Explosion Isolation & Diversion
Protect connected vessels and pipelines from secondary explosions
Boss Explosion Isolation & Diversion Solutions
Explosion isolation valves should be placed on the inlet, outlet and hopper discharge of protected vessels and interconnecting pipelines to prevent deflagration propagation. Isolation valves are available for a variety of orientations and dust types. Diversion valves are also available with multiple options. Our engineers will work with you to determine the proper valves for your facility and application.
Proper Testing of Explosion Isolation Valves
AST Canada's Commitment to Industrial Safety
The AST Group is committed to helping you meet and exceed today’s strict NFPA regulatory guidelines governing industry in Canada. We provide a full range of fire and explosion mitigation solutions to address potential hazards in the industrial filtration and process industries. AST Canada brings decades of experience to the design, engineering, and installation of containment solutions for multi-application industrial dust collection, bulk handling, and process systems. We believe BOSS Products has developed a family of SAFETY SMART solutions to work as individual components or as a seamless plantwide solution to meet the needs of industrial safety in Canada.
Boss Explosion Isolation & Diversion Products
EV-VF VigiFlap Explosion Isolation Valve
The VigiFlap is an explosion isolation valve designed to prevent propagation of overpressure or flame front caused by an explosion downstream in vessels such as dust collectors, cyclones, and filters.
The valve is held open either by airflow or a proprietary locking mechanism. As a result, the VigiFlap valve can be used as an explosion isolation device for both the inlet and oulet of a vessel.
The VigiFlap Explosion Isolation Valve complies with NFPA guidelines and is an ATEX Certified device for explosion containment.
Operation manual
BOSS VIGILEX Isolation Valve
No Return Valve Combo/Metal
The VigiFlap is an explosion isolation valve designed to prevent propagation of overpressure or flame front caused by an explosion downstream in vessels such as dust collectors, cyclones, and filters.
The valve is held open either by airflow or a proprietary locking mechanism. As a result, the VigiFlap valve can be used as an explosion isolation device for both the inlet and oulet of a vessel.
The VigiFlap Explosion Isolation Valve complies with NFPA guidelines and is an ATEX Certified device for explosion containment.
Float Valve EM-FV
EM-FV Float Valves are designed as an explosion isolation device in air streams with low to low moderate dust concentrations. The maximum allowed recommended particle size is approximately 500 microns. Single and double-acting models are available.
A regular inspection and maintenance schedule are required to ensure that dust deposits that could interfere with the valve’s function are not accumulating.
Explosion Diverter EV-VDIV
The Explosion Diverter EV-VDIV with integral explosion panel is the ideal addition to any exterior process flow duct system where there is potential for hazardous explosive overpressure or multiple explosive events. This device helps reduce the potential for system damage caused by high overpressure and rapid flame front expansion.
BOSS Process Rotary Valves
Exceptional Rotary Valves for Every Application
- Pneumatic conveying valves, gravity flow, metering and high-pressure sealing
- Valves for dust collection and cyclones, low-and high-pressure
- Explosion Isolation NFPA 69 compliant valves
Rotary Valve General Brochure
Rotary Valve HT Series
Feeder valve for screw conveyors, scales, dryers and coolers
Sizes: 10”, 14” & 18”
Features
- Cast iron housing with safety red finish EX version
- Differential pressures up to 40” WC
- Direct drive gearmotor with flex coupling
- Airlock in dust collector and cyclone installations
- Explosion and Flame Proof design rated up to 25 PSI / 670” WC
Rotary Valve HTS Series
Ideal for dust collectors, cyclones, silos, hoppers, and specialized process applications
Sizes: 10” & 14”
Features
- Cast iron housing with safety red finish EX version
- Explosion and Flame Proof design rated up to 25 PSI / 670” WC
- Airlock in high vacuum installations – applications up to 160” WC
- Direct drive gearmotor with flex coupling
Rotary Valve MD Series
Ideal for feeding, metering and pneumatic conveying applications
Sizes: 6”, 8”, 10” & 12”
Features
- Manages differential pressure up to 15 PSI / 400” WC
- Shaft sealing with adjustable gland gasket
- Cast iron housing with flanged inlet/outlet
- Direct drive motor with gearbox
- 8 vane rotor with options for polyurethane tips, steel or stainless steel
- The Explosion version certified to withstand explosive pressures up to 36 PSI / 25 PSI (985” WC / 670” WC) with polyurethane tips
Rotary Valve BS Series
Ideal for wood applications
Sizes: 20”x 20”, 20”x 30”, 20”x 40” & 20”x 60”
Features
- Differential pressures up to 28” WC
- Direct drive gearmotor with flex coupling
- Explosion and flame proof to 7.25 PSI / 201” WC
Raptor Drum™ Explosion Tested Drum Kit
The NFPA compliant Raptor Drum™ Explosion Tested Drum Kit acts as an extension of the dust collector. It is an innovative solution for explosion isolation. No need for wiring, maintenance, motor, starter, wipers, chains.
Features
- Standard sizes : 10” -18”, 55 galon or 20 gallon drum
