
Typically, lubricant stressors in compressors include moisture, extreme heat, compressed gas and air, metal particles, gas solubility, and hot discharge surfaces. Prior to the selection of a compressor lubricant, one of the primary factors to consider is the type of strain the lubricant may be subjected to while in service.

#Air compressor oil series#
Axial compressors create compression through a series of airfoils. A mixed-flow compressor works similar to a centrifugal compressor but drives flow axially rather than radially. A centrifugal compressor functions by compressing gas using a rotating disk in a formed housing.

Reciprocating compressors compress gas through a piston or series of pistons driven by a crankshaft.Ĭentrifugal, mixed-flow and axial compressors are in the dynamic category. Rotary compressors function by forcing gases into smaller spaces through screws, lobes or vanes, while diaphragm compressors work by compressing gas through the movement of a membrane. Rotary, diaphragm and reciprocating compressors fall under the positive-displacement classification. The functionality is basically the same, with the main difference being that a compressor reduces volume and moves gas through a system, while a pump simply pressurizes and transports liquid through a system.Ĭompressors can be divided into two general categories: positive displacement and dynamic. In simplified terms, one can think of a compressor as a gas-like pump. Compressors are designed to intensify the pressure of a gas by reducing its overall volume. Many different compressor types are available, but their primary role is almost always the same.

To comprehend the vital role lubrication plays in compressors, you must first understand their function as well as the effects of the system on the lubricant, which lubricant to select and what oil analysis tests should be performed. Commonly referred to as the heart of any air or gas system, these assets require special attention, particularly their lubrication. Compressors are an integral part of almost every manufacturing facility.
