CDTi Receives EPA Verifications for Filters

Clean Diesel Technologies Inc., Ventura, Calif., a manufacturer and distributor of emissions control systems and products, has announced that it has received two emission reduction product verifications from the U.S. Environmental Protection Agency (EPA) for use in heavy-duty highway truck engines and off-road engines.

The Purifilter® EGR, featuring the company’s proprietary MPC® technology, is a passively regenerating diesel particulate filter that provides filtration and regeneration efficiency to remove particulate matter. The EPA first verified the filter for 2002 to 2010 heavy-duty highway truck engines in November 2012. In October 2013, the EPA extended the verification to cover all exhaust gas recirculation (EGR) and non-EGR heavy-duty highway engines certified with particulate matter emissions at or below 0.1 g/HP-hr. manufactured between 1993 and 2010. This verification extension means that it now can be applied to the majority of heavy-duty highway engines sold over the past 20 years.

In December 2013 the EPA verified Purifilter® OR for Tier 1 through Tier 3 (1996 to 2012) off-road engines with power ratings from 100 to 603 HP and certified with particulate matter emissions values of 0.2 g/HP-hr. or less. This filter is the off-road version of Purifilter EGR.

The filters now can be used by fleets under certain EPA-funded programs (a construction equipment rebate program and clean-diesel projects at ports).