Proudly representing Anderson Separators for over 27 years. Questions? Call 1-201-419-6111 ext. 28 or

AFS Series Filter Separators

Anderson Filter Separators are an integral part of Compressor Stations, Underground Storage Projects, Gate Distribution Complexes, Refineries, Petrochemical and Natural Gas Processing Plants.
High Efficiency Multi-Stage Separator for Removal of Liquid and Solid Particles from a Gas Stream over Entire Operating Range.
100%  Removal of all Liquid & Solid Particles 3.0 Microns and Larger.
99% Removal of Solid Particles 0.5 to 3.0 Microns.
Capacity to Handle High Liquid Loads and Slugging.
Horizontal or Vertical Design.
Custom Designed for Individual Applications and Design Requirements.
Optional Filters for additional Solids Retention and Increased Filter Life.
Optional Separation Elements depending on Application.
Easy Replacement of Filters through Full Opening or Reduced Vessel Closure.
Superior Design with Substantial Savings.
Simple Maintenance with Quick Turnaround and Minimal Downtime.
Principal of Operation:

The Anderson Filter Separator is a multi-stage separator that provides optimal removal of both Liquids and Solids from a gas stream.   As the contaminated gas passes through the filter separator it must pass through several distinct regions or stages.  Each stage has a specific purpose, and the cumulative effect provides a virtual contaminant free gas.

First, the contaminated gas encounters a large inlet plenum, which contains the filter support tubes.  The gas stream velocity reduces in the plenum, and bulk separation occurs due to gravity.   Further separation occurs as a result of the filter support tubes.  The gas contaminants impinge on these tubes, coalesce into larger particles and drop to the lower portion of the inlet chamber.  In addition, as the gas tries to negotiate this maze of tubes, a centrifugal force is imparted on the gas.  This centrifugal force will remove liquid and solid particulate down to 10 microns.  The separated liquids and solids then drain to the sump.

Next, the gas must pass through the filter elements.  The solid particulate is captured on the surface of the filter, and in the depth of the filter media.  The fine liquid particles flow through the elements, and coalesce with other liquid particles to form larger particles.  These larger particles emerge from the inner core and are carried downstream to the final separation region. The filter elements are arranged in a triangular pith to provide the maximum number of filters, and filter area for a given vessel size.  These elements are arranged to provide equal flow through the Separation Chamber.  This stage utilizes one of several Anderson High Efficiency Separation Elements.  These elements will remove virtually all coalesced liquid flowing from the filter elements.

See Filter Separator in Action.
Download Series AFS Installation, Operation & Maintenance Manual
Get an idea of particle sizes.