III. Installation
Line Sizing
Contact Haskris for help: Haskris is available to review pipe runs, pressure drop, etc. and make
recommendations for individual sites.
Approach to line sizing
• Size all interconnecting hose and piping equal to or larger than the connections on the chiller.
• Pressure drop in the external piping is a function of fluid flow rate, pipe inner diameter, pipe
length, the number and type of fittings, and other factors.
• Generally, external piping should be sized to minimize pressure drop. Approximately 5 psi
(0.34 bar) or less is a good goal.
For applications requiring approximately 8 LPM (2.1 GPM) or less
• If the total straight pipe length is less than 90 ft (27.4 m) use 1/2” nominal pipe size (ID).
• If the total straight pipe length is less than 250 ft (76.2 m) use 5/8” nominal pipe size (ID).
• If the total straight pipe length is less than 475 ft (144.8 m) use 3/4” nominal pipe size (ID).
For applications requiring approximately 16 LPM (4.2 GPM) or less
• If the total straight pipe length is less than 25 ft (7.6 m) use 1/2” nominal pipe size (ID).
• If the total straight pipe length is less than 75 ft (22.9 m) use 5/8” nominal pipe size (ID).
• If the total straight pipe length is less than 140 ft (42.7 m) use 3/4” nominal pipe size (ID).
• If the total straight pipe length is less than 550 ft (167.6 m) use 1” nominal pipe size (ID).
For applications requiring approximately 23 LPM (6.1 GPM) or less
• If the total straight pipe length is less than 40 ft (7.6 m) use 5/8” nominal pipe size (ID).
• If the total straight pipe length is less than 75 ft (22.9 m) use 3/4” nominal pipe size (ID).
• If the total straight pipe length is less than 300 ft (91.4 m) use 1” nominal pipe size (ID).
To Next Page
Loading...
Need help?
General
