In this visualisation of explosion protection design for a dust filtration unit, we can see one B-FLAP explosion isolation flap valves used on a pull flow configuration, with HRD Suppression and a VMP explosion vent panel. This application is not recommended for use indoors where personnel and surrounding equipment are present, as the VMP explosion vent does not include a FLEX flameless venting device. 

The explosion starts and the initial pressure wave blasts open the VMP explosion venting device, relieving the pressure of the explosion before the vessel is harmed due to accurate design parameters that enable the VMP panel to burst at a pressure that is below the vessel pressure resistance, thus ensuring the vessel itself does not suffer any damage.

As the explosion intends to propagate through the ductwork to connecting applications and processes, the B-FLAP valve is also triggered by the initial pressure wave of the explosion, causing the inside flap mechanism to slam shut into place, blocking propagation of the explosion. Thanks to the new B-FLAP design, you can see installation of the B-FLAP is achieved on a variety of bends and obstructions, also available for use in push and pull flow applications.

Finally, to the left of the vessel we see HRD Suppression System installed to the connecting ductwork. As an ignition is detected, the suppressants are discharged from the HRD bottles at a rapid rate, extinguishing the flames before they can pass through to connecting processes. The result, is a complete protection design, successfully isolating, controlling and extinguishing an explosion and preventing damages to equipment and injury to personnel.