Pressure Relief Vents

IGV-R Gas Vent Reverse Flow

Select a product information:
    • EWCL5 with up to 4-hour fire resistance to BS EN 1364-1
    • BSRIA free vent area validation
    • Single direction venting
    • Operating range: 100 pascals upward
    • Removable flange to alter flow configuration*
    • Serial Number Traceability
    • 10 Year Warranty as standard

    Get a quote

    The IGV-R range of gas vents are designed specifically for under-pressure venting associated with Synthetic gas high-pressure Fire Suppression Systems, where over-pressure is not an issue and the SGV Dual-Flo® is not required.

    *The vents can also provide protection against over-pressure venting with inert gases as they have the unique feature of having reversible flanges which allow installers to alter the flow configuration on-site and keep the units housed within the wall and avoiding protrusions from the wall. Please refer to IGV product details for further information.

    The Vents are offered in a number of standard sizes for installation in both internal and external walls with the availability of bespoke sizes in 100mm increments. Providing market-leading performance across a range of pressures which has been validated by BSRIA under laboratory conditions to recognised standards. The vents are designed to remain closed below opening 70Pa to allow room integrity testing to be carried out with ease. The units are also fully open at 100Pa giving you the best possible protection for your building.

    The IGV-R has been successfully tested at EXOVA Warrington Fire following the performance test criteria of BS EN 1364-1, achieving up to 4 hours fire resistance.

    Vent Model 0303 and upwards fits into an internal wall thickness of 125 to 205mm with external walls 200 to 220mm.

    Models 0501 & 0301 external and internal wall depths are 125mm to 205mm.

    Deeper walls can be accommodated with the use of our easy fit wall liner extension sleeves. For doors and thin walls, the use of our C-frame Kit can be utilised.

  • Demand for Apreco synthetic gas vents is increasing with the recognised need for over and under pressure venting associated with Inert and Synthetic Gaseous Fire Suppression Systems.

    Buildings are most commonly designed to withstand internal pressures of between 250 to 500Pa, though this can vary depending on the type of construction. The use of correctly sized and functioning pressure relief vents will protect such building structures from damage.

    Apreco synthetic gas vents are of ‘counter-weighted’ design to prevent the risks of over and under pressurisation resulting from the use of gas fire suppression systems. The Apreco range of pressure relief vents have been successfully tested to EN1364-1 criteria to provide up to  4-hour fire-resistance rating.

    Specifically developed for these applications, the range can be used alongside a wide range of gas fire suppression systems to prevent structural damage and risk to personnel.

    Maximum room pressure is controlled by the vents opening to allow air to escape, then closing when discharge is complete. This maintains the dilution of the air, so preventing re-ignition.

    Halocarbon Pressure Relief Vent
  • Vent Sizes

    Standard stock models shown and sized. Bespoke sizes available upon request

    Model Free Vent Area
    (FVA m2)
    Maximum size*
    (W x H mm)
    Aperture size
    (W x H mm)
    Weight**
    (Kg)
    IGV-R-0301 0.034 Internal
    0.034 External with FWC
    440 x 252 360 x 170 4.0
    IGV-R-0501 0.055 Internal
    0.055 External with FWC
    640 x 252 560 x 170 6.0
    IGV-R-0303 0.092 Internal
    0.059 External with FWL
    440 x 452 360 x 370 8.5
    IGV-R-0505 0.250 Internal
    0.163 External with FWL
    640 x 652 560 x 570 17.0
    IGV-R-0707 0.483 Internal
    0.319 External with FWL
    840 x 852 760 x 770 28.0
    IGV-R-1010 0.976 Internal
    0.650 External with FWL
    1140 x 1152 1060 x 1070 50.0

    * Cover Grille maximum dimensions are 10mm greater than the stated IGV-R gas vent maximum size.
    ** Weights are indicative and relate to IGV-R gas vent and Wall Liner combined.
    Vent Model 0303 and upwards fits into an internal wall thickness of 125 to 205mm with external walls 200 to 220mm.
    Models 0501 & 0301 external and internal wall depths are 125mm to 205mm.
    Deeper walls can be accommodated with the use of our easy fit wall liner extension sleeves. For doors and thin walls the use of our C-frame Kit can be utilised.

  • Internal Wall Installation

    Internal Wall Installation for Motorised Inert Gas Vent

    This typical installation consists of:
    1 x IGV-R Gas Vent
    1 x Wall Liner

    External Wall Installation

    Internal wall installation for Synthetic Gas Vent

    This typical installation consists of:
    1 x IGV-R Gas Vent
    1 x Fixed Weather Louvre

    Deep Wall Installation

    Deep Wall Installation Pressure Relief Vent

    This typical installation consists of:
    1 x IGV-R Gas Vent
    1 x Extension Sleeve
    1 x Wall Liner

    Narrow Wall Installation

    Narrow Wall Installation for Motorised Inert Gas Vent

    This typical installation consists of:
    1 x IGV-R Gas Vent
    1 x C-Frame Kit
    1 x Wall Liner

    Wall Liner

    Wall Liner for pressure relief vent

    The Wall Liner is used to line the cavity produced in the substrate and with flanges that match that of the vent to produce a clean professional looking installation.

    Cover Grilles

    cover grilles for vents

    Apreco’s extensive range of cover grilles can be fitted directly to both the vent and Wall Liner through the provided fixing holes, not impeding on the Free Vent Area.

    Extension Sleeve

    Extension Sleeve

    The Extension Sleeve allows the Pressure Relief Vent to be installed in deeper walls, increasing the depth of the installation by up to a maximum of 75mm.

    Fixed Weather Cowl

    Weather Cowl for Vents

    The Fixed Weather Cowls (FWC) (used on unit models 0301 & 0501 ONLY) ensure the vent is protected from the outside elements while not impeding the FVA performance.

    Fixed Weather Louvre

    Weather Louvre for Vents

    Apreco’s High Free Vent Area (FVA) Fixed Weather Louvre (FWL) is used on external installations offers a large 65% FVA while ensuring the vent is protected from the outside elements.

    Security Weather Louvre

    Security Weather Louvre

    The Security Weather Louvre has been designed specifically for use with Apreco’s range of Pressure Relief Vents with low loss 65% Free Vent Area. Robust design with a burglar-resistant rating of BR2.

    C-Frame Kit

    C-Frame Kit

    The C-Frame Kit allows the Vent to be installed in narrow walls. Each C-Frame Kit decreases the wall depth requirement of the installation by 135mm.

    Narrow C-Frame Kit

    Narrow C-Frame Kit

    The Narrow C-Frame Kit allows the Vent to be installed in narrow walls. Each Narrow C-Frame Kit decreases the wall depth requirement of the installation by 50mm.

    Security Grilles

    Security Grilles

    Apreco’s security grilles are designed to offer a light to medium-security deterrent where Fire suppression and pressure relief vents could become subject to such environments.

  • IGV-R Data Sheet

    Category: Data Sheets Filetype: pdf

    IGV Installation Guide

    Category: Installation Guides Filetype: pdf

    Just a few details to fill in...

    • * = Required field
    • Hidden
    • Hidden
Image2
Pressure Relief Vents

IGV Inert Gas Vent

  • The IGV inert gas vent is designed specifically for over-pressure venting associated with inert gas high pressure Fire Suppression Systems.
View Product
IGV-M-All-400
Pressure Relief Vents

IGV-M Motorised Inert Gas Vent

  • The IGV-M Motorised Inert Gas Vent is designed specifically for over-pressure venting associated with Inert gas Fire Suppression Systems.
View Product
A few of our Clients who’s assets & personnel are protected by Apreco products. View all clients
8f9c92a75dc0990b419813fde27cb91bc0e598c0
9f71012098b6f37a1de65ad33908e03ad89038f3
bb4fb07139f7cda0f55e92157f9384be98ab6a7a
c1a0c026965636d9b3ece0578732c59d0eda0eb5
c06581eb6a9d40ebc669da36ecc5b2290da6ec35
cafbacc7f5995680e35da5e12a7b7ab30d576274
Virgin Media logo
Pfizer-logo-e1611934978703
China-Mobile-Logo-1
Untitled-2-1-e1611935108498
1200px-BT_logo_2019.svg_-e1611935191166
Sega-Logo.wine_-e1614618091130