Fire rated sliding gates generally close large openings in the fire partition walls of factories, industrial warehouses, public car parks, shopping centers, trade fair pavilions through which equipment, forklifts or bulky means of transport must pass. They are also used in smaller sizes instead of fire doors hinged on vertical axes because when they open they take up less space.
It must be said that fire rated sliding gates are heavy and not suitable for being opened several times a day. In case of frequent traffic it is advisable to keep them normally open, held by electromagnets controlled by special smoke and heat detectors. In case of fire they will release the leaf/leaves which will close on their own due to the gravitational counterweight to which every leaf is connected.
Fire rated sliding gates kept normally open can be installed coupled with rapid opening doors to avoid air drafts or create a thermal barrier or with other shutters for different desired performances
The fire rated sliding gates are available EI 60 and EI 120 , single or double leaf. To see which type can be installed and if that type can be installed on a specific wall opening, it must be checked if the wall is suitable, if there is enough space to install it and open the leaves completely.
The leaves slide externally to the wall and the wall must be coplanar and without obstacles for the entire part occupied by its external frame dimensions, including the upper vertical portion on which to fix the rail, the front or rear counterweight and the overlaps of the leaves on the walls necessary for fire resistance. Sliding gates are manufactured in different types so to adapt to the actual space available in the desired wall opening.
In the DOWNLOAD section of this web site the product sheets of all the available types of sliding gates are downloadable and consultable. In each one are specified the encumbrances beyond wall opening dimensions (table with A and B values) which vary depending on type and size of gate.
Due to their “hanging” modular composition, sliding gates have a lower unit price per square meter and a smaller opening encumbrance if compared to hinged gates (hinged on vertical axis like the normal fire doors), for this reason they are preferred if there is the space to slide leaves open.
Metal fire rated sliding gates EI 60 and EI 120 compliant with EN 16034 and EN 13241 standards, CE marked, to be kept normally open or closed, to be placed on masonry walls or on partitions having a metallic structure covered with fire rated plasterboard slabs or on partitions composed of fire rated sandwich panels reinforced externally with an insulated tubular supporting structure.
Top-hang perforated metallic rail to be fastened with screws or plugs (these not included) made of low-friction steel profile on which slid overhead trolleys holding modular panels forming the leaves.
Panels made of double sheet metal casing with special fire rated core, total thickness 120 mm in the EI 120 version and 100 mm in the EI 60 version with push-in joints fixed with screws in sight, recessed handles on the 2 sides of each leaf, without lock and keys.
Leaves with upper and lower stiffening structure in sheet steel. Counterweights for the self-closing connected to the leaves by steel cables. Labyrinths against the penetration of fire and smoke in press-formed sheet metal including casing of the counterweight and the vertical part of the upper rail (not included for heights over 2700 mm). Thermo-expanding gaskets placed on all labyrinths and between panels.
The accessories may vary depending on type and size of gates, normally included in the price are: 1 shock absorber with magnetic head per leaf, 1 or more hydraulic brake VTK, electromagnets, release button, 2/3-wheel pulleys (called sizes) in case of low but wide gates.
Gates without floor thresholds up to a width of 4900 mm. Wider gates have a threshold of mm. 50 x 20 H protruding from the finished floor in the EI 120 version and mm. 30 x 20 H in the EI 60 version, or instead of threshold few “stone traks” devices. Lower edge of leaves with cavities for sliding olives positioned on the floor beyond the net opening.
Finish with thermo hardened epoxy-polyester powders, color RAL 7035. Other shades available at extra cost. On request, manufacturing of doors with leaves and covering casing in AISI 304 or 316 stainless steel.
Metal plate with identification data and CE marking affixed to the recessed handle in compliance with legal requirements. Accompanying documentation: installation, use and maintenance instructions, DoP declaration of performance, declaration of conformity to the machinery directive.
Maximum dimensions (March 2024, extensions in progress): EI 120 maximum opening 50 square meters and within meters 10,0 x 8,22 H single leaf and 5.6 x 5,02 meters H double leaf. EI 60 maximum opening meters 10 x 8,22 H single and double leaf.
Approximate weight 50 kg/square meters.
Packaging on disposable stands.
Doors to be installed on one or the other side of a plumb fire rated wall without protruding obstacles to allow the doors to slide completely open.
Indoors use in environments without strong air drafts and low traffic.
Assembly to be carried out by specialized personnel.
Following the drawings of the main types. The thicknesses and dimensions of gates are specified in the forms available in the download section. The wicket door (pedestrian door) is inserted in the drawings in dotted lines as it is optional.
The vertical section called “CONCRETE BEAM.” in the forms is the standard fixing of the rail to the existing portion of vertical wall over the opening. The “BEAM WITHIN HEIGHT is the alternative fixing system to extra costs if there is no portion of vertical wall over the opening on which to fix the rail. The “BEAM WITHIN HEIGHT” can be realised by the buyer, details in our intallation instructions.
This is the basic solution for single leaf.
This is the basic solution for double leaf.
This is the solution to gain clear passage space if there is a flat wall in front.
The red portion of wall indicated by the arrow is to customer’s expense, it can also be done after installing the gate.
This is the solution to gain clear passage space in case the space to open the leaf is limitated.
Available is also the monolateral telescopic type, not shown in this section, in case of extreme space lack send us a plan with available measurements at building site to analyse it.
The red portion of wall indicated by the arrow is to customer’s expense, it can also be done after installing the gate.
This is the solution to gain clear passage space in case the space to open leaves is limitated.
The following optional accessories or finishes are available to request.
All colors of the RAL range available except pearly, phosphorescent, particular yellows etc.
According to standard EN 1634-3 and supplied with specific DoP. Available on all sliding gates including those with wicket door and also as a supplementary delivery on previously delivered CE marked sliding gates.
For fixing the gate to the ceiling if there is no vertical portion of wall above the opening on which to fix the sliding rail. The net passage in height will obviously be reduced. Tubular metal beam normally with a section of 100 x 200/250 mm H insulated with 150 kg/cubic meter rock wool and covered with at least 2 layers of fire rated plasterboard. The beam within height can also be prepared by the buyer respecting the description in the installation instructions of the gate. The side walls are usually present and the beam must be positioned in the opening between the walls so that the beam will be aligned with the side wall to create a single support surface for the guide and the counterweights.
The following pedestrian doors are available with or without panic bar, which can be installed by pulling or pushing towards the supporting wall. The position of the pedestrian door cannot be in the first or last modular panel of the sliding leaf.
Clear passage width mm. 850 or 1140 without threshold or with threshold 92 mm height from the finished floor.
Or clear passage width 950 or 1200 mm with yellow-black striped threshold 20 mm height from the finished floor. The version without threshold is the one with the highest surcharge.
Depending on the type and size of gate with wicket door, an upper guide of H 300 mm. instead of 250 mm. and a 60 mm. spacer metal tubes on 3 sides to distance the gate from the wall may be necessary.
The stable components of the sliding gates like leaves, frames, guide covers, counterweights containment box etc. and some accessories are available made of stainless steel, those not available in stainless steel are interchangeable any time after gate installation if they rust or no longer work properly.
Unless differently ordered all sliding gates are supplied without lock and key. The leaves close themselves and remain resting against the stopping profile due to the pulling of the gravitational counterweight.
It is possible to order gates with lock and key lockable from both sides of gate. On doors already installed it is possible to add only a locking system to be positioned at opposite side of closing side and accessible only from the side of the wall on which the gate was installed, see picture below.
The installation of sliding gates also on walls different than masonry is possible, for example on a fire rated partition made of a sub-structure of metal tubes of suitable section filled with 150 kg/m3 of rockwool and covered by fire rated plasterboard slabs. Reinforcing metal sheets or tubes must be inserted in the portion over the opening where the sliding rail will be fixed. The terminal parts of tubes have to be anchored to the side walls, ceiling and floor.
See drawing below: B = Metal structure. A and C = coverings and infills of plasterboard sheets.
Another possible installation is on prefabricated fireproof sandwich panels consisting of 2 metal sheets and a fire rated polyurethane core, equipped on the side of the desired installation of the sliding gate with a load-bearing structure similar to the previous described one, but all positioned externally, resting on the panel and firmly anchored to floor and ceiling.
These are all works which, after specific planning, can be prepared also by the buyer himself or a trusted blacksmith by him appointed.
Request more information specifying allover desired dimensions of partition and net passage dimensions of gates.
Sliding gates are not manufactured in any standard format and pricing is made to request from time to time depending on the dimensions and characteristics of each specific case. To receive offers, provide information on the type and dimensions LN x HN of desired gates (see forms in the DOWNLOAD section) together with drawings of planned partitions, if possible with pictures of the entire area affected by the gates including the upper portion for fixing the rail and the side walls along which the leaves will have to slide completely open. Please inform us at first request also of any desired optional among those listed above to be included in the total price or to be quoted separately.
