HVAC Duct Fittings, Sheet Metal Duct Fittings Supplier

HVAC Duct Fittings,Duct Fittings

HVAC Duct Fittings

Superaircool HVAC Duct Fittings, sometimes called Ductwork Fittings, are essential components among the ductwork components for connection or transitions, as well as protection and decoration for decoration and protection. Superaircool offers HVAC Duct fittings to fit all shapes and kinds of ducts. These include round Duct Fittings(Round Ductwork Fittings), Rectangular Ductwork Fittings, Oval Duct Fittings, Ductwork Rectangular to Round Transition, and flexible Duct Fittings.

Superaircool HVAC Duct Connectors are suitable for the entire range of transition and connection accessories to HVAC Ductwork. The products offered comprise a Duct Connector, HVAC Elbow(or Duct Elbow), Duct Reducer, Duct Boot, Duct Splitter, Plenum Box let’s go Tap Flexible Duct Connector, Line Set Cover, Aluminum Foil Tape and many more. Duct accessories like the Quick Release Clamp, Hose Clamp, Wire Hose Clamp, Clamps for Narrow Band Clamps, Hose Clamps, Stainless Steel Hose Clips, and many more.

They are commonly used in round and rectangular ducts and oval ducts and the transitions from rectangular to round. Certain parts are universal, like the Superaircool Flexible Duct Connector , which can be manufactured in various forms to accommodate all kinds of ducts.

Furthermore, Superaircool HVAC Duct Fittings provides products that protect all types of ductwork. These include the Insulation Shield and Stainless Steel Jacketing to provide insulation. This Insulation Protection Shield is a semicircle-shaped coated steel or galvanized.

With the assistance of a hanging system, the Insulation Protection Shield can provide adequate protection to the insulation from adverse conditions such as snow, rain, and high humidity. Stainless Steel Jacketing for Insulation is a similar way that covers the insulation layer with a tight.

Superaircool Stainless Steel Jacketing for Insulation is an open tubing of stainless steel, either 304 or 316L. It comes in the overlap type, as well as the clips. It is easy to wrap your pipe that is insulated by it and then fix it using the Hose Clamp. Superaircool Stainless Steel Jacketing for Insulation is a perfect way to protect your line from mechanical forces or adverse weather damage.

In addition, Superaircool HVAC Duct Fittings can also assist in hiding the pipes that are exposed, like those that are a PVC decoration pipe Kit. It includes PVC covers, PVC T joints, PVC Wall Covers, etc. It covers all of your air conditioning pipes as well as other exposed pipes as well.

With various components, you can use the various forms of pipe and the pipes that run through walls and ceilings. Once you’ve set up these PVC Decoration Pipe Kit, the entire area will appear neater, cleaner, and much more comfortable to live and work in.

In addition, Superaircool also provides all types of HVAC dampers for ducting systems, including common Louver Damper, Motorized Dampers, Fire Dampers, Volume Control Damper, Back Draft Damper, Parallel Dampers, Butterfly Damper, Opposed Blade Damper, Round Backdraft Damper, Balancing Damper .

Additionally, based on various pipelines, Superaircool provides different sizes to satisfy your needs. Superaircool is home to over 1000 famous projects completed at home and in foreign countries, including Shanghai Disneyland, Shanghai Disneyland National Exhibition and Conven motion Center. We’ve been responsible for the entire HVAC installation.

This will allow us to get an understanding of your HVAC projects. Additionally, our sales team will provide 24/7 support to ensure your products and projects are properly maintained in our.

HVAC Duct Fittings are among the most challenging to manage for most HVAC projects, especially in renovation projects. Sometimes, you’ll have to use identical HVAC Duct Fittings to replace them.

This is why it could be a challenge to examine every aspect. Superaircool offers an expert technician team that can be sent on your behalf to help you solve your issue. They will take measurements of every detail and create the drawings on your location to ensure every ing is in order.

We also provide semi-finished products that can be delivered from our factory to your place of business. Our workers can perform the work on your site, including welding to install the HVAC equipment quickly. This significantly eases the burden of your job and speeds up the pace of your project.

hvac duct fittings, sheet metal duct fittings supplier
hvac duct fittings, sheet metal duct fittings supplier

HVAC Duct Fittings: The Ultimate Guide

What are the Standard Duct Sizes?

The most common sizes for rectangular ducts vary from 35*40 inches up to 3 *7 inches, based on the requirements for airflow in cubic feet.

  • The diameter of circular ducts can vary from 4.9 inches to about 41 inches.
  • It also depends on the amount of airflow per cubic foot.

What is HVAC?

HVAC is the acronym for Heating, Ventilation, Heating, and Air conditioning. It is a method to ensure adequate airflow in both vehicles and the indoors and thermal comfort.

What is an AC Duct?

AC ducts are conduits that transfer and draw air from the room to ensure the air is properly conditioned.

What are the reasons you require HVAC Ductwork Changes?

HVAC transition of ductwork aids in changing the appearance of the ductwork. In other words, change your ductwork from a rectangular to a circular shape. It can also be used to change the ductwork’s dimensions from one with a large diameter to one with a smaller one .

What is the difference between the duct transition and duct boot?

Duct transition in ductwork assists in changing the size or shape of the ductwork. For example, if you’re switching to a round duct, you must change; you can switch to round ductwork. In contrast, the duct boot can be used to alter the direction of the ductwork.

Other than The Duct Transition, does Superaircool Have Other Designs?

It is true that Superaircool also offers different designs for duct transitions, which depend on the ductwork layout.

What is the difference between the Circular Duct as well as Pipe?

The material used for the production of Pipe is a flat rectangular sheet before being formed into a round shape with an open-ended. Circular ducts are made of galvanized steel with an insulated coating.

The Production of Pipes Includes The Transport of liquid or Games at a Regular Rate of Flow and Temperature. UIDS At Different Pressures, Temperatures, and Flow Rates. ‘t present in pipes.

How Do You Use Duct Clamp?

First, open the clamp using the screw counterclockwise. This allows it to be large enough to slide across the duct. Then, slide the clamp over the duct. Then, you can place the duct onto your preferred fittings it connects to. Then, slide the duct clamp across the joint, securing it between the Pipe and the fitting. The duct clamp should be tightened using the screw in the clockwise direction. The clamp expands the duct and encircles it around it until you reach the level of tightness you want.

What is the Best Hose Clamp for Spiral Duct?

The most efficient clamp for spiral ducts can be the one with a spiral, whose design assists in reducing damage to the chimney when fastening. The high-temperature-resistant rubber inside ensures the connection is leaking-free.

How Do You Calculate the CFM of a Duct?

  • Calculate the pressure of the duct’s velocity inside the chimney by using an assembly of pilot tubes to calculate the flow rate measured in meters per second. Connect the line to a pressure gauge.
  • The cross-sectional size of the duct will depend on the kind of duct you own, which is circular, rectangular, or square. For rectangular or square pipe, apply the formula A=X*Y, where A represents the cross-sectional size , X represents the duct’s length, and Y represents the duct’s width in feet. For round vents, you can use the equation px r2 with A being the cross-sectional size, and that will be 3.1459 as is r, and the diameter in feet
  • Find the cross-sectional dimension of the duct.
  • Multiply the cross-sectional surface of the duct and its velocity stream to obtain the CFM.

What is a Duct Connector?

The connection between ducts is a joint that has some flexibility and is airtight. It is constructed from either galvanized or stainless, which can be used to connect flexible ducts.

What is a Fire-rated Flexible Duct Connector?

A flexible duct that is a fire-rated connector is a connector for vents that can withstand the effects of combustion for an extended period.

They may be in one of three categories:

  • class 125, fire-rated flexible connectors for ducts
  • class 150, flexible duct connectors that are fire-rated
  • class 360, fire-rated flexible connectors for vents

How Do You Install a Flexible Duct Connector?

When you install a Flexible connector for ducts, be careful not to twist the connector, as it will not function correctly. Also, ensure you don’t force wrenches on the hose during installation.

Only use wrenches for the hex part of the connector for flexible ducts. Avoid bending the flexible connectors for ducts. Make sure that the radius of the flexible connection is more critical than the radius required to bend.

Use a flexible duct connector for example, mixing the connectors with other components and tools in the installation process.  The improper handling of flexible connectors causes their failure within the operational time. Ensure you have a suitable hose length and a proper fitting.

What is the Advantage of the Flexible Duct Connector?

  • A more affordable alternative to connecting ducts with a metal connector
  • It is easier to install
  • They are pliable, which allows them to bend under challenging locations.
  • Low labor costs

Where Can You Use Duct Boot?

Duct boots can be helpful to change the direction, form, and dimensions of your ductwork, such as switching your ductwork to round or square to round.

How Do You Install Duct Register Boot?

  • The first step is to use a suitable cutting tool, such as a pipe cutter.
  • The register boot should be cut down to the proper length.
  • Then, join the register boot to the ductwork, ensuring it is perfectly positioned.
  • Finally, make use of the screw to secure the register duct boot.

How Do You Check Ductwork for Leaks?

  • Check for obvious tears in the ductwork.
  • Tears indicate there are leaks in your ductwork.
  • Repair any tears by using a suitable sealant.
  • Another alternative is to turn on the complete blasting of your ductwork.
  • It is easier to spot leaks when the ductwork is blowing than when it’s quiet.
  • The greater the volume of air that is blowing, the greater the chances you have of discovering leaks. Also, you can look for leaks at the joints of the duct.

These are the places at which two ducts come together.

If you feel air coming out of your hands in this area, there’s the possibility of a leakage. Also, be sure to check for the areas that have duct tape. The tapes get worn out over time, which exposes the leaks. Take them off and replace them with new ones. Secure these areas to prevent leaks. Also, you can employ a smoke pencil or incense.

What is the Function of a Duct Splitter Damper?

A Splinter or duct damper can direct a specific amount of air through the given duct. However, many manufacturers don’t recommend it since it causes static loss, leading to turbulence. A better alternative for a duct splitter damper is the volume damper that controls volume.

3-way Duct Splitter and 4-way Duct Splitter. How Do They Compare?

These splitters for ducts are essential in controlling the airflow during your room’s air circulation.

The significant distinction between these two duct splitters is the amount of minor ducts that allow airflow. A 3-way duct splitter splits the principal duct into three small vents, which control airflow in three directions. On the other hand, a 4-way duct splitter divides a duct’s main one into four secondary vents that channel airflow in four directions.

What kinds of HVAC fittings does Superaircool provide?

Superaircool provides a variety of HVAC fittings for ducts to meet your requirements.

They include a ceiling box, pant eyes, square-to-round transitions, Tee eyes, 45-degree- and 90-degree elbows, and many more. We design these duct fittings to meet your specific ductwork requirements.

What is the HVAC System Work?

The first step is to remove the warm air from the room via a grille at the bottom and on top. The warm air moves over chiller pipes through where there is a cooling fluid that circulates. This aids in cooling the hot air and removes any excessive moisture.

Following this, cool air is pushed across an element for heating.

Based on the time of year and the temperature, this feature can be turned off to heat the air that flows across it. An airflow fan on the uppermost part of the system pushes air through a grille. If you shut off your heating system, air That flows through the space will turn cold, cooling the room slowly.

In the meantime, coolant flows through the chiller pipes, picking up the heat from the air flowing over the lines. The refrigerant causes it to evaporate, leading to the gas becoming hotter.

The hot gas flows from the inside towards the outside, where it is pumped into the compressor outside the building. Different metal plates transfer this heat to the surrounding air in this case.

An electric fan aids in it to pump the air. Gradually, you will notice changes to the temp of the room.

Are Rectangular Ductwork More Efficient than Rectangular?

Round ductwork is perfect for directing air with a low-pressure drop. It also makes less sound, which could disrupt the room’s inhabitants. In addition, the cost of installation is significantly lower than rectangular ductwork.

What is a Normal Static Pressure in the Ductwork?

A standard static pressure for ductwork will be the highest resistance pressure the HVAC fan can blow.

That’s when the ductwork has maximum resistance, such as an airflow-free condition. Static pressure leads to more force but with less air circulation. The static pressure varies based on the dimensions of the ductwork.

How Do You Increase Airflow in Air Ducts?

You can improve the airflow in your air ducts by sealing any leaks within your ductwork. Leaks can reduce the amount of air that flows through your ductwork. This, consequently, raises your energy costs. Increasing the airflow by cleaning and filtering the ducts is also possible.

The accumulation of dirt in the duct filter decreases the airflow because there is no way for the air to flow. If the filters in your duct have deteriorated, consider replacing them to ensure they function correctly.

The third way to increase the airflow through your duct is to use the correct ductwork in your design. The right size leads to an adequate air supply and, in turn, increases your energy costs.

Types of HVAC Duct Fittings

Elbows and Bends

Bends and elbows are vital fittings that let the ductwork traverse around obstacles and corners. They are available in different angles, usually 90 and 45 degrees and are essential to ensure the airflow’s smoothness.

Connectors and Couplings

Connectors and couplings are utilized to connect different sections of ductwork. They provide an encapsulated connection that blocks air leakage while maintaining the ventilation systems’ quality.


Dampers are adjustable plates placed inside the ducts that restrict or limit airflow. They aid in regulating the quantity of air that can enter certain areas, which allows for more efficient temperature control and airflow management.

CFM is different from Static Pressure: What’s the difference?

CFM is the airflow measurement between two points in a duct due to the pressure difference between these points. On the other hand, the static pressure is the potential energy measurement of the air unit at a particular cross-sectional location of the pipe.

What Material is a Duct Insulation Sleeve?

The most suitable material to use in the duct insulation sleeves is fiberglass. Fiberglass comes in a variety of R-values​​as well as thicknesses.

Other materials in the duct insulation sleeves include mineral wool, natural fibers, cellulose, polystyrene, and polyurethane. Each of these materials comes with its pros and cons for usage.

What is the Function of the Insulation Sleeve?

Sleeves for insulation help reduce the loss of heat through the ductwork while air moves. A loss of heat within the ductwork can cause an unusual temperature in your room.

R8 Duct Insulation Sleeve in comparison to. The R6 Duct Insulation Sleeve. What’s the Difference?

The R8 duct insulation sleeves are more robust than the R6 duct insulation sleeves. So, R8 duct insulation sleeves provide superior insulation over R6 insulation sleeves. R6 duct insulation sleeves are less efficient in heat insulation than the R8 duct insulation sleeves. The R8 duct insulation sleeves cost more than duct insulation R6 sleeves. The outside diameter of the R6 duct insulation sleeves is much smaller and more flexible and thus provides more efficient thermal performance than R8 duct insulation sleeves.

How Do You Install Insulation in Heating Ducts?

You’ll need a foil-faced fiberglass insulation with an R-value higher than R-6. Choose a metallic foil according to the recommendations of the manufacturer of your insulation for sealing and holding the insulation in location.

Clean the surface of the foil you wish to insulate before the application of the tape.

The paper should be removed from the tape and placed on the surface to keep the tape from sticking to the surface. It can be sprayed over the existing insulation or, if worn, consider replacing it.

Utilizing an instrument and a saw, cut the insulation into the length required to fit perfectly over the pipe. Verify that the duct is being appropriately insulated.

Does Superaircool come with Rectangular Ductwork Fittings?

Indeed, Superaircool offers rectangular ducts in various sizes to meet the requirements of our diverse customers.

Why Do You Need a Flexible Duct Connector?

Flexible duct connectors are essential in separating the sound and vibrations throughout the system when the blower or fan runs. This allows for a smoother airflow for smooth air conditioning.

Are There Standard Rectangular Duct Sizes?

Yes, there are standard rectangular sizes of ducts that can be used in various ductwork. The ducts are rectangular and compatible with various types of ductwork.

How Can You Measure HVAC Duct Fitting Dimensions?

The Measurement of HVAC DUCT FITTINDS Depends on the Type of Hvac Pipe. To Determine the size of your rectangular hvac, Begin by Measuring The Highest Width of T He hvac ductwork. Utilizing Measuring Tape, Move the Measurement Over the Other Side, then take the measurements.

Determine the height of the HVAC ductwork by using the tape measurement. The width and height should be taken as the actual fitting dimensions of the rectangular HVAC ductwork. For ductwork with a round shape with a string, tie it to the entire circumference of the HVAC ductwork.

Take note of the beginning point and the place where the string intersects with the beginning point. Remove the string and put it on a tape measure to find the length between the points.

This is the diameter of the ductwork. Find the measurement by dividing the circle’s circumference with pi (3.14).

What Does The Equivalent Length Of A Duct Fitting Mean?

A duct fitting’s equivalent length is the length of the straight pipe, which provides the same obstruction to airflow in the fitting. This length is essential for ensuring the proper distribution of air throughout the duct.

What is the Best Material for Ductwork Fittings?

The ideal material for fitting ductwork is stainless steel or galvanized steel because of its numerous advantages. In other words, it doesn’t rust, which gives it a longer life. They also provide stiffness and strength, implying that they are less expensive to maintain and the power of the ductwork you require.

What is the Duct Insulation Protection Shield Used For?

Duct insulation shields are used to safeguard the insulation in the ductwork. They also evenly distribute the weight of the ductwork on every hanger.

Which Types of Ventilation Duct Systems do Superaircool Offer?

SuperAircool provides various ventilation ducts , including exhaust ventilation, supply-balanced ventilation ducts, and energy recovery systems. We also offer custom ventilation duct systems designed to meet our customers’ requirements.

Can Superaircool Custom HVAC Duct Fittings?

Yes, we can customize HVAC fittings for ducts according to the client’s specifications. You must submit the measurements and layout of the HVAC fitting for ducts.

How to Decide the Duct Fittings for Your HVAC System?

When deciding on the duct fittings for your HVAC system, you should consider several elements.

For instance, you have to consider your HVAC unit’s size. This will allow you to choose the right size fitting duct you want to use for your HVAC system. Consider the dimensions of your fan or blower. A proper fitting for ducts should help the performance of the fan or blower.

Also, you should consider the HVAC system’s material. A variety of materials are used for the HVAC system, so you will require the fitting to be compatible with the material used in your HVAC.

Your duct fitting must consider the HVAC unit’s layout to allow it to be a good fit for the HVAC system.

Can Duct Fittings Be Custom Made?

The duct fittings can be modified based on the client’s needs. All you need to do is provide the design to your manufacturer, and they’ll take care of the design for you.

What is the Lead Time for Custom Fittings?

The standard lead time for custom fittings is between 7 and 10 days.

Can Superaircool Provide Drawings for the Custom Items?

Superaircool can draw drawings for customized items, with a time frame of between 2 and 3 days. Time of between 2 and 3 days.

Can Superaircool accept the Goods Consolidations with other suppliers?

Superaircool is willing to do goods consolidations with other suppliers.

What is the Lead Time for the Bulk Order for Fittings?

The average lead time for bulk orders for fittings is approximately 30 days.

Can Superaircool Provide Samples for Fittings?

Superaircool offers standard samples to fit fittings for free.

How to Maintain the Quality of Fittings?

Superaircool offers an inline QC process for each stage of production.

What is the Advantage of Superaircool Fittings?


duct fittings are available in almost every standard category, as well as fittings that are custom-designed to your specifications.

How to Ensure Steel Material Thickness?

Superaircool strictly follows the client’s steel thickness requirements. We generally utilize one grade to deal with the thickness issue in steel since most steel thickness is low tolerance and is found in China.

Does Superaircool have the report for the Duct Fittings made of metal Material?

Yes, we’ll provide you with the Mill test results.

What certifications does Superaircool have for the Ventilation Duct System?

We hold ISO 9001 certification, CE and SGS fire rating reports, and ROHS certification.


If you have questions, please  get in touch with us now  ; we’ll be happy to help you.


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