Fire barrels: technical characteristics. Hand fire barrels and their purpose

29.07.202327.05.2017

- This is one of the main types of fire equipment. The fire barrel is a special device that is designed to form and further direct a jet of water and various fire extinguishing agents to the fire site. The fire nozzle consists of a body, a connecting fire head and a nozzle, which is responsible for the type of jet. The body of the fire barrel is made of aluminum, brass, sometimes plastic, and can be additionally equipped with a belt or braid on the body for ease of use of the barrel. The connecting head of the fire hose can be a coupling, sleeve or pin, it provides a quick and reliable connection of the fire hose with the fire hose. The fire nozzle is mounted at the end of the hose fire pressure line.

Additional materials:

Study questions:

Classification of fire hoses. Their purpose, device, characteristics, application and operation.
Familiarization with the rules of maintenance of fire nozzles.
Requirements of technical regulations for fire hoses.
Purpose, device and principle of operation of foam mixers, foam generators and air-foam barrels.

Types and types of fire nozzles

Various kinds and types are produced. Depending on what type of fire extinguishing agent will be used, fire nozzles are divided into water and water-foam, foam and air-foam, powder. Depending on whether it is possible to shut off the water supply or not, fire nozzles are divided into non-blocking and blocking ones. Fire nozzles are divided into manual and fire monitors according to their size and throughput.

Manual fire nozzles are available in the following types:

manual fire nozzle RS-50 and RS-70

Fire monitors are produced in the following types:

portable fire monitor
stationary fire monitor

The use of fire nozzles

Fire nozzles are included in the mandatory set of fire trucks, motor pumps and internal fire hydrants (PC) in residential and industrial buildings. Manual fire nozzles and portable fire monitors are mounted at the end of the hose fire pressure line, and stationary fire monitors are mounted on a support and connected directly to a fire hydrant or pumps on a fire engine. Fire nozzles, depending on the type of fire nozzle and the type of nozzles, can form a compact continuous jet and a spray jet.

Fire nozzles, which form a compact continuous jet of water and various fire extinguishing agents, are used to extinguish a fire at a long distance and to extinguish a fire in hard-to-reach places. Fire nozzles, which form a spray of water and various fire extinguishing agents, are used to extinguish a fire at close range and to extinguish a fire in large areas, as well as a water curtain to protect people from fire.

Also, when choosing fire nozzles, it is necessary to take into account the main technical characteristics of the fire nozzle, such as working pressure, water flow, spray jet supply range, compact jet supply range and nozzle outlet diameter. Our specialists will help you choose the most suitable type and type of fire nozzles for your facility.

Familiarization with the content rules

SAFETY INSTRUCTIONS

It is not allowed to operate the barrels at a working pressure higher than the maximum specified.
It is forbidden to use barrels near open power lines located within the radius of the jet.
When testing the barrel with a hydraulic pressure of 0.9 + 0.1 MPa (9 + 1 kgf / cm2), it is necessary to completely bleed the air from the internal cavity before the start of pressure increase.
When testing the barrel in order to determine the flow rate of water, the range of the jet and its quality, it is necessary to securely fix it in the grip of the stand before the water is released into the hose line. During testing, the front end of the barrel should be directed to the side where people are excluded.

1. It is forbidden to use barrels near open power lines located within the radius of action of a continuous jet.

2. It is forbidden to wear the shoulder strap of the barrel attached to the hose line when lifting and working at height. By the time the water is started, the barrel must be securely kept working.

Fire monitor barrel combined portable SLK-P20 (PLS-20P)

When working with the barrel, the following safety precautions must be observed: it is strictly forbidden to use the barrel to extinguish the fire of electrical installations, equipment, units, drives, and cables under voltage, as well as to use the barrel near open power lines located within the radius of action of the compact part of the jet.

Technical regulation requirements

1. The design of fire nozzles (manual and fire monitors) must provide:

1) formation of a continuous or sprayed jet of fire extinguishing agents (including air-mechanical low expansion foam) at the outlet of the nozzle;

2) uniform distribution of fire extinguishing agents over the cone of the spray jet;

3) stepless change in the type of jet from continuous to sprayed;

4) change in the consumption of fire extinguishing agents (for trunks of a universal type) without stopping their supply;

5) the strength of the barrel, the tightness of the joints and shut-off devices at operating pressure;

6) fixing the position of fire monitors at given angles in the vertical plane;

7) the possibility of manual and remote control of the mechanisms for turning fire monitors in the horizontal and vertical planes from a hydraulic or electric drive.

2. Construction foam generatorsshould provide:

1) formation of a flow of air-mechanical foam of medium and high expansion;

2) the strength of the barrel, the tightness of the joints and shut-off devices at operating pressure.

3. Foam mixers (with fixed and adjustable dosing) must provide:

1) obtaining an aqueous solution of a foaming agent with a given concentration to obtain foam of a certain ratio in air-foam barrels and foam generators.

Purpose, device and principle of operation of foam generators and air-foam barrels.

Air-foam barrels designed to produce air-mechanical foam of low expansion (up to 20) from an aqueous solution of a foaming agent and supply it to the fire.

Trunks fire manual SVPE and SVP have the same device, differ only in size, as well as an ejector device designed to suck the foam concentrate directly at the barrel from a knapsack tank or other container.

The trunk of the SVPE consists of:

From the body, on which, on the one hand, the connecting head 7 is fixed for connecting the fire hose, and on the other hand, the casing 5, in which the foaming solution is mixed with air and. foam is formed. There are three chambers in the barrel body: inlet 6, vacuum 3 and outlet 4. A nipple 2 with a diameter of 16 mm is located on the vacuum chamber for connecting hose 1 through which the foaming agent is sucked.

The principle of operation of GPS generators:

It is fed through the sleeves to the foam generator sprayer, in which the flow is crushed into separate drops. The conglomerate of droplets of the solution, when moving from the atomizer to the grid, sucks air from the external environment into the diffuser of the generator housing. A mixture of droplets of foaming solution and air falls on the mesh package. On the grids, deformed drops form a system of stretched films, which, closing in limited volumes, first form elementary (individual bubbles) and then bulk foam. The energy of newly arriving droplets and air pushes the mass of foam out of the foam generator.

During operation, special attention is paid to the condition of the grid package, protecting them from corrosion and mechanical damage.

Safety requirements when working with equipment for obtaining air-mechanical foam.

Only specialists who have been trained and instructed in working with foam extinguishing apparatuses are allowed to work on installations and maintenance. It is forbidden to use the devices near energized open transmission lines located within the radius of the compact jet.

Daily maintenance (when changing the guard).

To maintain constant technical serviceability, the following types of maintenance are carried out.

Daily maintenance (when changing the guard):

make an external inspection of the installations (grids, handles, nozzles);
check the cleanliness of the outlets, nozzles and screen cassette;
check the integrity of the mesh cassette;
check the condition of the fasteners and tighten if necessary;
in the presence of rotation units, check the free movement of the unit in the horizontal and vertical planes, if necessary, spray the rotation units through the grease nipples with grease.

Maintenance during work and at the end of work:

Control the pressure of the working fluid in the installation by the pressure gauge on the pump;
At the end of the work, rinse the installation from the foam concentrate and clean it from dirt;
Check the frequency of outlets, injectors and mesh cassettes;
Remove water from installations (especially in winter);
After returning to the unit, wipe the installations dry, eliminate the malfunctions found during operation.

Bibliography:

Technical regulation on fire safety requirements (as amended at the time of publication of the article).
Passport barrel manual RS-70, RSP-50,
Passport barrel fire monitor combined portable LSKP-20.
Educational and methodical manual: "Design of water and foam automatic fire extinguishing installations", under the general editorship of N.P. Kopylova, Moscow 2002.
NPB 59-97. Automatic water and foam fire extinguishing installations. Fire foam mixers and dispensers. Nomenclature of indicators. General technical requirements. Test methods.

The fire barrel is a special device that is designed to form and further direct a jet of water and various fire extinguishing agents to the fire site. The fire nozzle consists of a body, a connecting fire head and a nozzle, which is responsible for the type of jet. The body of the fire barrel is made of aluminum, brass, sometimes plastic, and can be additionally equipped with a belt or shoulder strap on the body for ease of use of the barrel. The connecting head of the fire hose can be coupling, sleeve or trunnion, it provides a quick and reliable connection of the fire hose with the fire hose. The fire barrel is mounted at the end of the hose fire pressure line.

Types and types of fire nozzles

Fire nozzles are produced in various types and types. Depending on what type of fire extinguishing agent will be used, fire barrels are divided into water and water-foam, foam and air-foam, powder. Depending on whether it is possible to shut off the water supply or not, fire nozzles are divided into non-blocking and blocking ones. Fire barrels are divided into manual and fire monitors according to their size and throughput.

Hand guns for firefighters are available in the following types:

hand barrel for binding RS-50.01 and RS-70.01
hand barrel RS-50 and RS-70
manual trunk overlapping RSP-50 and RSP-70
manual barrel combined RSK-50 and RSK-70
manual barrel air-foam SVPE and SVPR

Fire monitors are produced in the following types:

portable fire monitor
stationary fire monitor

The use of fire nozzles

Fire nozzles are included in the mandatory set of fire trucks, motor pumps and internal fire hydrants (PC) in residential and industrial buildings. Manual fire monitors and portable fire monitors are mounted at the end of the hose fire pressure line, and stationary fire monitors are mounted on a support and connected directly to a fire hydrant or pumps on a fire truck.

Fire barrels, depending on their type and type of nozzles, can form a compact continuous jet and a spray jet. Fire barrels, which form a compact continuous jet of water and various fire extinguishing agents, are used to extinguish a fire at a long distance and to extinguish a fire in hard-to-reach places. Fire nozzles, which form a spray of water and various fire extinguishing agents, are used to extinguish a fire at close range and to extinguish a fire in large areas, as well as a water curtain to protect people from fire.

Terms and Definitions:

Consumption is the volume of liquid flowing through the free section per unit time (l/s).

Jet- a mass of liquid bounded on all sides by a liquid or gaseous medium and moving under the action of pressure or gravity. Distinguish between solid (compact and fragmented) and sprayed jets.

Range The jet flight is maximum at a pressure in front of the barrel of at least 35 meters and a barrel inclination angle of 30 - 40 degrees.

sedative- a device designed to eliminate the rotation of the fluid flow around its axis by breaking the total flow cross section into several parts in order to supply water to the barrel nozzle in straight streams.

Jet reaction is the force directed in the opposite direction of the jet movement when it flows out of the nozzle.

Fire nozzles are designed to produce continuous or sprayed water, foam and powder jets. They are divided into manual and carriage.

Manual fire barrels are designed for the formation and direction of a continuous or sprayed jet of water, as well as (when installing a foam nozzle) jets of air-mechanical low expansion foam when extinguishing fires.

Distinguish trunks normal pressure(pressure in front of the barrel from 0.4 to 0.6 MPa (from 4 to 6 kgf / cm 2)) and trunks high pressure(pressure in front of the barrel from 2 to 3 MPa (from 20 to 30 kgf / cm 2)).

Trunks, depending on the presence (absence) of a blocking device, are divided into non-overlapping and overlapping.

Barrels of normal pressure, depending on the nominal diameter of the connecting head, are divided according to standard sizes into trunks with a nominal bore D at 50 and with conditional pass D at 70.

Depending on the functionality of the trunks are divided into:

a) forming only a continuous jet;

b) atomizers that form only a spray jet;

c) universal, forming both a continuous and sprayed jet;

d) with a protective curtain, additionally forming a water curtain to protect the receiver from thermal radiation;

e) combined, forming water and foam jets.

From combined barrel RSK-50 (Figure 16) are supplied as continuous (compact), sprayed, as well as combined jets. Trunks of this type are included only in fire trucks. When the handle position 4 cork tap 3 along the body axis 5 the liquid stream passes through the central opening of the centrifugal atomizer and then exits the nozzle in the form of a compact jet. When the valve handle is turned by 90 °, the central hole is blocked and the flow of fluid from the cavity 7 of the hollow plug of the valve through the holes 6 And 9 , enters the channels 2 And 8 . Through tangential channels 10 , the liquid enters the centrifugal atomizer and exits it in a swirling flow, which, under the action of centrifugal forces, when leaving the nozzle, is sprayed, forming a torch with an opening angle of 60 °. The RSKP-50 barrel differs from the RSK-50 barrel by the presence of a foam head, which allows you to supply foam of various expansion ratios (from 15 to 60) and a sprayed jet of water with a variable opening angle.

Fire barrels, similar to the weapons elements of the same name, are designed to supply substances that extinguish a fire to the source of ignition. Modern PTV models, in addition, have one more function - they form a jet, it can be compact, sprayed solid and other configurations. Manufacturers offer various devices in terms of design, dimensions, diameter, throughput, configuration, and principle of operation. All of them are in demand in practice, since the equipment and means today are diverse. It is advisable to make the choice of a specific model taking into account the conditions for the upcoming use, NPB 177-99 and the performance characteristics of fire nozzles.

These devices are used to equip hydrants, pumps, columns, cranes, special vehicles, and more. It is this device that provides the formation, supply and direction of a jet of substance to extinguish the fire. Some fire hose modifications can create water curtains or foam. The extinguishing area of manual fire nozzles and modifications with a carriage is determined by the type of device. The latest generation of models allows you to supply compounds or water as far as possible, and form the safety of fire professionals.

Classification

There are different types and types of fire nozzles:

Manual fire nozzles. They are used to extinguish fires with hand-held equipment. The depth of efficiency does not exceed 5 meters. Special nozzles are provided for working with various substances. The devices are used to eliminate the initial stages of a fire, but in large-scale emergencies they are ineffective.
Flight devices. This equipment is mainly used on specialized towers and special equipment for firefighters. Models differ in landing height, complete set of nozzles and the presence / absence of regulatory mechanisms. Combined modifications are highly effective, they create a spray jet, it is fed at an angle, which at the same time provides protection for the firefighter.

Important! The choice of this type of PTV, the procedure for operation, maintenance and other aspects are regulated by GOST R 51115-97, 9923-93 and 53331-2009.

Fire monitor marking

Fire monitors - types, characteristics can be found by marking:

B - working devices installed on car trailers. They are equipped with rotational mechanisms, which increases the range of their use.
C - stationary equipment, their purpose - a complete set of internal. In some cases, the standards allow them to be equipped with fire fighting equipment and towers.
D - models with the possibility of remote adjustment. All parameters can be remotely adjusted: switching on and off, the pressure of the fire extinguishing composition and the jet direction, the consumption of fire nozzles and other technical parameters.
P - universal mobile modification, optimal for pumping units.

Marking of manual models

From the labeling of hand-held devices, you can find out their purpose. Below is a breakdown of the most popular brands:

RS-50, 50P, 70. These devices belong to the removable category. They allow you to quickly lengthen the sleeve, change or maintain a continuous jet.
RS 50.01 or 70.01. These are non-removable modifications, they form a continuous water jet, the pressure of which cannot be regulated.
PSA, RSK, RSP. These are a series of portable devices that are used exclusively at an angle, which ensures the safety of firefighters. Are completed with various nozzles, including for giving of foamy substances.
RSSC 70. This type of sleeve device is versatile and highly efficient. It is connected to fire-fighting water pipelines at the facilities, allows you to adjust the parameters and configuration of the jet, and is used with any fire extinguishing compositions.

Purpose, device and principle of operation of manual fire nozzles and fire monitors

A typical PS design involves several working modules:

brass, aluminum or plastic case;
head for switching with a sleeve, distinguish between pin, sleeve and couplings;
nozzles that provide the shape of the jet;
fittings and couplings for attaching additional devices, such as foam generators or sprayers;
accessories such as a carrying strap.

According to the performance characteristics and the type of extinguishing agent used, manual fire nozzles and equipment with a gun carriage are classified:

models for creating a small but powerful jet;
shut-off modifications equipped with a shut-off crane;
universal models;
universal modifications that create a curtain;
combined equipment, for example ORT 50;
foam devices with low expansion;
foam models that provide a multiplicity above average are called foam generators - GSP-600.

Tactical and technical parameters of fire nozzles

A description of the capabilities of a particular hose is indicated in the instruction manual that comes with it. Therefore, before buying a product, it is advisable to get acquainted with the documentation. It is important to choose models that meet the conditions of the upcoming operation, and not focus only on price. The following are the main technical characteristics of these devices:

the maximum pressure for which the PS is designed, the parameter is indicated in atmospheres or in kgf / cm2;
the maximum volume of fire extinguishing agent that can be released per unit of time, while the operating pressure is maintained in the system, this indicator determines the water consumption of the device, it must correspond to the performance of pumping equipment;
operating range, calculated at nominal pressure and standard angle.

Note! When choosing, you should be guided by the type of head for commutation with a sleeve. It must correspond to it in terms of connecting parameters.

Application procedure

In order for a person using PS to maintain strength for a long time, but to act productively and purposefully, one should take the proper position of the body, there are several working postures:

Standing position. The supporting leg is in front, the weight of the equipment and the body is distributed evenly - on both supports. One hand holds the device from below with the palm of the hand and a finger from above. The second one holds the device on the connecting element.
Knee position. The man puts one foot on his knee. The second is set aside a little forward. One hand holds the PS at the side, the other supports it by the nozzle.
Lying position. The person lies down with an emphasis on the elbows. The barrel is held in the same way as the standard position.
Stair position. A man snaps a carabiner onto the structure. The sleeve is also installed on it using a fixture. The hands act similarly to the standing position.

On a note! To redirect the jet in the right direction, the body is rotated and the nozzle is turned there, the position of other parts of the body does not change. When working with shut-off shafts, the valve is opened by the hand holding the nozzle. The line itself must be held by a grenade launcher.

Technical regulations for this type of PTV:

the jet configuration is formed at the outlet of the nozzle;
fire extinguishing agents are sprayed evenly throughout the configuration;
the transformation of the jet configuration from normal to drip is carried out without transitions - in one movement;
the consumption of extinguishing agents is carried out without stopping its supply to the fire;
at nominal pressure, the device retains its performance characteristics and ensures the tightness of all elements;
barrels with a gun carriage are fixed at certain vertical angles;
changes in the direction of the substation are remotely provided using an electric or hydraulic drive.

The parameters of foam generators are somewhat different from the purpose, design and principle of operation of manual fire nozzles and columns:

the equipment creates foam with a multiplicity above average;
foam mixers create a foam solution of the desired concentration;
tightness and reliability are guaranteed in work.

Features and differences of air-foam models of barrels and foam generators

Air-foam modifications and foam generators are used to create foam. The first devices form compositions of low multiplicity, the second - above average.

SVPE and SVP. These modifications work with containers. The devices are formed from a housing divided into three chambers, one of them with a discharged space, a connecting head, a casing and a nipple. The fire extinguishing composition passes through the chambers, the discharged space forms foamy masses of it and air. From the device, they enter the hose, and then to the fire.
GPS. Consist of cassette, body, head and belt. A 6% composition is supplied to the spray device, where it is crushed into separate droplets. On the route to the grids, air is sucked into the substance. The foam itself is already formed in the cassette. The mass is pushed out of the generator by increasing its volume. It is important to protect the mesh cassette from rust and damage.

Safety in the operation of equipment for the formation of fire-extinguishing foam

Employees who have completed specialized courses and successfully passed the exam are allowed to work with PTV. They must have a solid knowledge of the content rules, the procedure for using and the technical regulations of the PS. In addition, employees are required to undergo regular training. The equipment must undergo daily maintenance to keep it working:

visual inspection of all elements of fire-technical equipment, especially working parts: nozzles, nets, moving parts and handles;
checking for the absence of contaminants, including the opening through which the formulations are fed;
check meshes for damage;
testing the reliability of connections, if problems are identified, they need to be adjusted;
checking the movements of moving parts in all planes, if a malfunction is detected, the use of lubricants;
when performing operations, attention should be paid to the pressure indicators on the measuring device;
upon completion of work, remove contaminants and compounds from the barrel;
remove liquid from the equipment, this is especially important in winter;
after use, eliminate the identified malfunctions and wipe the equipment dry.

All of the above applies not only to the barrel itself, but also to the nozzles. Fire nozzles are not allowed near overhead power lines. The distance must not be less than the range of the fire extinguishing agent. The line should be unwound straight, and its contour should not have creases and curvature. There should be no sharp objects near it. Fire extinguishing agents are fed into the hoses with a gradual increase in pressure, this stops the risk of ruptures. After completion of operation, the equipment should be completely dried, this is especially true for metal parts.

The fire hose is an integral element of a mobile or stationary fire extinguishing system. This device is also known by another name - a fire hose. Its effectiveness largely depends on the design, type and applications.

Design features

The main purpose of such a device as a fire barrel is the formation of a powerful jet of a substance for extinguishing fires (water or foam) and directing it towards the source of fire for the fastest and most effective localization of the fire.

In fact, the fire hose is the end of the pressure line and can be made of various materials. In the manufacture of barrels, aluminum or plastic is most often used. Fire hoses are equipped with fire trucks and motor pumps, as well as systems with which buildings and structures are equipped.

The described devices may have different designs and appearance, depending on the manufacturer, fire nozzles may differ in their functional features, technical characteristics and performance. Fire barrels are quite easy to use, and their shape allows you to securely hold and maneuver during operation.

A prerequisite for the safe use of fire nozzles of various types is the equipment of the fire main with a special grounding device.

Grounding will provide reliable protection for operating personnel in the event of a water or foam jet hitting conductive networks or when extinguishing a fire in electrical installations, substations, etc.

The grounding devices described here belong to the portable group of equipment and accessories. They have a simple algorithm for installation and preparation before extinguishing a fire.

Device types

The classification of hoses is quite diverse. Any type or variety of fire nozzle allows you to ensure maximum efficiency in extinguishing fires of various types and complexity. The main classification of fire nozzles provides for two types: hand-held hoses and fire monitors.

The most popular and most commonly used are manual modifications of the described elements of the fire extinguishing system. They are quite agile and efficient. Their use allows you to quickly respond to changing situations when the fire area expands, as well as move the firefighter in any direction if prompt maneuvering is necessary.

The fire monitor type of pumping barrels is used in case of insufficient fire extinguishing efficiency with hand-held hoses and the existing danger when working with them. These elements of the pressure line differ in their diameter. The production of fire nozzles provides for their use with fire hoses of 51 mm and 66 mm.

Hand fire nozzles

Manual fire nozzles are a simple design of the main body, a head for connecting to the highway and a belt for carrying it. Most models of manual hoses are provided with shut-off valves for adjusting the water supply, although there are models without such fittings.

In addition, the described devices are equipped with additional accessories such as special nozzles. These elements allow you to form a jet of water or foam, depending on the situation.

Nozzles allow you to form a direct impact jet for direct impact on the fire. Nozzles are also used to disperse the total flow of water from the hose to treat a larger fire area.

It is not uncommon to use nozzles for protection against thermal radiation when extinguishing fires. Such accessories provide reliable protection, forming a dense, so-called water curtain.

Classifying manual hoses into certain groups, it is worth highlighting the following, namely:

hoses that provide a compact jet. These include the RS-50 and 70 models;
hoses of universal type. This subgroup can provide both a continuous jet supply and a diffuse jet. Models RS-A and B, KR / B, RSK-70 and others are considered popular representatives of this subgroup;
trunks, allowing to provide a water curtain of various formats (RSKZ-50 and 70);
trunks of the combined type. Such hoses provide foam supply using special nozzles (for example, ORT-50);
hoses for supplying low-expansion foam solution (SV-P, SVPe).

Particular attention should be paid to the difference between low and high expansion foam barrels. High-expansion foam generators do not belong to the category of hoses due to a different design and features of use.

The characteristics of the trunks, as noted, depend on the specific model. For example, we can take one of the most popular models of aluminum hoses RS-50.

The specified working pressure for this type of shafts is from 4 to 6 kgf / sq.cm. In this case, the water flow is not less than 3.6 liters per second at a nominal pressure at the base of the hose of 4 kgf / sq. cm. The total length of the working dense jet can be up to 28 meters.

The diameter of the nozzles, which is equal to the outlet, is 13 mm, and the total weight of such a fire barrel is 700 grams. The indicator of the total reactive force is 10.8 kg / s.

The combined model of the RSK-50 fire hose is an element of standard fire trucks. The main locking device of this model is quite effective and reliable, and it is tested under a pressurized water pressure of 0.6 MPa.

This model has a special red braid in its design, which ensures a secure hold of the hose in the hands.

When operating in spray mode, the water flow rate is at least 2 liters per second. The length of the sprayed jet is about 30 meters. A continuous jet without a spray nozzle is 11 meters.

The working diameter of the outlet of the part for the location of the nozzles is 12 mm. The total length of this hose model is 36 cm and its weight is 1.9 kg.

Internal fire hydrants are equipped with manual trunks of the RS-50/01 model. They provide for permanent fastening on the highway and provide a continuous jet of water when extinguishing fires.

These barrels are intended to be used at operating pressures of 4 to 6 kgf/sq.cm. At the same time, the nominal water consumption is at least 3.6 liters per second of operation.

The distance at which water is delivered by a continuous jet is 28 meters. The nominal diameter of the nozzle at the inlet is 50 mm, while the outlet is 13 mm. The total mass of the hose is 270 gr. Such a small indicator of the weight of the part is ensured by the fact that the body of the model is made of aluminum.

On the body of the high-pressure fire nozzle, sections with a corrugated surface or covered with special materials can be provided, which provide a reliable hold of the hose in the hands, preventing slipping during operation.

The most demanded and popular modifications of manual fire nozzles are models such as RS-50, RSK-50, RS-B and others.

Fire monitors

Fire monitors are used for rather complex fires, for which manual trunks are ineffective for extinguishing. The carriage type of these devices is also used in fighting fire in a limited space when it is necessary to supply a large amount of water.

In addition, the described devices are successfully used in the cooling of structures or structures of various types and purposes, neutralization and deposition of vapors of toxic fumes, gases, etc.

Once connected to the mains, such devices require minimal maintenance by the fire brigade. Fire monitors, depending on the design and installation features, are divided into the following subspecies, namely:

stationary carriage structures. This type can be placed both on truck platforms and on specialized sites or structures;
transportable on a wheeled structure. This type is an independent trailer for fire trucks or trucks;
portable structures. This type is the most mobile and versatile among fire monitors. The device can be placed in a special compartment of a firefighter or other specialized vehicle.

Fire monitors are designed to supply both water and foam solution at regulated distances, depending on the model of the device.

The most popular models of devices for stationary use are rightfully considered to be LS-S60 and 40. They, according to the principle of manual devices, are designed for directed supply of water or foam when extinguishing fires that are complex in nature. The required working pressure for both models must be at least 0.8 MPa.

The numerical designation in the name of the models indicates the nominal flow rate of water during normal operation. So LS-S60 consumes 60 liters of water, and the "fortieth" model, respectively - 40 liters. At the same time, the declared range of the water jet is 70 meters for both models and 40 meters for the foam substance.