Donaldson launches new Dual-Stage Jet EV battery vents

July 07, 2024

Donaldson has expanded its battery venting systems range with the introduction of the Dual-Stage Jet. This new design enhances electric vehicle (EV) safety by offering rapid degassing capabilities and simplifying the installation process for Original Equipment Manufacturers (OEMs).

The Dual-Stage Jet uses Donaldson’s proprietary Tetratex® expanded polytetrafluoroethylene (ePTFE) membranes for enhanced protection from contaminants. It enables consistent pressure equalization with a minimum airflow of 97 lit/hr @ 10 mbar during normal operation. The hydrophobic membrane is comprised of small, randomly connected fibrils that create a permeable water barrier, providing continuous pressure equalization, while offering IP67, IP68, and IP69K ingress protection against water, dirt, and other contaminants. The membrane’s unique oleophobic treatment also helps the filter media repel oils, providing additional protection.

The Dual-Stage Jet is available in two configurations – screw-in/bolt-on or quarter-turn bayonet fittings. The former is likely to be preferred by agricultural and other heavy-duty vehicle manufacturers due to its flexibility for use in larger battery packs. The lighter bayonet fittings are expected to appeal more to the automotive sector, providing clear haptic feedback of proper installation.