Pressure Relief Vents

PRV-F Pressure Relief Vent

Select a product information:
    • Single direction venting
    • BSRIA free vent area validation
    • Operating range: 30 pascals upward
    • Serial Number Traceability
    • 10 Year Warranty as Standard
    • Used in the Pressurisation of Stairwells

    Get a quote

    The pressurisation of stairwells is an increasingly common method of ensuring safe means of exit from a building on fire. Pressure control must be in place to maintain minimum and maximum stairwell pressures within agreed parameters.

    BS EN 12101-6:2005 (replacing BS 5588-4:1998) requires pressurised fire escapes to be maintained at 50 Pa and limited to a maximum of 60 Pa. Apreco’s extensive range of standard air pressure relief vents (dampers) are characterised by ease of installation.

    A variety of bespoke external solutions are also available, including weather protection using fixed low loss louvres and penthouse louvre assemblies. Bespoke designs can handle all flow/pressure requirements in pressurised stairwells built to BS EN 12101-6:2005 (replacing BS 5588- 4:1998).

    The PRV Vents can also be adapted for use where there is a requirement for pressure relief venting in industrial applications.  The PRV vents have been used in applications for the Defence Industry in combination with security louvres.

  • Stairwells

    The pressurisation of stairwells with a pressure relief vent is an increasingly common method of ensuring safe means of exit from a building. Pressure control must be in place to maintain minimum and maximum stairwell pressures within agreed parameters.

    BS EN 12101-6:2005 (replacing BS 5588-4:1998) requires pressurised fire escapes to be maintained at 50Pa and limited to a maximum of 60Pa.

    Apreco’s pressure relief vent is characterised by ease of installation. For internal siting, the blade balancing system allows vertical, horizontal and inclined mounting. A variety of bespoke external solutions are also available, including weather protection using fixed or motorised low loss louvres and penthouse assemblies.

    pressurisation of stairwells
  • Vent Sizes

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

    Metric

    Model Volumetric Flow
    Rate (m3/s)
    Nominal Size
    (W x H mm)
    Maximum size*
    (W x H mm)
    Aperture size
    (W x H mm)
    Weight**
    (Kg)
    PRV-F-0303 0.360 @ 30pa
    0.475 @ 50pa
    0.870 @ 150pa
    300 x 300 440 x 450 360 x 370 10
    PRV-F-0505 1.00 @ 30pa
    1.325 @ 50pa
    2.420 @ 150pa
    500 x 500 640 x 650 560 x 570 19
    PRV-F-0707 1.965 @ 30pa
    2.600 @ 50pa
    4.745 @ 150pa
    700 x 700 840 x 850 760 x 770 29
    PRV-F-1010 4.00 @ 30pa
    5.300 @ 50pa
    9.680 @ 150pa
    1000 x 1000 1140 x 1150 1060 x 1070 48

    * Cover Grille maximum dimensions are 10mm greater than the stated PRV Vent maximum size.
    ** Weights are indicative and relate to PRV Vent and Wall Liner combined.
    Standard Internal wall depth coverage is 100 to 180mm (External 180 to 200mm) extension Sleeve(s) can be added in 75mm increments.

    Imperial

    Model Volumetric Flow
    Rate (ft3/s)
    Nominal Size
    (W x H in)
    Maximum size*
    (W x H in)
    Aperture size
    (W x H in)
    Weight**
    (lb)
    PRV-F-0303 12.71 @ 0.12in wc
    16.77 @ 0.20in wc
    30.72 @ 0.60in wc
    11.80 x 11.80 17.30 x 17.70 14.20 x 14.60  22lb 0oz
    PRV-F-0505 35.32 @ 0.12in wc
    46.79 @  0.20in wc
    85.46 @ 0.60in wc
    19.70 x 19.70 25.20 x 25.60 22.00 x 22.40  41lb 14oz
    PRV-F-0707 69.39 @ 0.12in wc
    91.82 @ 0.20in wc
    167.57 @ 0.60in wc
    27.60 x 27.60 33.10 x 33.50 29.90 x 30.30 63lb 15oz
    PRV-F-1010 141.26 @ 0.12in wc
    187.17 @ 0.20in wc
    341.85 @ 0.60in wc
    39.40 x 39.40 44.90 x 45.30 41.70 x 42.10 105lb 13oz

    * Cover Grille maximum dimensions are 0.39″ greater than the stated PRV Vent maximum size.
    ** Weights are indicative and relate to PRV Vent and Wall Liner combined.
    Standard Internal wall depth coverage is 4.13 to 7.09″ (External7.09 to 7.87″) extension Sleeve(s) can be added in 2.9″ increments.

  • Internal Wall Installation

    Internal Wall Installation for Motorised Inert Gas Vent

    This typical installation consists of:
    2 x Cover Grilles
    1 x PRV Vent
    1 x Wall Liner

    External Wall Installation

    External Wall Installation Pressure Relief Vent

    This typical installation consists of:
    1 x PRV Vent
    1 x Weather Louvre or Dynamic Cover Seal

    Deep Wall Installation

    Deep-cropped-1024x706

    This typical installation consists of:
    1 x PRV 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 PRV 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.

    Dynamic Cover Seal

    Dynamic Cover Seal

    The Dynamic Cover Seal (DCS) is used in conjunction with the IGV or PRV-F in positive venting applications, where additional sealing of the enclosure is required.

  • PRV-F (Pressure Relief Vent) Data Sheet

    Category: Data Sheets Filetype: pdf

    Just a few details to fill in...

    • * = Required field
A few of our Clients who’s assets & personnel are protected by Apreco products. View all clients
8f9c92a75dc0990b419813fde27cb91bc0e598c0
9f71012098b6f37a1de65ad33908e03ad89038f3
bb4fb07139f7cda0f55e92157f9384be98ab6a7a
c1a0c026965636d9b3ece0578732c59d0eda0eb5
c06581eb6a9d40ebc669da36ecc5b2290da6ec35
cafbacc7f5995680e35da5e12a7b7ab30d576274
dec1fa830454329022a323102d82cf34c511f48d
Pfizer-logo-1024x585
China-Mobile-Logo-1024x576
Untitled-2-1-e1611935108498
1200px-BT_logo_2019.svg_-1024x1024
Sega-Logo.wine_-e1614618091130-1024x487