Specification facts to know about Air curtain manufacturers!

Air Curtains Specification

What makes good air curtain?

An Air curtain technically, is a fan-powered air device that automatically creates an invisible air barrier wherever it is being installed. It is mostly used over the doorway to separate efficiently two different environments and it makes this separation without limiting or interrupting the access of the people or vehicles on the premises. Air curtain manufacturers make sure that they are highly operational and progressive.

There are many Air curtain manufacturing units and their worldwide users but not all are fully aware and familiar with its usage and specifications. Thus, we have listed some characteristics and tips that all users should keep in mind to choose the right product.

  • The first and foremost important thing is the height of the door
  • Choose an air curtain according to the width of the door
  • The location of the building should be the determinant factor for the level of protection needed against weather conditions
  • Use air curtains if the focused building has several doors in the same area,
  • If the building has several stories connected by escalators/stairs
  • Air curtains are best to measure pressure differences between the inside and outside of the building
  • Door characteristics also matter to choose an air curtain, if frequently closing and opening, then go for sensor based device, or else manual.
  • Characteristics of the ventilation and air conditioning installation
  • Voltage and electrical power availability also affect the performance of air curtain
  • What type of business, location, and office equipment are there is also vital to get the appropriate product.
  • The fitting style of an air curtain is also responsible for its performance such as free hanging or recessed, horizontal or vertical installation, heated or unheated, etc.

Air curtains and their manufacturing specifications

However, there are different sorts of air curtains available as per the industry usage. So, herein we have mentioned some of them for your information and knowledge.

Types of Air Curtains:

There are majorly four broad categories of air curtain to cater to the different usages and requirements of the customers. They are as follows:

  • The very first type of Air Curtain with a velocity of 15-17 meters/sec, the basic usage is to create only a thermal barrier.
  • Another one is Air Curtains with a velocity of 17-19 meters/sec. Their primary purpose is to control dust, pollution, and insects in varying degrees.
  • The next type of Air curtain with a velocity of 20-22 meters/sec and they act as a device that controls dust, pollution, and insects in varying degrees
  • Special Purpose Velocity Air Curtain has 26 meters/sec & above and it is specifically required where a high degree of pollution and insect control is needed. They are perfect for industries such as canning, bakeries, dairies, pharmaceuticals, distilleries, and cold storage.

Some Air curtain manufacturers in India are:

  • Mitzvah

Mitzvah Air Curtains are duly designed in the most professional ways to provide uniform air with minimum noise and no wobbling. Our products are thoroughly tested at labs and meet the highest quality standards to provide customers a trouble-free service& experience. The Air Curtains mostly do not require any post services if the usage is clear and adequate. In order to meet the low noise requirements for conference rooms, operation theatres, and computer rooms among others, Air Curtains also come in acoustically treated models to meet such requirements. The Air Curtains are especially suited to meet the requirements of hotels, restaurants, fast food centers, distilleries, and pharmaceutical industries where the entry of mosquitoes and flies needs to be curbed.

2)    Mitsubishi

Mitsubishi Electric India Pvt. Ltd. was effectively incorporated in 2010, and since then they strive for manufacturing the best products among other competitors. They focus on realizing the potential and needs of customers to fulfill the requirement of Indian households. Mitsubishi Electric is one of the top Air Curtains Manufacturers that are perfect to maintain a comfortable, clean and hygienic environment while also saving energy with a quiet, efficient, and powerful operation.

3)    Euronics

Euronics is a major Exporter, Supplier, and Air Curtains Manufacturer in New Delhi. Air Curtains have now become a necessary part of air-conditioned areas as they act as the premier thermal barriers. They are primarily to prevent dust and pollution, but they are capable of giving additional services as well. Air Curtain is custom-made units given as per different requirements. The cabinets of these products are made of cold rolled mild steel sheets which are duly powder coated or are made with Stainless Steel as per the usage &requirement. Whereas the blowers are made of high-quality aluminum/plastic fiber both statically as well as dynamically on computerized digital balancing machines.

4)    SudhaiAirTech

Sudhai Air Tech has been one of the best air curtain manufacturers and projector companies that provide the most efficient, cost-effective, reliable technical products in the market.

They have headquarters in Mumbai, Maharashtra. The company not only manufactures products but also offers expert advice on air curtain projects, system design, supply, service, after-sales support, etc.

Their wide-ranging products cover everything from economical air curtains used in medium size shops, complexes &doorways to large industrial units for warehouses and workplaces. The products are sold in various color options beautifully designed &crafted products for prestigious buildings and stores. Sudhai Air Curtains stand out from other products as they have slim, simple mounting, high power & durable airflow.

Air Curtains Supplier in India- Things to Consider Before Selecting a Vendor

 

Air Curtains Supplier in India

With air curtains supplier in India, Selecting a vendor is one of the most crucial tasks before selecting an air curtain. A reliable vendor will understand your needs and help you choose the air curtain that is best suited to your requirements. There are various important factors listed below that you must consider before selecting your vendor:

  1. Manufacturer: You should know the original source i.e. from where your vendor procures the machines. The manufacturer must be a reputed one in the field and enjoy great goodwill in the market.
  2. Experience: To a great extent, the experience of the vendor decides his reliability. Better experience implies a better understanding and knowledge of market conditions and customer requirements. Therefore, it becomes imperative to analyze the experience of the vendor.
  3. A number of installations: Choose the vendor who has already served for a number of years. Get to know the number of installations done by them within the country and around the world (if any). A large number of installations would imply better knowledge and a better understanding of the field.
  4. Technically Equipped: Their production unit should be technically advanced in terms of working and delivery. It will provide a better breakthrough in the competitive market. The vendor should be able to guide you on various kinds of flow patterns and workability and should be able to customize a solution whenever required.
  5. Warranty and part Availability: Many vendors commit to a warranty that is beyond their scope. As an international standard, a manufacturer should be able to provide support for all the parts and make them available for a minimum tenure of 10 years. Generally, traders overcommit and shed their responsibility when parts are needed.

What should be the Right Velocity AsPer AMCA/NSF Guidelines

Everyone in the industry struggles with the above question and many times, engineers out of their experience or some thought specify velocities at different points, either on top of the door or on the floor, etc.

The Air curtain Manual by AMCA Specifies the right velocity parameters. The same is mentioned in NSF Guidelines also.

The velocity specifications as mentioned in AMCA Publication, 222-08 Application manual for Air Curtains, are as follows:

Application Manual for Air Curtains; Section 8.6.1.2

8.6.1.2 ANSI/NSF37- Air Curtains for Entranceways in food and food service establishments. The NSF standard establishes criteria for ACU air performance, construction, design, and material type. An ACU construction that complies with this standard is considered by the food service industry to provide effective flying insect protection to an entryway by deterring flying insects from entering through the opening or nesting in the ACU. These criteria can be summarized into basic principles that are intended to create a clean and healthy environment.

  1. Laboratory Methods of Testing Air Curtain Units for Aerodynamic Performance Rating: This AMCA standard defines the test methods that can be used to generate data for the typical types of air curtains performance. This data can then be used to compare different models for aerodynamic performance. Note that the data generated from the tests described in the standard does not define an ACU’s relative effectiveness.

If the data is measured and generated from an AMCA accredited laboratory, the product can be licensed to bear the AMCA seal (if applied for) under AMCA 211, Certified Rating Program- Product Rating Manual for Fan Air Performance. The AMCA Seal represents the fact that the ACU has been independently tested by a third party, adding credibility to manufacturer ratings.

The performance data generated, as defined by ANSI/AMCA 220 and simplified here, are:

  • Average Outlet Velocity- The mathematical derivation of a velocity flow rate by dividing the air volume flow rate by the air curtain discharge area. This value should be used with outlet velocity uniformity to compare different ACUs.
  • Velocity Projection- The average of the peak velocities measured along the ACU discharge nozzle at predetermined widths at specified distances away from the ACU. These values can also be used to determine velocity uniformity at said specified distance.
  • Outlet Velocity Uniformity- This is a measure of the consistency of the discharge velocities across the ACU width expressed in a percentage determined by a standard deviation method.
  • Airflow Rate- Physically measured by a recognized air volume test chamber using ANSI/AMCA 210, Laboratory Methods of Testing Fans for Certified Aerodynamic Performance Rating.
  • Power Rating– This is the electrical power actually consumed by the entire unit(in KW) during the Air Volume Flow Rate; not to be confused with the mechanical energy equivalent to the unit horsepower.
  1. Air Curtains Entranceways in Food and Food Service Establishments: The NSF standard establishes criteria for ACU air performance, construction, design, and material type. An ACU construction that complies with this standard is considered by the food service industry to provide effective flying insect protection to an entryway by deterring flying insects from entering through the opening or nesting in the ACU.

These criteria can be summarized into basic principles that are intended to create a clean and healthy environment. The air performance defined in this standard is geared toward protection from flying insects.

The opening types are defined by three categories:

  • Customer Entryway
  • Service Entryway
  • Drive through Window

Each type has its own minimum performance requirement.

  1. Customer Entryway: The Customer Entryway test requires a maximum mounting height declaration and a minimum air velocity of 3.05 m/s (600fpm). Velocities are measured within 200mm (8 in.) deep by ACU nozzle width wide area broken into 50mm*150 mm (2in.*6in.) grids, 0.9m (3ft) from the floor.
  2. Service Entryway: The service entryway test requires a maximum mounting height declaration and a minimum air velocity of 8.15m/s (1600 fpm). Velocities are measured within a 75mm (3in.) deep by ACU nozzle width wide area broken into 75mm*150mm(3in.* 6in.) grids, 0.9m(3ft) from the floor.
  3. Drive-through Window: The drive-through Window test requires only a minimum air velocity of 3.05 m/s (600 fpm), 1/3 the distance of the vertical opening above the service window countertop. Velocities are measured within a 200mm (8 in.) deep by ACU nozzle width wide area broken into 50mm * 150 mm (2 in.*6 in.) grids.

The design and construction requirements are intended to prevent the nesting of vermin, the accumulation of dirt, debris, and moisture; and to provide accessibility for servicing, cleaning, and inspection.

The material requirements are intended to ensure that the equipment is resistant to penetration from vermin and wear with the respect to food safety (i.e., the effect of food, heat, refrigerants, cleaning, and sanitizing compounds).

Lastly, ACU units can be tested, certified, and listed to standard ANSI/NSF 37 by nationally recognized testing laboratories and certifying bodies that have a food service program. Some of these agencies include NSF and the corresponding NSF Mark, UL.

Technological Edge of Air Curtains Manufacturers in India

Air Curtains Manufacturers in India

Classification of Air Curtains manufacturers in India Based on Flow and Fans Type

Air Curtains can be mainly classified into two types:

  • Recirculating and
  • Non-recirculating Air Curtains

Recirculating Air Curtain gathers and returns the discharged air in the air curtains inlet. The process is continuously repeated with a plenum built into the door that connects back to the inlet of the air curtain via the duct.

Non- recirculating Air Curtain captures fresh air from the environment and discharges it from the unit. Since the same air is not recirculated back, these air curtains can be termed non-recirculating air curtains.

Recirculating air curtains are more efficient than their counterparts but still, non -recirculating air curtains are more popular. The majority of installations today are non-recirculating due to their cost efficiency and ease of installation.

Directions of Flow:

There are 3 possible directions of blow-out air streams, both for recirculating and non-circulating curtains:

  • Horizontal Mounting from top to bottom: Horizontal mounting is the most common Installation and most economical way to mount an air curtain. Here, the air curtain is installed horizontally across the top of the opening and the air is discharged from top to bottom of the door.
  • Vertical Mounting from left to right or right to left: Here, the curtain is mounted perpendicular to the ground and the air is expelled from left to right and right to left. Vertical discharge mostly requires mounting curtains on both sides of the door which adds up the total cost of installation. Normally, this kind of installation is required in places with very wide or high door openings.
  • Horizontal discharge from bottom to top: This installation is not very common and is specially used in the case of hot oven applications. The curtain units require special frames and are mounted at the door level and the installation is carried out under specialized guidance.

Type of Fans

Air Curtains can be designed and manufactured with various types of Fans. The three most commonly used fan types are:

Centrifugal

Most air curtain units employ centrifugal fans that use a forward or backward-curved impeller. Centrifugal fans make use of blades to drag air into a circular motion. The pressure of an incoming air stream is increased by blades mounted on a circular hub and alters the direction of the outward flowing air, usually by 90 degrees. Centrifugal fans move air radically and outwards through the vortex housing. Centrifugal fans provide a stronger and more stable air flow than axial fans and therefore, need a higher power input.

Axial

As the name suggests, an axial fan causes air to flow through it in an axial direction. The fan blades rotate around an axis and draw air in parallel to that axis. In other words, the air flows axially in and axially out which forces the air out in the same direction. The fan creates a pressure difference that forces flow through the fan.

Axial fans create a large volume of airflow, but the air flows they create are of low pressure. Therefore, these fans need a low-power input for operation. There is a wide range of axial flow fans. It may vary from low or medium-pressure fans to high-pressure fans. Because of the3 cool and low-pressure high-volume air flows they create, axial fans are best suited for many general-purpose applications.

Cross Flow

Cross-flow fans are derivative fans and comprise a housing with a rear wall and a vortex wall. Within that housing, there is an impeller surrounded by forwarding curved blades. When the air moves through a cross-flow fan, it flows transversely and passes through its blades twice.

In cross-flow fans, the air enters in a perpendicular direction to the motor shaft and is detected by the fan blades and expelled. These fans have a long, rectangular shape and use either an alternating current (AC) or direct current (DC) motor. These fans are also referred to as tubular fans or tangential fans because of their long and narrow shape and airflow pattern. Unlike centrifugal fans, in cross-flow fans, the air flows through the fan itself rather than through an inlet. They provide a high-pressure coefficient and are preferred for their low noise. The most common application for them is a split air conditioner.

All the above types of fans have their own advantages and disadvantages and can be used for different kinds of applications.

Mitzvah manufacturers and suppliers of air curtains keep in mind the technological edge of air curtains. The manufacturer of best quality Air curtains that will help you to save money and clean your environment. If you are looking to buy air curtains manufacturers in India, then go through with Mitzvah.

Here you can find affordable air curtains price!!

Air Curtain Benefits- Save Money & Protect Your Environment

Air Curtains Benefits

Mitzvah Air curtains manufacturers help you save money and protect your environment. The air curtain is a multifunctional product that can be used in different areas. It is a versatile machine capable of solving all kinds of problems we face every day.

Air curtains have many advantages, which is why they are widely used in many industries and different fields. Air curtains come in different sizes and can be installed in different ways to achieve the desired effect. Installing an air curtain system in your business is the best step to solve many of your problems.

There are many benefits of installing commercial air curtains in your work area.

5 Major Benefits of Air Curtains Include:

  1. Environmental separation: The air curtain forms an invisible barrier, preventing the flow of air to the other side. Outdoor environments often have a variety of unpleasant odors and pollutants. Unpleasant odors and exhaust gases are especially difficult to avoid in areas close to industrial sites, waste disposal sites, or sewage treatment plants. Air curtains help maintain a comfortable environment within a facility by preventing the entry of unwanted dust, outside odors, and pollutants.
  2. Temperature control: The temperature difference between the two areas will naturally generate air exchange between these two areas. Warm air exits the top of the doorway and is replaced by cooler, denser air entering from the bottom. Greater temperature differences just result in higher air leaks and energy losses. Air curtains prevent this exchange by protecting the conditioned environment in different areas and helping to control the temperature.
  3. Save money: We all know that changing the temperature costs a lot of money. For example, if we were to introduce hot air into a furnace, we would need burners and fuel. Likewise, to cool the air, we need an AHU (Air Handling Unit), a cooler, or a freezer. Whenever this conditioned air is wasted or lost, it results in an increase in our overall cost. By providing an effective barrier to conditioned air, air curtains provide an ideal solution that can save you money.
  4. Insect and Pest Control: Flying insects and pests can be a nuisance to anyone. The presence of these insects in an area can lead to food contamination, unhealthy conditions, and other related problems. The powerful airflow created by the air curtain prevents these harmful pests and other flying insects from entering the premises, thus maintaining hygienic conditions for everyone.
  5. Work in extreme conditions: The air curtain creates an invisible barrier that isolates different temperature zones without hindering the movement of people and products. Many industries use heaters or furnaces, while others use cold rooms and other cooling systems. Air curtains work in both cases, effectively sealing the area and preventing air exchange and energy loss.
  • Freezers / Chillers / Cold Storage: Air curtains are great for cold storage because they can significantly reduce energy loss by keeping cold air in and hot air out when doors are open and in use. Air curtains are known to reduce losses by up to 90%.
  • Hot furnaces: Air curtains manufacturers have proven beneficial for industries that use hot furnaces and industrial conveyors. They can be used to contain extreme heat and contain hot air inside industrial conveyors or furnaces. This results in savings of up to 40% of the total kiln fuel consumption.

FIND ADVANTAGES OF BUY AIR CURTAINS FROM MITZVAH

Buying Air Curtains

The air curtain – is one of the types of innovative equipment designed to prevent heat loss of a building through the planes of door or door openings in places with high traffic: in industrial shops, public and residential buildings, shopping centers, warehouses, and restaurants. In other words, it device, also known as an air door blows a controlled stream of air across an opening to the other side to create an air seal. While air curtains are not the same as air conditioners, they are highly effective at maintaining the interior temperature. They are sometimes referred to as “invisible doors” as they create an invisible barrier between inside and outside environments. Sometimes referred to as fly fans. This seal separates different environments while allowing a smooth, uninterrupted flow of traffic and unobstructed vision through the opening. The air stream which is let out from the machine at whatever point the entryway opens causes no limitation in development. Buy Air curtains at a range in price depending on features. Air curtains are available with horizontal or vertical installation, this is determined depending on local conditions.

What does the air curtain do?

An air curtain or air door is a device that prevents air or contaminants from escaping from one location to another. A typical air curtain design is a fan located above the building entrance, pointing downwards. Well, if you’re an engineer, site manager, or architect, you probably don’t have everything you need to know about the benefits and prices of air curtain systems.

FUNCTIONING

Generally, the air in the curtain entering through the inlet grille, sometimes with filter functions, is compressed by internal fans and forced through an air outlet, which is directed at the open doorway. The filter protects the interior components (heat exchanger, fans, electronics, etc.) from dust and particles. The fans of the air curtain can be direct or belt-driven. The most frequently used types are centrifugal, axial, and cross-flow some air outlets and/or lamellas can be adjustable to increase the performance of the air curtain according to each situation. Most air curtains are installed horizontally, across the top of the opening, and the air is expelled from top to bottom of the door. Vertical air curtains can be installed on one or both sides of the door.

Horizontal installation integrated on the floor is the most effective in thermodynamic terms and at the same time the most expensive one to install and problematic where public pedestrian traffic crosses the doorway for obvious reasons. So it’s only used in some special industrial applications. Types of air curtains: non-recirculating or recirculating. A non-recirculating unit discharges the air to the environment. Otherwise recirculating collects and returns the air from the discharged air. Recirculating air curtains are more efficient but the majority of installations are non-recirculating due to lower costs

In this blog, we’ll discuss the five main benefits of air curtains.

1) Air curtain saves space: First, the owner saved a lot of electricity by installing an air curtain, an energy-saving device. But air curtains can also reduce capital costs and maximize footprint. The Coz Air Curtain is easy to install and sits elegantly on top of the doorway.

2) These devices facilitate your employees:  Air curtains use less additional heat than other heaters, help improve employee comfort, and reduce sticking by providing drier floors in entry areas during inclement weather. This helps keep traffic flowing and improves hygiene by reducing insect intrusions and keeping dust and odors out.

3) Air curtains help you save your energy: Although the air curtain consumes electrical energy during operation, it can save net energy by reducing the heat transfer between the two rooms (this heat transfer occurs by mass transfer when the air in the room mixes at the edges).

A closed and well-sealed door is the ultimate solution to reducing energy loss. However, the benefits of physical doors are lost when your business has to deliver items to passersby entering and leaving for most of the day.

The task of the air curtain is to cool and heat the space where many customers enter which actually leads to a way of saving energy in many ways. Air curtains keep doors open late, inviting your potential clients into your center from the street. These devices also allow a large amount of conditioned air inside the building so that it cannot escape to the outside.

Air curtains and physical doors can be used together. When the solid door is open, the air curtain opens and minimizes air exchange between the inside and the outside.

Additionally, by reducing heating or air conditioning costs in a building, air curtains can pay for themselves within a few years.

4) Ease of Access and Design Flexibility:  Air curtains provide an invisible barrier without compromising the building design and provide concealed protection from external elements.

Additionally, air curtains are particularly effective in areas where the door is open for extended periods of time and the door needs to remain open throughout the day. These devices can then even be used above entrances that must remain open for operational reasons. In addition, air curtains are not only useful at the main entrance of the company but also installed at the entrance of car parks and food preparation areas, etc.

5) The payback period for air curtains is very short:  The combined energy and building savings of air curtains add up to a potential payback period of one to three years compared to more permanent and expensive buildings. in conclusion: Well, we want you to know all the essentials about buy air curtains.

Additionally, Mitzvah – a company of air curtains manufacturer and supplier in India sells high-quality air curtains and has been operating for a long time. Also, if you would like to analyze the prices and other characteristics of air curtains associated with a reliable business, visit the Mitzvah website. Well, you have a chance to buy air curtains that you need. That’s all for today. Also, keep visiting our website for more effective blog posts.