Alfa Laval Toftejorg TZ-67, Инструкция по эксплуатации

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5 Operation
TZ-67
5.1 Normal operation
Cleaning Media
Use only cleaning media compatible with stainless steel AISI 316/AISI 316L, PFA, A4, ACO212CF and PEEK. Please note
that PEEK is not resistant to concentrated sulfuric acid. Normal detergents, moderate solutions of acids and alkalics will be
acceptable. Aggressive chemicals, excessive concentrations of chemicals at elevated temperatures as well as hydrochlorides
should be avoided. If you are in doubt, contact your local Alfa Laval sales office.
Pressure
Avoid hydraulic shocks. Increase pressure gradually. Do not exceed 12 bar inlet pressure. Recommended inlet pressure
appears from Technical Data (page 34). High pressure in combination with high flow rate increase consumption of wear parts.
High pressure also reduces the cleaning effect.
Draining using compressed air
If the machine is drained using compressed air, then the compressed air pressure must not cause the machine body rotation to
exceed 1.5 rpm (corresponding to approx. 40 sec. per rev of the body) in order to avoid risk of machine breakdown.
Draining should always be done inside the tank.
See paragraph 4.4 Specific conditions for safe use in accordance with ATEX/IECEx certification (page 13).
Steam cleaning
If stream cleaning is done through the machine, the steam pressure must not cause the machine body rotation to exceed 15
rpm (corresponding to approx. 4 sec. per rev of the body) in order to avoid risk of machine breakdown. See paragraph 4.4
Specific conditions for safe use in accordance with ATEX/IECEx certification (page 13).
Temperature
The maximum recommended cleaning fluid is 95
o
C. The maximum recommended steam temperature is 140
o
C. The maximum
ambient temperature is 140
o
C.
See paragraph 4.4 Specific conditions for safe use in accordance with ATEX/IECEx certification (page 13).
After use cleaning
After use flush the machine with fresh water. Cleaning media should never allow to dry or settle in the system due to possible
"salting out" or "scaling" of the cleaning media. If cleaning media contains volatile chloride solvents, it is recommended not to
flush with water after use, as this might create hydrochloric acid.
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