Coalescing filter element with drainage mechanism

A system to remove entrained lubricant from a compressed gas, the system comprising:

• a shell having an inlet port and a discharge port;
• a first stage positioned in the shell, the first stage being configured to change a direction of flow of gas entering the shell through the inlet port;
• a second stage positioned in the shell near the first stage, the second stage being configured to remove lubricant droplets from the gas flow;
• and
• a third stage positioned in the shell near the second stage, the third stage being configured to remove entrained lubricant mist and aerosol from the gas flow, the third stage comprising a coalescing element, the coalescing element comprising:
• a substantially cylindrical outer screen positioned horizontally in the third stage;
• at least one filter positioned inside the outer screen and being coaxial with the outer screen;
• and
• a drainage system in contact with the at least one filter to drain lubricant out of the at least one filter and to provide a flow path for the lubricant to the outer screen.