Pulsafeeder Polymer Makedown Systems EN - Manual (Page 10)

Manual Polymer Makedown Systems
Installation, Operation and Maintenance Manual
72-910-MPMDS-E Rev A
Skid Layout and Components Page 10
Neat Polymer Supply Line
This line connects the source of the neat polymer to the Pulsafeeder Polymer Makedown System.
Please refer to Figure 1 on page 6. The neat polymer source must be located above the centerline of
the pump (flooded suction condition); ensure that the suction line has a gradual downward slope from
the tank to the skid suction connection. The purpose of this is to prevent air pocket(s) in the suction
line which could affect proper operation of the pump. Include whatever provisions you consider
necessary to facilitate maintenance and operation such as isolation valve(s), drain and/or flush
connections, etc., making sure that this sub-system enables SAFE OPERATION.
Discharge Line
This line connects the Pulsafeeder Polymer Makedown System to your served process. Please refer to
Figure 1 on page 6. If the injection point is below the dosing chemical source or if injecting into a low
pressure area such as the suction of a pump, an anti-siphon/ back pressure valve should be located as
close as possible to the injection point to prevent unwanted chemical feeding. Include whatever
provisions you consider necessary to facilitate maintenance and operation such as isolation valve(s),
drain and/or flush connections, etc., making sure that this sub-system enables SAFE OPERATION.
Electrical Connection
The control panel is provided with a standard plug for connection to 115V (+/-10%), 20A power to
operate. Be sure that the selector switch is in the “OFF” position before power is connected.
Initial Prime
The neat polymer pump must be primed before it can function within the system. This will require an
initial start of the pump. It is recommended that the system piping be filled with water before polymer
is introduced to the system.
1. Turn the Main Selector Switch to the “Flush” position (center) to initiate water flow.
2. Once water fills the system and begins to flow out of the system discharge, turn the Main
Selector Switch to the “OFF” position to terminate water flow.
3. Open the Calibration Column Fill Valve; this aids in pump priming by providing a vent path to
the calibration column, bypassing the Back Pressure Valve.
4. Depress the green “Prime” button to start the Neat Polymer Pump.
5. Observe polymer flow through the clear braided tubing connecting the pump discharge to the
system piping; when present the pump is primed.
6. Release the “Prime” button to stop the Neat Polymer Pump.
7. Close the Calibration Column Fill Valve.
8. The system is now ready to operate.