The EV-VF VigiFlap explosion isolation valve was designed, tested, and certified to prevent the propagation of overpressure or flame front.
A blaze broke out in the equipment in the Wisconsin metalworking plant last Friday morning.
Crews worked for 90 minutes to put out the flames in the dust collection system at the PK Metals plant.
Fire officials told a local newspaper that three workers were rescued from an elevated platform during the reponse.
Why have industrial dust collectors fallen behind in standardizing automation on equipment?