9
Pump Calculations
Follow these steps to calculate the Number of Pulses Per Signal (N)
to reach a desired Injection Rate.
1. Identify operating pressure of system (
Dynamic PSI
).
2. Specify the volume of concentrate to be injected, per gallon.
3. Identify single pulse volume at the operating pressure identified in Step 1.
4.
DIVIDE
:
a. (
Volume to be injected per gallon
) / (
Single Pulse Volume
) =
Number of Strokes
needed per gallon.
b. If this is not a whole number:
i. Chose closest whole number to set – variation from desired injection will be minimal,
but fluctuations may be noticeable at very low or very high flow rates.
See “
USING THE PRESSURE RELIEF VALVE”
to decrease the Single Pulse Volume, to a volume
that divides evenly into the desired Volume to be injected per gallon.
Using the Pressure Relief Valve
Etatron
eOne pumps
should be installed
with a
Pressure Relief Valve
on the
injection line, between the pump and the
injection point.
This valve serves two purposes:
a. To vacuum relief in a siphon situation.
b. To make changes to the Single Pulse
Volume. Using the adjustment screw,
the amount of pressure that the eOne
pump experiences can be increased
above line pressure.
eOne
Pump
Pressure
Relief Valve
Injection
Point
