A fire extinguisher is a device for extinguishing fires with a special substance. It is one of the best first aids for extinguishing a fire almost anywhere: in a car, in a warehouse, in a house, etc.

According to safety precautions, mandatory in public and private institutions.

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

At all, according to the principle of impact on the focus various extinguishing agents, fire extinguishers are distinguished:

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

Purpose of OS

Carbon dioxide fire extinguishers are used for t suppression of burning substances that cannot burn in the absence of oxygen. Such means of extinguishing fires are ideally used in places where it is necessary to save materially valuable equipment:

• at cultural sites (in galleries, archives, museums);
• in urban, sea and rail transport;
• in industrial plants;
• in private houses;
• in dachas;
• in apartments and offices.

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

Operating principle

Liquefied carbon dioxide, which is in a cylinder under pressure, when displaced, passes into a solid state (snow-like), cools the burning substance. Increased in volume up to 500 times, carbon dioxide has a temperature of -72 ° C, displaces oxygen from the ignition zone thus stopping the combustion reaction.

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

Types of carbon dioxide fire extinguishers

Fire extinguishers are classified by body volume on the:

• portable from 5 kg. up to 20 kg. (small-capacity - up to 10 liters of CO2 in a cylinder) - have a minimum of operational features, 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 by joint efforts, who have undergone special training.

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

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

Block in 50% from the beginning of the article article

Mobile OS are used at large industrial enterprises and workshops, in sea and railway transport.

Specifications

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

1B - designation of burning 10 l. 3 cm layer of gasoline in a round baking sheet.

Portable OS

Mobile OS

Maintenance

Fire extinguishers needed recharge at least once every five years at special charging stations, in specialized organizations. A used fire extinguisher can be refilled, however, the suitability for use of such an agent is reduced to three years. Special care should be taken when recharging gas fire extinguishers, it is safer to purchase a new bottle of fire extinguishing agent.

Warranty period for CO2 fire extinguishers is 2 years from the date of manufacture. At least once every 2 years, the mass of the extinguishing agent should be checked. 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 OS is calculated.

Mobile carbon dioxide fire extinguisher OU-10 is designed to extinguish various substances, the combustion of which cannot occur without air access; can be used to extinguish electrical installations with a voltage of not more than 1000 V. The design of the fire extinguisher allows it to be transported to the place of fire and repeatedly resume the supply of the fire extinguishing agent charge to the combustion source using a shut-off and trigger device on the hose.

Declaration and Certificate of Conformity Customs Union Certificate of Conformity GOST

Each carbon dioxide fire extinguisher is supplied with a numbered passport.

The weight of a cylinder with a locking device without an extinguishing agent is applied to the locking device of a carbon dioxide fire extinguisher. The locking device is sealed with a seal. The seal has an individual seal number, a date in the month-year format (PPR, p. 477 with Amendments of 17.02.2014).
On the label of the DU of the fire extinguisher, in addition to the data listed in GOST, the number of the fire extinguisher is applied. The date of issue is marked at the bottom of the label (manual marking is allowed).

Extinguishing is carried out in the vertical position of the fire extinguisher. After the lever of the head of the locking and starting device is released from the seal (checks), the socket is directed to the fire and the start lever on the cylinder head is pressed.

Specifications:

• Fire extinguishing agent carbon dioxide, GOST 8050-85
• Capacity, l 10
• Fire extinguishing capacity (according to class B), not less than, M 2 1.8
• Weight of fire extinguishing agent charge, kg 7.0
• Fire extinguishing capacity 55 V
• Maximum working pressure, MPa 15
• Duration of fire extinguishing agent supply, s 15
• The length of the jet of fire extinguishing agent, m 3.0
• Operating temperature range, ° C - 40 ... +50
• Gross weight, kg 30.0
• Overall dimensions, mm 1200 x 370
• Average service life, 10 years.

Use of a mobile carbon dioxide fire extinguisher OU-10:

Bring a mobile carbon dioxide fire extinguisher OU-10 to the fire, taking into account the distance that is safe from thermal effects. Pull out the pin, point the socket at the source of fire and press the handle of the locking device valve. In cases of fire in the open air, extinguish only from the windward side. Be careful when releasing the charge from the bell, because its surface temperature drops to minus 60-70 0 C. In addition, electrostatic voltage can be concentrated on the bell surface, which can break through the dielectric glove. When extinguishing electrical installations under voltage, it is not allowed to bring the socket closer than 1 meter to the electrical installation and the flame.

Rules for the operation of a mobile carbon dioxide fire extinguisher OU-10:

The warranty period of operation of the OU-10 mobile carbon dioxide fire extinguisher is 24 months from the date of acceptance by the Quality Control Department, which includes the shelf life. Mobile carbon dioxide fire extinguisher OU-10 must not be installed near heating devices, it must be protected from sunlight. The OU-10 mobile carbon dioxide fire extinguisher is subject to periodic checks once every six months for tightness and weight compliance with passport data. If the weight of the cylinder is lower than specified in the technical specifications or the period for the examination of the cylinder has expired, it is subject to verification and recharging at a specialized reloading and maintenance station.

RUB 4,554

Chassis on OU-10

Holder for OU-10

Hose with socket for OU-10

Carbon dioxide fire extinguishers of all volumes (from 1 to 80 liters) and fire extinguishing classes (A, B, C and E) from Russian manufacturing plants are always available. Each fire extinguisher is accompanied by the necessary documentation.

This product is often asked:

Stands for fire extinguishers metal floor are designed to accommodate portable fire extinguishers and can be located at production facilities and in public buildings. The supports are designed for operation indoors at temperatures from +5 to +45 0 C and relative humidity up to 95%. Service life - not less than 10 years.

The need to install fire safety signs is regulated by fire safety rules that are aimed at ensuring an unambiguous understanding of certain requirements related to safety, saving life and health of people, reducing material damage, without the use of words or with their minimum number.

Passport

1.1 Portable CO2 fire extinguishers OU-10, OU-20, OU-40, OU-80 are designed to equip fire departments, protect industrial and civil facilities as primary means of extinguishing fires of liquid combustible materials (class B), gaseous substances (class C) ) and electrical equipment under voltage up to 1000 V, fires in museums, art galleries, archives.
1.2 The fire extinguisher is produced in the climatic version “U” (temperate climate), placement category 2 in accordance with GOST 15150
1.3 The operating temperature range of fire extinguishers is from - 200C to + 500C at relative air humidity up to 95%.
1.4 The fire extinguisher is a reusable product.

WARRANTY

7.1 The manufacturer guarantees the compliance of the fire extinguisher with the technical characteristics given in Table 1, subject to the consumer's
conditions of operation, transportation and storage.
7.2 Warranty period of operation of a charged fire extinguisher is 12 months from the date of sale through a retail network (when delivered directly from the manufacturer - from the date of shipment), but not more than 18 months from the date of manufacture.
7.3 The manufacturer is not responsible for:
- non-compliance with the rules of operation by the owners;
- negligent storage and transportation of fire extinguishers by owners and trade organizations;
- loss of a passport;
- the absence in the “certificate of acceptance” section of the store’s mark of sale
- violation of the manufacturer's seal.
NOTE:
The manufacturer reserves the right to change the design of carbon dioxide fire extinguishers of various sizes according to TU 4854-002-13309816-04 in order to improve their technical characteristics and performance properties (parameters).

Specifications OU-10, OU-20, OU-40, OU-80

Table 1.

Description Yarpozhinvest OU-10

Carbon dioxide fire extinguishers Yarpozhinvest OU-10 are designed to extinguish various substances that cannot burn without oxygen, fires on electrified railway and urban transport, electrical installations under voltage up to 10,000 V, fires in museums, art galleries and archives, wide distribution in office premises in the presence of office equipment, as well as in the residential sector. The main advantage of Yarpozhinvest OU-10 carbon dioxide fire extinguishers is that carbon dioxide does not damage the extinguishing object and does not leave marks.

Yarpozhinvest OU-10 carbon dioxide fire extinguishers are used to extinguish the following substances:

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

Carbon dioxide fire extinguishers Yarpozhinvest OU-10 are not used to extinguish:

• solid combustible 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.

Features Yarpozhinvest OU-10

Carbon dioxide fire extinguishers are designed to extinguish various substances, the combustion of which cannot occur without oxygen, fires on electrified railway and urban transport, electrical installations under voltage up to 10,000 V, fires in museums, art galleries and archives, widespread use in office premises with availability 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 extinguishing object and does not leave marks.

Carbon dioxide fire extinguishers are used to extinguish the following substances:
- flammable liquids (B);
- combustible gases (C);
- electrical equipment (E) energized up to 10,000 V.

Carbon dioxide fire extinguishers are NOT SUITABLE for extinguishing:
- solid combustible substances (A);
- substances that can burn without access to oxygen (D), (aluminum, magnesium and their alloys, sodium, potassium);
- electrical installations with voltages above 10,000 V.

Peculiarities

A carbon dioxide fire extinguisher is a high-pressure injection fire extinguisher with a charge of liquid carbon dioxide (according to GOST 8050-85), under saturated vapor pressure.

The operation of the fire extinguisher is based on the displacement of the carbon dioxide charge under the action 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 +20C. The maximum working pressure in the cylinder at a temperature of +50C 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 combustible vapor-air medium with an inert (non-combustible) substance to concentrations at which the combustion reaction stops.

With annual control of the mass of the charge, the service life of the UO before recharging is 5 years. Recharging and maintenance is carried out at least once every 5 years. Charging, recharging, inspection and maintenance of the fire extinguisher should be carried out only at service stations that have the appropriate license.

Re-examination of a cylinder of a carbon dioxide fire extinguisher, as a pressure vessel, is to be carried out after 10 years.

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

When using carbon dioxide fire extinguishers, 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 socket with open parts of the body (-70C);
- after using a carbon dioxide fire extinguisher, thoroughly ventilate the room.

Equipment

fire extinguisher - 1 pc.,
hose with socket assembly (length 1 m) - 1 pc.,
trolley - 1 pc.
operation manual combined with a passport for a fire extinguisher - 1 pc.