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1
Blast and Explosion
Release Vents
Designed primarily for commercial and
military environments
PPC factory applied finishes in a range of
RAL colours
For internal and external applications
Can be re used following a forced opening
Available in small, large and purpose
made sizes
Factory calibrated and adjustable after
installation to accommodate increased
operational requirements
Typical Top Hinged Blast Vents
Typical section detail for opening release vents–
See table below for available sizes
Technical Data Sheet
TDSBB 1018
Also ask about
our ‘Fixed Blast
Louvers’
sales@blastandballistics.com
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Frame profile
Available as steel and aluminium profile
Minimum frame depth/wall thickness 70mm
Finishes
Factory applied Polyester Powder Coat
Available sizes
Min 500mm x 500mm
Max 1200mm x 2400mm
With additional units - indefinite
Overall thicknesses
Generally 70mm overall – other sizes by special order
Operating/Release pressures
Adjustable to order but min. 0.0065bar
Can be re set after installation for higher values
Options
Thermally broken
Weights
Frame profiles approx. 3kg/m - 15kg/m
Packing
Supplied in standard or international crates for dispatch
Top hinged vent in
closed position
Available as both top and bottom hinged vent panel
Top hinged vent
opening under blast
loading
Top hinged vent can be
re set after explosion
Ordering and Calibration:
When ordering please state finished overall width and height in millimetres.
State the minimum required opening/release pressure. This will be factory set. Note – it may be
necessary when stating this to consider local climatic conditions to allow for wind and other salient
external effects which may exceed the release pressure and cause the vent to open when not required.
The release pressure can also be checked, calibrated and adjusted for higher or lower values even after
installation.
Under normal operating conditions the vent can be closed after having been released and will be ready
to operate again upon closure. It should be checked for correct operation however to ensure the blast
pressure that the unit has vented has not been greater than anticipated and in consequence could have
damaged or misaligned the vent unit.
Blast and Explosion Release Vent and Louvre data
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Top hinged vent opening
under blast loading
Model BBBV 1001
Spark proof adjustable latching
Opaque solid infill panel
Factory prepared for installation
FM approved blast and explosion
latching system (Factory Mutual)
Top hinged vent opening
under blast loading
Model BBBV 1002
Spark proof adjustable latching
Clear infill panel providing natural
light where required
Factory prepared for installation
FM approved blast and explosion
latching system (Factory Mutual)
Top hinged vent opening
under blast loading
Model BBBV 1003
Spark proof adjustable latching
Louvered infill panel providing air
flow where required
Factory prepared for installation
FM approved blast and explosion
latching system (Factory Mutual)
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Manufactured to customer’s specifications in
single and multiple configurations depending
upon blast loading and building design
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The system is designed to accept opaque, clear, transparent, translucent and also louvered ventilation panels
The Blast and Explosion Vents and Blast and Explosion
Louvers are designed primarily to release overpressure from
within a building or internal area. They are often required
however to allow airflow at other times especially in the
case of plant and machinery. The Blast and Explosion
Louvres when fitted with the Blast Louver panel will do just
that until such time as the pressure needs to be released.
Pressure that is not aspirated through the Blast Louver will
operate the release mechanism and the Blast and Explosion
Louvre will release the panel and allow it to open.
The Blast and Explosion Vents and Louvers are also available
with various types of solid insulated and also clear glazed
panels. Allowing light transfer or not as the case may be. The
frame system of both the Blast and Explosion Vent and Blast
and Explosion Louver is thermally broken and is
complimented with the use of thermally broken infill panels.
A wide range of powder coat colour finishes is also available.
Products are factory finished and packaged ready for
dispatch.
The Blast and Explosion Vents can also be upgraded to
provide ballistic protection. This helps protect against
fragmentation which can be produced in commercial
environments. As one example these Blast and Explosion
Vents have been used to protect workers in areas such as
the laboratory testing of high speed revolving parts or
pressure pipework systems.
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Installation and Maintenance:
The unit is factory pre-assembled and after offering the frame into the prepared structural opening it is
secured using proprietary frame or machine screw fixings
The system can be sealed around its perimeter for weather tightness using proprietary sealants
The system is lightweight and can sometimes remove the need to use other expensive handling
equipment during installation
After installation the unit can also be checked for operating release pressures and adjusted if necessary
to accommodate increased or decreased blast/explosion threats from within the building
Unless the previous blast/explosion has been particularly onerous for the unit it will simply close and is
ready for operation – no need to replace the unit. Check that the unit has correctly re latched and is not
damaged
The unit is already factory calibrated ready for installation
Installation is simple and reduces site cost
The unit is lightweight and is often installed using one person
The unit requires little maintenance. Check for correct operation, clean and check release pressure if
required
The centre panel of the unit is also available in clear finish to allow daylight transmission if required
• Paper Process (solvent use/storage)
• Laboratory Test Facilities
• Hospitals (gas and/or flammable storage areas)
• Brewery Facilities (grain storage/processing)
• Fossil Fuel Plants (coal dusts)
• Food Processing (airborne dust)
• University Labs (chemical lab store rooms)
• Grain Milling Facilities (airborne dusts)
• Nuclear Power Stations
• Printing Companies (solvent use/storage)
• Chemical Production
• Petroleum Industry
• Paint, Varnish Manufacturers
• Energy/ Mining Industry
• Co-Generation Plants
• Recycling Centres
• Sewage Treatment (by-product recycling)
• Automotive (air bag, mfg. Plant lines)
• Grinding/Pulverizing processes (airborne dusts)
• Ink Manufacturers
Typical Areas of Application
Email: sales@blastandballistics.com
Web: www.blastandballistics.com
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