HVAC

HVAC Accessories

HVAC Accessories encompasses everything that might be required in addition to the ductwork profiles and corners etc. Doby Verrolec supply a number of these additional components and are making more available all the time.

  • CLAMPS
    CLAMPS

    Our clamps allow for rapid assembly of cross joints, and are designed for and tested with the Doby Verrolec flange systems.

    Using base material Hot rolled steel to BS EN 10111:2008 and Electro Zinc Post plated for corrosion resistance to BS EN ISO 2081:2025.

    Options are available in 304L and 316L Stainless Steel for specialist applications, please contact our sales office for these requirements.

    Made in house and available from stock.

    Product reference: UCLAMP Universal U Clamp - designed for use with all Doby Verrolec flange range, and compatible with flange from other manufacturers.

    Product reference: VFGC Clamp - designed for use with the Doby Verrolec Verroflange and Verromax range.

    Product reference: DS204 Clamp - designed for use with all Doby Verrolec EP and XL flange range.

    Product reference: RFCLAMP Heavy Duty R5 G-clamp - a 4mm heavy duty clamp suitable for high pressure requirements.

  • PROTECTIVE DUCT FILM
    PROTECTIVE DUCT FILM

    Our protective duct film has been developed for use with ductwork components and comes with technical requirements to suit this purpose.

    Made from Polyethylene tear-proof, single sided self-adhesive film which has been tested to BS EN ISO 846:2019.

    It has excellent adhesion on galvanised steel, stainless steel and aluminium, and can be removed quickly without leaving any residue.

    The perfect solution to protect ductwork from dust and other contaminants during storage, transport and assembly.

    Product reference: Film 500

    Width 500mm, colour blue-translucent

    Other dimensions upon request

  • INTERNAL STIFFENER
    INTERNAL STIFFENER

    Our internal stiffener products allow for the for internal reinforcement of ductwork.

    Product reference: Reinforcing rod - 16 x 2mm Galvanised welded tube 3m long.

    Product reference: Cross Connector - For cross-connections of reinforcing rods. Galvanised with M8 x 25mm screw.

    Product reference: Emby-Fix - Galvanised M8 dowel for duct reinforcement with gear rim.

    Product reference: Stiffener Plate - Integral plate support for the reinforcing rod tubes inside the ductwork. Galvanised plate with 8.5mm hole.

  • DUCT SUPPORTS & FASTENERS
    DUCT SUPPORTS & FASTENERS
    • Our Duct Support Brackets are ideal for use when duct supports are not to be used on the underside of ductwork, or due to limited space.
    • The 900 and 901 Duct Support Brackets are suitable for use with our anti-vibration nylon bushes.
    • Our Sheet Metal Fasteners allow the rapid assembly of ductwork splitters and air turns.  They also enable purpose made louvres to be fabricated in a fraction of the time of traditional methods.
    • Product reference: DS513 Fastener & Washer, gauge: 22 - 18, size: 0.77 - 1.25
    • Product reference: 300 (Size 0 Splitter Pin), gauge: 25 - 20, size: 0.40 - 0.90
    • Product reference: 301 (Size 1 Splitter Pin), gauge: 22 - 18, size: 0.70 - 1.20
    • Product reference: 302 (Size 2 Splitter Pin), gauge: 17 - 14, size: 1.40 - 2.00
    • Product reference: 305 Blue Seal Rivets, gauge: 24 - 18, size: 0.50 - 1.13
    • Product reference: 900 Duct Support Bracket, gauge: TBA, size: TBA
    • Product reference: 901 Duct Support Bracket, gauge: TBA, size: TBA
  • FLEXIBLE DUCTWORK CONNECTOR
    FLEXIBLE DUCTWORK CONNECTOR
    • Our Flexible Duct Connector allows the rapid manufacture of flexible joints to prevent vibration transfer between ventilation, air conditioning equipment and associated ductwork.  Pre-assembled flexible duct connectors are available for Doby or VerroFlange Ductwork Systems, complete with appropriate mating flanges where applicable.
    • Flexible Duct Connector is available in rolls of 25m and is also available in a fire-rated material.
    • Product reference: DS109 Flexible Duct Connector x 25m and DS110 Fire Rated Flexible Duct Connector x 25m.
  • SLOTTED SUPPORT BANDING
    SLOTTED SUPPORT BANDING
    • ‘Dobystrap’ slotted support banding is a low cost method for suspending fixed loads, such as ductwork, air handling units, fans, pipe work and electrical trunking and cables.
    • Support banding is manufactured from galvanised mild steel to reduce the possibility of corrosion.
    • Our support banding is supplied in 30m coils.
    • Product reference: DS003
    • Slotted Banding 25mm x 0.8mm x 30m
    • Length Bundle Size: 30m Reels x 5 Reels

Comprehensive HVAC Accessories for Enhanced System Performance

HVAC accessories are vital components that ensure the seamless operation and efficiency of heating, ventilation, and air conditioning systems. At Doby Verrolec, we provide a wide range of high-quality accessories that complement our ductwork profiles, corners, and other core products. These accessories are designed to meet the specific needs of installers, contractors, and engineers, ensuring that every project is completed with precision and reliability.

Our HVAC accessories encompass everything required to optimise system performance, from sealing components to fasteners. With a commitment to quality and innovation, we continuously expand our product range to provide cutting-edge solutions for the HVAC industry.

Why HVAC Accessories Are Important

While ductwork profiles and corners form the foundation of an HVAC system, accessories play an equally critical role. These additional components enhance system integrity, improve efficiency, and ensure long-term durability. Without the right accessories, duct systems may be prone to air leaks, vibration, or instability, all of which can compromise performance and increase operational costs.

Doby Verrolec’s HVAC accessories are meticulously designed to address these challenges, offering dependable solutions that improve the functionality and lifespan of duct systems.

Key Features of Doby Verrolec HVAC Accessories

Our HVAC accessories are manufactured to the highest standards, ensuring compatibility and ease of use with our duct systems. Each product undergoes rigorous testing to guarantee durability and performance in demanding environments.

  • High-Quality Materials: Our accessories are crafted from robust materials, providing excellent resistance to wear and environmental factors.
  • Precision Engineering: Designed for seamless integration with ductwork profiles, ensuring a perfect fit every time.
  • Versatile Applications: Suitable for a wide range of HVAC projects, from residential installations to large-scale commercial systems.

The Role of HVAC Accessories in System Efficiency

HVAC accessories contribute significantly to system efficiency and reliability. For example, sealing components help prevent air leaks, ensuring that conditioned air reaches its intended destination without loss. Similarly, fasteners and brackets provide stability to ductwork, reducing the risk of vibration and noise.

By using high-quality accessories, HVAC systems operate more efficiently, resulting in lower energy consumption and reduced maintenance costs. Accessories also enhance the safety and reliability of the system, ensuring compliance with industry standards and regulations.

Environmental Benefits of High-Quality HVAC Accessories

High-quality HVAC accessories contribute significantly to energy efficiency, sustainability, and reduced environmental impact. Components such as gaskets, seals, and insulation play a crucial role in preventing air leaks, maintaining consistent airflow, and reducing energy consumption. By improving system efficiency, these accessories lower carbon emissions and help HVAC systems operate more sustainably.

Doby Verrolec’s HVAC accessories are designed not only for performance but also with eco-friendly materials. Using pre-galvanised steel and recyclable components, our products minimise waste and extend their lifecycle, reducing the need for frequent replacements. Our manufacturing processes are optimised to lower emissions and energy use, ensuring minimal environmental impact.

Efficient HVAC systems equipped with high-quality accessories also support compliance with green building standards such as BREEAM and LEED. By reducing energy waste and improving system longevity, these systems align with modern sustainability goals. For building owners, this enhances the environmental profile of a project and adds value by meeting eco-conscious expectations.

FAQ’s

We have a wealth of experience covering all kinds of projects. We often have clients ask the same set of questions about HVAC accessories. Below are some of the most common. If you’ve a question we have not covered below - please get in touch with us directly.

How do sealing components improve HVAC system efficiency?

Sealing components, such as gaskets and rubber seals, create airtight connections between duct sections, preventing air leakage. This ensures that conditioned air reaches its intended destination without loss, improving overall energy efficiency. Sealing components also help maintain consistent airflow, reduce strain on HVAC equipment, and lower operational costs by minimising energy waste.

What types of fasteners are commonly used in HVAC systems?

Fasteners used in HVAC systems include duct rivets, splitter pins, and self-drilling screws. These fasteners secure duct sections, corners, and other accessories, ensuring the structural stability of the system. High-quality fasteners from Doby Verrolec are designed to resist vibration, provide long-term durability, and simplify installation processes, making them essential for reliable HVAC systems.

How can vibration control accessories benefit an HVAC system?

Vibration control accessories, such as isolators and gaskets, minimise vibration and noise generated by HVAC systems. This not only ensures quieter operation but also reduces wear and tear on system components. By stabilising ductwork and equipment, vibration control products extend the lifespan of HVAC systems and improve overall operational efficiency.

How do HVAC accessories reduce installation time?

Doby Verrolec HVAC accessories, such as EZP corners and pre-drilled fasteners, are engineered to simplify installation processes. These precision-engineered components allow for quick assembly, reducing labour time and ensuring projects stay on schedule. By eliminating the need for complex modifications, our accessories help contractors work more efficiently.

What are the most important HVAC accessories for system stability?

Key HVAC accessories for system stability include support brackets, wire suspension systems, and duct stiffeners. These components prevent duct deformation, reduce vibration, and ensure proper alignment. By stabilising the system, these accessories help maintain consistent airflow and extend the lifespan of HVAC equipment.

Can HVAC accessories improve energy savings?

Yes, high-quality HVAC accessories significantly contribute to energy savings. Sealing components prevent air leaks, while support systems ensure proper duct alignment, reducing strain on HVAC equipment. These improvements minimise energy waste, lower operational costs, and enhance the overall efficiency of the system, making them a cost-effective investment.

Let Us Support Your HVAC Projects

At Doby Verrolec, we understand the importance of having the right accessories for your HVAC projects. Our extensive range is continually updated to include innovative solutions that improve system performance and meet the evolving needs of the industry.

Whether you’re working on a small-scale installation or a complex commercial project, our team is here to help you select the best accessories for your requirements.

 

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