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CO2 nozzle coverage area

the orifice size and nozzle pressure. The area covered in local application is dependent upon the discharge rate and the height of the nozzle above the sur-face being protected. Height range: 15 to 91 1/2 in. (38 to 232 cm). Discharge rate: 11 to 48.5 lb per minute (5 to 22 kg per minute). See carbon dioxide design manual for UL an

Three Nozzle Configurations Pipe Volume Ratios: 3% to 75% Discharge times: Total Discharge Time: [sec]: 30 to 40 Liquid Discharge Time [sec]: 18 to 25 Tee Split Ratios: Bull Tees: 50:50 to 80:20 Side Tees: 90:10 to 65:35 Constructed of commercially available hardware iforuse in CO 2 systems Cylinders factory/distributer filled SupDet® 201 For total flooding applications distribute the discharge nozzles based upon the following two constraints: i- Maximum Spacing = 20 ft (6 m) ii- Flow Rate, based on Table below: Nozzle Size (in.) Flow Rate per Nozzle (lb/min) ½ Up to 120 ¾ 121 - 25 nozzle pressure. The area covered in local application is dependent on the discharge rate of the height of the nozzle above the surface being protected. Height range: 18 to 72 in. (46 to 183 cm). Discharge rate: 14 to 48.5 lb per minute (6 to 22 kg per minute). See carbon dioxide design manual for area coverage and required flow rates. Shipping Assembl If obstructions cannot be avoided, additional nozzles may be needed to provide complete coverage of the hazard area. In areas where the environment may cause extreme build-up of class A materials, such as wood debris, coal dust or oil, it is advised that designers use the largest system tank available and keep nozzles per tank to a minimum

Spray Nozzles; Fog Nozzle; Technical Details; Site Map; Company Address: Changan town Dongguan City Guangdong Province of China; Tel: 86(769)-81872789 85076919 Fax: 86(769)-85079909 E-mail: info@relab.cn ; Website http://www.relab.cn Certificate ID: ICP-0707006 The coverage area is roughly a circle with the sensor in the center. A 7,800 ft² (725 m²) circle is 100 feet (30.5 meters) in diameter. One example of this is a Carbon-Monoxide sensor mounted to a support column in the middle of a parking garage. If the sensor is mounted on a wall, the area is half, roughly a half circle First look at the top row from left to right. This is the PSI of your pump. If you have a TS2021 pump we know that the max PSI is 3500. The larger area to the right of the nozzle size and below the PSI range is the Gallons Per mMinute. First find the top to bottom column just below the PSI range Due to deployment costs, there is seldom full area coverage in rural and wilderness areas. Instead, major roads and villages are typically covered, and there can be coverage holes, that is, blank spots, between sites in many cases. It is very common that mobile operators are targeting population coverage only

When flammable liquid fires are to be extinguished, a minimum freeboard of 150 mm is necessary. 7.1 CO2 Quantity The maximum area protected by each discharge horn and the amount of CO2 required varies with the distance of the horn from the surface being protected. The greater the distance, the larger the area covered and quantity of CO2 required 4. Nozzles - FM-200 is distributed within the protected area by the discharge nozzle which is sized to ensure the correct flow of agent for the hazard. Nozzles are available with seven or eight ports to allow for either 180° or 360° horizontal discharge patterns. Ports are drilled in .004 in. (0.1 mm) increments to the specified system design The nozzle, also called the cup, screws onto the collet body or gas lens and introduces the gas to the weld. Nozzles are available in various diameters, lengths and shapes to produce different shielding profiles or laminar flow lengths. Remember, a longer laminar flow is desirable. As nozzle diameter increases, a longer laminar flow is produced 1 GPM from each nozzle. When you check the nozzles, the output is actually 1.5 GPM. You can either change the nozzles or adjust your field speed to achieve 30 GPA. 1.5 GPM x 5940 = 8,910 30 GPA x 30 inches 900 = 9.9 or 10 MPH as the new field speed Formula 3 GPM x 5940 30 GPA x 420 4. How much area can my sprayer cover (acres)

Aim nozzles so that a gentle circulation of carbon dioxide is achieved throughout the protected space. Nozzle shells shall be horizontal to, or within 5 degrees down from horizontal to the floor, at floor level. Nozzle discharge rate shall be 35 to 45 lb/min (16-20 kg/min). Nozzle coverage shall not exceed the NRTL-listed coverage. SUBMITTAL maximum nozzle coverage area 100 m2 [8]. Manufacturers have their specific nozzle design that satisfies UL standard. The maximum agent quantity to be discharged from one nozzle is between 25 kg - 100 kg in 10 s. In general, the maximum nozzle heights are 4 to 5 m, nozzles area coverage 9 to 10 m2, and minimum nozzle pressures between 3 to 6 bar Area Coverage - For the Sinorix 227 series, the 180° and 360° nozzles were tested for maximum-area coverage using a 40 ft. wide by 40 ft. long (12.2m -x- 12.2m) enclosure. The maximum-area coverage per nozzle 2. (148.6 m2) For the Sinorix 1230 series, the 180° nozzles were tested for maximum-area coverage using a 32 ft Spray Coverage. When considering the coverage of spray a nozzle will give the spray angle that it is rated at is starting point of any calculation. This calculation, however, is not always a matter of simple trigonometry. Spray Angle: (A) The included angle of the spray as measured close to the nozzle orifice. Since the droplets are immediately.

  1. 42. Protected area or room is properly sealed and so noted on plans, 2-2.2 43. Forced-air ventilation is designed to be shutoff if its operation may affect the performance of the system, 2-2.2.2. 44. Nozzle coverage areas are in accordance with the criteria established for the specific hazard, 3-4.3, 3-4.4. SIGNS NFPA12 Section 4.3.2 45
  2. Our FM-200™ system offers three different nozzle types in seven different sizes, with expansive vertical and horizontal coverage from each single nozzle. Listed and approved selector valves allow us to provide economical solutions to large projects
  3. nozzles produce large droplets at pressures of 10 psi to 25 psi. The nozzles should be spaced closer than 60 inches apart. The nozzle spacing, orientation, and release height should be set for 100 percent overlap. Nozzle spacing of 30 inches to 40 inches produces the best spray patterns. Pressure influences the spray pat
  4. EXTENDABLE LANCE 5.5M W/OUT NOZZLE. Product Code. Product group: 436. Product number: 659151. The 5,5m lance has been developed in order to enable chemical application and high pressure cleaning above the normal reach of any standard lance. Expand or shrink gallery

Carbon Dioxide (CO 2) Flow Calculations Eric W

The coverage area is about 5 m 2 (54 sq ft). One benefit of this type is that it may be used for passive suppression. The ball can be placed in a fire-prone area and will deploy automatically if a fire develops, being triggered by heat Carbon dioxide (CO2) is a colorless, odorless, and chemically inert gas that is both readily available and electrically non-conductive. It extinguishes fire primarily by lowering the level of oxygen that supports combustion in a protected area. This mechanism of fire suppression makes CO2 suppression systems highly effective, requiring minimal. A converging-diverging nozzle in a lab class having a throat area of 1 cm 2 and an exit area of 3.5 cm 2 exhausts into a plumbing system that provides a controllable back pressure. The supply pressure is 1 MPa. Find the four ranges of back pressure for the operating modes of the nozzle. The solution is as follows

• Nozzle placement up to a height of 18' 6 • Nozzle coverage area of 42' 6 x 42' 6 • Virtual drop-in replacement for existing Halon 1301 installations - uses existing piping, changes may be limited to replacement of agent storage cylinders and nozzles When you choose Kidde, you've chosen the world's mos This causes the CO2 gas to emerge at great speed, which is why CO2 fire extinguishers are not recommended for chip pan fires - they could literally blast the flames into surrounding areas. Unlike water and foam extinguishers , CO2 fire extinguishers do not work by cooling the fire and so are ineffective on fires involving flammable solids

CO2 Nozzle Spacing - NFPA (fire) Code Issues - Eng-Tip

coverage for larger hazard areas • Enhanced performance and versatility - use with 3-way directional valves for economic protection of multiple enclosures • Nozzle placement up to a height of 18' 6 • Nozzle coverage area of 42' 6 x 42' 6 ADS ADVANCED DELIVER The large square coverage area makes these nozzles a good choice for chemical processing as well as for cooling applications. Solid-Stream Spray Nozzles. Spray a precise, concentrated, high-velocity stream longer distances than other spray patterns to handle tough cleaning applications

Fire Suppression Basics: Nozzle Coverage and Location - Arden

  1. A CO2 cartridge is used to propel a small rocket cart. Compressed CO2, stored at a pressure of 41.2 MPa (abs) and a temperature of 20 C, is expanded through a smoothly contoured converging nozzle with a throat area of 0.13 cm2. Assume that the cartridge is well insulated and that the pressure surrounding the cartridge is 101 kPa (abs)
  2. 50W CO2 Laser Engraver Cutting Machine with 12 x 20 Working Area. Regular price. $1,799.99. /. Shipping calculated at checkout. Default Title - $1,799.99 USD. Add to cart. Buy it now. More payment options
  3. Sprinkler Nozzle Flows. Find the nozzle requirements for a given pressure or flow rate. Learn more about the units used on this page
  4. Type D nozzle Shell: Steel 1/2 in. NPT Female 1 through 7 Listed for External Thread: Steel use with FM manual for FM listed area coverage and required flow rates. Note: For non-typical wet bench environments, CO2 Title Pag

Calculated Coverage area of nozzle from expert in Spray

(container holding the liquid) has a constant area opening, the wafer is located on a sphere as defined by figure 12-3, the the deposition rate is, where is the mass density (kg/m2), Area is the area of the wafer, and r is the radius of the sphere defined in figure 12-3. Evaporator Physics Virtual Source: Point in free spac Grow room and indoor greenhouse growers online agree that for optimum plant growth, you should enrich the air around the plants with carbon dioxide (CO2) during the daylight growth cycle. Photosynthesis (plant growth) requires light, nutrients, water and CO2. If you give your plants the perfect amount of light, water, and nutrients, the limiting factor in their growth will be the amount of CO2. Request PDF | V-SHAPED HOLES FOR FULL COVERAGE FILM COOLING OF A HIGH-PRESSURE NOZZLE GUIDE VANE | This paper describes an experimental activity carried out to investigate the potential of V. Fixed monitors are used with foam for firefighting or with water for cooling of structures. Simple in principle they are the result of complex engineering, designed to deliver high performance after long periods of inactivity. Angus Fire's range of fixed monitors is predominantly installed in purpose built fire protection systems For example, where the large and irregular shape of the protected space does not permit the above mentioned nozzle coverage, or where the space has a significant amount of uncloseable openings, additional CO2 may be supplied as compensation to ensure that the CO2 in the space can reach extinguishing concentrations

The coverage area is about 5 m 2 (54 sq ft). One benefit of this type is that it may be used for passive suppression. The ball can be placed in a fire-prone area and will deploy automatically if a fire develops, being triggered by heat. They may also be manually operated by rolling or tossing into a fire Why is CO2 used in welding? MIG (GMAW) welding with shielding gas and a solid wire electrode produces a clean, slag-free weld without the need to continually stop welding from replacing the electrode, as in Stick welding. Increased productivity and reduced clean up are just two of the benefits possibl

Specifications: Standard coverage area: Up to 12,000 sq.ft. Coverage with HAF fans: Up to 28,000 sq.ft. Nozzle type: Air atomizing; Standard control system: 2- 24hr quartz autostart timer The nozzle is stamped The R-102 system uses two 1/2N Nozzles for all upright broiler with 1F, indicating that this is a one-flow nozzle. protection. The nozzle is stamped 1/2N, indicating that this is The single 1F nozzle must be located directly in line with the a half-flow nozzle. Page 50: Protectio Abstract. In this paper, a one-dimensional thermodynamic analysis is developed to design and evaluate the performance of primary nozzles in two-phase ejector utilized in the tran

Air Quality Sensor Coverage Area and Mounting

BTU Calculator AC BTU Calculator. Use this calculator to estimate the cooling needs of a typical room or house, such as finding out the power of a window air conditioner needed for an apartment room or the central air conditioner for an entire house Manually operated sprayers (hand pumps, hand cans, and backpacks) are designed for spot treatment and for spraying smaller areas such as tree seedlings, small lawns, or flower beds not suitable for power sprayers. As is true for all sprayers used for application of chemicals, application accuracy with backpack and hand can sprayers is affected by travel speed, nozzle type, and spray pressure The world's leader in spray technology, Spraying Systems Co. designs and manufactures spray nozzles, air control nozzles, tank washers, accessories, spray systems and controls, and fabricated products such as spray headers and lances. Spray analysis, performance testing, prototyping and consulting services are also available CO2 discharge nozzle 1/2″. PRODUCT CODE: KX09-004-63. ERP: 0130000. Please first to see this content Differential pressure is measured at the exact locations specified in ISO (1991) (shown in the above figures). K m is computed to allow you to design pipe systems with nozzles and incorporate their head loss. Head loss is computed as h=K m V 2 /2g where V is the pipe velocity. Discharge Coefficients

Watch on. American Made Since 1968. Buckeye Fire offers a complete line of handheld and wheeled fire extinguishers, extinguishing agents, fire suppressing foam concentrates & hardware, pre-engineered kitchen suppression systems, and industrial gas & flame detection systems suitable for a variety of industries. Buckeye COVID-19 Update Baffle NOZZLES The Baffle Nozzle provides a 180-degree, fan-shaped discharge pattern that makes it acceptable for perimeter mounting around the protected hazard space. The Baffle Nozzle provides a 180-degree, fan-shaped discharge pattern that makes it acceptable for perimeter mounting around the protected hazard space

Produk Glorystar Laser Technology Co, Ltd merupakan perusahaan dengan teknologi tinggi yang menggabungkan teknologi canggih untuk mengembangkan dan memproduksi mesin laser cutting dengan power tinggi. Kami memiliki kemampuan manufaktur untuk menghasilkan laser cutting logam 500W-20000W untuk memenuhi beragam kebutuhan pelanggan kami. Jenis produk utama kami terkandung mesin pemotong pipa laser. NOZZLE AIMING DEVICE 2-12 HORN/STROBE ASSEMBLY 2-12 COMPONENTS LIST 2-13 3. SYSTEm DESIGN GENERAL 3-1 NOZZLE COVERAGE AND PLACEMENT 3-1 Duct Protection 3-1 Modularizing Duct 3-2 Transition Ducts 3-3 Electrostatic Precipitator 3-3 Plenum Protection 3-3 Appliance Protection 3-4 Design Chart 3-4 Fryers 3-5 Range (Small) 3-6 High-Proximity.

AREA DISCHARGE PIPING DISCHARGE NOZZLE PROTECTED AREA NOTE: This is a typical layout for an ANSUL® R-102 Restaurant Fire Suppression System. The actual system installation may vary. 003441 HOW THE ANSUL® R-102 SYSTEM OPERATES 1. A fire starts in the protected area. 2. Heat sensitive fusible link detectors activate the system. 3 Square Spray - UQ series. These SPRAYTECS full cone nozzles contain a swirler inside designed to produce a square shape spray. The obtained result is a uniform spray, ideal to cover totally the targeted surfaces and with maximum efficiency in terms of minimal amount of fluid used for this purpose Penrose. 105 Hugo Johnston Dr Penrose AUCKLAND, 1061 Phone: +64 9 525 0233 Fax: +64 9 526 184

Nozzle chart tells the operator the correct nozzle to be usin

FEATURES. Antari continues its commitment to produce the most innovative and reliable snow effects on the market with the new SW-300. The SW-300 can blanket an extremely wide coverage area with an incredibly realistic snow effect all thanks to Antari's patented nozzle design Exposure Protection Sprinklers Window Type. Model B-1. Upright and Pendent Foam-Water Sprinklers, K=3.0. Model TN-17. Model TN-17, 16.8 (K240) K-factor Horizontal Spray Nozzle, Open. Model TN-25. Horizontal Spray Nozzle, Open K-factor 25.2 (K360) DDS Duct Deluge System. For The Protection of Ventilation Ductwork Handling Corrosive Gases Portable Extinguisher CO2 Parts. There are 13 products. 22-45kg CO2 Wand - Long Wand Nozzle 45 Degree Bend - Stainless 316 With S Type Nozzle

Area Coverage - an overview ScienceDirect Topic

  1. Oscillating monitors are often found protecting the most hazardous area of a site or platform. They can be turned on remotely via a water valve allowing the user to remain at a safe distance. The automated sweeping action enables the monitor to cover a wide risk area. Angus Oscillating monitors are supplied with a permanent [
  2. INERGEN® is a mixture of 52% Nitrogen, 40% Argon and 8% CO2. However, in the event of a fire, when INERGEN® is discharged, it mixes with the air present in the room to create a mixture that comprises of 67.3% Nitrogen, 12.5% Oxygen, 17% Argon and 3.2% Carbon Dioxide
  3. The nozzle is connected by a 10-Meter long hose and it can be easily rigged on a standard truss or tripod stand. Air and snow fluids are delivered to nozzle via the 10-Meter hose. Users can adjust the air volume and fluid flow rate to get the right snow effects needed, from fine snow to blizzards. The functions of S-500L are exactly same as S-500

COVERAGE: Plan starts on the date of purchase. The first one worked fine for about a month, then suddenly the CO2 wouldn't stop coming out the nozzle. I closed the CO2 tank, let out the pressure and checked all the connections. I am no expert in this area, but I am pretty sure a valve that can't close is a pretty dangerous issue Most backpack sprayers use a single nozzle. Swath width is the effective width of the area sprayed, being sure to account for overlap between passes. For example, a flat fan nozzle requires overlapping passes to achieve uniform coverage. If you use a sweeping motion from side to side, be sure to measure the full width sprayed as you walk forward

Kidde co2 product manual 050128 - SlideShar

Authorized ANSUL Distributors offer the highest caliber of quality products, service and support worldwide. ANSUL® Non-Fluorinated 3x3 UL201 foam concentrate sets the new standard for Class B firefighting. The ANSUL® Lithium-Ion Risk Prevention System offers advanced early failure monitoring of Lithium-Ion batteries by detecting off-gases Aim the nozzle toward the base of the fire. Stand approximately 8 feet away from the fire and squeeze the handle to discharge the extinguisher. If you release the handle, the discharge will stop. Sweep the nozzle back and forth at the base of the fire and slowly move forward to extinguish the remaining fire. After the fir Diffuser (thermodynamics) A diffuser is a device for reducing the velocity and increasing the static pressure of a fluid passing through a system. The fluid's static pressure rise as it passes through a duct is commonly referred to as pressure recovery. In contrast, a nozzle is used to increase the discharge velocity and lower the pressure. The Kidde Kitchen Fire Protection System. The Kidde Wet Chemical System features 24-Hour automatic or manual protection for commercial cooking areas; ducts, plenums, hoods and cooking surfaces. The wet chemical agent is designed for quicker flame knockdown and faster suppression. It exceeds stringent UL 300 standard and complies with NFPA. Liquid Adhesion & Coverage. This allows the solution to cover hidden and shadowed areas, and enables you to cover a large area in shorter time. Match Dwell Times. Our foggers standard 3-in-1 nozzle allows the user to match particle size to the chemical's required dwell time

Pyro-Chem products pre-engineered restaurant, gas station, industrial fire suppression systems, FM-200 Clean-Agent Fire Suppression Systems, Detection and Control Panels, FLAG FIRE portable fire extinguisher Time how long it takes to spray this 128th acre area with water at a constant speed and pressure (Note: Ensure uniform coverage without dripping). Repeat three times and calculate the average time required. (Example: 92 seconds to spray 128th acre). Table 1. Common backpack sprayer nozzles, uses, and swath width. NOZZLE TYPE SITE / USE SWAT China Fire Extinguisher supplier, Fire Hose, Fire Hose Reel Manufacturers/ Suppliers - Beijing Synergy Technology Co., Ltd 1. A hydrostatic test pump, hand or power operated, capable of producing not less than 150 percent of the test pressure, which shall include appropriate check valves and fittings; 2. A flexible connection for attachment to fittings to test through the extinguisher nozzle, test bonnet, or hose outlet, as is applicable; and. 3

Proper Shielding Gas Coverage Is Key to Success in GTA

Revit® Families. Listed below are all Revit® families currently available for Viking sprinklers, valves, and systems. We are continually adding files, so be sure to check this page periodically. For easy access to the Viking families in Revit® use the Viking Tools for Revit® available here! This page last updated 09/29/2020 Distributor / Channel Partner of Tyco ESFR Sprinklers - TYCO ESFR 25.2 ( 360 ) Sprinkler Pendent UL/FM Approved, TYCO ESFR 240 (17) Sprinkler UL / FM Approved, TYCO EC-25 K360 Upright Sprinklers offered by Reactra Engineering Private Limited, Chennai, Tamil Nadu

PPT - Semiconductor Equipment Fire Suppression Compliance

Hazard Area and Nozzle Placement Design Criteri

Western Petroleum is a locally own fuel, lubricant and oil distributor offering high fidelity delivery services accross Maritime provinces. Proud to deliver Shell Lubricants & Esso fuel products in Nova-Scotia & New-Brunswick Carbon dioxide has been recognized as a fire extinguishant for many years. It has been used in fixed systems since before World War I and almost everyone in the fire protection community has used or seen used a hand portable CO2 fire extinguisher CO2 extinguishers contain carbon dioxide, a non-flammable gas, and are highly pressurized. The pressure is so great that it is not uncommon for bits of dry ice to shoot out the nozzle. They don't work very well on class A fires because they may not be able to displace enough oxygen to put the fire out, causing it to re-ignite If a nozzle is flowing more than 10 percent over its rated capacity, or more than 5 percent above or below the average of all the nozzles on the boom, replace it. With clean water in the tank, set the pressure at the proper level for the nozzles you're using and adjust the nozzle height for uniform coverage Up there wwe have some wonderful resources; CO2, H2O, O2, N2 and energy in the form of sunlight. All the buidling blocks for most of the known chemicals found in Organic Chemistry. Surely someone can think of a chemical pathway that will work. The surface area of all those aerosols up there is huge

Spray Coverage - Spray Nozzl

XIN-RONG ZHANG, PHD, is Professor in the Department of Energy and Resources Engineering at Peking University in China. His contribution to this area includes not only the funda­mentals, such as flow and heat transfer of supercritical CO2; but also applications, designs of commercial and industrial CO2 heat pumps, novel CO2 re­frigeration cycle using solid-gas flow, and solar powered CO2. Option 2: Add Fluorocarbon Coating to 140°F, 160°F, 190°F, 225°F, 275°F, 325°F, 360°F, 450°F. Minimum Order is 25 pieces per temperature. (built to order, non-returnable) Option 3: Add 12 inch Extended Leadwires to 275°F, 325°F. Minimum Order is 50 pieces per temperature

Narpad > Products > WATER MIST

The easy fix is to preheat the metal to 200 to 220 degrees F to evaporate the moisture. Plugged or restricted gas metal arc welding (GMAW) gun nozzles —typically from weld spatter—impede the delivery of shielding gas. To rectify this obstacle, the welder needs to look at the nozzle opening before starting a weld It gives you efficient coverage over large work areas. the Air Spreader Nozzle distributes air over a wide area, and the Rubber Tip help protect delicate surfaces while you work. These 3/8-24 threaded accessories are compatible with Capri Tools CP21089 2-Way Air Blow Gun

Nittan Addressable Heat Detector - CVFire Extinguisher - 5KG Modular Powder Fire ExtinguisherSEVO SYSTEM | Emirates Fire Fighting Equipment Factory (FIREX)

Unlimited Coverage! Just add expansion kits of nozzles and valves. Includes 8 nozzles recomended up to 200 sq. ft. of coverage. Can be plumbed to multiple grow spaces. Multi-nozzle hand wand options. Accept all of todays insecticides, fungicides, oils and nutrients. No more suiting up with protective gear Nozzle to be aimed to the center of the hazard area of the appliance. Multiple fryer nozzles may be used to protect single vat fryers up to a maximum protected area of 5570 cm2. The fryer must be divided into modules for single nozzle coverages and the nozzle located and aimed for each module as indicated 2. Measure The Area Of Each Zone. Next, you will need to discover the square footage of every zone. This information will help you decide what kind of heads to buy, as well as how many you will need. Each nozzle will have a maximum throwing distance that is recommended by the manufacturer Tyco Fire Protection Products is a leading manufacturer of water-based fire suppression system components and ancillary building construction products. Sprinklers - Valves & Accessories - Grooved Products - Blazemaster CPVC - SprinkCA

RATE OF RISE HEAT DETECTOR (EN-54) – Booth Fire Protection

This high quality 5kg CO2 (carbon dioxide) fire extinguisher is supplied with a wall bracket, a fire extinguisher location sign, and a CO2 fire extinguisher identification sign. The 5kg CO2 carbon dioxide fire extinguisher features a hose with horn type nozzle end. Due to the fire extinguishers weight, it will require mounting on a solid wall 2.2.6 Discharge Nozzles: Each discharge nozzle shall be tested and listed with the R-102 system for a specific application. Nozzles tips shall be stamped with the flow number designation (1/2, 1, 2, and 3). Each nozzle shall have a metal or rubber blow-off cap to keep the nozzle tip orifice free of cooking grease build-up move rapidly from side to side to gain full coverage. o In small spill fires, where the entire width can be covered by the sweep of the dry chemical stream, attack the fire from the front. The stream will discharge over the entire spill area. o Work with any wind or breeze at your back. 2.3.4 Halon 1211/1301 Extinguishers Wet chemical extinguishers are one of the less well-known extinguisher types. We explain all in our simple guide. Summary: Wet chemical fire extinguishers are the only extinguisher recommended for use with cooking oil fires and are essential safety kit for professional kitchens

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