|
| |
| IFP SLOTGRILLE Introduction
Ventilation and air conditioning ducts that penetrate fire separating elements
need to have their integrity maintained. This also applies to fire resisting doors that
require the passage of free air through them, such as doors to boiler rooms. IFP
Slotgrille's high quality air transfer grilles can provide up to 60 minutes integrity and
insulation in accordance with BS 476 Part 22 1987, but still allow 50% free air flow in
normal use. |
 |
Description
IFP Slotgrilles are manufactured from horizontal slats of high performance intumescent
spaced 16mm apart. 38mm thick units provide up to 60 minutes fire resistance. Circular IFP
Slotgrilles are available in standard sizes of 100mm, 125mm, 150mm and 200rrim. Installation
Fire resisting doors and partitions. IFP Slotgrille units can be fixed into fire resisting
doors or timber stud partitions using a hardwood or steel flange. Alternatively wood
screws can be used through the perimeter of the units. Steel cover plates are also
available, please see below. Gaps around the IFP Slotgrille unit greater than 3mm should
be fire sealed using an intumescent sealant.
Ventilation ducts
IFP Slotgrille dampers must be secured within the ducting using 4 self tapping screws. On
circular IFP Slotgrilles the screws should pass through the aluminium rings on the outer
part of the IFP Slotgrille. Clearance gaps should be fire sealed using an intumescent
sealer.
Finishes
Standard colour white. Non standard colours available.
Maintenance
Since there are no moving parts to go wrong, IFP Slotgrilles are easily maintained. Units
should be cleaned using a damp cloth. Grease can be removed by using neat liquid detergent
or methylated spirit. Strong degreasing agents should not be used nor should the units be
immersed or saturated with water.
Ordering
IFP Slotgrilles can be ordered by contacting our sales department. When ordering please
state width x height, fire resistance and colour required.
|
| IFP
MESHGRILLE
Introduction
There is often a requirement for a ventilation aperture to be cut into a fire resisting
compartment wall or door. This penetration breaches the integrity of the element so it is
necessary to fit a suitable fire resistant ventilator unit. IFP Meshgrille, low cost, high
performance air transfer grille, offers a specially designed solution to the problem by
providing a light weight intumescent ventilator core with excellent airflow
characteristics and rapid activation in the event of fire.
Description
IFP Meshgrille consists of two sheets of steel mesh that have been coated with a graphite
based intumescent material. The coating thickness has been optimised to ensure rapid
activation whilst maintaining a high free area and good air flow rate. The sheets are
folded to form a box section which gives the assembly high strength and rigidity, provides
a fine flange for fixing and also carries an intumescent edge seal. There is very little
heat transfer between the two grille plates to ensure good insulation. IFP Meshgrilles are
40 mm thick for fitting to any 30 minute or 60 minute fire door.
Performance
The fire performance of IFP Meshgrille has been proved in tests carried out to BS 476 Part
22 1987 where a grille measuring 570 x 570mm obtained an integrity and insulation rating
of 66 minutes when mounted in a fire door panel. The free area of the grille is over 50%
so the 600 x 600mm size vent has an effective ventilation aperture of 185,000mm2 |
Installation
IFP Meshgrille is fitted as supplied into any vertical aperture and does not require any
additional mastic sealant to its perimeter. Fixing should be by 2" No. 8 steel screws
at 150mm centres through the mesh forming the flange. The grille should be fitted
centrally within the thickness of the fire resisting element. For stud and plaster walls
or any element where a void is present a steel sleeve should be provided to line the full
depth of the aperture. Facia or louvre plates may be fitted to the surface of the
substrate if required.
Availability
IFP Meshgrille is available in stock sizes ranging from 100 x 100mm up to 600 x 600mm, in
50mm steps, in any combination of width and height. It can also be produced to special
order in any intermediate size. |
| IFP AIR TRANSFER GRILLE (COVER PLATES)
Features
Door or wall mounted
Standard or Fireblock air transfer application
Quality 20swg mild steel construction
Wide 33mm flange border
Introduction
IFP presents a range of Mild Steel Louvered Grilles designed to satisfy all types of air
transfer application in offices, shops, schools, hospitals and many other commercial
projects. Manufactured using modern press machinery and production techniques the Grille
is robustly fabricated from 20swg mild steel and comprises of horizontal louvres set on an
8.5mm pitch with a 30' downward deflection using self tapping screws provided. Suitable
for surface mounting in both door and wall applications, the steel construction ensures
that the unit is satisfactory for both standard air fixing to the surrounding structure
using self tapping screws provided. Slimline and unobtrusive the unit offers a free area
around 40'/o for economical selection and is readily available in a wide variety of normal
sizes. Standard finish is a Stove Enamel Satin Silver or White.
Note: All sizes in mm
All the above products, where relevant, are tested to British
Standards 476: Parts 8, 20, 22 and 31. 1
|
Ordering Specification Number required, size (width x height mm),
finish. |
|
