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Writer's pictureEagle Bay Refrigeration

Glycol Piping Design

Updated: Sep 11, 2019

Winery// Brewery//


How to maintain peak production

A properly sized chiller is necessary, but not sufficient to ensure your facility stays at peak production. A properly designed glycol piping system will distribute the cooling from your chiller evenly to your tanks. This ensures loads closer to the chiller do not obtain preferential cooling, and avoids extended pull-down rates for those loads that are further out.

The method

A simple and proven method of glycol piping that will evenly distribute chiller capacity is the reverse return piping system depicted in the schematic below.

2008 Ashrae Handbook: HVAC Systems and Equipment  CHAPTER 12 HYDRONIC HEATING AND COOLING SYSTEM DESIGN https://pdfs.semanticscholar.org/3216/1999ee21d3d6547c2c576d51a80f50c007ed.pdf

Extending the return piping leg as shown results in the same length of piping (supply + return) to all loads.  This results in an even pressure drop between the loads, and thus, even glycol flow and cooling supplied to each load.



Get in touch!


If you are:

  • Having issues with your existing piping system

  • Planning a system expansion and want to ensure the new piping integrates properly with your existing system

  • Or, looking for a brand new installation and looking for some assistance to ensure your piping is properly sized and routed for your facility 


We are here to help!  Give us a call, shoot us an email, or book online for a free consultation!




Image Credit:

2008 ASHRAE Handbook: HVAC Systems and Equipment

CHAPTER 12 HYDRONIC HEATING AND COOLING SYSTEM DESIGN

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