Galvanized Duct

Galvanized Duct: The Complete FAQ Guide

In case you have any questions about galvanized duct or you would like to learn more about these HVAC duct systems, read this guide.

It will help you become an expert in the HVAC duct systems.

What is a Galvanized Duct?

It is a ducting component designed from different metallic materials used in a wide range of applications revolving around the ductwork system.

The material is spurred in a hot-dip process of coating with a layer of a specific compound to give it the desired finish.

Galvanized duct portrays numerous intrinsic features making it one of the most popular components in numerous ducting systems.

It is available in various designs, shapes, sizes, and finishes.

Of course, this is critical because it broadens your choices when it comes to selecting what suits your demands and needs.

Galvanized duct

Why use Galvanized Duct?

Galvanized duct presents several advantages in a wide range of advantages, thus making it ideal to use it on your ducting projects.

Some of the beneficial reasons for using this component include the following;

1) It has incredible resistance to rust, thus making it suitable for you to use in several types of applications, irrespective of the prevailing weather conditions.

2) It is highly durable since it is made from sturdy materials and taken through a process, which reinforces its strength.

The essence of this is it helps in increasing the overall lifespan of your project hence saving you unnecessary repair and replacement costs.

3) It is generally attractive with a fine-touch finish variety. It, therefore, enables you to attain proper aesthetic appeal since you can as well choose to paint it.

4) It is relatively flexible, which makes it possible for it to attain necessary contraction and expansion, accordingly.

5) The surface material of this component is elegant and smooth.

This is essential when it comes to enhancing the efficiency of airflow, particularly in an HVAC ducting system.

6) It is relatively easy to expand or reduce the size of this component when connecting it to a bigger or smaller piece, respectively. This is attainable through slip joints or flange-to-flange connections.

7) You can find this component in a wide range of designs, sizes, and shapes, which is vital when it comes to selecting the ideal one for your specific needs.

What is the Best Material for Galvanized Duct?

Steel is arguably the best material for manufacturing a galvanized duct.

In essence, steel has a number of grades based on different properties and compounds.

They make some of the best galvanized ducts for numerous types of applications.

Some of the common types of steel for this component include the following;

Stainless steel – It is a material, which contains various compounds in different portions.

It contains Chromium, Carbon, Manganese, and Silicon.

It is exceptionally resistant to corrosion and has enhanced formability.

Carbon steel – It is an alloy of Iron and Carbon.

This material does not have a particular minimum content of the other alloying compounds.

Even so, it contains Manganese, Silicon, and Copper up to a certain percentage.

Alloy steel – It refers to the type of steel alloyed with different types of compounds with different properties.

These elements in an alloy steel help in enhancing its overall mechanical properties.

What are the Uses of Galvanized Duct?

Ideally, there is a wide range of uses for the galvanized duct.

However, the specific use for this component is entirely dependent on the construction design as well as the specific type of material.

But in general, some of the common functions of this component include the following;

Figure 2 Galvanized ducting system

Ventilation – It is used in a wide range of commercial and industrial buildings as a ducting system for HAVC units.

They form solid ductwork hence guaranteeing efficiency and better results.

Heating – It is also used in different factories and manufacturing plants for heating substances such as hot air.

Air conditioning – Galvanized duct is also vital when it comes to delivering, supplying, and exchange of hot and cold air in various settings.

Dust collection – This type of duct is also vital when it comes to the collection and extraction of dust in different manufacturing and processing industries such as furniture.

How can you Fabricate Galvanized Duct?

There are several techniques you can use to fabricate this component.

Most importantly, is to understand this component is relatively flexible hence making it possible for you to customize it in different ways.

Some of the techniques you can use include the following;

Cutting-to-size – It essentially involves reducing the dimensions of this component to match the size of your particular application.

You can use different types of tools and equipment to cut this component to size depending on the size, thickness, urgency, and accuracy, among others.

Welding – It a fabrication technique, which involves joining of different parts of this material.

It uses high heat in melting the different surfaces together then allowing them to cool, thus causing fusion.

Drilling – It is a technique for creating a hole on the surface material of this component.

It uses a multi-pointed rotary cutting tool, also known as a drill bit, to cut relatively circular cross-section holes.

Bending – It refers to folding of the galvanized duct using different techniques to suit applications with uneven or complicated surfaces.

Bending is only suitable for specific cases due to the extent of movement of the component during the entire process.

What is the Suitable Size for Galvanized Duct?

There is no fixed size of a galvanized duct.

In essence, the project demands and needs are the greatest determinants of the size of this component.

There are applications, which require relatively large galvanized ducts, whereas others need somewhat small pieces of this component.

You can also order for customized sizes depending on the needs of your applications.

What’s more, is this component is also quite easy to fabricate; thus, you can always adjust it accordingly to fit the needs of your project as far as size is concerned.

Tentatively, most suppliers are conscious of this fact hence tend to produce a variety of this component in regards to size requirements.

Is there Thickness Limitation for Galvanized Duct?

Not at all!

There are several factors, which determine the ideal thickness for this component.

In most instances, the specific application for a galvanized duct is a great factor when it comes to thickness requirements.

For instance, projects, which demand high pressure and velocity, will certainly use galvanized duct, which is comparatively thick.

It is the aspect, which enables it to endure the pressure it is exposed to.

Tentatively, you can as well choose to go for a unit with customized thickness depending on your requirements.

The bottom line is there is no thickness limitation for the galvanized duct.

It is all dependent on the specific demands of a project and the customer’s needs.

How does Galvanized Duct compare with Standard Ductwork?

Round galvanized duct

There is a significant difference between galvanized and standard ductwork in wide-ranging aspects.

These aspects range from functional and technical features.

Some of the ways these components compare include the following;

Affordability – In essence, the galvanized duct is seemingly more affordable compared to standard ductwork.

In any case, the former utilizes about 32% of the less material of what the latter seems to use in a conventional ductwork system.

Adaptability – The standard ductwork is more or less adaptable to any building height restriction.

This, however, is not necessarily attainable when using a galvanized duct.

Portability – The standard duct is easier to handle and transport even in large pieces.

You can thus ship the pieces by nesting or breaking them down.

On the other hand, it is quite hectic to transport galvanized ducts, especially the larger pieces, since they are not easy to break down.

Noise control – Galvanized duct has better control of noise levels emerging from the running components of the ductwork system than the standard duct.

In essence, it has a relatively low-pressure drop, which helps to reduce drum effect and fan speed.

Leakage – The chances of galvanized ducting to leak are on the bare minimum compared to standard ductwork.

Most of the galvanized duct units have fewer transverse joints, thus reducing possibilities of leakage.

Stiffness – Galvanized duct is seemingly stiffer compared to the standard duct.

This aspect makes it easier to insulate its surface material compared to the normal ductwork.

Does Galvanized Duct conform to any Specific Quality Standards?

Absolutely correct!

Before any particularly galvanized duct gets to the market, there are several stringent quality measures, which it has to conform to.

The essence of such measures is to ensure the product meets various aspects revolving around technical, safety, environmental, and health requirements.

Some of the common quality standards this component conform to include the following;

ISO 9001 – It is a relatively popular standard in different manufacturing industries.

This standard ratifies the suitability of a supplier manufacturing this component to consistently produce quality products, which meet the legal and customer requirements.

SMACNA – It refers to a quality standard, which approves the minimum requirements different HVAC system components should entail.

It primarily sets the standards suitable for HVAC systems.

UL – This is an agency responsible for assessing various aspects revolving around the suitability of a product to meet particular minimum requirements.

ASTM – This is a quality standard in charge of designing and publishing the specific technical aspects a product must conform to.

A galvanized duct with ASTM quality mark meets all the minimum legal and market needs.

SGS – It is a standard, which inspects, verifies, assesses, and endorses the suitability of this product to comply with customer and legal needs.

CE – This refers to a quality mark, which substantiates the product’s suitability and conformity to safety, health, and environmental factors.

Which Fittings and Accessories can you use alongside Galvanized Duct?

Galvanized duct come along with different types of fittings and accessories.

Even so, the specific pieces you’ll need depends on the complexity or simplicity of the project.

Some of the popular HVAC duct fittings and accessories for this component include the following;

HVAC Duct Fitting

Ball joints – Refer to the types of joints, which allow movement two pieces of hard duct.

They have an overlapping duct joint, which is essential in offering comparatively low friction for a periodic or constant movement in the ducting system.

Diverter valve – It refers to a component, which sidetracks the flow of water or air in a ductwork system.

Quick-release coupling – It is an accessory used for providing fast and easy connection and disconnection within a ducting work.

Air actuated gate – It refers to a component, which is pneumatically controlled to open and close in a ducting system.

Is it necessary to Insulate Galvanized Duct?

 Insulated galvanized duct

Absolutely right! Insulating a galvanized duct is necessary, especially for applications in unconditioned areas such as floors, basement, and ceiling.

The essence of the insulating galvanized duct is to ensure the ducting unit upholds the required temperature accordingly.

Insulating this component is also vital because it minimizes the chances of leakage.

In the long run, cloistering a galvanized duct helps to save energy loss, which in most instances, tends to compress the HVAC unit and making it to strain unnecessarily.

How is Galvanized Duct Manufactured?

The manufacturing process of a galvanized duct is quite daunting and requires hi-tech tools, equipment, and expertise.

Even so, there is a basic principle for making this component and involves the following;

• Ensure you decide on the specific type of material to use in making your ideal galvanized duct.

Notably, there are several grades of steel you can choose to use depending on the particular needs surrounding the application and other factors.

• Once you identify the right material, prepare it by passing it through the mills.

At this stage, the leveler will flatten the material and then sends it to the edge trimmer for formation.

• The manufacturing process then takes a strip through the exterior and interior welding stage, moving in pre-determined motion.
• It then leads to the formation of a galvanized duct depending on the particular shape or design of your choice.
• The next step is cutting the component from the machine at the desired length before the inspection and testing process ensues.

What is the Price of Galvanized Duct?

The price of the galvanized duct depends on several factors revolving around the functional, market, design, and technical specifications.

In most instances, customers usually order for custom-made galvanized ducts.

It that sense, it is quite apparent the extent or design of customization of this product will determine the ultimate cost.

Secondly, the exact type of material used for manufacturing this ducting component is another substantial price determinant.

Of course, this component can be derived from numerous types of material grades.

And the price for each grade is different depending on the type of alloys and other compounds.

Thirdly, the minimum order quantity you make for this order also determines the cost.

But this is wholly dependent on the supplier based on the specific policies of revolving around the MoQ terms.

In general, though, you’ll notice quite a number of suppliers often offer discounted rates for higher MoQ than the reverse.

And most importantly, the logistics also ultimately eat into the net price of this component.

For instance, if you are importing to a particular overseas country, it will be a bit costly.

In this case, you’ll have to factor in additional expenses such as CIF, and related taxes.

So, in a nutshell, there is no definite cost for this component.

What Factors do you Consider when Purchasing Galvanized Duct?

Some of the critical elements you need to look into when buying a galvanized ducting include the following;

 Galvanized spiral ducting

Project – It merely refers to the specific application where you’ll use this component.

Of course, they vary since the galvanized duct is relatively versatile.

Therefore, you need to ensure you make your choice after considering the demands of your project in regard to this component.

Type of material – You also need to factor in the specific type of material you are using for your galvanized duct.

This component can use different grades of materials, including Carbon, Stainless, and Alloy steels.

Thus, it is recommended to pick the right one, which suits your particular requirements.

Supplier – It is also an essential factor you should never overlook when purchasing a galvanized duct.

There are different manufacturers in the market with products, which match various technical features.

It is advisable to go for a relatively known brand, which has demonstrated reliability and quality products.

Personalization – You also need to figure out whether you want custom-made design and, if so, to what extent?

The essence of this first is it makes it easy for you to attain the exact product, which meets your needs.

It also enables you to be certain you are dealing with the suppliers with sufficient capacity to provide customized units.

Cost – It is another fundamental aspect you must always have in mind when buying this component.

If anything, it your budget that determines all the other factors to consider in acquiring a galvanized duct.

To get the best deal, you can as well choose to shop in different suppliers and compare the prices and other hidden charges.

Is Galvanized Duct Watertight?

Absolutely correct!

The design of this component factors in zero-leakage aspects.

Moreover, it also incorporates design construction, which strengthens the sturdiness hence making it incredibly resistant to pressure or high velocity.

Again, for the ducting system, which requires joint, the accessories and fittings for this component also guarantee leakage free.

In a broader sense, the joints are integrated using lock-forming technology as well as airtight clamp-connect tubing.

Can you Order for Customized Galvanized Duct?

Most definitely!

Since most projects, which utilize this component are relatively unique, there is a need for ordering customized galvanized ducts.

It is again the basis many suppliers nowadays are also investing significantly in equipment, technology, and expertise in producing customized units.

The fundamental element when ordering a customized galvanized duct is ensuring you are dealing with the right supplier.

In this sense, the manufacturer must exhibit the ability to produce custom-made units of this component before you commit to the investment.

Does Galvanized Duct have any Disadvantages?

Of course, it has some drawbacks, albeit a few. They include the following;

1) It can be quite costly, depending on the exact material you are purchasing, customization, needs, and other related logistic demands.

2) It is somewhat challenging to adapt this component to a specific height of a building or construction.

3) It is a bit challenging to transport it since you can encounter various limitations when trying to nest or breaking it down. This can be more or less inconvenient and costly, especially if the quantity is a bit more.

How does Galvanized Duct Enhance Efficiency of Air Flow?

This component is naturally elegant.

The design construction, which ensures there is limited transverse joints, helps in enhancing the efficiency of airflow.

What’s more, is this component is also relatively smooth and does not have unnecessary distractions.

In general, all these aspects, among others, improves airflow substantively.

What is the Service Lifespan for Galvanized Duct?

In general, this component is quite durable. The design construction and materials enhance its resistance to several elements.

Even so, its overall lifespan is pegged on a few elements surrounding its usage and prevailing conditions it is exposed to.

In simple words, if it exposed in relatively harsh conditions for long, it can only endure the circumstances for a limited period.

However, if it is subjected to more friendly conditions, it can last for as many years as possible.

Tentatively, the overall lifespan of a galvanized duct is also contingent on the specific material grade used.

These materials often have variance, when it comes to the level of additives and other compound integrated into this component.

The bottom line here is there is no definite lifespan for a galvanized duct.

Can you Bend Galvanized Duct?

Bending HVAC Galvanized duct

Absolutely correct! It is one of the popular fabrication techniques for this unit.

Bending a galvanized duct, however, is quite involving and requires a certain level of expertise, tools, and equipment.

While at it, you need to understand when bending this material, it should only be for specific cases.

The reason here is the level of movement of the component in the process is quite sensitive.

What are the available Design options for Galvanized Duct?

They are quite several since different customers often go for customized designs.

However, some of the popular options you are likely to come across in the market include the following;

Spiral galvanized duct – It is a design, which takes cylindrical shape but contains some slits on the surface material.

This design is stiff, versatile, and appealing to the eye hence can be used for both indoor and outdoor applications.

Flanged galvanized duct – This design features a rolled angle with holes on the flanges.

They often use bolts for pulling the flanges together but are also available in various sizes.

Rectangular galvanized duct – It is another popular design of this component, which features the shape of a longitudinal tubing.

Is Galvanized Duct Safe?

Most definitely!

This component is 100% safe for the environment.

Experts regard is a green option given it uses less energy during production.

In an ideal state, this component resists moisture and condensation, which can be hazardous.

In most cases, this can be essential for factories, which draw mists and other related compounds out of air.

Additionally, this component is fully recyclable.

It thus means you can choose to turn it to new metal, whether carbon, alloy, or stainless steel at a high rate.

In essence, this helps in keeping the landfills safe, which ultimately reduces the possibility of environmental degradation.

It is fundamental in reducing the depletion of natural resources.

It also helps to prevent distorting the eco-system of flora and fauna.

Of course, all these are a clear indication of how the galvanized duct is a safe component to the environment.

As you can see, there are many concepts you need to know about galvanized ducts.

However, in case we didn’t answer your questions here, contact Biyang for a perfect solution in your HVAC systems.