This is a special type of fire enclosing systems that are used to fill openings in fire barriers of various building structures (buildings and structures). Their main task is to contain the spread of fire and combustion products in fire conditions.

It is worth mentioning that from the point of view regulatory documents PD also means fire gates, hatches, valves, windows, curtains and curtains, so here and further we will use general term“fire doors” or “PD”.

Except for cases when we are talking about a specific type of structure (gates, hatches, windows, etc.) for filling openings in fire barriers.

Specifications PD are classified according to the following main characteristics:

Fire resistance limits - E, EI, EIW, EIS, EIWS

This is the period of time (indicated in minutes or hours) from the moment the flame begins to impact the surface until the onset of one or more limiting states.

The fire resistance limit of PD is determined during fire resistance tests in accordance with GOST.

Main limit states of PD:

• E - loss of door integrity, and/or
• I - thermal insulation ability.

Other types of limit states include:

• W - achieving the maximum value of heat flux density - for glazed PDs with a glazing area of ​​more than 25% of the area of ​​the canvas, and
• S - achievement of the maximum value of smoke and gas tightness - for smoke and gas tight PDs with a glazing area of ​​more or less than 25% of the area of ​​the canvas.

The fire resistance limit of fire-resistant structures is measured in minutes - 15, 30, 60, etc. minutes and is designated as EI-15, EI-30, EI-60 respectively. The fire resistance limit of fireproof windows is indicated only by the time of loss of integrity (E), i.e. E-15, E-30, E-60.

When testing structures for fire resistance, the lowest value for the onset of the limit state is taken.

So, if during testing the structure lost its thermal insulation ability (I) at the 35th minute, and its integrity (E) at the 65th minute, then the product will be assigned a fire resistance limit of EI-30.

It is also important that the fire resistance limit indicators should be read as “no less than (15, 30, 45, 60) minutes”, that is, a design with a fire resistance limit of EI-60 can hold back fire for longer than 60 minutes, but no less can't.

Types and classes of PD

According to table No. 24, Federal Law 123, there are three types, each of which corresponds to a particular fire resistance limit:

• PD type 1 corresponds to fire resistance limit EI-60 (60 minutes);
• PD type 2 corresponds to fire resistance limit EI-30 (30 minutes);
• PD type 3 corresponds to fire resistance limit EI-15 (15 minutes).

Canvas materials

This refers to the material from which the structure is made.
Based on the type of material, the following types of PD are distinguished:

• Metal (FDM) - the leaf, like the frame of such doors, are made, as a rule, of steel with a thickness of 1 mm, hence their other name - steel (iron) fire doors;
• Wooden (WPD) - the canvas consists of wood, processed in a special way, and/or fire-resistant wood-based materials. The box can be either metal or wood;
• Glazed - metal or wooden PD with glazing less than 25% of the area of ​​the canvas;
• Glass doors and partitions - the door leaf of such structures is made of more than 25% of translucent material, as a rule, it is fire-resistant glass or fire-resistant glass with gel-like non-flammable filling. The frame and frame of the door leaf of such doors most often consist of aluminum.

There is a myth that there are plastic PDs, but this is nothing more than fiction. Although a fire door can be lined with plastic (this is especially true for wooden fire doors), the technology for making a plastic fire door does not yet exist.

This is due to the fact that PVC products, in principle, cannot withstand prolonged exposure to fire - plastic not only has very low fire-resistant properties, but is also extremely toxic when burned, which is unacceptable for this type of structure.

Where are PDs installed?

These places are strictly regulated by regulatory documentation. In general, we can distinguish the following main places where PDs are installed:

• In places with large crowds of people - shopping and business centers, cinemas, hotel complexes, hospitals, schools, libraries, museums, etc.;
• Technical rooms, as well as rooms with electrical, gas and other fire-hazardous equipment - electrical switchboards, production rooms, boiler rooms, warehouses (especially warehouses with fire-hazardous and explosive substances), kitchens of canteens and restaurants, etc.;
• On the routes for evacuating people from a building (premises) there are exits to emergency staircases, exits from elevator halls, emergency and fire exits.

Design Features

The following design features of fire-resistant structures are distinguished:

Number of door leaves

There are two main types:

• Single-field (in technical documentation, as a rule, they are not designated at all or are designated by the number 1);
• Double-field (indicated by the number “2”, for example G2 - deaf double-field right).

In another way, such doors are called single-leaf and double-leaf, respectively.

In turn, double-leaf fire doors are divided into equal-floor - when both door leaves are the same size and opposite-floor - when the door leaves are of different sizes.

There are active and passive doors. An active sash is one on which there is a handle for opening and closing, a passive sash is one without a handle. The active leaf can be either right or left;

Opening direction

Fire doors, like any other, can be right-handed (usually not indicated in technical documentation) or left-handed (indicated by “L”, for example GL door is a solid single-leaf left door).

Often the direction of a door is mistakenly determined by the opening side - if the door opens to the left, then it is left-handed.

This is not true, in fact, the side of the door is determined by the outer door hinges on the side of the active leaf.

Those. if you stand facing the door so that the door hinges of the active leaf are on the outside (or on the side of the door frame closest to you, if the hinges are hidden), and if they are on the right, then the door is right, if the hinges are on the left, then the door is left;

Door leaf type

There are two main types:

• Blind canvas - in the technical documentation it is designated “G”, for example GL - blind single-field left;
• The glazed leaf is designated “C”, for example S2L – glazed double-leaf left; in another way, glazed fire doors are called translucent.

When choosing a fire door, it is important to remember the following:

Installation and assembly

Can only be carried out by an organization licensed for this type of work.

If you do not have a license to install fire doors, installing such doors yourself is strictly prohibited. Liability for such a violation can be very serious, even criminal.

When purchasing, you need to check with the seller whether he has a license to install doors.

If the seller is not involved in installation, you will have to look for a third-party organization (one that has a license for this type of work), which means you will have to spend your time and money finding a licensed installer.

Certification of fire-resistant structures

Actually, only those doors that have passed fire resistance tests can be called fireproof, based on the results of which a certificate is issued.

In other words, the PD certificate is a guarantee that the doors you purchased are truly fireproof. This means that in a fire they will help save lives, material assets and property.

Product passport

It is important to remember that the certificate of conformity and the passport of fire doors are two different things.

Each manufacturer may have its own passport for a specific product, in terms of content, volume, etc., but the certificate has one strictly established form.

A passport without a certificate of conformity is not valid, and such a door cannot be called fire-resistant.

Cost and approximate prices

When purchasing PD, you need to be guided by the rule - “the bigger and better, the more expensive.”

That is, the larger the area of ​​the door leaf and glazing, the higher quality and more expensive the finishing materials and fittings, the more additional equipment installed on the leaf (chips, transoms, ventilation grilles, etc.) - the more significantly the price will increase.

Remember!

If a door is called fireproof, it means that similar designs from a particular manufacturer have been tested for fire resistance.

This means that this type of structure meets the requirements of GOST and they must have a certificate of conformity, and in any case, they are required to contain fire for the stated time.

That is, a door that costs 10 thousand rubles will hold back fire in the same way as a door that costs 20 thousand rubles - that’s a fact. And if the seller assures you otherwise, this is nothing more than a marketing ploy.

The thing is that an expensive door will most likely look more expensive and elegant. And what kind of fire-resistant construction is needed for your specific situation is up to you to decide.

Production time

Operation scheme

Leave a request via the form on the website or by email

Preliminary assessment of the object for compliance with the project, measurements, conclusion of a contract, prepayment

Making a door

Delivery and installation

Distinctive features of the catalog products

An important element in the safety system of objects are fire-resistant components. They will reduce or eliminate the spread of fire. By purchasing fire doors, you can not only protect property, but also save lives.

A large assortment of different designs and shapes helps bring our products closer to to conventional analogues. In the company you will get acquainted with a wide selection different types and configurations:

• custom or standard dimensions;
• without threshold or with threshold;
• interior or entrance;
• single or double field;
• with or without ventilation holes;
• solid or with inserts.

Our specialists will help with the selection and purchase of a model depending on the object and its features. They will advise on all issues, offering the most suitable option depending on the tasks and wishes.

In production we use only special non-flammable materials, including fillers and impregnations. This increases the devices' resistance to heat and fire.

The main function of our equipment is to slow down or stop a fire within one room before rescuers arrive. A double high-quality seal installed along the edge will help protect against a smoke screen. Various organizations and businesses are turning to metal options as part of their protection. From us you can order a fire door of any design and size, with or without glass, which can withstand the pressure of any flame. We will fulfill all wishes regarding configuration, quantity and type.

Where are fire doors installed?

In what cases are fire doors installed?

In accordance with fire safety regulations, such barriers must be installed in places with an increased risk of fire. Fire doors delay the spread of suffocating smoke and fire, making it possible to evacuate people in the building. Let us point out other advantages of such products:

• Models with ventilation grilles are often used as external or interior doors.
• They are made of high-strength steel, so they protect not only from fire, but also from criminal attacks.
• Depending on the layout of the building, you can choose models with different fire resistance limits - within 30-90 minutes. During this time, specified in the passport, the fire will not penetrate into the room.
• Optionally, it is possible to install anti-vandal coating, unpickable locks, ventilation grilles and other things.
• Due to the difference in design, you can choose fire doors to match the interior of your office or apartment.

Most often, fire barriers are installed in public places, near emergency exits, and in warehouses.

What is a fire door made of?

Depending on the design of a particular model, the number of layers can vary significantly. However, in any fire door it is possible to distinguish internal and outer layer. The first consists of thermal insulators, the most popular of which is non-flammable mineral wool. The outside of the doors consists of plastic or metal painted with fire-resistant paint. Fire requirements for door size:

• Dimensions of single-leaf doors: height – 2030, 2050, 2070, 2100 mm; width - 860, 880, 900, 950, 1000 mm.
• Dimensions of double-leaf doors: height – 2030, 2050, 2070, 2100 mm; width – 1300 or 1500 mm.
• The dimensions of the door frame are selected 20 mm narrower than the doorway on each side.
• The width of the staircase doors is equal to or greater than the width of the cells themselves.
• The width of the emergency exit is such that a stretcher with a victim can pass through it.
• On technical floors, evacuation passages are constructed with a height of at least 180 cm. When laying utility networks, emergency routes pass through doors with dimensions of at least 75×150 cm and through hatches with dimensions of at least 60×80 cm.
• The thickness of the door depends on its fire resistance and is selected individually.
• The area of ​​the glass unit should not occupy more than 25% of the total area of ​​the canvas.

You can obtain more detailed information from the specialists of NPO Pulse.

Fire door installation standards

The following requirements apply to fire doors:

• Fire resistance limit is not less than 30 minutes.
• Fire hazard class – no higher than K0.
• The degree of flammability of the materials used is from G1 to G3.

At the legislative level, there are no specific requirements for the installation of fire doors. In this case, they are guided by the standards for installing steel door blocks, regulated by GOST 31173-2003. A number of recommendations are taken into account:

• The doors are fastened using anchors with a diameter of more than 1 cm. Between individual fastenings, at least 70 cm is maintained.
• Horizontal and vertical deviations when installing the door should not exceed 0.15 cm per meter. Deviation from symmetry towards the opening slope is maintained within 3 mm.
• Polyurethane foam is used to fill cracks.
• In accordance with fire safety rules, doors on escape routes must necessarily open in the direction of exit from the building being served.

You will find requirements for the installation location of fire doors in three SNiPs - 21-01-97, 2.08.01-89 and 2.08.02-89. If you do not want to analyze these documents, entrust the installation to the specialists of NPO Pulse. They are fully aware of all the necessary information, will help you choose the right door and even install it.

Advantages of ordering from us

Our production is concentrated in the Tula region and is equipped with the latest equipment that meets European quality standards and allows us to produce fire doors of any configuration and size.

The products are certified and comply with GOST standards. Each product also comes with a package of documents and certificates. We guarantee high product quality.

Cost of proposed structures

The price directly depends on:

• models,
• dimensions,
• forms,
• material,
• the presence or absence of additional requirements and functions.

For example, a fire door with anti-panic or ventilation grille will cost more.

When manufacturing our devices, we strictly comply with all standards and regulations, regardless of type, size and cost. Our products undergo mandatory certification and are characterized by a long service life. Remember: high-quality fire doors are not cheap, so don’t skimp on safety.

The production and sale of equipment is carried out with free support from experienced specialists who will assist in the selection, answer all your questions, agree on the time of the surveyor’s visit, and tell you about the conditions of delivery and installation.

Payment and delivery of fire doors

Production time: Making a new design will take several days. The production process begins with a project, which you can draw up yourself or use the help of our employees.

Control: After production, fire doors undergo quality control and are then installed.

Ordering finished products: If you need to place an order quickly, you select a product with the appropriate size that is in stock.

We cooperate with organizations throughout the country, carry out design and measurements, and also accept individual orders. It is possible to purchase products and materials wholesale and retail.

We deliver to any region of Russia.

Installation and installation of equipment is carried out by qualified installation teams. We have extensive experience in the production of modern fire protection and fire barriers.

We also have special offers available.

Free measurement when ordering
from 200,000 rub.

Free delivery within the Moscow Ring Road for orders over RUB 100,000.

Design in a specialized bureau.

We repair and service doors under warranty

Our fire doors are tested to ensure they are durable. They are resistant not only to high temperatures, but also to other negative factors– damage, scratches, moisture, weather conditions.

So, all fire doors are manufactured according to technical specifications. Each manufacturer writes them independently. Below are the specifications according to which doors are produced in our production.

TECHNICAL CONDITIONS

These technical specifications apply to metal doors installed in residential and public buildings. Doors are used to prevent the spread of fire.

Doors are manufactured single-leaf and double-leaf. Type of filling: heat-insulating board. The list of regulatory documents referenced in these technical specifications is given in Appendix 1.

Fire resistance limit - the maximum time of exposure to a building structure high temperatures, after which the element loses the ability to maintain at least one of its fire-fighting functions.

EIS 60 – fire resistance limit of 60 minutes for loss of integrity (E) and thermal insulation capacity (I), regardless of which of the last two limit states occurs earlier, S – smoke and gas tightness.

An example of a product designation when ordering: “Metal fire-resistant, smoke-gas-tight door.” TU 5262-005-20504122-2013, Type DP 60 – 1 p(l) – s, where

— 60 – fire resistance limit;

— 1(2) — single-leaf or double-leaf;

— p(l) – right (left) execution;

C – glass.

TECHNICAL REQUIREMENTS:

1.1. Doors must comply with the requirements of these technical specifications, GOST 53303-2009, GOST 53307-2009, GOST 23118-2012 and drawings approved in the prescribed manner, standard samples.

The appearance is shown in Appendix 2.

1.2. Materials used for making doors:

- frame - sheet metal. 1.5 GOST 18804-90 / 08 ps GOST 16523-98

- canvas - rolled sheets. 1.2 GOST 18804-90 / 08 ps GOST 16523-98

— Fire lock Apecs inox zn 2000 or equivalent.

— Cold smoke seal CycloneE-profile 9x4mm. or similar.

— fire retardant materials:

1. non-flammable thermal insulation board RockwoolConlitSL 150 (ParocFPS 14) or equivalent with a density of at least 140 kg/m3

according to GOST 30244 (NG according to SNiP 01/21/97);

2. thermosetting sealant “Kerafix-Flexpan” 1.5x15x25000mm self-adhesive TU 5728-005-13267785-99 or equivalent.

3. Glazing – fireproof multilayer glass Brand Glass PARAFLAM-EIW60, total thickness 28 mm. (TU 5924-001-610674158-09), or equivalent

1.3. Main parameters and dimensions:

1.3.1. Overall dimensions: Table No. 1

Door type	View	Ultimate resistance, EI	Doorway dimensions, mm *		Door leaf dimensions, mm *
			height	width	height	width	thickness
DP-60	DP 60-1	60	2120	1020	2100	1000	63
	DP 60-2	60	2120	1720	2100	1700	63
DPS-60	DPS 60-1	60	2120	1020	2100	1000	63
	DPS 60-2	60	2120	1720	2100	1700	63

* Deviation of overall dimensions of single-leaf and double-leaf doors + 10% / - 30% from those indicated in the table.

1.3.1.1 The thickness of the coating should be 70-120 microns.

1.3.1.2 Doors must have the correct geometric shape.

The non-straightness of linear elements should be no more than 2 mm over a length of 1 m and no more than 3 mm over the entire length.

1.3.1.3 The non-perpendicularity of the sides of the doors should not be more than 2 mm per 1 m of width or length.

1.3.1.4 The difference between the front surfaces of the frame and the door leaf relative to each other should not be more than 3 mm.

1.3.1.5 Deviations are allowed:

Overall dimensions of the door leaf + 3 mm;

Inequality of diagonals (non-rectangularity), no more than 4 mm;

The non-flatness of door blocks should not exceed 2 mm over a length of 1 m and 3 mm over the entire length.

1.3.1.6 The maximum deviations of the nominal dimensions of the door leaf and frame must provide a gap in the rebate of + 3 mm.

1.4. Characteristics.

1.4.1 Sharp edges must be rounded.

1.4.2 Welded connections of door elements must comply with the requirements for welded connections in accordance with GOST 14771-80 and SNiP 3.03.01.-87.

1.4.3 Welding should be carried out using welding wire Sv08G2S, in accordance with SNiP 2-V.3-81*. Factory and installation joints of elements should not have sharp protrusions or edges.

1.4.4 Fastening the locking mechanisms must ensure that they cannot be dismantled from the outside.

1.4.5 The force applied to the door leaf to open it should not exceed 50 N.

1.4.6 Mechanisms for opening doors must comply with the requirements of GOST 5089-2011 and regulatory and technical documentation for specific types of mechanisms.

When closing the door with a lock, the play of the lock latch in the frame is allowed no more than 2 mm.

1.4.7 Doors must have sufficient strength and stability under conditions of transportation, installation and operation.

1.4.8 The surface of the doors should not have dents, nicks, cracks, or breaks.

1.4.9 The door must fit freely into the frame without friction.

1.4.10 The door leaf must be installed on at least 2 hinges.

1.4.11 The door block must be secured at six points with anchors. The type of anchor is selected depending on the material of the doorway.

1.4.12 The door frame along the entire outer surface must be covered with thermosetting sealant.

1.4.13 The total average service life of the door must be at least 5 years.

1.5. Completeness.

1.5.1 Doors must be supplied complete by the manufacturer. The kit should include:

— door block (frame, door leaf, lock with latch handle, sealing rubber, hinges, keys);

— fasteners;

— closer if necessary;

— a copy of the fire safety certificate;

1.6. Marking.

1.6.1 Marking must be made on a nameplate (by embossing a font) or with a permanent marker installed on the inner surface of the fabric, in the upper loop corner and must contain:

— name of the manufacturer;

— order number;

— year of manufacture;

— designation of these specifications;

— fire safety compliance mark.

1.7 Transportation and storage.

1.7.1 Door blocks must be transported individually or in stacks.

1.7.2 The method of connecting doors into stacks must prevent their mutual displacement and damage during transportation and storage.

1.7.3 A tag with markings is attached to each door:

Order No.;

designation of these specifications.

ACCEPTANCE RULES.

2.1. Doors must be accepted by the technical control of the manufacturer.

2.2. To confirm the compliance of doors with the requirements of these specifications, acceptance tests are carried out.

2.3. Acceptance tests are carried out according to paragraphs. 1.1.; 1.3.

2.4. Each door is subjected to acceptance tests.

2.5. If unsatisfactory test results are obtained for at least one of the indicators, after eliminating the defects, repeated tests are carried out on a double sample; the results of repeated tests are final.

CONTROL METHODS.

3.1. Control of deviations in the linear dimensions of door blocks should be checked with metal tape measures of the 2nd class in accordance with GOST 7502-98 and with a caliper in accordance with GOST 166-89.

3.2. The correctness of the form (flatness, straightness, perpendicularity of the elements) is checked by a control conductor.

3.3. Quality control of welds and their cross-sectional dimensions must be carried out in accordance with GOST 3242-79 and SNiP –Sh-18-75.

3.4. The marking is checked by external inspection.

SAFETY AND ENVIRONMENTAL REQUIREMENTS

4.1. Products, as well as materials and components used in their production must comply with safety and security standards and regulations environment, approved in the prescribed manner and valid at the time of product release.

4.2. The applicability of products in building structures with increased (special) requirements (for fire hazard, aggressive environment, impact resistance and other indicators) must be confirmed by the conclusion of the relevant authorities in the prescribed manner.

4.3. There are no other special safety or environmental requirements for the products.

INSTALLATION INSTRUCTIONS.

5.1. Doors are installed in accordance with the requirements of SNiP 3.03.01-87.

5.2 When installing the product, gaps in the junction unit (between the door frame and the opening) of 20-30 mm are allowed.

5.3 Seal junction points with cement mortar or fire-fighting foam

MANUFACTURER WARRANTY.

6.1 The manufacturer guarantees that the products comply with the requirements of these technical specifications, provided that the consumer complies with the rules of transportation, storage, installation and operation.

6.2 The warranty period for the products until failure-free operation is 1 year from the date of installation of the product.

6.3 The reliability of the product is established for at least 5 years from the date of installation of the product.

APPENDIX 1

INFORMATION

TRANSPARENCY

Designation ND for cat. Item number

Specifications №

for the production of fire doors

metal solid DPM-60 and glazed DPMO-60

with fire resistance limit EI 60

Developed by:

Ch. engineer - steel"

Constructor - steel"

Klin 2010

1.General information

These specifications apply to the manufacture and acceptance of fire-resistant metal doors DPM-60, DPMO-60 (hereinafter referred to as doors), intended to protect building openings in cases of fire, as well as to prevent and spread fire and combustion products from premises or a fire compartment with a fire source in other premises.

In addition to fire-fighting properties, the door has good heat and sound insulation characteristics and a high level of burglary resistance.

The design of the door and its finishing allows it to be used in both industrial and civil construction.

2. Technical characteristics and description of the door design DPM-60, DMPO-60*.

overall dimensions, mm:

Height ----up to 2500

Width---up to 1050

fire resistance limit, ЕI min0

door leaf opening angle, deg-170

opening force, kgf

canvas weight (1 sq. m), kg-----75

service life, years -----15

The door is manufactured in accordance with GOST R and the requirements of SNiP 3.01-85

Door DPM-60, (DPMO-60) (sheet 1) consists of a door frame (sheet 2) and a door leaf (sheet 4). The door frame is made of two profile pipes welded together (sheet 3, pos. 1, 2), pressed gypsum is placed inside the pipes (sheet 3, pos. 7).

The ends of the pipes, after laying the gypsum, are welded with metal plates. Self-adhesive fireproof tape is used as a seal.

The frame of the door leaf is made of profile pipes (sheet 5, 6, item 3), into which pressed plaster is also placed (sheet 6, item 7). Fire-resistant glass* is installed in the upper part of the canvas (sheet 6, item 9). A metal sheet is applied to the outer and inner parts of the canvas (sheet 6, item 4), and a fireproof mineral plate is placed inside the canvas (sheet 6, item 8). A fireproof lock is used as a locking device (sheet 6, item 10).

To hang the canvas on the box, steel adjustable hinges are used (sheet 6.7, item 11).

The door is painted with polyester powder paint.

3. Requirements for the manufacture of metal door structures DPM-60, DPMO – 60

3.1 The door is manufactured in specialized production conditions using mechanized methods of material processing, assembly and welding of parts.

3.2 Metal storage, marking, straightening, bending and processing of edges of profiles and sheets are carried out in accordance with clause 21.1 - 2.13 of section 1 of chapter SNiP 111V.5-85 (mechanical processing of metal)

3.3 Metal cutting is carried out using guillotine shears and cutting machines.

3.4 When assembling and welding the door, the requirements set out in clauses 2.14, 2.56 of section 1 of chapter SNiP 3.01.01-85 and the additional requirements of these specifications are met.

3.5 The deviations in the actual dimensions of a metal door should not exceed the values ​​indicated in Table 1.

Table 1

4. Technology of welding, assembly and control in the production of doors DPM-60, DPMO-60.

4.1 Preparation of a profile pipe for welding the door frame.

4.2 Laying pressed gypsum in a profile pipe.

4.3 Assembly and tack of profiles on the jig table. After tacking, it is necessary to check the geometric dimensions of the box.

4.4 Welding of box profiles. When welding seams are applied, the tacks are completely melted. Seam length no more than 4mm, L=30mm, pitch 100mm. After applying all welding seams, they must be cleaned of slag and metal spatter.

4.5 Quality control of welding seams is carried out in accordance with the requirements of clause 2.7 of section 2 of chapter SNiP 301.01-85. By appearance welds must meet the requirements set out in clause 2.48 of section 2 of chapter SNiP 301.01-85. After welding and cleaning the seams, the geometric dimensions of the box are checked again.

4.6 Preparation of profile pipe and sheet metal for welding the door leaf.

4.7 Laying pressed gypsum in a profile pipe.

4.8 Assembly and tack of profiles on the jig table. Tacking the outer sheet of metal to the outside of the profile. After tacking, it is necessary to check the geometric dimensions of the web.

4.9 Welding of profiles and sheet metal. When welding seams are applied, the tacks are completely melted. The length of the seams is no more than 4 mm, the pitch is 100 mm. After applying all welding seams, they must be cleaned of slag and metal spatter. After tacking, it is necessary to check the geometric dimensions of the finished web and its plane. If necessary, make straightening.

4.10 After the frame and leaf are ready, they are assembled with the installation of appropriate gaps, as well as tack and welding of door canopies (hinges).

4.11 Installation of fire-resistant glass in the canvas.

4.12 Laying a fireproof slab (mineral wool “LIGHT BATTS” produced). After the door leaf is ready with outer sheet metal, fire-resistant mineral wool is placed in it in the form of pre-prepared slabs. Laying eliminates the possibility of joining the slabs end-to-end; all joints are made overlapping.

4.13 Installing the inner sheet of metal on the canvas. The metal sheet is installed after laying the fireproof slab. A pre-prepared sheet of metal is attached to the frame using electric arc welding or using screws (self-tapping screws). The pitch of the weld seam is the same as when fastening the outer sheet.

4.14 Installing a lock. After all welding work is completed, the lock is installed and fastened into the door leaf. A lock is inserted into a pre-prepared pocket through a slot in the outer perimeter of the profile. Next, holes are drilled and threads are cut in the places where the lock is attached. Fire safety locks “Guardian” brand 3B-7, RMP-004.006, manufactured (GOST) are used. After adjustment, the lock is temporarily removed.

4.15 The door is prepared for finishing after fitting the lock. All welding seams are cleaned of slag, seams, burrs and sharp edges are thoroughly cleaned, as well as, if detected, rust stains. Then the surface of the box and the canvas is degreased.

4.16 Door finishing. Decorative finishing of the door is made by painting by electrostatic powder spraying with epoxy polyester paint, then drying it in an oven at a temperature of about 200ºC. Powder paint has such properties as high resistance to temperature and atmospheric influences, and also has a wide range of color scheme, corresponding to the RAL catalogue. Powder paint Corro-Coat MX complies with state sanitary and epidemiological standards in accordance with GOST 12.1.007-76.

4.17 Finishing, quality control, door acceptance. After painting, finishing and adjustment work is carried out. It is necessary to install and secure the door to the finishing slipway. Fire seal sticker on the door frame. Check for ease of movement when opening and closing the door. If necessary, the canopies are adjusted and lubricant (Litol-24) is added to them. Check for ease of movement when unlocking and locking the lock.

Final check of the quality of painting and checking the geometric dimensions of the box and canvas, as well as checking for helical shape.

After all operations are completed, the product acceptance certificate sheet is filled out, a serial number is assigned to the product, a passport is filled out, and the door is marked and packaged.

5. Service life and warranty for products.

The estimated service life of the door is 15 years. The canopies are subject to the greatest wear and tear during door operation, so it is necessary to lubricate the canopies 1-2 times a year. If wear is detected on the hinge ball or adjusting screw, they must be replaced with new ones. During the operation of the door, it is also necessary to check the integrity of the self-adhesive seal. If a violation of integrity is detected, the damaged area must be replaced.

6. List of regulatory documents.

GOST 30247.0-94 “Building structures. Rules for conducting certification tests for compliance with fire safety requirements of the All-Russian Research Institute and Production Association of the Ministry of Emergency Situations of the Russian Federation.

Order of the Ministry of Emergency Situations of the Russian Federation No. 000 dated January 1, 2001. “List of products subject to mandatory certification in the field of fire safety”

SNiP 01/21/97 " Fire safety buildings, structures"

GOST “Low-flammable materials”

GOST 9087-81 “Requirements for welding electrodes and materials”

GOST 12.1.007-76 “Sanitary and epidemiological norms and rules”

SNiP 3.01.01-85 “Quality control of welded joints”

GOST 380-94 “Rolled metal products”

NPB 244-97 “Fire Safety Requirements”

NBP 237-97 “Fire Safety Standards”

GOST "Sheet metal products"

GOST "Mortise locks"

GOST “Building structures. Fire doors and gates. Method. fire resistance tests"