APPLICATION AND MAINTENANCE OF CAPILLARY IN INDUSTRIAL CHILLER

https://www.sstubecn.com/stainless-steel-tubing/stainless-steel-capillary-tubes.html

Capillary refers to a tube with a very small inner diameter. In an industrial chiller system, a capillary refers to a copper tube within 1-2 mm. What is the role of the capillary in the chiller?