HVAC 088 capillary tubes metering device

The capillary tube is a fixed metering device. it restricts the flow of refregrant from a HP liquid to a Low Pressure saturated mixture.
It is also an expansion device as it allows refrigerant to expand on the other side.
It is sized based on the size of the tubing, length of the tubbing and the number of tubes used.

Here are some excellent resources related to Cap tubes, learn more!


‪@acservicetechchannel‬ has a great video on capillary tubes
   • Capillary Tube Metering Device and Ev...  

JK Brown lead me to this resource capillary tunes theory and practice by Henry Ahrens an RSES article. http://www.rses.org/assets/serviceapp...




A great article form the news on capillary tubes part 1
https://www.achrnews.com/articles/142...
All You Need to Know About HVAC Capillary Tubes part 2
https://www.achrnews.com/articles/142...

‪@RonWalkerHVACTrainingSolutions‬ has a nice video on Cap tubes with much more detail
   • Capillary Tubes in 15 Minutes  

tools and capillary tubing
http://www.jbind.com/products/product...


from the engineering view point
https://www.brighthubengineering.com/...

The capilary tub sizing chart I used
http://www.refmech.com/wp-content/upl...


The Capillary tubing I used
https://www.supco.com/web/supco_live/...