Mitsubishi S16R-PTA2-C User Manual

6 COOLANT
Mitsubishi Diesel Engine S16R & S16R2 OPERATION & MAINTENANCE MANUAL
111
Pub. No. K29001-00320 Revision: 1
6 COOLANT
This chapter describes coolant to be used. In this manual, the word "coolant" represents a mixture of water and
LLC.
Water to Be Used
Use soft water which meets the requirements specified in the table below. If tap water meets the requirements,
the tap water can be used.
• In addition to the items specified above, turbidity must be below 15 mg/liter.
• Basically, the water quality must be within the range of the recommended values, however,
up to the limit value is acceptable.
When you add water to coolant, use only the water that meets the water quality standard
specified in this Operation & Maintenance Manual.
* Otherwise, premature corrosion or overheating in the engine parts may occur.
Table 6-1 Water Quality Standard
pH
(25°C
[77°F])
Electrical
conductivity
(mS/m)
Total hard-
ness
M
alkalinity
Chlorine
ion
Sulphate
ion
Total
iron
Silica
Residue by
evaporation
mg/l
Recom-
mend
value
6.5 to 8.0 ≤ 25 ≤95 ≤70 ≤100 ≤50 ≤1.0 - ≤250
Limit value 6.5 to 8.5 ≤40 ≤100 ≤150 ≤100 ≤100 ≤1.0 ≤50 ≤400
Main harm Corrosion
Scale
formation
Corrosion
Scale
formation
Scale
formation
Scale
formation
Corrosion Corrosion Scale
formation
Scale
formation
Scale
formation

Mitsubishi S16R-PTA2-C Specifications

General

Brand	Mitsubishi
Model	S16R-PTA2-C
Category	Engine
Language	English