading companies. We recognize the significance of deadlines and requests. As a result, we are well-positioned to deliver high-quality products that will enable you to keep your commitments.

Industries & Building is dedicated to environmental protection. We have introduced strict policies across the board to ensure that we are reducing our carbon footprint and that our vendors are complying with environmental regulations.

How do you calculate airflow through sand trap louvers?

sand trap louver installation

The fire dampers are key passive fire safety devices and are used in the sector of air conditioning, ventilation, and heating. Generally, a fire damper operates when heat from a fire causes a room’s normal temperature to increase by 165°F, i.e., it is designed to close heat automatically. The fuse connected to the damper melts allowing the door of the damping door to close. In particular, they are situated in a duct at the intersection of the fire barriers in building zones, such as divisions at the point of penetration of the duct, to maintain a wall or floor fire rating. The fire damper guarantees the safety of the current lock.

The fire damper protects the current barrier, preventing fire penetration until temperatures exceed the barrier’s fire-rating level. Its main purpose is to prevent fire from spreading from one side of a fire-rated barrier to the other. The damper is built to withstand high temperatures for as long as possible, and it is manufactured to a high standard of integrity.

When room temperatures reach about 165 degrees Fahrenheit, the fusible component in the fire damper melts, allowing the door to shut. This helps to keep the fire from spreading and causing as much harm as possible. Property owners should be aware that rooms that are regularly heated to 165 degrees or higher would need fire dampers with higher melting point fusible connections.

By preventing the spread of fire by heating, ventilation, and air conditioning ducts, the damper aids in preventing a fire from spreading throughout the home. They also help prevent smoke from spreading through the ductwork in the event of a fire.

In a residential environment, there are two types of fire dampers to choose from. Dynamic and static fire dampers are two types of fire dampers.

Dynamic Fire Dampers

These dampers are built with a spring-loaded design and continuous fan use as vertical barriers. The air pressure generated by the ventilator helps to unlock a loaded door system, enabling the ventilator to stay in operation quickly.

Static Fire Dampers

In contrast to dynamic fire dampers, static fire dampers are installed as horizontal barriers with a curtain-like structure. If a device with static fire dampers is triggered and the door of the damper is decaying due to the weight of the damper, the HVAC fans are set to turn off. Whatever these systems are in use, owners of the property shall contact HVAC technicians to inspect the dampers and remedy any harm at the earliest opportunity.

Fire dampers should be checked and maintained on a regular basis due to their vital safety features. On models with fusible connections, all that is needed for fire damper maintenance is to check that the fusible connection is still present and not covered in grime and dust. Fire dampers with circuits should be tested more frequently. Even if the tests are positive, the dampers should be physically inspected on a regular basis.

Sand Trap Louvers Filter

Sand trap louvres are normally located at the first point of the air intake and are an essential part of any air handling device. Sand trap louvres, as their name implies, prevent sand from accessing the air intake unit or equipment rooms, preventing damage to the equipment’s moving parts. In desert or sandy areas, they are also used for ventilation in parking lots, warehouses, generator rooms, and fan rooms, among other places. In the presence of high dust concentrations, it has a high degree of sand and large dust particle separation. The sand trap louver installation is maintenance-free thanks to the vertically arranged blade parts and holes for sand drainage. It is made to separate big sand and dust particles from the airstream at low speeds, preventing unnecessary dust loading in traditional filters. It is not meant to be used in place of traditional filters. Sand trap louver installation specifically to remove sand and dust from the air. It is efficient and appropriate to use for air handling unit ventilation and inlet ducts. Since it comes with a complete aluminium extruded profile unit, the assembly is corrosion-resistant and suitable for different weather conditions. For sand trap louver installation, filters and dampers are available as options.

We need the means to include the free area and First Water Penetration in a meaningful way to better assess a louvre’s capacity. Since the ultimate goal is to get maximum air via the louvre, we want to determine the permissible air volume through the louvre (cubic feet per minute or cfm). The AMCA Standard 500-L Laboratory Methods for Air Louvers Testing for these concepts are protected by the test methods.

The following example compares two louvres with different performance characteristics for a 48″ wide x 48″ high wall opening:

Louver Free Area (percentage)Free Area for 48″ x 48″ (square feet)First Point Water (fpm)
1 45%7.21190
2 53%8.5750

We could conclude that Louver 2 is better than Louver 1 for getting more air through the louvre because it has a larger free region.

LouverFree Area (percentage)Free Area for 48″ x 48″ (square feet)First Point Water (fpm)Design Velocity (fpm)Volume of Air (cfm)
1 45%7.211908936426
2 53%8.57505634781

For a 48″ wide x 48″ high wall opening, Louver 1 has a 45 percent-free space. The gross free area is 7.2 square feet (45 % x 16 square feet of wall opening). For this louvre, the tested First Point of Water Penetration is 1190 feet per minute-free area velocity. We should account for any difference in the airflow through the louvre by using a safety factor – we have selected a 25% safety factor. With the safety factor, the geometry velocity will be 25% less than 1190 fpm, or 893 fpm (1190 x .75). By multiplying the louvre-free area by the design velocity, we can now calculate how much air can be safely passed through the louvre ( 7.2 sq ft x 893 fpm). Louver 1 has a volume of air of 6424 cfm as a result.

When we do the same calculations for Louver 2, the result is just 4781 cfm (with a 25% protection factor). The amount of air passed into the same opening size is 25% lower. Louvre 1’s a safer option because we can deal with the pressure drop at higher airflow rates!

The majority of manufacturers list the airflow resistance of their louvres on their websites. Based on the blade and frame shapes and angles, each louvre will have a slightly different resistance.

Most louvres do not deviate significantly from the graphs, unless they are built for extremely high air velocities, such as wind-driven rain louvres. We can measure the resistance for each louvre at the design velocities and see that:

Louver 1 – at 893 fpm-free area velocity, will create 0.090 inches w.g. of static pressure

Louver 2 – at 563 fpm free area velocity, will create 0.055 inches w.g. of static pressure

The two values must be suitable to the design of HVAC systems, and our Louvre 1 is the best option, even if the area is less free of charge. For most applications, a reasonable thumb rule is to remain below 0.2 inches w.g. static pressure.

Technalco, one of the leading HVAC air distribution products in UAE, achieves work that goes beyond sand trap louvre installation thanks to its more than 100 professional operators and fabricators. In all Technalco products, the method of quality control (QC) has the highest priority. To ensure it, a Quantity Assurance (QA) plan is introduced, in which a QA officer inspects each component during development and again before delivery. During all phases of the process, a quality assurance checklist is followed.

To advance our production methods and retain high-quality products, the design and fabrication team is constantly developing and improving. As being a leading service provider of sand trap louver installation adheres to the Continuous Improvement Process (CIP) by continuing to educate ourselves, learn new technology, and apply best management practices.

Our steady growth can be attributed to the practical approach of the top management. At present, HVAC air distribution products in UAE are offered by us with a highly qualified workforce led by an experienced team of managers and engineers, ensuring that quality-manufactured goods are delivered to suit our clients’ busy schedules.