Cornelius UF-1 - Calculating Flow Rates

UF-1 and UFB-1 Valves Training Manuai
Publication Number: 315222001OPR - 7 - © 2023, Marmon Foodservice Technologies Inc.
1.4 Calculating Flow Rates
Figure 8
The most frequent ratio is 5:1. The charts above list the breakdown for many ratios and flow rates. It is useful
to be able to calculate flow rates when a chart is not available.
An example of calculating the water and syrup flow rates given the finished drink flow rate and the water to
syrup ratio:
Given:
1. Finished Drink Flow Rate = 3.0 oz./sec.
2. Water to Syrup Ratio = 5 to 1
To calculate Water Flow Rate:
1. Calculate the Total Portions = Water Portion + Syrup Portion (example 5 + 1 = 6)
2. Calculate Syrup Flow Rate = Finished Drink Flow Rate ÷ Total Portions (examp. 3.0 oz./sec ÷ 6 = 0.5 oz./sec)
3. Calculate Water Flow Rate = Finished Drink Flow Rate – Syrup Flow Rate 
(example 3.0 oz./sec - 0.5 oz./sec = 2.5 oz./sec)
Prove the calculation is correct by adding water flow rate of 2.5 oz./sec + syrup flow rate of 
5 oz./sec = finished drink flow rate of 3.0 oz./sec.
Water flowing at 2.5 oz./sec and syrup flowing at 0.5 oz./sec achieves a ratio of 5:1 and 3.0 oz./sec. flow
rate.