Lubricating oil is used in common centrifugal pumps
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Dear sea friends, what type of oil should be used in the centrifugal pumps commonly found in chemical manufacturing enterprises? Our company is currently using diesel engine oil (CD15W-40); is that not suitable? I’ve seen that many companies use anti-wear hydraulic oil (L-HM46). Which type is more appropriate? Do you have any good recommendations?
The commonly used hydraulic oil for general centrifugal pumps is VG46, which is the anti-wear hydraulic oil referred to by the poster as HM46. Specifically, it depends on the manufacturer of the pump in your unit – the user manual will indicate what type of oil is recommended. Then you can ask professional lubricant companies. After all, the viscosity of this CD15W-40 oil is not much different from that of the common 46 viscosity grade.
Lubricating oil L-HV-46 (summer) for centrifugal pump bearings； Lubricant L-HV-32 (Winter).
Anti-wear hydraulic oil or turbine oil can be used; generally, grades 32#, 46#, and 68# are employed. Depending on the operating temperature, it is necessary to ensure that the viscosity of the oil is at least 12 mm2/S at that temperature
Here, we usually use size 68 in summer and size 46 in winter
Check the lubricant parameters provided by the pump manufacturer and prepare the mixture accordingly. Exactly which oil is required involves the involvement of the lubricant testing department.
Anti-wear hydraulic oil is generally used, grades 32, 46, and 68, depending on the speed and temperature.
We use LDAB100# in summer and model 46 in winter