Mitsubishi S16R2-PTAW, Руководство по эксплуатации и техническому обслуживанию

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6-4
Chapter 6 COOLANT
Circulation metal-
lic causticity
(98 ± 2°C
[208 ± 3.60°F],
1000 Hr,
30 vol %
(E.G)
50 vol %
(P.G)
Metal speci-
men
Mass
change
Aluminum, Cast
iron, Steel, Brass,
Solder, Copper
±0.30 mg/cm 2
Appearance of the specimen
after testing
No visible signs of corrosion on the surface
excluding the area contacted to the spacer.
However, discoloration is acceptable.
Properties of
liquid after
testing
pH 7.0 to 9.0
pH change ±1.0
Pre-alkalinity change ±15 %
Precipitation 1.0 vol % or less
Appearance of liquid
No remarkable discoloration, separation
and gel generation.
Density
of ion
Fe, Cu, Al, Zn, Pb,
NH
4+
10 ppm or less
Circulation metal-
lic causticity
(88 ± 3°C
[190 ± 5.40°F],
1000 ± 2 Hr,
30 vol %
(E.G)
Metal speci-
men
Mass
change
Aluminum ±0.60 mg/cm 2
Cast iron ±0.30 mg/cm 2
Steel ±0.30 mg/cm 2
Brass ±0.30 mg/cm 2
Solder ±0.60 mg/cm 2
Copper ±0.30 mg/cm
2
Appearance of the specimen
after testing
No visible signs of corrosion on the surface
excluding the area contacted to the spacer.
However, discoloration is acceptable.
Properties of
liquid after
testing
pH 6.5 to 11.0
pH change Maximum ±1.0
Appearance of liquid
No remarkable discoloration, separation
and gel generation.
Condition of
parts
Pump seals
Free from any malfunction, liquid leak and
abnormal noise during operation.
Pump case inner surfaces and
blades
Free from remarkable corrosion
Table 6-2 LLC Quality Requirements
Property Standard