What type should be chosen for the lubricating oil pump of a compressor?
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What type should be chosen for the lubricating oil pump of a compressor? Which type is better? What are the advantages and disadvantages of each? Please feel free to share your thoughts.
Generally, screw pumps or centrifugal pumps are preferred for high flow rates, while gear pumps are used for lower flow rates. With the current level of technology, none of the types of lubrication pumps pose any problems.
It’s either a screw pump or a gear pump; it depends on the amount of lubricating oil and the pressure in the compressor
It seems that screw pumps and gear pumps are the ones commonly used these days; other types are less common. The choice probably depends on flow rate and pressure, with screw pumps offering a higher flow rate.
Gear oil pumps are quite good; our factory uses them a lot.
Screw pumps are widely used due to their high flow rate and stable pressure. There are also those that use gear pumps.
Theoretically, both screw pumps and gear pumps can be used, but the quality of gear pumps in China is relatively poor; therefore screw pumps are a better choice. They have less internal leakage compared to gear pumps. Usually, they are three-screw types, with lower power consumption as well as less vibration and noise
Either a screw pump or a gear pump will work. Screw pumps are chosen due to their stable operation and widespread use.
It mainly applies to media, which are screw pumps and gear pumps.
I think gear pumps are more common; the choice also depends on the oil pressure and the amount of oil to be supplied.
They are generally positive-displacement pumps, with few being centrifugal types
Generally speaking, screw pumps are preferred for high flow rates, as they offer high flow capacity and stable pressure. Centrifugal pumps are noisier, their pressure is prone to fluctuations, and gear pumps should be chosen for applications requiring lower flow rates.
For high pressures, MAAG gear pumps or IMO screw pumps are used; for pressures not exceeding 15 bar, ROTAN JOHNSON internal gear pumps are employed
It depends on the required operating conditions: for centrifugal systems, screw pumps are generally used. For centrifugal compressors, one pump is usually responsible for both lubrication and control. Self-protection systems require a continuous and stable flow rate and pressure, which is why screw pumps are employed in such cases. A reciprocating compressor is lubricated and generally operates at a low speed, so a gear pump is sufficient