At minus 35 degrees, what lubricant should be used for industrial pumps?
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In Tonghua, Jilin, it’s currently around minus 15 degrees; in colder periods, it can drop to minus 35 degrees. The lubricating oil supplied by the manufacturer for the pump is N46# machine oil – is this oil suitable? Is there anything I need to be careful about?
At the current temperature, VG32# lubricant is sufficient; the oil temperature with this lubricant should generally not exceed 65℃
Do you mean that 46# won’t work and it needs to be completely replaced with 32#, is that right?
Under conditions that ensure proper lubrication, it is preferable to use lubricants with a low viscosity; the viscosity of the oil should be at least 12 mm2/s at the operating temperature
It should be selected based on the pour point and freezing point of the lubricating oil