Donaldson earns CARB OK for 1991-2002 diesels

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Donaldson Co., a manufacturer of filter systems and replacement parts, has announced the California Environmental Protection Agency’s Air Resources Board has verified the company’s diesel multi-stage filter (DMF) muffler system — with or without the Donaldson Spiracle crankcase filter system — for 1991-2002 model year diesel engines used in on-road applications operating on ultra-low-sulfur diesel fuel.

According to Donaldson, the DMF muffler uses series-mounted flow-through filters that can reduce tailpipe PM emissions by more than 70 percent; while application of the optional Spiracle crankcase filter brings total engine reductions to nearly 80 percent. With the CARB verification, this product is acknowledged to provide particulate matter (PM) reductions between 50 and 85 percent, qualifying it as a CARB Level 2 device.

“Donaldson is extremely pleased to receive this verification from CARB,” says Fred Schmidt, director of sales for Minneapolis-based Donaldson’s emissions group. “This Level 2 verification broadens Donaldson’s product portfolio and our ability to assist fleet owners in retrofitting their vehicles to meet the stringent CARB diesel reduction requirements. The Donaldson DMF muffler, combined with the Spiracle crankcase filter system, is a broadly applicable, cost-effective solution for reducing particulate matter emissions. It also meets the CARB’s proposed NO2/NOx standard, with a ratio of less than 20 percent.”

CARB’s Diesel Risk Reduction Plan requires that all existing vehicles and engines be evaluated and — wherever technically feasible and cost-effective — retrofitted, repowered, refueled or replaced to reduce diesel PM emissions. According to Donaldson, this product also meets the requirements of the EPA’s Voluntary Retrofit Program, and as a result of EPA CARB Verification Reciprocity, the product is available for air quality improvement initiatives across the country.