SPLIT CASE PUMP MODULE
Page 7-6
15 July, 2019
IVEK Corp.
P07R002P
3. Connect the inlet tubing to an appropriate cleaning solution supply container.
4. Cycle pump in continuous mode at a high volume and rate to flush the cleaning solution through the entire liquid path.
NOTE
Routine flushing with a compatible solution after shutdown may provide sufficient cleaning for many applications.
7.5.2
Storage Options.
Storage refers to any extended time that the system remains idle. The main concern is liquid drying in the piston/cylinder
area, causing the piston to freeze in the cylinder. The duration of idle time requiring storage procedures is based on the
liquid being pumped, the Pump Module configuration, and the operating environment. The system can either remain
wetted with cleaning liquid, disassembled, or a liquid loop can be created.
7.5.2.1
Wetting With Cleaning Liquid
This option involves leaving the liquid circuit and Pump Module assembled in place. Load the liquid circuit with a compatible
cleaning liquid and leave the system wet until the next use when the stored liquid can be purged during setup for operations.
7.5.2.2
Disassembling
If it is desired not to leave cleaning liquid in the system, after rinsing with cleaning liquid as described in Section 7.5.1.1,
empty the system of cleaning liquid as described in Section 2.7.
Disassemble the liquid circuit and Pump Module, remove the piston from the cylinder and store the component parts disassembled until
the pump is again required. The instructions for disassembling the Pump Module are found in Section 7.5.5 of this chapter.
NOTE
If applicable, the disassembled liquid circuit and Pump Module components may be immersed and soaked or
further cleaned in an ultrasonic cleaning device using a compatible cleaning solution.
7.5.2.3
Liquid Loop
Fill a loop of flexible tubing with a compatible cleaning liquid or other chemical that will thin or neutralize the last liquid
pumped. Connect one end of the tube to the pump inlet port and the other to the outlet port. Cycle the pump a few times
in any operational mode to insure the piston and cylinder are wetted by the cleaning liquid. With this loop positioned
above the pump head, the ceramic surfaces and seal areas will stay moist and mobile for extended idle periods.
7.5.3
Extended Storage
If a pump is to be stored assembled for an extended period of time, it is recommended that after cleaning, the piston and
cylinder be dried before reassembly or stored separately in protective packaging. Wet components will have a tendency to
bind after materials have evaporated, leaving residue.
7.5.4
End Cap And Seal Assembly
The end cap and seal at the front of the Pump Module serve to contain liquid within the pump.
When properly maintained in a clean condition, the original seal may be expected to last for extended periods. If removed
for any reason, the seal should be carefully cleansed of all foreign particles prior to reassembly. The seal seating area
must also be free of particles and scratches to prevent leaks when reassembled.
