Tuttnauer 2301006, Operation & Maintenance Manual

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Page 10 of 117 pages
2.5 Water Quality
2.5.1 Steam to Steam Generator
The distilled or mineral – free water supplied to the steam to steam generator
should have the physical characteristics and maximum acceptable level of
contaminants indicated in the table below:
Physical Characteristics and Maximum acceptable contaminants levels
in water or steam, for steam generator
(
In compliance with ISO 11134 and ISO 13683).
Evaporate residue
<
15 mg/l
Silica
<
2 mg/l
Iron
<
0.2mg/l
Cadmium
<
0.005 mg/l
Lead
<
0.05 mg/l
Rest of heavy metals
<
0.1 mg/l
Chloride
<
3 mg/l
Phosphate
<
0.5 mg/l
Conductivity
<
50 µs/cm
pH
6.5 to 8
Appearance
colorless, clean, without
sediment
Hardness
<
0.1 mmol/l
Compliance with the above data should be tested in accordance with
acknowledged analytical methods, by an authorized laboratory.
Attention:
The use of water for autoclaves that do not comply with the table above may
have severe impact on the working life of the sterilizer and can invalidate the
manufacturer’s guarantee
.
The use of soft water is strictly forbidden!
2.5.2 Water for the Vacuum System and the Drain Cooling
The feed water supplied to the liquid ring vacuum pump/ejector must meet the
following requirements:
♦
Hardness: 0.7 - 2 mmol/l, 4-12 °(German) of CaCO
3
,
7.2-21°(French) of CaCO
3
, 72- 215 mg/l of CaCO
3