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Vents

Dual Stage Burst Vent - Donaldson

Donaldson Company, Inc.
Dual Stage Burst Vent - Donaldson
Dual Stage Burst Vent - Donaldson
Dual Stage Burst Vent - Donaldson
Summary

  • Dual-stage burst vent for battery pack pressure relief
  • Rapid degassing capability: 25 L/s @ 300 mbar
  • Ingress protection: IP67, IP68, IP69K
  • Hydrophobic & oleophobic Tetratex® ePTFE membrane

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Description Vendor

Dual Stage Venting Solutions - Dual Stage Burst

  • The Dual Stage Burst vent from Donaldson is a low-profile battery venting solution designed to provide continuous pressure equalization and ingress protection during normal operating conditions.
  • If internal battery pack pressure exceeds the typical opening pressure of 250 mbar, burst pins pierce the membrane, allowing rapid pressure relief of approximately 25 liters/second at 300 mbar. This burst vent function helps protect battery pack integrity by enabling fast degassing during abnormal pressure events.
  • The vent incorporates hydrophobic and oleophobic Tetratex® ePTFE membrane technology to protect against water, dust, and contaminants while maintaining airflow for pressure equalization. A retention cap with burst pins, integrated sealing components, and flexible interface options support reliable installation and operation within battery pack housings.

Key features

  • Low-profile dual-stage vent design for battery pack pressure management
  • Pressure equalization during normal operation (17.8 L/h @ 10 mbar)
  • Burst vent functionality providing rapid pressure relief (25 L/s @ 300 mbar)
  • Opening pressure: 250 mbar
  • Tetratex® ePTFE membrane with hydrophobic and oleophobic protection against contaminants
  • Proven gravel-impact durability validated to ISO 20567-1:2017
  • Ingress protection ratings: IP67, IP68, IP69K
  • Quarter-turn bayonet and screw-fit interface options for flexible installation
  • Integrated sealing system with O-ring for reliable enclosure sealing

Technical specifications

  • Minimum Airflow During Normal Operation: 17.8 liters/hour @ 10 mbar
  • Opening Pressure (Typical): 250 mbar
  • Degassing Airflow (Typical): 25 liters/sec @ 300 mbar
  • Ingress Protection (IP) Grade: IP67, IP68, IP69K*
  • Membrane: Hydrophobic & Oleophobic Tetratex® ePTFE
  • Interface Options:
    • Bayonet: ¼ turn – various thicknesses
    • Screw-Fit: M32 x 1.5 Thread
  • Temperature Range: -40°C to 125°C
  • Size: 51 mm Diameter, 13.7 mm Height (above enclosure)

Application areas

  • Battery Electric Vehicles (BEV)
  • Hybrid Electric Vehicles (HEV)
  • Heavy-duty vehicles
  • Battery energy storage systems (BESS)
  • Commercial battery packs

Contact us

  • Since 1915, Donaldson's innovation has driven them to develop new technologies in order to solve the world's most complex filtration challenges. Interested? Please contact Donaldson by filling in the contact vendor form.
Donaldson Company, Inc.

As a global leader in the filtration industry, Donaldson Company helps solve some of the world's most complex filtration and contamination control challenges. Our filtration technologies and products are used every day in a variety of industries and environments, including aerospace, agriculture, construction, food and beverage, manufacturing, mining, power generation, transportation and many more. Our success comes from our 13,000+ employees, the support our customers receive, and more than 140 manufacturing and distribution centers on six continents.

Proven filtration, future redefined.

Our alternative power filtration solutions are designed to reduce dependence on fossil fuels, lower greenhouse gas emissions, and enable greener operations, all while maintaining top-tier productivity levels. For more than 20 years, Donaldson engineers and advanced materials experts have worked collaboratively with leading OEMs and Tier 1 / Tier 2 suppliers to develop customized solutions that meet specific fuel-cell application requirements in critical areas. Donaldson offers customized solutions that incorporate high efficiency media and carbon layers to effectively address the sources of fuel cell contamination.

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