💧 HDPE SDR-11 Pipe Head Loss, 20% Propylene Glycol Antifreeze Gallons & VFD Pump

Geothermal Loop Pumping & Antifreeze Calculator

Size commercial closed-loop geothermal distribution pumping: calculate Darcy-Weisbach head loss friction (Feet of Head through HDPE SDR-11 supply/return headers and bore loops), total loop fluid capacity (gallons), 20% non-toxic propylene glycol antifreeze inhibitor volume, and variable speed VFD circulating pump power.

1. Project & Operating Inputs

Total Geothermal Loop HDPE Piping (Linear Feet e.g. 48,000 ft Pipe)

Design Circulation Flow (Gallons / Minute - GPM e.g. 350 GPM)

Customer Bid Price for Exterior Header Piping & Vault ($)

HDPE Pipe, Electrofusion Couplers, Propylene Glycol & Labor ($)

2. Financial Breakdown & Yield

GEOTHERMAL LOOP HEAD & GLYCOL

Turnkey Header Piping Profit

Mechanical Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost