Pulsafeeder Polymer Makedown Systems EN - Manual (Page 11)

Manual Polymer Makedown Systems
Installation, Operation and Maintenance Manual
72-910-MPMDS-E Rev A
Skid Layout and Components Page 11
Polymer Makedown Process

Process Start
This polymer makedown system utilizes a continuous makedown process. The makedown process is
started by moving the Main Selector Switch to the “Run” position. This will open the Inlet Water
Solenoid Valve and energize the Neat Polymer Injection Pump to add polymer to the water flow. The
system will produce made-down polymer continuously while in the “Run” mode.

System Adjustment – Refer to Figure 1

The Water Flow Meter can be adjusted to achieve the desired water flow rate by turning the
adjustment knob until the indicator ball settles on the correct flow rate.

Open the Calibration Column Fill Valve to divert neat polymer to the calibration column until
full; close the fill valve. Simultaneously open the Calibration Column Supply Valve at the
bottom of the column while closing the Neat Polymer Inlet Valve, and time the drawdown of
polymer from the column for 30 seconds. Record the volume consumed and simultaneously
close the Calibration Column Supply Valve at the bottom of the column while opening the Neat
Polymer Inlet Valve.

Calculate the actual flow rate of the pump and adjust to the desired rate. Repeat the calibration
process to confirm.

Adjust pump output as required and repeat calibration process to confirm adjustment.

System Operation for Polymer Makedown
 Turn the Main Selector Switch to the ‘Run’ position; leave in this position for the time required
to produce the made-down polymer required.

When complete, turn the Main Selector Switch to the ‘Flush’ position for approximately 1
minute. This allows incoming water flow to clean the injector nozzle and the static mixer of
residual polymer.
CAUTION: Failure to flush the system could result in significant fouling of the injector
nozzle, static mixer and related piping as the made-down polymer solidifies over time before
the next cycle.
 When the flush operation is complete, turn the Main Selector Switch to the ‘Off’ position.