Automatic Filters

Protect Reverse Osmosis Membranes – RO membranes work at the ionic level which is 12 orders of magnitude smaller than a grain of sand. Particles larger than a red blood cell can clog or even damage these membranes. A pre-treatment system must be in place to prevent these potentially damaging particles from coming in contact with membrane surfaces. A media barrier is the best line of defense against these particles. However, a 1 or 5 micron barrier will plug up very rapidly if depended upon solely to pre-treat the influent. The first step in a pre-treatment system is often best performed by a screen filter. A screen media provides a positive barrier through which inorganic or organic particles larger than the screen apertures cannot pass. Add automatic self-cleaning capabilities to this filter and you have a system that needs no commodity elements, no routine labor and no personal management. These self-cleaning screen filters work autonomously once installed and commissioned. ORIVAL, Inc. has been providing automatic filters for RO pre-treatment for over twenty-four years. Filter sizes range from ?” to 32” with screen apertures down to 5 microns. Manifold systems can be provided with multiple automatic filters for flexibility and redundancy when flow cannot be interrupted for maintenance or repairs. Their water efficient self-cleaning mechanism does not require filter units to be taken off-line for cleaning but provide clean filtered water downstream at all times. Materials of construction are chosen for the application whether fresh, effluent, brackish, sea water or brine.


213 S. Van Brunt St.
Englewood, NJ 07631
United States