Technical characteristics of fire metal doors , features manual

Already from the name of this kind of products it is clear that their main purpose - to become an insurmountable obstacle to the spread of flame and smoke.Both within a particular space, and beyond it (in case of fire directly into it).Based on this, there are special regulations (GOST, SNIP), which are the guidelines for all manufacturers of fire metal doors.

As an example we mention some of them, which in varying degrees reflect the issues of standardization of such doors, are important to the builders of the SNIP №№ 21-01 1997, 2.08. (01 and 02) by 1989, and tomanufacturers - №№ GOST R 53307 from 2009 26602. (1 and 2) from 1999, and several others.

makes no sense to consider the parameters (dimensions, weight), even standard door models, as their range is huge.In addition, there are products and non-standard, and some manufacturers produce individual samples according to drawings submitted by the Customer (individual performance).

But before settling on the general requirements for fire doors, it is worth noting, as they generally are.It will be clear all the technical specifications for this product and the features of the individual models.For example, a few drawings.

door "blind»

door glazed

Spark (neravnopolnaya)

«panic»

What characterizes fire doors

fire

defines the time during which the door will be able to perform its function to prevent the spread of flame (denoted by «R»).There are average data for the complete "burnout" premises.For residential time is less than 3.1 hours, for service - 40 min.Although these figures are approximate, and, as much depends on the room size, their "stuffing", the ventilation system and other factors, they do give an idea on what model of doors in this regard should be guided.

resistant strain

This characteristic indicates how long the door will maintain the integrity of all sizes ( «E» symbol).Consequently, for this time slot are formed, through which the room can penetrate smoke and fire.The higher the value, the better.For example, the presence of the marking E60 notation indicates that during such hours door able to reliably withstand fire and smoke.

Reduced thermal insulation qualities

door should not only prevent flame penetration, but a spike temperature inside the room, she closes (the figure is marked with «I»).This is particularly important if the next to the opening side of the room are placed the objects from the high thermal exposure can either catch fire or come into disrepair (deformed, char, melt).For example, wood products plastics, paper products.

Additionally, doors can be characterized and has a number of indicators:

• for most glazed models - «W» (maximum level of radiation transport);
• for all - limit dymostoykosti.

Metal fire doors differ from wooden counterparts (there are).Than?

• frame - usually a metal profile.
• Cloth - steel sheet.Along the perimeter of the seal attached to it from the smoke and tapes of refractory material.
• Filler - basalt wool.A more expensive option - fireproof foam.

Extras / accessories - door closer (mandatory).Castle "turnkey" - only on the outside.Inside the fire door must be opened with the handle of the pressure action.This is extremely important, because in case of emergency is a technical solution can significantly save time on the evacuation of people.As a rule, a system of "panic" when the blade swings from one touching the door handle.

is, in principle, and all you need to know about metal fire doors.Since manufacturers always something will improve, the specific characteristics of the models should be specified in the passport for product.