W. L. Gore & Associates’ PolyVent Stainless Steel and PolyVent InSet

Two enclosure vents let users decide the type and performance level that their systems require. The GORE PolyVent Stainless Steel PMF200444 offers premium-level durability under the most challenging conditions in the field, while the GORE PolyVent InSet PMF200271 provides easy, cost-effective and nearly invisible integration.  

Designed for screw-in installation and a tight, reliable seal to the housing, The PolyVent Stainless Steel’s vent body, cap, and membrane-sealing technology use only 100% 1.4404 (316L) stainless steel, while the membrane, made of 100% ePTFE, performs with no backing material. Materials and construction provide resistance to both corrosion and chemicals and cleaners, including acid-, leach-, and oxidative-based chemicals, as well as high flammability resistance (non-flammable stainless steel; UL 94 VTM-0 membrane, and UL 94 V-0 silicone O-ring). The 5.65-mm-high, 9.25-g unit’s operating temperature range is −40°C to 125°C, and it complies with IP69K.

Capable of being installed from either the inside or outside of the housing, the PolyVent InSet offers greater production-line flexibility. When inside-mounted, all that’s visible from the outside is a 1-mm vent hole, which can improve design aesthetics. Snap-in installation simplifies both automated and manual production. Designed for enclosure volumes up to two liters, the unit meets a range of demanding industrial standards, including IP66, IP67, and IP68.