© Meunier Technologies Inc. 2021 - All rights reserved
37
Periodic Maintenance
Inspection
A regular inspection should be made at least once per week. At minimum, this
inspection should comprise a visual inspection for leaks and verification of system
operating pressure.
Cleaning
The DICE
TM
needs to be cleaned periodically. The frequency of this cleaning depends on
the fluid used as well as operating conditions and environment. Internal cleaning should
minimally be done when there is a presence of deposit, scaling or crystals that may
obstruct the flow.
CAUTION
: The fluids used during the cleaning process must be compatible with the dosed
chemical and system materials. Refer to your chemical supplier.
Ball valve
The DICE
TM
ball valves need to be operated periodically. While the frequency of these
operations depends on fluid used, operating conditions and environment, we
recommend operating them every 3 months.
Keep a record of the ball valve operation.
*A valve operation is the action of fully opening and fully closing the valve.
CAUTION
: Prior to ball valve operation, ensure that the module pressure is released by closing
the outlet port valve and opening the evacuation valve. Operating the calibration column while there
is residual pressure remaining in the system can cause chemicals to spill out of the calibration
column.
Pressure relief and back pressure valve
The DICE
TM
back pressure and pressure relief valve diaphragms should be fully inspected
at least every three (3) years. If the diaphragm shows signs of wear, it should be
replaced. Follow the disassembly and assembly procedure indicated in the above
section.
CAUTION
: Strictly follow the warning note in the Disassembly and Assembly section prior to
pressure relief and back pressure valve servicing.
Pressure indicator and isolator
Note: No periodic maintenance is required on the pressure indicator and its isolator,
other than periodic visual inspection.
