Calculating Maximum Pumping Distance
1. Obtain the maximum horizontal tubing length (L ) from
2. Take 3% of the maximum horizontal tubing length (L) in meters and multiply the result
by the vertical distance (Lvert):
C = 0.03 x (L) x (L vert)
3. Subtract this product (C) from the maximum horizontal tubing length (L) to obtain the
maximum pumping distance (Lmax) in consideration of the specific vertical lift:
Lmax = L - C
Note: The result is the maximum pumping distance (Lmax), including horizontal and vertical
tubing runs, that is obtainable for the particular flow rate, tubing I.D. and viscosity of syrup
specified.
To calculate the losses in the system in feet obtained the maximum horizontal tubing length
in feet and multiply by 1% instead of 3%.
Example
1. The tables indicate that heavy soda syrup with 15 ml/sec (1/2 oz./sec) flow-rate (per
the example above) can be sustained over a horizontal distance of 152m (500 ft.) when
10 mm I.D. (3/8") tubing is used. Therefore; L = 152 m.
2. C = (0.03 x 152) x 6.7m = 121.5 m
3. Lmax = 152 - 30.5 m = 121.5 m; Lmax = 121.5m
The results indicate a 121.5m tubing length (horz./vert.) is possible, while the example only
requires a distance of 113m.
Note: If the example above resulted in a value that was equal to or less than the necessary
total tubing run, the installer would need to consider a larger I.D. tubing or installation of a
pump(s) in series using the SHURflo Vacuum Regulator.
