Door Protection | AstroGrille

>Trade Name: AstroGrille

Intumescent Fire Grilles

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Intumescent Fire Grilles
Astro Grilles
Door Grilles Various Sizes
full size product image from Astroflame

Various sizes of the AstroGrille
Intumescent Grilles
Fire Grilles
Door Grilles Various Sizes

> Quick Overview


Telephone Astroflame 01329 844 500

Email Astroflame

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For in-stock items orders received before 2pm (Monday-Friday) are generally dispatched for delivery on the following working day (Monday-Friday).

> Product Description

A durable ventilation grille which is easily mounted in solid timber fire doors & solid block walls, and can provide in excess of 1/2 or 1 hour fire protection. Astroflame Fire Grille comprises of a intumescent core within a galvanized steel frame with vermin proof 6mm steel mesh fitted to both faces.

Suitable for fitting up to 1,000mm (1m) from floor level. The top of the grille should not be higher than 1000mm from the floor.

The design allows a free area of 80% approximately. See our Free Area table below for guidance.

> Product Availability

All square and rectangular grilles are available to suit 30 minute or 60 minute on previously fire rated applications. Please note these fire grilles are tested with a Steel face Plate (Astro Plates) either side. Free area table below is for the Fire Grille only at approx. 80%. If you require the free area for the grille and face plate either side please contact us.

Maximum single grille size is 600 x 600 mm.

Line the aperture with Astro INTU Mastic and mechanically fix the Grille in place with steel screws in each corner and at 150mm centres both sides.

Product Code Description Size
[please see Free Area table below for number reference e.g. AFFG 300200]
AstroGrille 300x200mm
[please see airflow table below]

> Free Area Specifications

Free Area Table: Astroflame Intumescent Fire Grilles.

Top row is width dimension. First column is Height dimension. Sizes in mm

  100 150 200 225 250 300 350 400 450 500 550 600
100 80cm2 120cm2 160cm2 180cm2 200cm2 240cm2 280cm2 320cm2 360cm2 400cm2 440cm2 480cm2
150   180cm2 240cm2 270cm2 300cm2 360cm2 420cm2 480cm2 540cm2 600cm2 660cm2 720cm2
200     320cm2 360cm2 400cm2 480cm2 560cm2 640cm2 720cm2 800cm2 880cm2 960cm2
225       405cm2 450cm2 540cm2 630cm2 720cm2 810cm2 900cm2 990cm2 1080cm2
250         500cm2 600cm2 700cm2 800cm2 900cm2 1000cm2 1100cm2 1200cm2
300           720cm2 840cm2 960cm2 1080cm2 1200cm2 1320cm2 1440cm2
350             980cm2 1120cm2 1260cm2 1400cm2 1540cm2 1680cm2
400               1280cm2 1120cm2 1600cm2 1760cm2 1920cm2
450                 1620cm2 1800cm2 1980cm2 2160cm2
500                   2000cm2 2200cm2 2400cm2
550                     2420cm2 2640cm2
600                       2880cm2
Calculations made using 80%(approx) free air flow. Please note that this table does not allow for the effects of fitting any of the Astroflame Steel Louvred Face Plates, or any other type of aesthetically pleasing cover over the fire grille. ©1996 Astroflame (Fireseals) Ltd.

> To Order & Specify

Please contact us and quote the following - Quantity / Product Code / Product Description / Size
Typical example:- 2 / AFFG 300200 / Astrogrille / 300x200mm

>> Tel: 01329 844 500 or >> Email:

> Installation

We have technical representatives who provide assistance in the selection and specification of the products on this site and should be consulted for exact installation and product suitability. Ensure an early engagement with ourselves, designers, main contractor and specialist installers before any installation. Other trades and/or manufacturers may need to be consulted. For in-depth information, specification and technical advice please call our Head Office on tel 01329 844 500 or email

> Maintenance

All interested parties, designer, specifier, main contractor and specialist installers should provide access to allow the fire stopping seals to be regularly inspected and maintained, as well as records kept of such maintenance at minimum periods of 12 months, as required by the Regulatory Reform Order, and repaired if necessary. Reference should be made to ASFP TGD 17 – Code of Practice for the Installation and Inspection of Fire Stopping.

> Competency

It is vital that those entrusted to design or install a fire stopping product have the necessary levels of competence to undertake the task professionally and thoroughly. The level of competency required will be commensurate with the expected complexity of the building. All designers must eliminate, reduce or control foreseeable risks that may arise during installation, construction or maintenance when preparing or modifying designs. Clients should ensure that the principal designer and principal contractor carry out their duties under CDM regulations. The ASFP foundation course in passive fire protection provides essential knowledge as part of demonstrating competency and understanding in this key fire protection specialism.

> Additional Notes

How do I install a fire grille (AstroGrille)

For further information on installation requirements please refer to the door manufacturer data and wall specification data to ensure the compatibility of this product, if in doubt please contact the technical team on: tel 01329 844 500 or email

> Health and Safety

The product does not present any known health hazards during or after installation. Normal good industrial and personal hygiene practices should be observed. For further information on health and safety requirements please contact the technical team on: tel 01329 844 500 or email

> Data Sheet Downloads

Download and review the following available data sheets for this product.

Key Information:
  • PDS's are Product Data Sheets
  • SDS's are Safety Data Sheets
  • TDS's are Technical Data Sheets
  • INT's are Install Data Sheets
  • VID's are Video Files
  • DoP's are Declaration of Performance
  • CoC's are Certificate of Constancy of Performance
  • ETA's are European Technical Assessment Sheet
  • UL Documentation are UL - EU Certificate

> Delivery/Returns

For in-stock items orders received before 2pm (Monday-Friday) are generally dispatched for delivery on the following working day (Monday-Friday). All dates quoted for despatch are estimates only and are not guaranteed. We will endeavour to meet these dates but shall have no liability for any delay in despatch or delivery or any damage or loss occasioned thereby. We may deliver products pursuant to any order by instalments. If we are unable to deliver the goods for any reason,you will be contacted and you will not be obliged to pay for the goods which have not been delivered, you also have the option to cancel the goods that have been delivered, however we shall not be liable for any loss of income or profit which may have been caused by the delay or non delivery of goods.

For information about our returns policy please click here.

> Ask a Question

If you've got a question about this product or need some technical help get in touch with the Astroflame sales or technical team to discuss your requirements today. We are open Monday to Friday 8:00am to 5:30pm. You can always contact us on the following:

T: 01329 844 500


Web Page Last Modified: 12th February 2024

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