Purpose and use of carbon dioxide fire extinguishers. Carbon dioxide fire extinguishers - design and technical characteristics Wall-mounted fire extinguisher OU 5

A fire extinguisher is a device for extinguishing fires with a special substance. This is one of the best primary means designed to extinguish a fire in almost any place: in a car, in a warehouse, in a house, etc.

According to safety regulations, it is mandatory in public and private institutions.

At power stations where the voltage is not higher than 10 kV or on electrified railway transport, carbon dioxide fire extinguishers are usually installed - abbreviated as OU.

At all, based on the principle of impact on the source various extinguishing substances, fire extinguishers are distinguished:

• powder;
• foam (chemical, air-foam, air-emulsion);
• aquatic;
• gas (carbon dioxide).

Purpose of the op-amp

Carbon dioxide fire extinguishers are used for... extinguishing burning substances that are unable to burn in the absence of oxygen. Such fire extinguishers are ideally used in places where it is necessary to preserve valuable equipment:

• at cultural sites (galleries, archives, museums);
• in urban, sea and railway transport;
• in industrial plants;
• in private homes;
• in dachas;
• in apartments and office premises.

Carbon dioxide fire extinguishers are also used in warehouses, gas stations, and paint shops. This is due to the fact that gas does not harm expensive property, despite the fact that it copes better with eliminating the fire of gaseous or liquid substances.

Operating principle

Liquefied carbon dioxide, which is in a cylinder under pressure, when displaced, turns into a solid state (snow-like), cooling the burning substance. Carbon dioxide increased in volume up to 500 times has a temperature of -72°C, displaces oxygen from the fire zone, thereby stopping the combustion reaction.

When using carbon dioxide fire extinguishers the extinguishing agent evaporates without a trace, does not leave contamination, does not cause damage in the form of damage to equipment in the room.

Types of carbon dioxide fire extinguishers

Fire extinguishers are classified by body volume to:

• portable from 5 kg. up to 20 kg. (small-displacement - up to 10 liters of CO2 in a cylinder) - have a minimum of operational features and can be used by one person;
• mobile and stationary from 35 kg. (from 10 liters of CO2 charge) – heavy, with a special mobile device. They can be used by two people only through joint efforts and who have undergone special training.

Portable carbon dioxide fire extinguishers are used to eliminate fires in places with the presence of office equipment and electrical appliances.

Mobile cylinders with carbon dioxide consist of twin fire extinguishers, have tubes and a bell.

Block 50% from the beginning of the article

Mobile OUs are used in large industrial enterprises and workshops, in maritime and railway transport.

Specifications

Abbreviation for carbon dioxide fire extinguishers accompanied by a number indicating the mass of the fire extinguishing agent.

1B - combustion designation 10 l. gasoline in a 3 cm layer in a round baking tray.

Portable op amps

Type	OU1	OU2	OU3	OU4	OU5	OU6	OU7
Cylinder capacity, l.	1, 34-1,5	2,68-2,9	4,3	5,36	7,2	8	10
CO2 release time, sec.	6-8	6-10	8	8	8	10	10
Charge mass, kg.	1	2	3	4	5	6	7
Fire extinguishing capacity, m2	13V	21B	34V	34V	34V	55V	55V
Jet length, m.	2	2	3	3	3	3	3
Cylinder dimensions, mm.	350x 170x 110	250x 170x 110	515x 175x 140	490x 220x 240	940x 230x 520	730x 230x 520	1200x 370x 470
Working pressure, MPa	5,88	5,88	5,88	5,88	5,88	5,88	5,88
Gross weight, kg.	4,5	8	11	13	17	18,5	20
Operating temperature, t° WITH	-40 to +50	-40 to +50	-40 to +50	-40 to +50	-40 to +50	-40 to +50	-40 to +50

Mobile op-amps

Type	OU10	OU15	OU20	OU25	OU30	OU55
Cylinder capacity, l.	13,4	20,01	26,8	40	2*25	2*40
CO2 release time, sec.	15	15	15	15	20-25	25-30
Charge mass, kg.	9,5-10	14,25-15	19-20	24,75-25	34,5-38,5	52,2
Fire extinguishing capacity, m2	55V	70V	89B	89B	114V	144V
Jet length, m.	4	4	4	4	4-6	4-6
Cylinder dimensions, mm.	1200x 370x 470	200x 410x 370	200x 410x 370	1550x 700x 400	1550x 700x 400	800x 760x 1700
Working pressure, MPa	5,88	5,88	5,88	5,88	5,88	5,88
Gross weight, kg.	35-50	50	70	115	220	220-230
Operating temperature, t° WITH	-40 to +50	-40 to +50	-40 to +50	-40 to +50	-40 to +50	-40 to +50

Maintenance

Fire extinguishers are required recharge at least once every five years at special charging stations, in specialized organizations. A used fire extinguisher can be refilled, but the suitability for use of such a product is reduced to three years. Gas fire extinguishers should be recharged with extreme caution; it is safer to purchase a new cylinder of extinguishing agent.

Warranty service life of fire extinguishers with CO2 is 2 years from the date of manufacture. The mass of the fire extinguishing agent should be checked at least once every 2 years. The OS passport or its label contains an indication of the mass of carbon dioxide. When it is added to the mass of the cylinder, the total mass of the OU is calculated.

1. “Carbon dioxide fire extinguisher OU-5 (z) (B, C, E)”- works on the principle of excluding oxygen in the combustion area.
2. Due to the fact that after use the carbon dioxide fire extinguisher “OU-5” does not leave traces, it is widely used at facilities where there is a risk of short circuits, for example, at substations, industrial enterprises, industrial warehouses.
3. Carbon dioxide fire extinguishers do an excellent job of igniting flammable gases, paints, oils, and fuel, which is why gas stations are equipped with them.
4. Using a carbon dioxide fire extinguisher "OU-5", you do not need to worry about dust or clogging of the room; after drying, no traces remain.
5. “Carbon dioxide fire extinguisher OU-5 (z) (B, C, E)” are ideal for libraries, hospitals, schools. The storage range of a carbon dioxide fire extinguisher is from -40C to +50C, which is perfect for our latitudes, and the service life of the fire extinguisher is 10 years.

Instructions

1. “Carbon dioxide fire extinguisher OU-5 (z) (B, C, E)” copes with fire thanks to the displacement of the carbon dioxide charge under the influence of its own excess pressure, which is created in the fire extinguisher.
2. Carbon dioxide is in a cylinder under a pressure of 5.7 MPa (58 kgf/cm2) at an ambient temperature of 20°C.
3. The maximum operating pressure in the fire extinguisher cylinder at a temperature of +50°C should not exceed 15 MPa (150 kgf/cm2).
4. When the shut-off and release device (ZPU) is opened, a charge of carbon dioxide flows through the siphon tube to the socket. In this case, carbon dioxide transitions from a liquefied state to a solid (snow-like) state, accompanied by a sharp drop in temperature to minus 70°C.
5. The fire extinguishing effect of carbon dioxide is based on cooling the combustion zone and diluting the flammable vapor-gas environment with an inert (non-flammable) substance to concentrations at which the combustion reaction stops.
6. To put the OU-5 into action, you need to pull the pin.
7. Point the nozzle of the fire extinguisher at the source of the fire from a distance of 3 meters on the windward side.
8. Using your hand, press the handle of the locking device (ZPU), carbon dioxide is released under high pressure (fire extinguishing agent (FFA)).
9. When using the OU-5, you must hold the fire extinguisher nozzle by the plastic part, otherwise there is a risk of frostbite.

Specifications

Scope of application

“Carbon dioxide fire extinguisher OU-5 (z) (B, C, E)” is used to extinguish flammable substances of the following class:

1. B
   • combustion of liquid substances insoluble in water (for example, gasoline, ether, petroleum products). Also, combustion of liquefiable solids (eg paraffin, stearin);
   • combustion of liquid substances soluble in water (for example, alcohol, glycerin).
2. C
   • combustion of gaseous substances, household gas, propane and others.
3. E
   • burning of electrical installations and live electrical wiring.

How to buy a “carbon dioxide fire extinguisher OU-5” and can the price be lower?

Price 1657.00 rub. The website is presented for retail sale. However, the company "PozhZashchita.RU" works individually with wholesale buyers, providing the best and competitive prices for product items. This becomes possible thanks to direct cooperation with product manufacturers without intermediaries.

Regarding the purchase of this product:

• you can buy “Carbon dioxide fire extinguisher OU-5” directly on this page, indicating all additional options;
• use the easiest way, the quick order form;
• contact our manager directly, who will give you all the comprehensive information on the product, as well as provide professional advice on issues of interest.

How to receive the ordered product or delivery methods

Our company has representative offices in Krasnodar, Rostov-on-Don, St. Petersburg, Sevastopol and Simferopol. This means that you can buy or receive your purchase from a pickup point. For other regions of Russia, we offer delivery with various types of carrying capacity and vehicle body volume, urgent delivery or door-to-door delivery, cargo insurance and much more. We provide all details on cost and other transportation issues when registering the shipment together with the carrier, since the number of products ordered may vary significantly.

Availability and consultation

Such a product as "Carbon dioxide fire extinguisher OU-5" in stock almost always. For a wholesale order, the required quantity will be delivered directly from the manufacturer’s warehouses, providing the customer with everything they need. Don't forget that you can get the best price on the market. If you are in doubt about your choice, be sure to look at related items from section "Carbon dioxide" on the website. Also, do not hesitate to get all the detailed information about the “CO2 fire extinguisher OU-5” from our specialists.

ABOUT oppressor at Hydrochloric acid OU-5 uses carbon dioxide to extinguish the flame. It cools the fire area and fills the air with inert substances that prevent the flame from flaring up again. Carbon dioxide does not come into direct contact with the wires, so it does not create a short circuit. Suitable for extinguishing fire or smoking equipment.

Advantages of the OU-5 fire extinguisher

• High efficiency.
• Leaves no traces of extinguishing.
• Suitable for extinguishing equipment.
• Safety for people.
• Compact sizes.

Rules of application

Please note that this model is not intended for extinguishing substances that can burn without oxygen. This fire fighting equipment is used to prevent fires in transport, residential and industrial premises. Due to the fact that it is small, you can easily find a place for it even in a small room: it can be mounted on special hooks on the wall.

It is important not to place the equipment near heating devices and to recharge every 5 years. Weigh the fire extinguisher once a year: if the weight has changed, an extraordinary recharge is needed

Characteristics of carbon dioxide fire extinguisher

• Case capacity - 6.7 l
• Charge weight - 5-0.25 kg/l
• Duration of OTV supply - 8 seconds
• Jet length - 3 m
• Fire extinguishing ability by class - 55B
• Weight - 14.9 kg
• Overall dimensions (diameter, height) - 135×700
• Fire extinguishing agent - Carbon dioxide
• Operating temperature - from -40 to +50
• Service life - 5 years before recharging
• Recharge frequency (with annual weight control) - once every 5 years
• The frequency of re-examination of the cylinder is after 10 years.

Purpose of the product

Carbon dioxide, portable fire extinguishers OU-5 are intended for extinguishing various substances, combustion of which cannot occur without access to oxygen, fires on electrified railway and urban transport, electrical installations under voltage up to 10,000 V, fires in museums, art galleries and archives, a wide range of distribution in office premises in the presence of office equipment, as well as in the residential sector. The main advantage of carbon dioxide fire extinguishers is that carbon dioxide does not damage the object being extinguished and leaves no traces.

Carbon dioxide fire extinguishers OU-5 are used to extinguish the following substances:

• flammable liquids (B);
• flammable gases (C);
• electrical equipment (E) under voltage up to 10,000 V.

Carbon dioxide fire extinguishers OU-5 not used for extinguishing:

• solid flammable substances (A);
• substances whose combustion can occur without access to oxygen (D), (aluminum, magnesium and their alloys, sodium, potassium);
• electrical installations with voltages above 10,000 V.

Design and principle of operation of a fire extinguisher

Carbon dioxide fire extinguisher OU-5 is a high-pressure injection fire extinguisher with a charge of liquid carbon dioxide (according to GOST 8050-85) under saturated vapor pressure. The capacity of the OU-5 case is 6.7 liters, the charge weight is 5 kg. It is designed to extinguish a fire within 8 seconds with a jet length of 3 m.

The operation of the OU-5 fire extinguisher is based on the displacement of a charge of carbon dioxide under the influence of its own excess pressure, which is created when the fire extinguisher is filled. Carbon dioxide is in a cylinder under a pressure of 5.7 MPa (60 kgf/cm2) at an ambient temperature of +20°C. The maximum operating pressure in the cylinder at a temperature of +50°C should not exceed 14.7 MPa (150 kgf/cm2). The fire extinguishing effect of carbon dioxide is based on cooling the combustion zone and diluting the flammable vapor-air environment with an inert (non-flammable) substance to concentrations at which the combustion reaction stops.

Instructions for use, maintenance and safety precautions

The OU-5 fire extinguisher must be placed in easily accessible and visible places where it is not exposed to precipitation, direct sunlight or the fire extinguisher is heated above 50 °C.

Operating a fire extinguisher without a receipt and seal from the manufacturer or the organization that recharged the fire extinguisher is not allowed.

When extinguishing live electrical equipment, it is not allowed to bring the socket or body of the fire extinguisher closer than 2 meters to open live parts with a voltage of 10 kV.

Care must be taken when releasing the carbon dioxide charge from the bell because... the surface temperature of the socket with the hose is reduced to -70 °C.

After use, the fire extinguisher should be sent for recharging as soon as possible, replacing it with a backup fire extinguisher of the same type.

The fire extinguisher must be weighed annually upon initial installation and at least once a year. The permissible amount of carbon dioxide charge leakage is no more than 50 g per year.

Recharging and maintenance of the fire extinguisher must be carried out at least once every 5 years by specialized organizations licensed for this type of activity, using a special charging station.

Re-examine the cylinder after 10 years.

Warranty

The manufacturer guarantees the compliance of the OU-5 fire extinguisher with the requirements of TU 4854-003-61192961-2010 GOST R 51057-2001, provided that the consumer observes the rules for operating and storing the fire extinguisher, set out in the technical specifications and this manual.

The warranty period for the OU-5 fire extinguisher is 12 months from the date of sale, but not more than 18 months from the date of manufacture.

The manufacturer is not responsible if the trading organization or the owner of the fire extinguisher does not comply with the rules for storing, transporting and operating the fire extinguisher, the loss of the passport or the absence of the manufacturer's seal on the locking and starting device of the fire extinguisher, when carrying out recharging and maintenance of fire extinguishers in organizations not having a license to carry out these works.

When using carbon dioxide fire extinguishers OU-5, the following precautions should be observed:

• when extinguishing electrical installations, the distance to the socket must be at least 1 m;
• avoid contact of the fire extinguisher nozzle with exposed parts of the body (-70°C);
• After using a carbon dioxide fire extinguisher, thoroughly ventilate the room.

Equipment

• fire extinguisher - 1 pc.,
• hose with socket assembly (length 0.4 m) - 1 pc.,
• instruction manual combined with a certificate for the fire extinguisher - 1 pc.

Additional information

If a fire occurs, you must pull out the pin, point the bell towards the fire, press the locking device lever and begin to extinguish the fire.

Complies with GOST R 51057-2001 " Fire equipment. Fire extinguishers are portable. General technical requirements. Test methods"

Description:

One of the most common fire extinguishers. Excellent as a car fire extinguisher for trucks, buses and special equipment, for those who want more serious protection than the minimum permissible OU-2. Also, the fire extinguisher is installed in rooms where the use of powder fire extinguishers is not desirable or may damage equipment - in electrical switchboard server rooms and other rooms.

Carbon dioxide fire extinguishers not intended for extinguishing solid flammable substances !!! Materials such as wood, paper, fabrics, etc. After using a carbon dioxide fire extinguisher, they will continue to smolder and may catch fire again!

It is preferable to equip electrical panels, servers, and fire protection panels with carbon dioxide fire extinguishers in paint shops, gas stations and on the territory of industrial enterprises, as well as in museums, art galleries and archives, due to the fact that a carbon dioxide fire extinguisher does not leave powder behind (as is the case with a powder fire extinguisher) .

Designed for use:

• on passenger vehicles - 1 piece, on cargo and passenger vehicles - 2 pieces,
• for extinguishing fires in premises of category B, public premises, fires of class E (electrical equipment) up to 10,000 V, at the rate of 1 fire extinguisher per 200 m 2 ;
• for extinguishing electrical installations with voltage up to 10,000 V;
• for extinguishing computer equipment;
• extinguishing liquid and gaseous flammable substances

Specifications:

• body capacity - 6.7 l;
• CO 2 charge mass - 5 kg;
• fire extinguishing ability - 55B;
• operating temperature - from -40 to +50 °C;
• OTV jet length - 3 m;
• working pressure - 5.88 MPa;
• duration of OTV supply - 8 seconds;
• fire extinguisher weight (gross) - no more than 16 kg;
• service life - 10 years.

Maintenance:

During the operation of the fire extinguisher, it is necessary to carry out its timely maintenance at specialized stations, in the amount of:

• re-examination (checking parameters) - annually;
• recharge - once every five years, after use, when pressure drops;
• fire extinguishers installed on vehicles must be recharged at least once every 24 months;
• fire extinguishers installed on vehicles outside the cab or interior and exposed to adverse climatic and physical factors must be recharged at least once every 12 months.

Accommodation:

On vehicles, fire extinguishers must be located in the cab, in close proximity to the driver or in a place easily accessible to him. It is prohibited to store fire extinguishers inplaces that are difficult to access (trunk, body, etc.).

In buildings, a fire extinguisher is located near the places where a fire is most likely to occur, along escape routes, and also near the exit from the premises. in such a way that it is protected from direct sunlight, heat flows, mechanical influences and other adverse factors. It is necessary to ensuregood visibility and easy accessibility in case of fire.

Typically, the fire extinguisher is hung on a bracket, and the top of the fire extinguisher should be located at a height of no more than 1.5 m from the floor. Installation is also possiblein a fire cabinet or on a special stand.

Usage:

To use a fire extinguisher, you need to follow simple steps:

1. Pull out the pin by the ring, which prevents the fire extinguisher from accidentally going off, which will break the safety seal;
2. Point the bell at the fire site and press the lever.
3. Attention! When carbon dioxide escapes, the fire extinguisher pipe cools sharply.

Extinguishing techniques:

Passport: