Testing and Balancing Hydronic Systems: Valves, Cv, Pump Laws, and the Report, with Thirty Practice Balances and 506 Practice Exercises

By Talor Press

Water systems do not tell you what they are doing. You have to measure them.

Thirty-seven lessons in six parts cover the arithmetic of hydronic balancing from a gauge reading to a finished report: pressure, head and specific gravity, open and closed systems, instruments and what they resolve, the balancing valve and its Cv, why flow follows the square root of the differential, other ways to read a flow, heat in water, reading the pump, the pump laws, trimming an impeller, pump and system curves, pumps in parallel, the index circuit and proportional balancing, tolerance, automatic valves, reconciliation, low temperature difference, and the report.

The book turns on the factor that quietly stops being 500. On an example glycol with a specific gravity of 1.0400 and a specific heat of 0.8700, the correct factor is 60 x 8.6632 x 0.8700 = 452.2190. Use 500 and 20 gpm across a 20 degree F difference reads 200,000 Btu an hour instead of 180,888, an overstatement of 10.6 percent that repeats on every glycol circuit in the report, invisibly. The same specific gravity belongs in the flow equation and in the head conversion too, so one wrong assumption travels three ways.

WHAT IS INSIDE
37 lessons, each with the rule in a shaded box, worked examples with every step shown, a note on the usual error, a note from the field, and four practice questions with answers
22 measured diagrams
12 worksheets with two variations each and full solutions
30 practice balances, each taken from the first reading to the decision
506 practice exercises in fourteen sets, every one with a worked solution
A 40-line Before You Balance checklist, twenty questions, six reference tables, a page on where to verify every figure, and a 61-term glossary

Every flow, differential, head, temperature, specific gravity, Cv, factor and tolerance printed here is an example. None of them is a figure for your job, a standard, or a code requirement. Yours come from the drawings and the specification, the designer, the valve and pump manufacturers, the fluid supplier, and the standards your contract and jurisdiction have adopted. This book designs nothing, sizes nothing, certifies nothing, and sets no tolerance.

166 pages. 6 x 9 inches.

• Format: Paperback
• Language: English
• ISBN: B0HKGFBFV8
• ISBN13: 9798175785099
• Release Date: September 2026
• Publisher: Independently published
• Length: 166 Pages
• Weight: 0.51 lbs.
• Dimensions: 9.0" x 0.4" x 6.0"