FIREPLUG INTUMESCENT STRIP - FOR REBATING
Reference
Fireplug Intumescent Strips are
available white or brown, in standard 2100mm or 1050mm lengths and are supplied
self adhesive. Fireplug Intumescent Strips are also available in door
sets. Packed 5 x 1050mm for single doors and 10 x 1050mm for double doors.
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Description
Fireplug IFS104, IF104, IFS204,
IF204 are produced using Firefly 102 intumescent material and encased in a PVC
sleeve, achieving a high degree of protection from mechanical and chemical damage.
Fireplug Profile ref IF - is in a cross
section as shown above, rectangular, normal sizes 10mm wide x 4mm deep (ref:
IF104) for 1/2 hour protection, 20mm wide x 4mm deep (ref: IF204) for 1 hour
protection.
Fireplug Profile ref IFS - differs from
Fireplug IF where smoke inhibition is required. In this instance a 5mm
long brush pile incorporating a polypropylene blade is inserted along
the entire length of the PVC profile. Ref IFS104 for 1/2 hour protection
and ref IFS204 for 1 hour protection.
Action
Under the action of heat, the PVC profile softens as the intumescent core expands sealing the gap between the door and the door frame, through which fire and toxic gas could pass. The amount of pressure developed by the expanding intumescent is dependent on the gap to be sealed. The wider the gap the lower the pressure.. The temperature at which Fireplug Intumescent strip starts to activate is 120 - 160 oC. At this temperature no one would survive on the fireside of the door and in most cases the thermal shock would be fatal to anyone on the unexposed side opening the door. However, despite the requisite that the pressure developed by the expanding intumescent is sufficient to keep the door closed it is possible to make the door open if required.
Performance
Fireplug IFS104 and IF104 has been tested by TRADA to British Standards BS476 Part 22, on April 20th 1993, test No. FR1687. The test criteria attained in Fireplug Intumescent Strip being acceptable for use in many leading manufacturers doors for 30/30 half hour doors, likewise Fireplug IFS104 and IF104 has been tested for use on 60/60 one hour doors.
Application
Fireplug IFS104 and IF104 is fitted
into a groove nominally 10mm wide x 4mm deep. To aid fixing, although
not essential, the strip can have a self adhesive backing, alternatives to this
are gluing or securing with tacks. IFS104 and IF104 are fixed similarly
but the groove is nominally 20mm wide x 4mm deep. The groove can be routed
into either the door or into the door frame. The rout is along the head
of the door and down the jamb. Intumescent is not required along the bottom
as in a fire situation a negative pressure results making the air flow in the
opposite direction to the top.
Where the groove is masked by hinges, locks or
other door ironmongery we recommend that FIreplug Intumescent Strip is used
in conjunction with Fireplug Hinge and Lock Protection. If a smoke seal
is required then the Fireplug IFS Profile can be used. The recommended
gap around the door is 4mm, this enables ease of opening and closing against
the brush stroke seal. Various single and double door types are shown
under their relevant intumescent strip requirements.
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N.B. i)
Never use brush seals in both sides of meeting stiles.
ii) Always fit the
IFS brush directly opposite the IF profile.
Reference
FIREPLUG FPSM
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Description
The surface mounted intumescent fire and smoke seals are 25mm wide incorporating 20mm wide intumescent plus 5mm wide brush smoke seal, complete with polypropylene blade. FP202 is nominally 2mm thick, FR102 is nominally 1mm thick. FP102 is used for ease of fitting to the hinge jamb, where you would expect a smaller gap in comparison to closing jamb or head. All seals come self adhesive as standard.
Action
Under the action of heat, the intumescent rapidly expands to seal around the door stopping the passage of fire and toxic gases. The brush smoke is designed to inhibit the passage of cold smoke.
Performance
Fireplug FP202 and Fireplug FP102 have been tested by TRADA to British Standards BS476, Part 22, on April 20th 1993, test No. FR1687.
Application
Fireplug Surface Mounted Fire
and Smoke Seal is supplied in door sets. The thicker pieces, Fireplug
FP202, are installed on the closing lock jamb and the head of the door.
The thin pieces, Fireplug FP102, are installed on the hinge jamb, the surface
mount strip is placed over the metal of the hinge, this is to absorb the heat
off the metal and to prolong the efficiency of the hinge. A gap of 3 -
4mm is required to the head and closing jamb prior to application. A single
door set will fit any door up to 2100mm x 1050mm wide. if necessary additional
strips can be supplied using the refs: FP202 and FP102.
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Figure 1 shows the make up of a door frame fitted with Fireplug FP202 and FP102.
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Figure 2 shows FP202 fitted to closing jamb and head, the leading edge of the door may need adjusting.
Figure 3 shows FP102 fitted over the hinges of the hung jamb.
PLEASE NOTE that ironmongery should be protected using Fireplug Hinge Strip and Lock Protection (ref Fireplug CFPM).