VIGILEX Explosion Vent Panels & Flameless Devices
This video presents the VIGILEX lineup from STIF, designed to protect industrial installations from the risks of combustible dust and gas explosions.
The focus is on two key solutions: standard explosion vent panels and flameless venting devices, purpose-built for safe pressure relief and containment in sensitive environments.
Company Background and Design Approach
STIF, founded in 1984, develops and manufactures bulk handling and explosion protection components at their 10 000 m² facility in western France. VIGILEX marks STIF’s entry into explosion vent products with options that include flat, curved, domed, or round panels.
They offer custom sizes and features such as FDA-compatible gaskets, anti-UV treatment, rupture detectors, and hygienic options.
STIF maintains strict quality control. Incoming materials are inspected and traced via laser-engraved serial numbers. Each explosion vent undergoes functional and mechanical testing according to EN 14797.
Upon passing quality checks, devices proceed to packaging and dispatch.
Product Categories
Explosion Vent Panels (VIGILEX VL / VD)
These panels relieve internal overpressure and direct flame away from equipment. They prevent structural damage and injury by acting as predetermined weak points. Applications include silos, filters, cyclones, and hoppers.
Variants include:
- VL (flat panels) for use under low to moderate vacuum or pressure.
- VL-R (curved panels) suited to cylindrical vessels.
- VD (domed panels) ideal for pulsating or high-vibration systems, e.g., filters and cyclones.
Panels come ready with integrated flanges and wide dust-proof gaskets. Options span EPDM, FDA-grade silicone, graphitic high-temperature seals, and stainless-steel constructions.
These vents carry ATEX certification under EN 14491 / EN 14994 / EN 14797 / EN 1127‑1 standards.
Flameless Venting Devices (VIGILEX VQ)
The VQ flameless devices enable explosion venting indoors without external ducting. They trap flames and particles internally while safely releasing pressure and gases. They protect equipment and personnel without costly vent piping .
Variants include:
- Standard VQ units for general industrial use.
- VQ curved versions to fit cylindrical vessels.
- VQ metal-dust units, the first to comply with EN 16009, certified for metal dust hazards.
- VQ stainless steel (SST), suitable for humid or food/pharma environments.
Sizes range widely. Low-weight versions operate at Pred ≤ 0.5 bar; heavy-duty types at Pred ≤ 2.3 bar.
Explosion Isolation Valve (VigiFLAP)
The VigiFLAP is a non-return valve that closes automatically under a pressure wave or flame event. It isolates downstream equipment like filters or cyclones, preventing flame backflow. Reset requires manual action.
Designs support stainless-steel or galvanized bodies and include optional sensors and flanges.
Accessories & Support Tools
VIGILEX offers accessories such as burst sensors, weather protection, ducting options, and vacuum safety grids.
The company provides calculation software to help users define necessary vent areas based on KSt, maximum pressure, and equipment size, following standards like EN 14491, VDI 3673, and NFPA 68.
Why VIGILEX Matters
VIGILEX solutions deliver practical protection in settings where dust explosions pose real risks. With ATEX certification and adherence to European explosion standards, they offer safe venting without extensive ducting, even indoors.
Flameless options and quick-calculation software support efficient integration into existing systems. Manufacturing remains streamlined thanks to STIF’s production and testing capabilities.
Video Features to Note
- Animation of panel and VQ device operation during an explosion.
- Exploded views of construction and material layers.
- Display of product variants, including curved panels and VQ metal dust models.
- Customer-facing air-tight vent sizing tool demonstration.
- Assembly and certification imagery from STIF’s facility.
Summary
This video offers a clear look at VIGILEX’s solution portfolio, standard panels, flameless venting, isolation valves, and tools for configuration. Each device plays a critical role in protecting personnel, equipment, and infrastructure from explosion hazards in bulk handling environments.
Watch the video to see how VIGILEX combines expert engineering, certification, and user-oriented design to deliver explosion protection that fits modern industrial needs.
