Explosion-Proof Vent Valve

An Explosion-Proof Vent Valve is an engineered safety component that provides dual functionality:
✔ Daily air ventilation to balance pressure inside sealed enclosures
✔ Emergency pressure relief when internal pressure exceeds a safety threshold

It combines microporous ePTFE membrane for daily Waterproof, breathable performance, with a pressure-activated rupture mechanism that vents gas instantly in overpressure scenarios—such as thermal runaway in lithium batteries.

Key Benefits

• Pressure Relief for Safety
  Releases excess pressure to prevent battery pack swelling, casing rupture, or explosion.

• Environmental Protection
  Blocks water, dust, and contaminants from entering your device—IP67/IP68 rated.

• Continuous Venting
  Maintains internal pressure balance through ePTFE gas permeability.

• Customizable Design
  Burst pressure, dimensions, installation method, and logo can be tailored to your project.

• Reliable Durability
  Withstands high temperatures, chemicals, UV exposure, and vibration.

Applications

• EV and ESS Battery Packs
  Prevent dangerous internal pressure buildup in lithium-ion cells.

• Power Tools and E-Mobility
  Miniature venting protection for handheld tools and small battery systems.

• LED Lighting and Cameras
  Protects outdoor lights, CCTV, and surveillance equipment from condensation and water ingress.

• Telecom Enclosures
  Maintains pressure balance in base stations and communication nodes.

• Medical Devices and Industrial Equipment
  Reliable protection for sealed electronics exposed to temperature and pressure changes.

Why PUW?

• Over 10 Years of Membrane Venting Expertise
  In-house ePTFE production and valve integration.

• Full OEM/ODM Capability
  Tailor pressure, material, design, and labeling for your product.

• ISO/IATF Certified
  ISO 9001 and IATF 16949 ensure automotive-grade quality control.

• Global Export Support
  PUW ships to 100+ countries with on-time delivery and tech support.

Frequently Asked Questions

Q1: What’s the difference between a vent and an explosion-proof vent?
A regular vent allows gas to escape slowly for pressure balancing. An explosion-proof vent adds a rupture point to release pressure rapidly in emergency situations.

Q2: Can I choose my own burst pressure and size?
Yes! PUW offers full customization of burst pressure (3–30kPa), dimensions, venting rate, and installation type.

Q3: Does the membrane allow water to enter?
No. The ePTFE membrane is hydrophobic and oleophobic, ensuring it blocks water and oil while allowing air to pass.

Q4: Can I request samples?
Of course! We support sample delivery, small-batch trials, and fast prototyping.