Fixed Blast Louvres

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Fixed Blast Louvres

Blast louvres are manufactured to allow the free passage of air throughout buildings. They can also be used as a visual screen to hide plant and machinery.


In addition, they are built so as not to break apart when subjkected to a blast load which would produce fragmentation. If a standard louvre collapsed under blast load, there would be serious risk of injury to people and damage to property. Blast louvres are intended to prevent that from happening.


The louvres are primarily designed for commercial and military environments. This is a bespoke product and can be manufactured to meet customer's required dimensions, blast resistance and wall construction/fixing detail.

Features

  • Available in a factory PPC Finish, Mill Finish and Galvanised.
  •  Can be used for both internal and external applications, installed into walls, panels and doors.
  • Can be installed into recess or face mounted with flange.

 Areas of Application

  • 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 dust
  • Airborne dustsInk Manufacturers
  • Ink Manufacturers
  • Printing Companies (solvent use/storage)
  • 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


Protecting A Diverse Range Of Industries

When it comes to industries that face the threat of internal explosions, the list is surprisingly diverse. Our blast relief roof vents are applicable in various sectors, including the petroleum industry, energy and mining, and even brewery facilities. This wide applicability makes it an essential safety measure across different operational setups.


Automotive plants, co-generation facilities, and lithium battery storage areas also greatly benefit from our specialised roof vents. In environments where safety is paramount, such as hospitals and university laboratories, our vents offer that extra layer of protection that could also be the difference between total collapse and business continuity. This explosion protection helps to mitigate damage to businesses and organisations so that they can get back to operational capacity as quickly as possible.


It may not always possible to include the preferred number or size of other blast mitigation products such as Fixed Blast Louvres, Frangible Blow Out Panels, Hinged Vents and so forth and in those cases, where possible, the inclusion of a Blast Relief Roof Vent is a simple and very effective safety net in such applications.

PROFILE
Folded or drawn steel profiles
Available in Steel and Stainless Steel
Minimum frame depth/wall thickness 100mm
FINISHES
Factory finish RAL Polyester Powder Coat (PPC), Mill Finish or Galvanised
Special finishes and colours available on request
AVAILABLE SIZES
Bespoke sizes available along with multiple units to allow for an indefinite effective size
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WEIGHTS
Frame profiles approximately 3kg/m – 15kg/m
Vent panels approximately 12kg/m2 – dependant upon configuration and sizes
INSULATION
Available with insulation
Available without insulation
RELEASE VALUES
Minimum release value of 0.65kPa (0.0065 bar)
Factory set if required and can also be adjusted to customer’s required release pressure
The release can be easily adjusted on site to accommodate updated blast requirements
OVERALL THICKNESS
Generally 45mm overall and upwards depending upon wall details– other sizes by special order

Fragmentation Protection Option

Protection from fragmentation is also necessary in certain applications. This can include such operations as ammunition manufacturing.


In this instance, the blast louvre will also need to accomodate fragments or shrapnel that can be travelling up to as much as 3,000m/s. In mitigating this resistance, we incorporate our ballistic technology to produce a system that offers both blast resistance, bullet resistance and hence fragmentation resistance.


This product is available in all sizes in galvanised or factory PPC finish. This unit is purpose made as with all of our products. In terms of installation, these units can be reveal or surface mount fix.


They are suitable for both indoor and outdoor applications and work in both directions.

Survey Sheet


We offer standard templated drawings to help assist customers during the intial phase of a project.


Full drawings are always provided prior to manufacture.

Manufacturing Process & Shipping

Project-Specific Calculations


The product range has undergone significant testing and calculations which can be provided upon request.


Project-specific calculations can also be produced, crucial for compliance with Health and Safety regulations.


The calculations are approved by a third-party independent blast consultant.


Fixing Details Available

Frequently Asked Questions

  • Do Blast Relief Roof Vents require regular maintenance?

    While our roof vents are designed for durability, as with all safety products, maintenance is recommended to ensure their effectiveness. This is predominantly inspection based more so than actual removal and replacement of parts. Our team can guide you through the maintenance requirements.

  • What materials are used in the construction of the vents?

    Our Blast Relief Roof Vents are made from high-quality, durable materials, such as stainless steel, aluminium and insulating products that are designed to withstand extreme conditions.

  • What happens during power outages? Do the vents still work?

    Our Blast Relief Roof Vents are designed to function independently of electrical systems, ensuring they remain operational even during power outages.