Warrendale, Pa., February 17, 2006 -- Siemens Water Technologies has added a higher capacity model to its line of Barrier M UV disinfection systems for potable water applications.  The Barrier M Model 1250 can handle flowrates up to 2.33 mgd (1,616 gpm) at a transmittance level (measured at 254 nm in a 1-cm cell) of 98%. 

Like the existing 275, 525 and 900 Barrier M models, the 1250 model has been certified according to the DVGW W294 Protocol to provide a minimum Reduction Equivalent Dose (RED) of 40 mJ/cm2.  As a result of this certification, the EPA’s UV Disinfection Guidance Manual will grant each of the models a 3-log inactivation credit for Cryptosporidium and Giardia. 

Ideally suited for small- and medium-sized community drinking water systems, the Barrier M UV system supplies a cost-effective, reliable and operator-friendly solution.  Adding the Barrier M UV system to other disinfection processes provides a multi-barrier approach, and ensures complete inactivation of all waterborne pathogens.  The Model 1250 utilizes the same compact reaction chamber as the lower capacity models to enable easy, flexible installation, especially in retrofit situations where space is limited.

The Barrier M UV disinfection systems are part of the Wallace & Tiernan product line from Siemens Water Technologies.  Barrier is a registered trademark of Siemens or its affiliates.