What is a COPV keg?

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Why COPV is the Future of Kegs

Steel kegs have been used for nearly 100 years, just like how the aerospace industry previously used metallic pressure vessels before COPVs (Composite Overwrapped Pressure Vessel) were invented. It's time that the 100 year old keg design gets an upgrade.

The leading cause of injuries in breweries is kegs, mainly from simply lifting and handling them. Beyond this, kegs cause problems with high distribution prices and are a danger to the customer all because of the weight of stainless steel kegs. In addition to weight, kegs need to be strong, safe, and maintain the quality of your beer for as long as possible. PET kegs have tried to solve this problem, but are costly, dangerous, and most effect the taste of your beer.

These reasons are exactly why COPV kegs are the future of this industry. They are lightweight (40% lighter than steel kegs), can hold more psi than steel kegs, and maintain beer quality equally as well as any steel keg. COPV's weight savings come from its construction: a thin steel inner liner wrapped in composite to give it its strength and durability. As an added benefit, the steel inner liner is made of the same material as the stainless steel kegs that you likely already use, meaning that your beer's quality and taste will be unaffected by COPV kegs.

COPV kegs reduce brewery injuries, lower distribution costs, and help breweries around the world distribute amazing beer.

If you want to learn more about COPV kegs and see purchasing options, you can do so here: https://kegstand.us/product

Current COPV Use Cases

In the 1960s, NASA invented COPV to help reduce the weight of their rockets. Since then, there have been many advances to the technology from improved strength, to cost reductions, making COPV the go to solution for lightweight and strong pressure vessels.

With its roots in the Aerospace industry, COPVs continue to play a bigger and bigger influence in this field. NASA, SpaceX, the US Military, and other entities are currently using this technology in order to reduce the weight of their aircrafts/spacecrafts and to build pressure vessels that can withstand the worlds most demanding environments.

If you've ever wondered what a firefighter's oxygen tank is made of, its COPV. These tanks must withstand the extreme conditions that this job supplies on a daily basis. Firefighters rely on COPV over other pressure vessels because they are fantastic at being able to maintain extremely high pressures (around 3,500 psi on average) and be able to be reliable within harsh conditions.

How is COPV Manufactured?

First, the inner liner is made out of thin metal, typically steel or aluminum. This is done through traditional processes in aluminum or steel manufacturing.

The next step is to apply the composite wrap to the inner liner. There are multiple methods to do this, but the highest quality COPVs are made through a process called filament winding. Filament winding is a process where metal inner liner is placed on a spinning axis and the fiber is wrapped around the vessel.

During the filament winding process, the fibers are run through a resin bath to help add further impact resistance to the vessel.

The last step to make a top-of-the-line COPV is to run it through a process called autofrettage. Autofrettage is where the COPV is pressurized to the point that the fibers and resin bond with the inner metal liner.

Using COPV for Kegs

Using COPV kegs rather than stainless steel or PET kegs will do a few key things for your brewery.

Keep your employees healthy by reducing injuries caused by lifting kegs.

  • Keep your employees healthy by reducing injuries caused by lifting kegs.
  • If you distribute, lower your distribution costs.
  • Unlike PET kegs, COPV kegs maintain beer quality and taste flawlessly.

Our COPV kegs are made to integrate into all of your current brewery systems from keg cleaning, to automation lines, to filling, the FiberLite meets all industry standards to make sure your switching cost is $0.00.

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