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Abort Gate | Spark Diversion Systems
  • Factory Support Available & Application Engineering Included
  • Need Sizing Help? Speak to an application engineer today
  • Questions? Call us Mon-Fri, 8 am - 5 pm

Abort Gate Spark Diversion Systems for Dust Collectors

Performance rated for under 500ms response time

Abort Gate systems are spring-assisted electromagnetic dampers that close within 500 milliseconds to divert sparks, flames, and smoke away from building interiors.

These devices provide essential building and personnel protection for indoor dust collection systems by isolating the return air path during a fire event. Our configurations ensure full compliance with NFPA 664 and 654 standards for industrial safety.

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Engineered for Return Air Isolation in Woodworking and Industrial Facilities

The Rodair High Speed Abort Gate is a spring-driven safety diversion valve installed on return-air duct systems to protect occupied workspaces from fire and explosion. Manufactured by Rodair (div. of Rodrigue Metal Ltd.) and distributed by FLAMEX, the gate installs on an air duct and diverts airflow to atmosphere the moment an upstream infrared spark detector triggers the release signal. When triggered, the 110 VDC electromagnet releases and a spring-driven damper opens in under 500 milliseconds, diverting sparks, flames, and combustion products through a weather hood to the outside before they can re-enter the building. A gate relocking system activated by an electric cylinder holds the gate in the open (diverted) position until personnel physically inspect and manually reset the unit, satisfying NFPA 664 requirements for return air systems. A prewired electrical panel mounts directly on the gate body for simplified field installation.

Key Capabilities

  • Spring-action opening time of under 500 milliseconds from detection signal to full diversion.
  • Failsafe design — gate opens and diverts on loss of power or detection trigger.
  • 110 VDC electromagnetic locking system holds gate open during normal operation.
  • Weather hood diverts exhaust safely to atmosphere away from personnel and structures.
  • Manual reset ensures compliance with NFPA 664 before returning system to service.
  • Prewired electrical panel mounted on the gate body — simplified field wiring.
  • Integrates with FLAMEX spark detection and compatible control panels.
Feature Specification Notes
Size Range 5″ to 70″ diameter (120mm to 1850mm) See model selection chart
Response Time Under 500 milliseconds Spring-action gate
Control Voltage 110 VDC Electromagnetic locking system
Construction Heavy-duty welded and bolted steel Includes seal around gate
Compliance NFPA 664, Standard 8-4 Return air to buildings
Reset Manual or automatic electric cylinder Manual standard; auto relocking optional
Manufacturer Rodair, div. of Rodrigue Metal Ltd. Distributed by FLAMEX
Collectors & Filters supplies and supports Rodair abort gates alongside FLAMEX spark detection systems for Indiana facilities handling combustible dust. The abort gate and spark detector are typically specified together as a complete return-air protection package. Contact us to review your system layout and duct sizing. Get in touch.

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MANUFACTURERS WE WORK WITH

Proud Member of Leading Industry & Safety Organizations
National Air Filtration Association member
Indiana Manufacturers Association member
Boone County Indiana Chamber of Commerce member

Proudly supporting industrial air quality, manufacturing safety, and Indiana business through memberships in NAFA, the Indiana Manufacturers Association, and the Boone County Chamber.