Automotive sensors must accurately and reliably measure, monitor and control critical system data in order to maintain fuel economy and safety. But heat and humidity can create pressure differentials that create over-pressurization, or vacuum conditions, inside the sensor. Either of these can cause faulty readings - or outright sensor failure, which can cascade to component or system failure.
GORE Automotive Vents can extend the precision and the service life of radar systems, oxygen sensors, humidity sensors and position sensors and actuators. For more than 20 years, many millions of our vents have been installed by the top 10 OEMs and Tier-1s, all over the world.
Our vents are engineered to manage challenging environmental conditions effectively, so sensors can operate more accurately and reliably. The construction of our expanded polytetrafluoroethylene (ePTFE) vents rapidly equalizes sudden or extreme pressure differentials, to ensure:
- airflow management to avoid condensation-related failures
- reliable sensor operation, which prevents over-pressurization or vacuum conditions within the sensor
- an effective fluid barrier that blocks ingress of water and automotive solvents or oils
- reliable protection from contaminants, ensuring that dust, dirt, and debris are blocked
Our engineered venting solutions can be customized to each supplier’s design. Regardless of the challenging conditions that a sensor may face, we can collaborate to engineer a reliable, long-lasting solution.
Gore offers qualified vents for a variety of sensor applications. We extensively test and evaluate each vent to ensure it performs consistently and reliably.
|Snap-Fit Vents||Adhesive Vents||Weldable Vents||Weldable Vents|
|Series number||AVS 200||AVS 44 (S), 98 (S), 99, 107 (S)||AVS 25, 26, 28, 29, 39||AVS 47, 48, 49, 50, 51, 52|
|Description||Black snap-fit vents comprised of ePTFE membrane with a polyester non−woven backing material integrated into a PBT housing for rugged environments||Grey circular vent with pressure sensitive silicone adhesive/All ePTFE membrane construction without backing material/Available in automated installation configuration||White circular cut part vent for welding installation/All ePTFE membrane construction without backing material||White circular cut part vent for welding installation/3-layer sandwich construction with PET subport material|
|Housing Material||PBT-GF30 (hydrostabilized)||N/A||N/A||N/A|
|O-ring material||Silicone 50° µIRHD||N/A||N/A||N/A|
|Outside diameter||14.3 mm||7.00 up to 19.05 mm||5.20 up to 14 mm||5.20 up to 14 mm|
|Operating temperature||Tmin = −40 °C
Tmax = +125 °C
|Tmin = −40 °C
Tmax = +150 °C
|Tmin = −40 °C
Tmax = +160 °C
|Tmin = −40 °C
Tmax = +125 °C
|Water entry pressure||> 80 kPa / 30 seconds||> 34.5 kPa / 60 seconds||> 60 kPa / 30 seconds||> 60 kPa / 30 seconds|
|Typical airflow||∼ 28 l / h / per part at 7 kPa
≙ ∼ 81 cm3 / min at 1.22 kPa
|~ 7 l/h/cm2
|~ 9.6 l / h / cm2 at 7 kPa
≙ ~ 28 cm3 / min at 1.22 kPa
|~ 32.5 l / h / cm2 at 7 kPa
≙ ~ 94 cm3 / min at 1.22 kPa
|Ingress protection class||
||depending upon proper housing geometry||depending upon proper housing geometry||depending upon proper housing geometry|
|Membrane characteristics||Hydrophobic and Oleophobic||Hydrophobic and Oleophobic||Hydrophobic and Oleophobic||Hydrophobic and Oleophobic|
|Enclosure size||Small to Large||Medium to Large||Small to Medium||Small to Large|
|Electronics Housing Material||All typical metal and plastic housing materials||All typical metal and plastic housing materials||Most typical plastic housing materials||Most typical plastic housing materials|
|Installation direction||From outside of housing||From outside of housing||From the inside or outside of housing||From the inside or outside of housing|
|Datasheets||GORE Automotive Vents - Snap-Fit Vents: AVS 14, 67, 70, 200 - Data Sheet||GORE Automotive Vents - Adhesive Vents: AVS 44 (S), 98 (S), 99, 107 (S) - Data Sheet||GORE® Automotive Vents - Weldable Series: AVS 47, 49, 50, 51, 52 and AVS 26, 108, 39, 28, 29|
Contact us to discuss your sensor application, and we’ll evaluate the application requirements and match them to a standard or custom venting product.
Do you currently use a GORE® PolyVent not shown in the chart?
Consider our next-generation products for enhanced performance at the same overall cost:
- If you currently use AVS 13, upgrade to our AVS 14. It offers a hydrostabilized vent body, and an enhanced EDPM O-ring for better temperature stability.
- If you currently use AVS 20 or AVS 46, look at our next-generation AVS 67. It offers a hydrostabilized vent body, and laser-marking capability for improved traceability.
Humidity sensors, position sensors, actuators, radar sensors and oxygen sensors each have specialized application requirements that must be met to ensure performance and reliability. Common challenges include extreme temperatures and pressure fluctuations, which can impact sensor reliability. For each set of challenges, GORE Automotive Vents for Sensors deliver reliable, long-lasting solutions.
Humidity sensor performance is dependent upon vent performance. For sensors to quickly respond to changes in ambient conditions, they must have consistently high airflow and moisture vapor transmission rates. Rapid pressure equalization is essential for maintaining accurate readings and for preventing sensor failure that can cascade to component or system failure. Our High-airflow vents facilitate rapid response in humidity sensors for higher performance and customer satisfaction.
Position Sensor and Actuator
Proximity to hot engine parts exposes sensors to extreme temperature fluctuations as well as aggressive under-hood gases and fluids. Either can cause erroneous readings or outright sensor failure, and subsequent component or system failure. GORE Automotive Vents rapidly equalize pressures, so position sensors and actuators consistently deliver accurate readings. Our small-diameter engineered vents are chemically inert, so they provide long-lasting protection against highly-aggressive gases and fluids
Radar sensors face the rigors of the road head-on. Typically mounted near the front fascia or bumper, they must survive weather extremes from ice to rain to heat waves, and road hazards from puddles to grit, oils and mud. GORE Automotive Vents provide superior protection, effectively repelling water, oils and particulates. Our performance-proven vents reliably protect sensitive radar equipment from water and harsh road contaminants - for the long haul.
To withstand operating temperatures that can exceed 250°C, oxygen sensors require extremely efficient venting with high airflow for rapid pressure equalization. At the same time, the vent must effectively protect the sensor from being contaminated by water, dirt, and other particulates. Our high-temperature oxygen sensor vent products are specifically engineered to perform in just these conditions. Made of 100% ePTFE, they are designed, tested, and proven to provide rapid response and reliable protection, even in temperatures above 250°C, and in harsh operating conditions worldwide.
Data Sheets, Installation Guides, 102.55 KB
With its new GORE® PolyVent Compact Series, W. L. Gore & Associates, Inc. introduces higher-performance venting in a smaller footprint. About 30% smaller than the widely-used PolyVent Snap-Fit product family, the new Compact Series is easier to integrate into even the smallest automotive electronic housings. It provides a higher level of protection for sensitive components like sensors, motors and control units, while providing reliable and rapid pressure equalization.
Approximately 30 percent smaller than other GORE Snap-Fit Vents, the compact series provides a higher level of protection for extremely small electronic components, where space is at a premium.
W. L. Gore & Associates has expanded its line of GORE® Automotive Vents to include the new Series: AVS 41 (P/N VE2048) venting solution, which is engineered specifically for powertrain components. This new vent improves component reliability by equalizing pressure, preventing contamination from water, dust, dirt, and other automotive fluids and simplifying design challenges, ultimately resulting in lower overall costs.
FOR INDUSTRIAL USE ONLY
Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations