Water manual fire nozzles. Short spur RTP
VNIIPO of the Ministry of Internal Affairs of Russia has developed manual fire nozzles RSP-50, RSK-50, RSP-70, RSKZ-70, devoid of these shortcomings.
They form continuous and atomized jets with a variable spray jet angle (RSK-50) and a water protective curtain (RSKZ-70), have a ball-type blocking device.
Designed for a working pressure of 0.4-0.6 MPa, they provide:
water consumption with continuous jet:
- 2.7 l/s (RSP-50, RSK-50),
- 7.4 l/s (RSP-70, RSKZ-70),
spray water consumption:
- 2.0 l/s (RSP-50, RSK-50),
- 7.0 l/s (RSP-70, RSKZ-70) and protective curtain 2.3 l/s.
Sometimes, when extinguishing a fire, stationary equipment cannot cope with the tasks that need to be solved as quickly as possible. This is largely due to the main disadvantage of such systems - the complete lack of mobility. That is why manual fire nozzles are the actual fire equipment that is on the market today.
In this article, we will consider the most popular models of manual fire nozzles, their functional features and principles of operation.
Device
The structural component of the universal barrels for manual use makes it possible to use both a continuous flow of fire extinguishing material and a sprayed one.
The RSK-50 manual barrel includes such elements as:
- frame;
- stopcock;
- nozzle on the barrel;
- connecting (integrated) head.
Structural elements of the RSK-50 barrel
The handle of a plug faucet is the main tool that controls the jet that is given out under pressure. By changing the position of the handle relative to the barrel itself, you can change the type of jet coming out of the barrel hole. The main types of water or foam mixture at the outlet:
- solid stream;
- spray stream;
- protective curtain.
Depending on the case, it is possible to change the type of fire extinguishing material supplied without violating the functionality of the entire device.
The plug faucet handles on the other two models mentioned above have exactly the same functions.
When the handle 4 of the plug valve 3 is positioned along the axis of the body 5, the liquid flow passes through the central hole and then exits the nozzle 12 in the form of a compact jet. When the handle is turned by 90 0, the central hole is blocked and the liquid flow from the cavity 8 of the hollow plug of the tap through the holes 7 and 10 enters channels 1, 2 and 9. Through the tangential channels 11, the liquid enters the central atomizer and leaves it in a swirling flow, which under by the action of centrifugal forces, when exiting the nozzle, it is sprayed, forming a torch with an opening angle of 60 0 . A similar principle of operation is incorporated in the design of universal trunks RSP-50 And RSP-70. Trunk RSKZ-70 allows, in addition, to additionally form a protective water curtain.
Maximum blast distance
continuous jet:
- 30 m (RSP-50, RSK-50),
- 32 m (RSP-70, RSKZ-70);
spray jet:
- 11 m (RSP-50, RSK-50),
- 15 m (RSP-70, RSKZ-70);
effective spray range:
- 5 m (RSP-50, RSK-50)
- 10 m (RSP-70, RSKZ-70), the average irrigation intensity is 0.14 and 0.2 l / m 2, respectively.
Barrel weight: 1.5 kg (RSP-50), 1.9 kg (RSK-50, RSP-70) and 2.4 kg (RSKZ-70).
Fire tests of barrels under conditions close to those of a real fire were carried out in Perm and Samara at special test sites.
Extinguishing with sprayed water jets of diesel fuel, flammable combustible liquids with a flash point below 0 degrees, as well as a trap product, which is an oil recovery with a specific gravity of 0.8 t / m 3 and a flash point of +28 degrees, showed a higher efficiency of new manual fire hoses compared to existing ones.
The proposed trunks are recommended for use in the configuration of mobile fire equipment, as well as (trunks RSP-50, RSP-70) internal fire hydrants in residential, public, administrative, industrial buildings and structures.
To complete mobile fire equipment and equipped with hoses d 38 mm, a manual fire nozzle RSP-38 has also been developed, which has the following main parameters:
- working pressure - 0.4-0.6 MPa;
water consumption:
- continuous jet - 1.8 l / s; sprayed - 1.5 l / s.
jet distance:
- solid - 25 m; sprayed - 11 m.
Specifications
| Indicators | Universal hand fire nozzles | With protective curtain | ||
| RSK-50 | RSP-50 | RSP-70 | RSKZ-70 | |
| Water consumption at a pressure of 0.4 MPa, l/s: | ||||
| continuous jet | 2,7 | 2,7 | 7,4 | 7,4 |
| spray jet | 2,7 | 2,0 | 7,0 | 7,0 |
| protective jet | - | - | - | 2,3 |
| Jet range at a pressure of 0.4 MPa, m: | ||||
| continuous jet | 30 | 30 | 32 | 32 |
| spray jet | 12 | 11 | 15 | 15 |
| Protective curtain flame angle, deg | - | - | - | 120 0 |
| Protective curtain flame diameter, m | - | - | - | 6 |
| Connecting fittings | GM-50 | GM-70 | ||
| Barrel weight, kg | 2,2 | 1,6 | 2,8 | 3,0 |
The manual fire barrel RSK-50 is a body, one end of the body has a threaded nozzle designed for screwing on a connecting fire coupling head, which connects the barrel to the fire pressure hose, the other end of the body has a replaceable nozzle through which a jet of water is ejected, also on a locking device (cock) is located in the barrel body.
The combined fire hand barrel RSK-50 is made of aluminum alloy grades AL9 and AK7 (AL9V). The manual fire barrel RSK-50 is not painted and is delivered assembled. The RSK-50 manual barrel has a belt that serves to carry it. Also, the RSK-50 combined barrel is equipped with a red shoulder, which is mounted on the barrel body and serves to make it easier to hold the barrel in your hands during use.
Combined manual fire barrel RSK-50 is designed to form and direct a continuous or sprayed jet of water or a wetting agent solution to extinguish a fire, as well as to shut off the water flow. The trunk fire manual RSK-50 is included in the set of fire trucks. The manual combined fire barrel RSK-50 is used in areas with a temperate, cold and tropical climate. The locking device (faucet) of the RSK-50 manual barrel is tested with a hydraulic pressure of 0.6 MPa; during testing, water leakage through the valve plug is permissible no more than 20 drops per minute.
Technical characteristics of the RSK-50 fire barrel
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Name of indicator |
RSK-50 barrel |
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Working pressure in front of trunks, MPa, (kgf/cm2) |
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Water consumption, l/s, not less than: |
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0,70(40) |
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Weight, kg, no more |
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Barrel fire manual RSKZ-70
Combination manual fire barrel RSKZ-70 is a type of fire fighting equipment. The RSKZ-70 manual fire barrel is a body, one end of the body has a threaded nozzle designed for screwing on a coupling that connects the barrel to the fire pressure hose, the other end of the body has a replaceable nozzle through which a stream of water is ejected, also on the barrel body a locking device (faucet) is located.
Combined manual fire barrel RSKZ-70 is made of aluminum alloy grades AL9 and AK7 (AL9V). The manual fire barrel RSKZ-70 is not painted and is delivered assembled. The RSKZ-70 manual barrel has a belt that serves to carry it. Also, the RSKZ-70 combined barrel is equipped with a red collar, which is mounted on the barrel body and serves to make it easier to hold the barrel in your hands during use.
Combined manual fire barrel RSKZ-70 is designed to form and direct a continuous or sprayed jet of water or a wetting agent solution at a constant flame angle to extinguish a fire, as well as to block the flow of water. The RSKZ-70 fire manual combined barrel, unlike the RSK-50 barrel, is also designed to form a protective water curtain that protects the fireman from thermal radiation. The trunk fire manual RSKZ-70 is included in the set of fire trucks. The RSKZ-70 fire hand barrel is used in areas with a temperate, cold and tropical climate. The locking device (faucet) of the RSKZ-70 fire hose is tested with a hydraulic pressure of 0.6 MPa; during the test, water leakage through the valve plug is not more than 20 drops per minute.
Technical characteristics of the RSKZ-70 fire barrel
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Name of indicator |
TrunkRSKZ-70 |
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Water consumption, l/s, not less than: |
7,4 |
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Water jet range (maximum for extreme drops), m, not less than |
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Spray jet flame angle, rad (deg), not less than |
0,70(40) |
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Protective curtain plume angle, rad (deg), not less than |
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Protective curtain torch diameter, m, not less than |
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Overall dimensions, mm, not more than: |
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Weight, kg, no more |
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Nozzle outlet diameter, mm |
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Nominal passage of the connecting head, mm |
Trunk fire manual SRK-50
Fire barrel manual combined SRK-50 is a type of fire equipment. The manual fire barrel SRK-50 is a body, one end of the body has a threaded nozzle designed for screwing on a connecting fire coupling head, which connects the barrel to the pressure one, the other end of the body has a replaceable nozzle through which a stream of water is ejected, also on the barrel body a locking device (faucet) is located.
Combined manual fire barrel SRK-50 is made of aluminum alloy grades AL9 and AK7 (AL9V). Fire manual barrel SRK-50 is not painted and is delivered assembled. The barrel combined SRK-50 has a belt that serves to carry it. Also, the SRK-50 combined fire barrel is equipped with a red shoulder, which is mounted on the barrel body and serves to make it easier to hold the barrel in your hands during use.
The barrel fire manual SRK-50 combined is designed to form and direct a compact or sprayed with a constant angle of the torch jet of water or a wetting agent solution to extinguish a fire, as well as to block the flow of water. The trunk manual fire SRK-50 is included in the set of fire trucks. The barrel of the manual SRK-50 is used in areas with a temperate, cold and tropical climate. The SRK-50 fire nozzles provide for a separate fixation of the angle of spraying water into the source of ignition.
Technical characteristics of the fire barrel SRK-50
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Name of indicator |
TrunkSRK-50 |
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Working pressure, MPa, (kgf/cm2) |
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Water consumption at operating pressure 0.4 MPa, l/s |
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Water jet range (maximum for extreme drops), m, not less than * |
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Spray jet flame angle, rad (deg), not less than |
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Overall dimensions, mm, not more than: |
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Weight, kg, no more |
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Nozzle outlet diameter, mm |
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Nominal passage of the connecting head, mm |
* The range of the SRK-50 fire nozzle was determined when the nozzle was located at a height of 1 m at an angle of inclination to the horizon of 0.52 rad (30°) and at a pressure in front of the nozzle of 0.4 MPa.
Purpose
Manual fire nozzles RSK-50 are designed to cover, form and direct a jet of water or an aqueous solution of a foaming agent: a continuous or atomized jet with a variable spray angle.
Trunks RSK-50 are used to complete mobile fire equipment, and can also be used to complete fire hydrants, motor pumps and fire trucks.
The barrels are designed to operate on water (except sea water), an aqueous solution of a foaming agent in areas with a temperate and cold climate, placement category 1 according to GOST 15150.
Main technical data
Trunks RSK-50 are manufactured in accordance with the requirements of technical specifications TU 4854-001-10661317-94 with amendment 7.
| Parameter name | Parameter value | |
| 1. Working pressure, MPa | 0,4-0,6 | |
| 2. Water consumption, l / s, not less than - continuous jet, - spray jet - for the formation of a protective water curtain |
2,7, 2,0 *, — |
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| 3. Range of water jet, (maximum for extreme drops), m, not less, - continuous jet, - spray jet |
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| 4. Effective range of the jet, m, not less than - continuous jet, - spray jet |
25, 5 * |
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| 5. Medium intensity, irrigation, spray jet, l/m2s, not less than |
0,14 * | |
| 6. Angle of spray jet, radius (degree), - minimal, - maximum |
0,7 (40), 1,22 (70) |
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| 7. Corner of the torch of the water protective curtain, radius (degree), not less than |
— | |
| 8. Diameter of the water torch, protective curtain, m, at least |
— | |
| 9. Nozzle outlet diameter, mm | 11H11 | |
| 10. Overall dimensions, mm, not more, - length, - height |
360, 140 |
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| 11. Weight, kg, no more | 1,85 |
Values are given at the minimum angle of the spray jet and the protective water curtain turned off.
p.p. values 3, 4, 5 are given when the trunk is located at a height of 1 m from the level of the test site and the angle of inclination to the horizon is 30 degrees.
Safety requirements
1. It is forbidden to use barrels near open power lines located within the radius of the jet.
2. It is forbidden to wear the shoulder strap of the barrel connected to the hose line when lifting and working at height.
3. By the time the water is started, the barrel must be closed and securely kept running.
Preparation and work order
1. In preparation for work, the barrel should be securely connected to the hose line.
2. Turn the handle to the “jet closed” position, signal readiness for operation.
3. After supplying water, move the handle to the position necessary to form a certain type of jet and point the barrel at the fire.
Maintenance
1. Specially trained people instructed on precautionary measures and rules of safe work are allowed to service the barrels.
2. For the rational use of trunks, it is necessary:
2.1. After finishing work, rinse the barrel with clean water, dry the belt, check the tightness of the threaded connections and, if necessary, tighten them to the stop.
2.2. Monthly check the technical condition of all parts (no cracks, dents, nicks, etc.).
2.3. Once a year, check the presence of grease on moving parts with a threaded connection, rotating parts and rubber rings and, if necessary, lubricate the threaded connections with grease according to GOST 4366, and rubber rings with CIATIM-201 GOST 6267 grease.
3. Store the barrel in conditions that exclude the impact of precipitation
4. Before short-term or long-term storage, steel parts (screw, washers, spring) of the barrel must be protected against corrosion with conservation oil K-17 GOST 10877.
Preservative oil should be applied to the surfaces of parts with a brush or swab. The oil can be applied preheated to 313 K (40°C) or unheated at a temperature not lower than 288 K (15°C). Heating conservation oil K-17 above 313 K (40? C) is not allowed. The validity period of conservation is up to 1 year. When the barrel is put into operation after storage, depreservation is not performed.
Warranty
1. If the consumer observes the operating and storage conditions, the manufacturer guarantees the compliance of the barrels with the requirements of TU 4854-001-10661317-94, amended. 7 within 24 months from the date of receipt of the barrel by the consumer.
2. The established service life is 10 years.
General information
Trunk RSK-50 designed to extinguish fires with a compact or sprayed jet of water with a variable spray angle. RSK-50 barrels are equipped with mobile fire extinguishing equipment, and internal fire hydrants can also be equipped.Trunks RSK-50, along with structurally similar trunks RSP-50, until recently, were one of the most common types of fire nozzles in the Russian Federation 50-00-00.PS, RSK-50-00-00.PS.
Manufacturer
Barrels are manufactured by many enterprises, but the products of OOO Novokhartsyzsky Machine-Building Plant are the most widely known.Hydraulic characteristics
| Jet type | head, m | consumption, l/s |
|---|---|---|
| Base | ||
| solid | 40 | 2,7 |
| Sprayed with a spray angle of 40gr. | 40 | 2 |
Design features
The trunk consists of a body 1 , connecting head 2 overlapping device with handle 3 and nozzle 4 .The design of the barrel allows the formation of a compact or sprayed jet at the outlet, thereby increasing the efficiency of extinguishing fires and more efficiently using the water supply.
The position of the handle of the shutoff device for shutting off, forming a compact or atomized water jet:
- I position - the jet is blocked;
- II position - compact jet;
- III position - spray jet. The barrel of the RSK - 50 is additionally equipped with a device that allows you to change the angle of the spray jet, depending on the position of the spray nut 6 ;
- IV position - the minimum angle of the torch;
- V position - the maximum angle of the torch.
Specifying Security Measures
It is forbidden to use trunks near open power lines located within the radius of action of a continuous jet.It is forbidden to wear the shoulder strap of the barrel connected to the hose line when lifting and working at height. By the time the water is started, the barrel must be securely kept working.
Barrel preparation for work
In preparation for work, the barrel should be securely connected to the hose line. Set the barrel handle to the position necessary for the formation of a certain type of jet and direct it to the fire. Signal readiness for work.To supply water to the fire, fire nozzles of various modifications are used. The simplest ones create a continuous compact jet, some models allow the jet to be sprayed, as well as create a water curtain to protect against heat flow. A special class is represented by barrels for creating air-mechanical foam from a foam concentrate solution. NPO RUSARSENAL offers fire hand guns from various manufacturers in a wide range - from the simplest to the professional ones.
Range
Trunks are manual RS-25, RS-50, RS-50P, RS-70 are the simplest devices for creating a continuous compact jet. They are used, as a rule, for a complete set of fire cabinets.
For stationary mounting on a fire hose, modifications RS-50.01, RS-50.01P, RS-70.01 and RS-70.01P are used. They are used to complete fire cabinets, in cases where extension of the hose line is not required.
| Name of indicator | RS-25A | RS-50A | RS-50.01A | RS-50.01P | RS-70A | RS-70.01A | RS-70.01P |
| 25 | 50 | 50 | 50 | 70 | 70 | 70 | |
| Working pressure, MPa | 0,4-0,6 | ||||||
| Water consumption at 0.4 MPa, l/s | 3,6 | 7,4 | |||||
| Compact jet range at 0.4 MPa, m | 28 | 32 | |||||
| Nozzle outlet diameter, mm | 8 | 13 | 19 | ||||
| Overall dimensions, mm | 205×60 | 270×100 | 190x62 | 190x62 | 315×128 | 190×78 | 190x62 |
| Weight, kg, no more | 0,3 | 0,7 | 0,27 | 0,1 | 0,95 | 0,38 | 0,2 |
| Name of indicator | RSP-50 | RSP-70 | RSK-50 | RSKZ-70 | SRK-50 | ORT-50 | ORT-50A |
| Nominal passage of the connecting head, mm | 50 | 70 | 50 | 70 | 50 | 50 | 50 |
| Working pressure, MPa | 0,4-0,6 | 0,4-0,8 | |||||
| Water consumption at 0.4 MPa, l/s, not less continuous jet atomized jet protective curtain |
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| 2,7 | 7,4 | 2,7 | 7,4 | 2,7 | 3,0 | 7,4 | |
| 2,0 | 7,0 | 2,0 | 7,0 | 2,7 | 3,0 | 7,4 | |
| - | - | - | 2,3 | - | 1,3 | 1,3 | |
| Jet range, m, not less than solid atomized |
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| 30 | 32 | 30 | 32 | 30 | 32 | 33 | |
| 11 | 9 | 11 | 9 | 12 | 24 | 24 | |
| Spray jet flame angle, degrees, not less than minimum Maximum |
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| 40 | 40 | 40 | 40 | 25 | 60 | 60 | |
| - | - | 70 | - | 60 | 20 | 20 | |
| Protective curtain flame angle, degrees, not less than | - | - | - | 120 | - | 120 | 120 |
| Outlet diameter, mm | 12 | 19 | 12 | 19 | 12 | ||
| Protective curtain torch diameter, m, not less than | - | - | - | 3 | - | 3,5 | 3,5 |
| Overall dimensions, mm, no more | 350×140 | 390×170 | 360×140 | 430×170 | 390×145 | 305×230* | 305×230* |
| Weight, kg, no more | 1,45 | 2,80 | 1,95 | 3,00 | 1,80 | 1,4* | 1,4* |
*without foam nozzle.
Quality
All barrels supplied comply with GOST and technical regulations on fire safety requirements (123-FZ dated July 22, 2008), have passed all stages of development, production, are certified in the prescribed manner and are mass-produced.
