Flameless Explosion Vents

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The IEP-Hoerbiger EVN 3.0H explosion relief valve is designed for hygiene-critical dust explosion applications. It features an automatic re-closing mechanism for post-explosion sealing, EHEDG compliance for hygiene standards, and optimized CIP cleaning. The valve is versatile, compatible with various dust properties, and operates reliably across a broad temperature range.

• Automatic re-closing venting device for overpressure events
• Chamfered shape and gap-free construction for CIP cleaning
• Equipped with flame arrester to prevent flame transmission
• Valve plate closes immediately after pressure venting
• Designed for various dust groups with KSt max 300 bar * m/s and Predmax max 2.0 bar overpressure
• Operating temperatures: T= 120°C (EPDM gasket), T= 180°C (SILICONE gasket)
• Surrounding temperature range: -20°C to 80°C
• Maximum protected vessel volume with a single valve: 1.60 to 6.00 m³
• Designed according to European Pressure Equipment Directive 2014/68/EU

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The IEP-Hoerbiger EVN 2.0 series revolutionizes flameless explosion relief valve technology and they have been upgraded to EVN 3.0 Series. With a focus on safety, each valve size provides precise geometric relief areas to meet varying protection requirements. The valves have a quick response due to their standard opening pressure and are equipped with an opening detection system for enhanced safety monitoring. Constructed mainly from durable coated carbon steel, they offer robustness and can be customized with alternative materials for unique environments. The EVN 2.0 series prioritizes easy installation, low maintenance requirements, and operational versatility in all mounting positions. It effectively prevents flame escape and unwanted air inrush, ensuring absolute tightness after reclosing.

• Certified in compliance with EN 16009 standards for safety.
• Geometric relief area ranges from 499 cm² to 3905 cm², accommodating various valve sizes from 266EVN 2.0 to 735EVN 2.0.
• Opening pressure standard at 0.05 bar ± 20%.
• Components usually made from carbon steel with a coating, with special materials available upon request.
• Each valve includes an opening detection system as a standard feature.
• NC version is for non reclosing to combine with flap valves as explosion isolation barriers

• Indoor Explosion Venting – Flameless Venting
• IEP BRILEX single-section design Explosion Vents with Ceramic Filters for dust explosion venting
• Bursting disc and filter within rectangular casing
• Filter consists of five rigid porous ceramic filter cartridges
• Used cartridges can be replaced after an explosion
• IEP BRILEX IndoorVent offers highest known venting efficiency and unlimited use
• Cost-effective solution for all industries
• Certified for reduced explosion pressures and Kst values
• IndoorVent can be re-used after changing filter cartridges and explosion vent
• Delivered as complete units with pre-installed explosion vent and monitoring sensor
• Approved and certified according to ATEX 100 standard and DIN EN ISO 9001:2008