15
6 Care, Cleaning and Maintenance
6.1 Cleaning
The diaphragm valves have to be cleaned if
- idle periods of the dispensing system exceed seven days, and/or
- a different type of product is to be dispensed and/or
- valves are disassembled for replacement of spare parts.
Liquid residues may be removed with several solvent. Chlorinated hydrocarbons will
obtain optimum results; acetone would be the best alternative among nonCHC solvents.
WARNING!
If chemical products are not properly handled, damage to health can result.
Observe general safety regulations for the handling of chemicals!
If diaphragm valve is cleaned after prolonged idle periods or for a switch to a different
product, be sure to place new Loctite
®
product bottle into the tank, see operating manual
of the used reservoir.
Priming of the feedline, see operating manual of the used controller.
Setting of dispensing parameters, see operating manual of the used controller.
6.2 Maintenance
To ensure trouble-free operation of the diaphragm valves 97135/97136 we recommend
servicing at regular intervals.
•
Every 6 months
Replace diaphragm
3
(Repair Kit), type no. 97271, order code no. 360444.
Following is a description of diaphragm valve cleaning, disassembly and reassembly
procedures.
