Fire Rated Push Up Shutter 4 Hour Protection Rating
Our Series 23 4 Hour Fire Rated Push Up Shutter are a robust product ideally suited to protect commercial and industrial premises doorways and windows from the spread of fire.
The door is designed for small opening applications where the need for protection is only in the event of fire. The fire shutter stays in the open position, if a fire occurs, once the temperature has reached a threat level, the fusible link separates and releases a drop bar which brings down the door under gravity.
Each roller shutter is made to measure and CE marked, ensuring each product complies with European directives and gives you peace of mind.
Each design has been thoroughly tested and inspected by Exova Warrington Fire Research to BS 476 Part 22 enabling us to issue Declaration Of Performance.
All our Roller Shutters are manufactured in house at our facility in Leigh and are subject to continuous product development, ensuring the products we offer are of the highest quality whilst maintaining ease of installation.
Each roller shutter can be manufactured to suit your specific requirements, with a dedicated team on hand to give advice and technical support. We can back up an already high quality product with first class service and support.
- Fusible Link
- One time use Fusible Link triggered by Fire Alarm
- Powder coated to any standard RAL or BS number
- Special colours available at customer request
B.S. 476 Part 22, Clause 8 (Uninsulated)
WARRES No. – 124382
PUSH UP / PULL DOWN
STATIC / NON OPERABLE
2,500mm WIDE x 2,500mm HIGH
FIRE SHUTTERS OPERATED ON A FREQUENT BASIS NEED TO BE ELECTRIC OPERATION
Cold Rolled 3” curved traditional lath, galvanised to BS729:1971, 20 swg (0.9mm thick). Alternate laths are fitted with high quality pressed mild steel endlocks, which are double pop riveted to prevent lateral movement. A slotted full top lath is attached to the shutter barrel using high tensile hexagon head set screws, then the main curtain is attached. A high strength galvanised (BS729:1971) inverted “T- Section” bottom rail is added to the base of the curtain, typically 1.6mm thick, which incorporates a flat bar added for rigidity and fire intergrity. The shutter curtain is heavy and is not practical for everyday use as a security shutter.
5” Outside diameter Electric Resistance Welded tube (BS 6323), complete with uniquely fabricated helical wound torsion spring assembly, for counterbalancing of the shutter curtain, the counterbalance spring is “undersprung” to assist closure in the event of a fire. The assembly is mounted within the tube on a 1” diameter steel shaft, complete with high quality mild steel bearing blocks, and high grade “sealed for life” bearings.
Endplates are constructed from flat 6mm thick mild steel plate (BS 1449) and bespoke mild steel “cups” are bolted to the endplate using high tensile hexagon head bolts, these “cups” are where the barrel shaft is supported. Fixing angles are formed using hot rolled angle section, 75mm x 50mm x 6mm, attached to the fixing angles are the galvanised (BS 729:1971) shutter guides, the guide section is typically 2 1/2” in depth x 1” inside dimension, the guide thickness is 3mm. A fusible link assembly is also fitted as standard (see note below). The flags are coated in a black zinc phosphate primer paint finish.
Slotted Fire Hood made from 20swg mild steel, galvanised to BS729:1971, c/w 50mm x 9mm obround shaped slots.
Fusible link and drop bar system are fitted to the shutter. When the local temperature reaches 68 degrees centigrade, the fusible link will melt causing the drop bar system to release the shutter curtain and fully close the shutter, forming a fire barrier for up to 4 Hours.
35 KGs Per Square Metre
Maximum Width: 2500
Maximum Width: 2500
Sideroom: Lose 70mm
Maximum Height: 2200, 2500
Headroom: 405mm, 450mm