Hydronic System Balancing Calculator

Calculate balancing valve settings and flow distribution for hydronic systems.

Design flow rate for this branch.
GPM
Measured differential pressure across circuit.
psi
Design differential pressure for circuit.
psi

Results

Actual Flow Rate-GPM
Flow Error-%
Additional DP Required-psi
References: ASHRAE Handbook - HVAC Systems and Equipment, Chapter 38. Hydronic system testing, adjusting, and balancing.