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On 29 November, W. L. Gore & Associates launched GORE PolyVent Ex+ as the latest addition to Gore’s Protective Vents Screw-In Series, which is certified according to explosion-proof safety standards, IECEx and ATEX (these certifications enable global integration of the product with fewer certification efforts, saving labour and testing costs).

GORE PolyVent Ex+ has earned the IECEx and ATEX certification codes Ex II 2G Ex eb IIC Gb and Ex II 2D Ex tb IIIC Db, which describe general requirements for equipment, components and devices that are used in potentially explosive atmospheres. With this certification, PolyVent Ex+ is allowed in areas with potentially explosive atmospheres caused by combustible gases or dust as following:

Gas: All non-mining, above-ground applications (equipment group 2) in the Zones 1 and 2 with need for protection type “eb” (increased safety) for Equipment Category 2 Gb.

Dust: All non-mining, above-ground applications (equipment group 2) in the Zones 21 and 22 with need for protection type “tb” (standard protection by housing) for Equipment Category 2 Db.

"We developed this product to meet the needs of our customers who are working in industries that process, use or manufacture materials that may give rise to an explosive atmosphere," Peter Kroker, Gore PolyVent Technical Project Manager, explains. "The new Ex-rated GORE PolyVent Ex+ is the perfect fit for these tough environments. Ensuring that products and systems meet stringent IECEx and ATEX requirements is a complex, time consuming and costly process. Choosing GORE PolyVent Ex+ can easily speed up time-to-market while reducing costs in the certification process."

GORE PolyVent Ex+ offers additional features that truly deliver the Gore performance required in tough environments and add to the “safety aspect” for both operators and equipment. Due to its design, GORE PolyVent Ex+ offers:

Great performance, as all materials selected for designing GORE PolyVent Ex+ have been chosen as they support the vent’s long-lasting exceptional behaviour in the field. The vent body, cap and Gore’s creative, patented membrane-sealing technology only use premium 1.4404 (316l) non-flammable, stainless steel.

The latest GORE membrane, made of 100% ePTFE, delivers performance for pressure-equalisation customers expect, while achieving the highest flammability rating in its category (UL 94 VTM-0). Additionally, the silicone O-ring with the flammability resistance rating of UL 94 V-0 adds another layer of safety on which customers can depend. These high-quality materials combined with the GORE PolyVent Ex+ innovative construction ensure comprehensive flammability resistance, excellent corrosion resistance and great chemical robustness.

The GORE Membrane provides lasting oleophobic and hydrophobic protection. With an airflow rate of 1,600ml/min at 70mbar and an ingress protection rating of IP68/IP69k, PolyVent Ex+ reliably protects enclosures up to 20l for a wide range of temperatures.

"GORE PolyVent Ex+ is made of materials of the highest quality. But most importantly, these vents deliver the exceptional venting performance and reliable protection our customers have come to rely on. This new product rounds out the already extensive Screw-In product portfolio by fulfilling the need for a venting application in potentially explosive environments," Mr. Kroker concludes.

DPM

 

Suitable for equipment used in potentially explosive environments, the new IECEx and ATEX approved GORE PolyVent Ex+ offers reliable protection and venting performance to increase the lifetime of enclosures up to a 20 liter volume. (Photo: W. L. Gore & Associates)

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