Deflagration System

Superior Safety & Risk Reduction

Reducing Fire and Explosion Risks from Combustible Dusts

Combustible dust explosions can cause employee injuries, deaths and destruction of entire buildings. In a factory environment, a combination of combustible dusts, spark-generating process and confined spaces can easily become a recipe for disaster if appropriate risk mitigation steps are not taken.

What is a Combustible Dust?

The National Fire Protection Agency (NFPA) defines combustible dust as “any finely divided solid material that is 420 microns or smaller in diameter and presents a fire or explosion hazard when dispersed and ignited in air.” If such a dust is suspended in air in the right concentration, under certain conditions, it can become explosible. Left uncontrolled, such dusts may migrate from the point of production/release, subjecting other parts of the facility to fire and explosion hazards.

The RoboVent Deflagration System

The RoboVent Fusion Series can be easily configured with a deflagration system to reduce the risks associated with combustible dusts. Each component of the deflagration system is designed to minimize potential damage in case of a fire or explosion inside the collector and prevent flames from spreading back into the facility.

When designing a Deflagration System, RoboVent's engineering team takes into careful consideration all aspects needed for NFPA combustible dust compliance. Our engineering process includes:

  • Explosive testing in accordance with ASTM standards to determine if your dust is combustible.
  • PHA (Process Hazard Analysis), sometimes known as risk assessment, is conducted for any dust with a KST value of greater than 200 bar-m/sec.
  • RoboVent's engineering team incorporates explosion relief panels and other devices into our dust control systems to help you comply with the latest NFPA standards.

Meeting Safety Regulations

NFPA has issued a number of standards related to prevention of fire and dust explosions that manufacturers producing combustible dusts must follow. NFPA Standard 652, the Standard on Fundamentals of Combustible Dusts, provides an overview of required safety and risk mitigation practices and directs you to other resources and standards for explosion venting and/or explosion prevention.

Standard Features

Explosion Vent

Explosion Vent

Releasing excess pressure in the event of an explosion, the Explosion Vent is designed to direct pressure away from your building.

Isolation Valve

Isolation Valve

Stopping a pressure wave before it spreads, the Isolation Valve is a key component of RoboVent's Deflagration System.

Rotary Airlock

Rotary Airlock

Designed to prevent an explosion from escaping through the hopper, the Rotary Airlock protects both workers and property.

Built for quality

We build safety, energy savings and efficiency into every piece of equipment we make.


Lower Operating Costs

We’re always looking for ways to reduce energy use, such as automated systems to ensure collectors run only when they need to. Additionally, our filters and equipment have been engineered to maximize filter life and reduce operating costs.


Superior Safety and Risk Reduction

Safety features like our Delta3 spark arrestor and the Supprex-200 fire suppression system reduce the risk of fires in your ductwork and filtration equipment to protect your plant and your employees.


Easy Maintenance

Longer lasting filters are just the start. Our equipment is built to reduce the maintenance burden on your staff. With the ePad Control Panel, you get an easy-to-use control system right at your fingertips to help monitor equipment performance and diagnose needed maintenance.