How Do Glycol Beer Systems Work?

Cabaret Design Group

How do glycol beer systems work? Learn how the equipment works and why glycol systems are the most popular choice today. 

HOW GLYCOL BEER SYSTEMS WORK

Glycol draft beer systems operate through a process which is accomplished through three components:

  • Power-pack
  • Trunk line
  • Draft beer tower

POWER PACK

The power pack is a commercial refrigeration unit. It is the heart of the glycol system. The power pack is rather compact, as seen in the photo below. Don’t let this small package fool you. An individual power pack can house one-three pumps and motors. A single, properly-sized power pack can manage up to three trunk lines, each up to 750’ in length, each capable of handling up to 24 beer products. In this plan, we’re showing the possibilities for three different opportunities for trunk lines in this particular building.

Cabaret Design Group
GLYCOL DRAFT BEER SYSTEM POWER PACK

TRUNKLINE

A cross section of an 8-product glycol trunkline is shown in the photo below:

Cabaret Design Group

More simply, the trunkline provides a conduit for the beer product lines, connecting kegs of beer in the walk-in cooler to each respective faucet of the draft beer tower. At the core are sealed refrigerant lines which extend from the power pack to the tower in a continuous loop.

Cabaret Design Group
PHOTO OF DUAL-SERVICE INVERTED GLYCOL BEER TOWER

HOW TO INSTALL GLYCOL TRUNKLINES

Glycol trunklines are typically installed overhead or under-slab. When installed overhead, the trunklines are commonly housed in black iron pipe, as shown in the photo below. When installed under slab, each trunkline is individually housed in 6″ Schedule 40 PVC tubing.

Photo of custom iron back bar using architectural bar design by Cabaret Design Group
GLYCOL DRAFT BEER SYSTEM WITH OVERHEAD TRUNKLINE
Cabaret Design Group
PLAN OF GLYCOL TRUNKLINES INSTALLED UNDER SLAB

HOW THE TEMPERATURE OF THE DRAFT BEER IS MAINTAINED

As each beer product travels from the keg to the draft beer tower its temperature rises temporarily. This is due to the pressure of the gas that’s pushing it and the resulting drag caused by the plastic product lines that resist. By virtue of the principles of thermodynamics, the refrigerant lines dissipate these temporary temperature gains. The beer products are ultimately delivered at 38 F by the time they get to each respective faucet.

HOW THE GLYCOL BEER TOWER WORKS

As the draft beer travels from the walk-in cooler, I discussed the general concept of temperature maintenance. However, as approaches the tower, the job still isn’t over. The beer can still experience temperature gain over the final segment of its journey. According to industry leader Micro Matic, a lot could still go awry inside the beer tower. Micro Matic towers are designed with a bit of additional engineering so the beer is dispensed at 38 F at the end of each faucet.

Cabaret Design Group

THE GLYCOL IS ALWAYS WORKING

Upon leaving the tower, the return-side of the glycol loop returns to the power pack so the refrigeration cycle can be repeated. Even on its way back to the power pack, the return leg of the glycol line still helps to stabilize the temperature of the beer products on their way to the tower.

RELATED POSTS

WHY DRAFT BEER SYSTEMS NEED DEDICATED WALK-IN COOLERS

HOW TO SIZE A WALK-IN COOLER FOR SMALL DRAFT BEEER SYSTEMS

Free Consultation

Contact Us Today to Schedule Your Free Consultation!

 ———————————————————————————————————

POPULAR POSTS:

INTEGRATED BAR DESIGN IS ARCHITECTURAL BAR DESIGN

ERGONOMIC EFFICIENT BAR DESIGN INCREASES PROFITS

WHAT ARE THE STANDARD BAR LAYOUT DIMENSIONS FOR DIY?

HOW MUCH DO DRAFT BEER SYSTEMS COST?

WHAT DOES IT COST TO BUILD A COMMERCIAL BAR?

BAR EQUIPMENT COST TO BUILD A COMMERCIAL BAR

BAR DESIGN IDEAS – HOW TO DESIGN COMMERCIAL BARS FOR ADA

TOP LIST OF COMMERCIAL BAR DESIGN FINISHING IDEAS

PLANNING A RESTAURANT BAR – HOW MUCH SPACE DO YOU NEED?

——————————————————————————————————–

Need Help Completing Your Bar Plan? Contact Us Today!

——————————————————————————————————–

DISCLAIMER: The above video and description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. This helps support the channel and allows us to continue to make videos like this. Thank you for the support!