What is a Jubilee Clip? What are The Jubilee Clip Sizes for Ducting?

While building any pressurised system you may need to connect two hoses or attach them to a different type of fitting. If you use a method that does not provide you with a solid seal and sturdy connection, the pressure within the system will pop that connection out in time.
Usually, while the hoses are brand-new they tend to stretch over fittings and stick there, thanks to the elasticity of the rubber in them. With ducts, sadly, you can’t rely on that. And even if you are dealing with rubber hoses, in time the rubber will lose its elasticity and will pop right out of the fitting.

In the automobile industry, the most used way of securing those connections is via Jubilee clips. These are made out of steel strips or band and screw housings. Tightening the screw in the screw housing pulls the steel strip making it squeeze around the housing, keeping it in place for good. Whenever the connection weakens, all you need to do is to tighten it a little more. If that does not help, it might be time to change the hose.

Just like fuel lines and the water coolant systems in cars, HVAC (heating, ventilation & air conditioning) systems work under pressure. They need to push cold/warm air in and out of the room in order to keep the temperature comfortable for you and that happens thanks to the pressure provided by the fans.

Jubilee clamps in climate control systems and exhaust/fume extraction systems are used to secure flexible ducts in place. Their generic name is duct clamps. In some cases, they can even be used as ducting support brackets to secure steel ducts in place as ducting fixings, at least until a better solution is provided.

Note: The name “Jubilee Clips” comes from their England based manufacturer – “Jubilee Clips” in Kent. They were established in 1921 and are a well-known brand here in the UK. In fact, their product “hose clamps” are called Jubilee clips in many other places of the world as well.

What are Jubilee clips made out of

They are made out of strong steel, in fact, three types of steel are being used for their production. You can find mild zinc-plated Jubilee clips and large stainless steel Jubilee clips. Mid steel is the more popular solution for most applications but is not very resistant to corrosion. Because of this flaw, it is often coated with zinc to prevent corrosion with use. In addition, there are certain hose clip standards that must be followed. For example, all hose clips must withstand 48-hour resistance against red rust. Jubilee Clips have a minimum of 72 hours.

In terms of corrosion resistance, stainless steel is the best option. This makes Jubilee clips the perfect choice for a number of applications and a variety of industries from the food and beverage industry, to marine use. You can also discover other types of Jubilee clips like plastic jubilee clips, wide jubilee clips, and heavy duty jubilee clips.

• Mild;
• 304 Stainless;
• 316 Stainless (HNSS).

Those materials are extremely strong and durable. They can withstand the external forces quite well, and even deal with heat and corrosion (stainless).

What are the different types of Jubilee clips

You can discover a range of different Jubilee clamps. The ducting clips of this type can be divided into a few separate categories.

• Bold drive hose clamps – also known as T-bolt clamps or head bolt clamps. Often made from stainless steel with a tiny bolt attached across the top of the band, secured at either end. Mostly used in heavy-duty or industrial applications.
• Quick release jubilee clips – also known as quick-release hose straps. Created using metal or nylon, they’re used when straps need to be fully opened prior to placement.
• Snap grip hose locks – also known as Herbie grip. Created from plastics and featuring ratcheting teeth created for firm interlocking. Perfect for indoor and outdoor applications in the medical, food, automotive, and other industries.
• Worm drive hose clips – a shorter and thicker worm drive mechanism on the band’s head. The most popular design for standard hose clamps. They are ideal for standard applications as they provide an excellent sealing at lower torques in comparison to other bolt style clamps.

What sizes of Jubilee clips are available

Thanks to the many different applications of this product, it is safe to say that you can find them in any size you might think of. From the smallest of sizes that you might use to connect your car’s windscreen wipers, to extra large jubilee clips.

In ductworks, there are a couple of standards. You can find the proper size of duct clamp correlating with all of them.

General Jubilee clip sizes of duct clips:

• 110mm;
• 135mm;
• 180mm;
• 215mm;
• 270mm;
• 325mm;
• 525mm;
• 660mm.

In ducting, you would rarely need a smaller duct clamp than 110mm. However, even if you do, you can simply unscrew one ducting clip and cut as much as you need from the steel band. Re-installing the screw housing afterwards. This will leave you with a “custom” length ducting bracket. You can even buy a 30-meter roll of strangleband from our shop to screw separate items and cut as much as you need from it for your specific situation.

If any questions arise, regarding where and how you can or should use ducting clamps, you can get in contact with our customer support at 01455 616444. They will guide you through the process of choosing the right products for your systems, fans, filters, structural support, sealants, anything you might need.