Siemens 6SL3210-1SB11-0UA0 [283/318] Biocide additives only if required

Siemens 6SL3210-1SE23-2AA0 [283/318] Biocide additives only if required
Cooling circuit and coolant properties
10.2 Coolant requirements
Manual
Manual, 01/2011, 6SL3097-4AC10-0BP2
283
10.2.4 Biocide additives (only if required)
Closed cooling circuits with soft water (°DH>4) are susceptible to microbes. The risk of
corrosion caused by microbes is virtually non-existent in chlorinated drinking water systems.
If Antifrogen N antifreeze is used with a concentration of 20% or higher, it can be assumed
that there is an adequate biocide effect.
The following types of bacteria are encountered in practice:
Slime-forming bacteria
Corrosive bacteria
Iron-depositing bacteria
The type of bacteria determines the suitability of a biocide. At least one water analysis per
year (to determine the number of bacterial colonies) is recommended. Suitable biocides are
available, for example, from Nalco (Manufacturer: Nalco).
We recommend adding partial doses of Nalco N 77352 (ONDEO Nalco;
http://www.ondeonalco.com) twice a month, rather than adding an entire dose all at once
(i.e. to introduce pauses in the dosing process).
Dosage: 5 – 15 mg/100 liters of cooling water. This product has no adverse effect on
Nalco 00GE056 corrosion inhibitor.
Note
The type of bacteria determines the biocide.
The manufacturer's recommendations must be followed as regards the dosage and
compatibility with any inhibitor used.
Biocides and Antifrogen N must not be mixed.

Содержание

Похожие устройства

Скачать