Reliable, Robust

Airwolf Filter Corp has successfully completed all certification testing required by the FAA for its 400 Series wet vacuum pump, a follow-on to its 200 Series wet pump launched one year ago. The new 400 Series is applicable for all piston aircraft fitted with de-icing boots and is expected to find wide acceptance with the pilot community due to its long life and guaranteed reliability.

The Series 200 and Series 400 are the only certified new wet pumps available on the market, and the only ones approved for all piston aircraft engines. Series 200 pumps drive the vacuum system, while the 400 Series activate deicing boots.

The 400 Series is in production now and will be ready for shipment by September of this year.

The certification tests included continuous runs of 300 hours, including one of 2000 hours; proof of successful, repeated operation at temperatures of -50 degrees F; and maintenance of maximum vacuum during all runs. Airwolf guarantees its newly-manufactured wet pumps for 2,000 flight hours or 10 years, allowing them to operate reliably for the TBO of the engine.

The Airwolf 400 Series pump replaces all 400 series dry pumps, regardless of the original manufacturer, as well as long out-of-production wet pumps by Pesco and Garwin. The new Airwolf wet pump is a direct replacement for all existing pumps, with no modifications necessary for installation.

Computer-aided manufacturing allows Airwolf to meet tighter tolerances and more accurately machined chambers and vanes than was possible on pumps designed more than 40 years ago.

Airwolf wet vacuum pumps are machined from aluminum billet and employ cast-iron liners, and precision ball bearings superior to those used in dry pumps. The soft, oil-impregnated graphite vanes are robust - four times thicker than those in dry pumps - and are lubricated by a thin mist of filtered engine oil.

"Dry vacuum pumps are very unreliable," explained Airwolf's John Kochy. "Unlike any other aircraft component, most dry pumps usually fail well before TBO. This is a serious safety issue for pilots who depend on their gyros and de-icing boots. We believe all our products maker flying safer, and the introduction of the 400 Series is testament to that philosophy."

FMI: www.airwolf.com