K factor calculation for spray nozzle WARNING: Cancer and Reproductive Harm - www. Orifices and nozzles are typically used to deliberately reduce pressure, restrict flow or to measure flow rate. When considering the coverage of spray a nozzle will give the spray angle that it is rated at as starting point of any calculation. 0. Apply a small amount of pipe joint compound or tape to the external threads of the nozzle, taking care not to allow a build-up of compound inside the 5_MEDIUMVELOCITYWATERSPRAYNOZZLE. 54) (1. Inputs to this calculator are the nozzle type, current operating pressure and flow, desired flow or desired Thus, you need to get fire sprinklers with the right K-factor (among other characteristics) to ensure appropriate fire protection when installing or replacing sprinklers. It calculates the total water required and designs the spray coverage for the top, shell rings, bottom, appendages, and legs. 5000 TECHNICAL REFERENCE Accurate drop size information is an important factor in the overall effectiveness of spray nozzle operation. Considering the challenges posed by experimental research, numerical calculations serve as another effective method to investigate the internal flow and spray of injector nozzles. 12,13. For the portion of the tank shell above walkway PNR short body nozzle with a k-factor of 7. Spray . During use spray nozzles are exposed to wear and should be changed, at least, when the flow rate exceeds 10 % of Larger K-Factor nozzles (K-Factor up to 11) have a 20mm BSP Male inlet thread and up to a K-Factor of 21 for 25mm nozzles. It’s up to you. Hulkkonen et al. Care must be taken to ensure that the replacement spray nozzle is the proper model with the correct K-Factor. You also should consult the label on the product you apply for guidance on the specific spray nozzle requirements for your application. This article gives typical values of the discharge coefficient for common orifice and nozzle designs. • 180-degree directional spray nozzle, nominal K factor: 80 l/min/√bar For the fire tests involving deluge nozzles, standard and directional pendent spray nozzles (open version) calculation below). Semi-circular spray pattern. Spray nozzles can for example be fire sprinklers or water mist nozzles, hose The K factor is a unique constant for that particular nozzle which should be listed in the nozzle data table. different K-factor of nozzle will give different flowrate for each nozzle based on the nozzle pressure. The HV nozzle was designed specifically for fixed hazards like circuit breakers, diesel tanks, lube oil systems, and more. pdf), Text File (. The orifice calculator is based on eq. Each model has three Correction coefficient should be 0<C≤1. [19] has investigated the effect of nozzle K-factor on the spray A further tip is to ensure that the K factor is in the correct units. com 3 In line with our policy of continuous product improvement LIFECO reserves the right to modify specifications without When mounted in pendent position acts as a window spray nozzle. it is imperative to establish a connection between the spray and internal flow at actual injection pressures to overcome these limitations. 0 (where the units are in US gpm/psi 0. 1/2)) were used in the experiments. uk TF Wide range of flows and angles CALL NOW : +44 (0) 1273 400092 FULL CONE j The original spiral nozzle invented by BETE and continuously improved! j High energy efficiency j One-piece/no internal parts j Clog-resistant performance The document contains calculations to determine the water demand and spray nozzle requirements for cooling horizontal tanks of two different sizes - 100 KL and 200 KL. 57 K commercially available. Metric calculations use the flow in liters per minute and pressure in bar. The document provides technical specifications for a medium velocity water spray nozzle used in fire protection systems. See full size image. ) Angle Listings and cULus/ NYC4 FM cULus/ NYC4 FM cULus/ NYC4 FM The Foam/Water nozzle is of the air-aspirating type, designed for low-expansion in the ratio of 5:1 to 7:1 (@1 to 7 bar). Alajbegovic2, R. Available in SS316 construction. It weighs only 30% of the weight compared to conventional air aspirated open head foam spray nozzles. 5) or K=8. This is the starting point for most water-based fire protection design and calculations. If the ‘K’ factor and exponent have been established, along with the pressure of the spray, the flow rate can be easily calculated. The K-factor is calculated from: K = Flow rate (dm3 min-1) / Pressure0. nozzle spray characteristics, the design. All nozzles have standard 150o spray angle. During use spray nozzles are exposed to wear and should be changed, at least, when the flow rate exceeds 10 % of Spray coverage. They must be cleaned only with adequate tools. Portions Included in 3-D BWR RO Nozzle FEM. For more detailed information, refer to NFPA 15 as well as other relevant NFPA standards. Pipe Flow Expert uses the equivalent fitting ‘K’ factor method to model the flow and pressure loss through a spray nozzle where a Sprinkler K Value is used to specify the nozzle characteristics. Brass. D 2 - orifice diameter (m) Spray Nozzle having a 25. 4 25. 180Kg A further tip is to ensure that the K factor is in the correct units. cm (20 PSI). com www. Spray Coverage Calculator. ) Angle Listings and Approvals3Base P/N1 SIN2 Nominal K-Factor MVK41 (Medium Velocity nozzle with K-factor 41 litre/(min bar. For best results, the storage as well as any further shipment be made in original packing only. Contact Us. 3 80 12. Calibration should be undertaken using a fixed nozzle position. 82) nozzle factor & spray angle a b c a/f k 48 x 100º 52 29 36 k 58 x 100º 52 29 36 k 61 x 75º 52 29 36 k 78 x 90º 52 29 36 dimension in Tools like the PWM nozzle calculator and CP nozzle calculator can help you get the right droplet size. Typical sprinkler Discharge Coefficients might be: K=5. This holds for the type Spray angle; K factor; Finish type; Certification; K factor and Spray angle are indeed the most important factors for selecting a fire water spray nozzle. 16 No. 21 No. The air flow can be calculated from the differential pressure (between the static pressures) according to the following equation: Q = K x Product Line Model 05 WC Brass Model 05 WC-S 316 Stainless Steel Description Open nozzles that discharge medium sized water droplets in a wide flat angled spray with medium impact to produce a uniform spray distribution. CAD Drawings Bulletin 105? Learn K-value is therefore critical. They might also provide a flow rate for a given pressure provided, from which you could determine a K coefficient from if you needed to apply it to other applications. requirement with discharge coefficients or K-Factors K-43 (2. There is a metric K factor and an imperial K factor for each nozzle. There are many ways to check this, each with its own benefits and things to think about. 2, or Use this calculator to determine the flow rate of any nozzle at any operating pressure. Nozzles used for high velocity water CALL NOW : +44 (0) 1273 400092 www. Edelbauer1, A. 9) & K-79 (5. For the portion of the tank shell As per NFPA 15, for a typical water spray system, the design density of spray ranges from 4. pdf - Free download as PDF File (. Material. Nozzle protection on the booms can help to prevent damage. 6 metres) and less and for nozzle spray angles of 65’ to 140’, the Design Spray Profile is the same as the nominal spray angle. FUEL. 95 SPRAY | Intl. 26) (2. Inputs to this calculator are the nozzle type, current operating pressure and flow, desired flow or desired The Model E Spray Nozzle is just one of the industry-leading spray nozzles available to customers! Viking Model E, 3D Spray Nozzles are open-type spray nozzles designed for An earlier ICM News article discussing affects of nozzle type and size on spray coverage prompted a question from a farmer regarding nozzle selection. 5) as applicable and derived from design calculation of foam spray system. VIEW. 05 lpm are needed. ½ “ BSPT / NPT. The air flow can be calculated from the differential pressure (between the static pressures) according to the following equation: Q = K x 6 spray. co. For most purposes, it will be a root relationship with pressure. MV-A without Strainer , MV-AS with Strainer Code No. Drop size refers to the size of the individual spray drops that As per NFPA 15, for a typical water spray system, the design density of spray ranges from 4. Disclaimer Distribution Patterns: The distribution patterns are provided to illustrate the approximate water spray trajectories for various Reliable sprinklers at pressures of 7, 15 and 30 psi, unless otherwise noted. Using the appropriate wrench, remove the old spray nozzle and install the new unit. No resource found for selected filter. Looking for However, unlike the nozzle hole diameter, the literature studies have not provided a complete experimental data and a comprehensive comparison of the spray and atomization characteristics of different K factor nozzle hole injectors. cil 24 for nozzle sprays with a droplet diameter between 10 droplet velocity is the weighting factor to turn spatial distributions. Application of Equation (8) is thus limited to numerical modeling work where it is possible to calculate the local pressure at every MV nozzles are open, nonautomatic, directional spray nozzles that discharge a uniformly filled cone of medium-velocity water droplets. The discharge angle shall be 1400 (Degrees) and these shall be Calculators & Tools. All inserts are permanently marked with the angle of discharge and model. SSN-SNI-15 Max. 5 and can be used to calculate mass flow through an orifice. 5mm (3/8 inch), i. General Specification Nozzle APPENDIX K CALIBRATIONS, CALCULATIONS, & CONVERSIONS SPRAYER CALIBRATIONS AND CALCULATIONS1 TABLE K - 1. TN-25 Horizontal Spray Nozzle TN-25 Horizontal Spray TFP850 (Swedish) Horizontal Spray, HIGH VELOCITY NOZZLE DIMENSION In millimeters (Approximate) DISCHARGE CHARACTERISTICS Q =K √ P where P is supply pressure in Kg/sq. Eq. The minimum Spray Profile Gravity TION Nozzle A – Axial Distance B – Fixed Angle (Orientation) C – Radial Distance FIGURE 2: DESIGN SPRAY PROFILES (ALL K FACTORS) FIGURE 3: SPRAY Alternative K factors and angles K factor * Bore mm Spray Angles 18 ** 6. Let’s work through an example The flow rate for a given nozzle can be calculated by the following formula: n = Is a constant that depends upon the spray pattern type. 665. 5 For spray patterns refer to separate data Cone Spray Nozzle Problem Initial spray nozzle positioning inside the tower caused significant wall wetting. 10 Bar. 4 Kg. 4 bar). 1016/J. The design elements used within the spray nozzle to manipulate the movement of water through the spray nozzle will impact the discharge velocity of the water droplets and the discharge pattern’s reach or range. Spray nozzles with k-factors of 25, 45 and 65 manufactured by Angus Fire Company are used for areas below wind girder (top walkway). The nozzle names where based on earlier measurements [1]. 75 m3/hr, the nozzle pressures and spacing meet NFPA 15 standards, and the spray coverage is The Water Spray Nozzle is designed to protect fire expansion by spraying the water with fine particles like fog. Drop size refers to the size of the individual spray drops that Proceedings of 9th ICLASS Conference, July 13th – 17th, 2003, Sorrento, Italy Coupled calculation of cavitating nozzle flow, primary Diesel fuel break-up and spray formation with an Eulerian multi-fluid-model E. Regression analy sis results. gov. However, it must be emphasized that Reliable sprinklers must be installed according to the pertinent National and Local Fire Codes, Standards and Installation The Go-to People for spray nozzle solutions www. K-Factors calculated in Metric units; Factor-K is defined as following: K=Q/Sqrt(10*P), The k in the equation is called the k-factor for nozzle, and has a dimension [litre/min bar1/2]. Click here for a version designed for mobile browsers. Berg1, W. Modeling of incident Calculation of the impact force: F: Impact force (spray impact) A: Impact surface (impacted area) Parameters that may influence the impact. ) 0. For example, if you can share information like ‘K 26, 100 deg, 3/4 BSPT, brass finish’ with the supplier, you can hope to get the exact nozzle you need. The K factor is a unique constant for that particular K-Factor: K-Factor is a Discharge Coefficient (constant) calculated for working pressure between and including 1. So caution needs to be exercised when when reading K factors from data sheets i Spray Profile Gravity TION Nozzle A – Axial Distance B – Fixed Angle (Orientation) C – Radial Distance FIGURE 2: DESIGN SPRAY PROFILES (ALL K FACTORS) FIGURE 3: SPRAY COVERAGE VARIABLES NOTES • K-factors have tolerances of +/- 0. A nozzle may discharge into a vessel where the pressure is not atmospheric. 24) (1. 32 No. Q 2 = Q 1 (water) x 1 √SG Using the previous example: • Fluid sprayed is heavier than water and has a specific spray angle of the spray and the distance from the nozzle orifice. SprayMax Extended Range Nozzle - TCP/SMP; Albuz Broadcast Spray Nozzles; Albuz Orchard and Vineyard Spray Nozzles; Beluga HoseDrop Spraying System; Accessories; Test Data; Testimonials; Nozzle Calculator. 9 194 103. e. K-Factor Calculation Add to quote; 80˚, 95˚, 110˚, Blow off plug for nozzle having K factor 22 will have identification mark of 22. Thread size: 1/2” (15 mm) NPT Nominal K-Factors: Refer to the Approval Chart Glass-bulb fluid temperature rated to -65 °F (-55 °C) Overall Length: Refer to the Approval Chart spray nozzle material standards: Frame Casting: Brass UNS-C84400 Nozzle Factor & Spray Angle A B C A/F K 22 x 75° 49 21 30 K 18 x 80° 44 21 30 K 32 x 90° 49 21 30 K 26 x 100° 55 21 30 K 23 x 120° 49 21 30 K 42 x 115° 49 21 30 HV-AS C A B DISCHARGE CHARACTERISTICS Q =K P where P is supply pressure in K g/sq. 28 No. Each model has three intensity factor for a postulated nozzle circular corner crack for pressure loading for all nozzle configurations; • To verify a scaling approximation used for the 3-D FEM stress intensity factor Spray Nozzle 32c 1. All three types differ from each other based on its shape. If we are given the head pressure and k-factor, we can also calculate the k-factor or the pressure required with this formula. SPRAY ANGLE 750 80' 90' 100' K-FACTOR METRIC(US) 22 18 32 26 (1. The k-factor is Model No. For the 100 KL tank, the calculations show the tank dimensions, surface area, required cooling water flow rate of 612 lpm, and determination that 28 nozzles with a flow rate of 22. 1 Nozzle type. Finding the K-factor of your nozzle is a relatively simple process. Contents. 8 42 9. For Hollow Cone, see page 53 Spray angles:50° to 180° Flow Product Line Model 05 MV-A Brass (UL listed) Model 05 MV-E Aluminium Bronze (UL listed) Model 05 MV-B 316 Stainless Steel Description Open nozzles with an external deflector, that 1. Finish: Brass, Chrome Plated. As per NFPA-15 main pipeline strainer is required for system utilizing nozzle office diameter less than 9. Sulzer KnitMeshTM Wire Mesh Mist Eliminators Sulzer The maximum gas flow through a nozzle is determined by critical pressure. Equations The calculations on this page are for nozzles carrying a liquid as Directional Spray Nozzles, Open, Medium Velocity. 2 (K360) K-factor is a specialized open nozzle for use in tunnel fire protection deluge systems, providing an improved alter-native to traditional designs. Values are based on the assumption that the spray angle Spray Nozzle 32 b May 5, 2006 Approval Chart - Model E Spray Nozzles Base P/N1 SIN2 Nominal K-Factor (U. Drop size refers to the size of the individual spray drops that HV Nozzles are open (non-automatic) directional spray nozzles for use in water spray fixed systems for fire protection applications where a high-velocity water application may be required. Model No. AAAG 291CB. 200 mm: Hole outlet diameter tions on the water spray patterns. 8 65º 110º 125º 140º 26 ** 8. The key outputs are that the total water required is 56. 82) Kgs. 200 Brass Finish Nickel Chrome (optional) Specify Model, K-Factor, Spray angle and Finish. We can use this formula for any device for which we have a k factor and that can be a sprinkler, nozzle, water cannon, foam pourer and many other of foreign materials in the water way of the nozzle, which could interfere with the discharge of the spray nozzle. Size. C. 8) restricts the flow of water, while a larger k-factor (such as K22. For additional information see page 126. 25K4 along the orifice length direction from orifice inlet to the 3/4 of the worifice orifice In this work, the effects of the injector K factor on the spray characteristics have been investigated by using a high pressure common rail injection system and a constant The TY-FS with its 5-mm, heat-sensitive bulb is rated standard response. included water spray k-factor spray angle and angle metric (us) k-factor 75° 22 (1. is found to take on the form of a mushroom like structure which quickly breaks up. This online k factor calculator is able to find the flow, pressure or k factor from a sprinkler head or a water mist nozzle be using the K factor formula. The TY-FS with its 5-mm, heat-sensitive bulb is rated standard response. Natural In all nozzle types, the effects of spray pressure on sp ray angle were found to be highly significant (p ≤0. of water spray fixed systems for fire. The k-factor is dependent upon the orifice diameter of the sprinkler - a low k-factor (such as K2. But you can design a system This calculator determines the typical discharge vs flow rate of a sprinkler head. Modeling of incident widely used for that flow formula Q = K√P to calculate accurate sprinkler flow. Tatschl1 1. The following tests were performed on a spray patternator table. It also details the nozzle's design features including discharge of the spray nozzle. Gas flow calculations have an additional factor called expansibility. 0 Swedish-Sweden Data Sheet. With its ability to provide extended coverage, the Model TN-25 Nozzle allows for a single pipe to run the length of a tunnel, compared to traditional designs that How to Calculate K-factor for Sprinklers? The calculation of the K-factor is straightforward, though it requires precision. At a stand-off distance of 600mm the nozzle spray pattern is 3600mm wide. Care must be taken to ensure that the replacement spray nozzle is the proper model with the The K factor for sprinklers is NOT the same as a fitting K factor (which is used with a velocity2 element to calculate head loss). Where: K is the K-factor 4. Q (flow) = K-factor x (pressure)^0. 6 80. MV nozzle comes in various INCLUDED WATER SPRAY ANGLE FOR EACH K-FACTOR: 140°, 120°, 110°, 100°, 90°, 80° & 65° Brass finish, Chrome plated Brass (Optional) Medium Velocity Water Spray Nozzle Use this calculator to determine the flow rate of any nozzle at any operating pressure. Produces a high quality foam blanket for fast flame knockdown and security against reignition and burn back. Smaller nozzle apertures help reduce flow rates and hence application volumes while pressure also has a considerable influence on spray pattern. 34 K-Factor NFPA ISO/SI Each chart gives the K-factor for the nozzles for the allowed number of spray rows and spray angle for a given vessel diameter. ) Angle Listings and Approvals3Base P/N1 SIN2 Nominal K-Factor (U. 5) The discharge coefficient is a dimensionless number used to characterise the flow and pressure loss behaviour of nozzles and orifices in fluid systems. c d - discharge coefficient. 45 K-41 2. HD medium velocity nozzles come in a combination of k-factors and spray angles to offer effective spray pattern for cooling applications. Dultmeier Sales carries a wide range of sprayer nozzles for nearly any application treated with care to ensure a perfect spray over many hours. Resources Back. It represents the loss factor in hydraulic calculations, and for low flow velocities, the factor is quite insensitive to pressure differences. For best results,the storage as well as any further appropriate nozzle model and style, with correct K-factor, spray angle and material is selected for the job. 2017. Plated Approx. SPRAY ANGLE TERMS Four terms are commonly used to Tankcool Nozzle Page 3 of 3 8 April 2014 The right is reserved to vary or modify any specifications without prior notice. Using a standard crescent wrench, remove the old spray nozzle and install the new unit. Blow-off plugs are optional. p65warnings. The main pipeline strainer as per NFPA-15 is required for system utilizing nozzle orifice diameter less than 9. Care must be taken to ensure that the replacement spray nozzle has the proper The k-factor for a fire sprinkler is the discharge coefficient, or in normal human terms just relates to the amount of water that is permitted through the sprinkler. A higher K factor, logically will mean greater consumption. K Factor . 3 59 48. Name . Toll-Free: 1-800-881-4832 Local phone: 985-892-2778 I would imagine that the manufacturer might provide a K coefficient. And if it’s your own operation, perhaps expense matters most. Calibration is very tricky with these: any adjustment of the nozzle will alter the output and therefore the application rate. 54 K-30 2. For best results,the storage as well as any further shipment be made in original packing only. This tool helps you select the right nozzle for uniform and efficient coverage. 1lpm/sq. Solution Optimized spray nozzle positions indicated minimized wall wetting and Spray Nozzle 32c 1. Blow-off Plugs have identification mark with respect to K factor. K-FACTOR K20, K30, K37, K42, K58, K79 FINISH Natural Optional: For model TS - Ni-Cr plated For model TSS- Electroless Ni. 3. D3 PROTECTOSPRAY firefighting equipment pdf manual download. 26) 90° 32 (2. 8 Data Sheet. . MV Nozzle having K-factor 51 and less, and also K- FACTOR K20, K23, K32, K42, K58, K79 FINISH CN - Natural Brass finish, Nickel Chrome plated CNS- Natural finish WEIGHT (Approx. Next. 5 Bar. A single nozzle was operated by a ShurFlo 2088-594-154 positive displacement pump. Minimum operatiiong pressure for nozzle having Blow-off plug is 1. The spray nozzle deflector is identified with the U. Directional Spray Nozzles, Open, Medium Velocity. UL Certifed (21Kinds) K-Factor Calculation Flow Rate (LPM) 61. NOZZLE FACTOR & SPRAY ANGLE A B C (A/F) K 22 x 75° 49 21 30 K 18 x 80° 44 21 30 K 32 x 90° 49 21 30 K 26 x 100° 55 21 30 Note : One square is 200 X If we are given the head pressure and k-factor, we can also calculate the k-factor or the pressure required with this formula. 5. of water spray fixed systems Non-automatic, open orifice, directional spray nozzle; Model – HV-AS in Brass material with Copper strainer; Model – HV-BS in Stainless Steel with strainer; For high velocity water When mounted in pendent position acts as a window spray nozzle. Finish. 10 K-35 2. Since the nozzle flow rate is The K-factor is crucial in fire protection design because it helps engineers and designers understand how much water a sprinkler or nozzle will discharge at a specific The K-Factor Selector Want to quickly compare fire sprinkler k-factors across different design densities and sprinkler spacing? Easy. 2 GPM/√PSI (0. 5: Nozzle shaping: Smoothed by hydro-erosion: Mini-sac volume: 0. It’s calculated in imperial units for the United States by using the flow in gallons per minute (gpm) and the pressure in PSI. Whilst it is technically a unit-less constant it will depend upon whether metric or imperial units are being used for P and Q. Use this calculator to determine the flow rate of any nozzle at any operating pressure. Figure 67 Calculate Sprinkler K value As a leading Water Spray Nozzle Manufacturer, our HD range encompasses various types of nozzles, including medium velocity water spray nozzles, hydraulic, pneumatic or electric trims. m – depending on the application and hazard type. 2 110. cm. Spray nozzle bodies are permanently marked with the model number. /Sq. Nozzle size is a major factor when selecting a spray nozzle but it is not the only thing to consider. These nozzles when mounted in horizontal position with flow towards ground, a flat Model. 0 k-factor upright and pendent intermediate level sprinklers quick response If you’re a custom applicator, then perhaps time is the critical factor. 4 to 3. Wide Range of K-Factor and Spray Angle are available. Spray Nozzles can be fire sprinklers or water mist nozzles, hose The K-factor of a nozzle is a value that depends on the inner diameter of a sprinkler discharge hole. e HD Nozzle having K-factor 30 This article provides calculation methods for correlating design, flow rate and pressure loss as a fluid passes through a nozzle or orifice. That is why each type of fan has its own specific K-factor. In recent years there K-Rain nozzles are designed with the utmost attention to detail. 24 No. 5) This equates to a metric K of 80. 5. 8 59 11. 7 80˚, 95˚, 110˚, Fluid Delivery Time (FDT) Calculation Request Form; Training. How to Measure Spray Nozzle Droplet Size. 6 and 8. This refers to the flow rate of each spray nozzle on your sprayer. K – Factor (Metric) 23, 30, 37, 45, 53 & 72. The factor “K” is listed for each nozzle and has units of lpm/barx. K-FACTOR Model : WC-15 / WC-15S K23, K30, K37, K45, K53 & K72 Model : WC-20 / WC-20S K98, K120, K140 WEIGHT (Approx) Model WC-15 - 0. Increasing K factor advances the spray tip evolution and favors the formation of the shockwave which might be caused the accelerated nozzle inner flow. This directional spray nozzle discharges a uniformly filled cone of medium velocity water droplets, making it ideal for cooling and extinguishing fires on vertical, horizontal, Combination of different orifices & spray angle; K-Factor : Metric – 22, 30, 35, 41, 51, 64, 91 & 102; When a sprinkler K (imperial or metric) radio button is selected a calculator button is enabled to allow an appropriate sprinkler K value to be obtained from a published flow rate and pressure loss. Your DOI: 10. Blow off plug for nozzle having K-factor 22 will have identification mark of 22. They release a uniformly filled cone of Semantic Scholar extracted view of "Experimental study on the effect of injector nozzle K factor on the spray characteristics in a constant volume chamber: Near nozzle spray PNR manufactures a complete range of spray nozzles for industrial applications and many other products and systems designed according to the latest cutting-edge technologies. 5 bar (20 to 50 psi) End Fluid Delivery Time (FDT) Calculation Request Form; Training. All nozzles have radius shaped convergent inlet with the cylindrical throat, and Venturi nozzle also has a divergent part as an outlet. 1 Nozzle Sizing Information to Know Before You Begin; 2 Sprayer Nozzle Sizing for Different Applications. Here's the calculator I've created that Order Model E Spray Nozzles by first selecting the appropriate base part number for the K-Factor and spray angle desired. S. 9 33. v. 090 mm: Nozzle K factor: K = (d inlet – d outlet)/10 [use μm] = 1. plated SPRAY NOZZLE WATER SPRAY NOZZLE WATER SPRAY NOZZLE (SL-SPN) The Water Spray Nozzle is designed to protect fire expansion by spraying the water with fine particles like fog. Besides standard K-Factors, nozzles of intermediate K-Factors In fire protection engineering, the K-factor formula is used to calculate the volumetric flow rate from a nozzle. 4, K25. Spray Patterns The Design Spray Profiles for MV nozzle spray angles of 90 to 160 degrees are shown in Graphs A through M and apply to discharge The calculation above is for liquids. 1 32. Open nozzle for use in NFPA 16 foam-water sprinkler systems; B-1 Foam-Water Sprinklers- TFP840 (Swedish) Upright and Pendent, K-factor = 3. However, it must be emphasized that Reliable sprinklers must be installed according to the pertinent National and Local Fire Codes, Standards and Installation Gallons per acre = (5940 x GPM per nozzle) / (MPH x Nozzle spacing) This calculation is similar to the one above. In fire protection engineering, the K-factor formula is used to calculate the volumetric flow rate from a nozzle. The versatility of our nozzle line ensures that the professional has everything needed for a variety of residential and When replacing spray nozzles, use only new spray nozzles. The rules specify that, if a spray nozzle with an HD Fire Protect Medium Velocity Spray Nozzle discharges a uniformly filled cone of medium velocity water droplets, required for effective extinguishing and cooling purpose. 7 80. 6 (units are in (l/min)/bar 0. Then add the appropriate suffix for the desired finish and the suffix Use this calculator to determine the flow rate of any nozzle at any operating pressure. A summary of the relative performance characteristics for mist elimination is listed in Table 1. All spray nozzles are sensitive to mechanical damages. 180 Kg WINDOW CURTAIN NOZZLE SPRAY CHARACTERISTICS K23 X 250 300 600 900 1200 1500 Pressure (PSI) Y 7 1050 1350 2400 3300 3900 3900 15 1800 2100 2700 4050 4050 3900 Firetech Medium Velocity Water Spray Nozzles is a non-clogging open type directional spray nozzle designed for discharging a solid uniform cone spray of medium velocity water droplets in a pre-determined spray angle and K factor (metric): 18, 22, 30, 35, 41, 51, 64, 79, 91 and 102; Discharge angle (degrees): 90, 120, 140; Approvals – UL The orifice, nozzle and venturi flow rate meters makes the use of the Bernoulli Equation to calculate fluid flow rate using pressure difference through obstructions in the flow. When: q = flow k = nozzle discharge coefficient or k-factor for head p = pressure In fire protection engineering, the K-factor formula is used to calculate the discharge rate from a nozzle. 1 Factors that affect spray nozzle overlap; 4 Maintaining Droplet Since the advent of diesel engine high pressure common rail fuel system, for obtaining better fuel atomization effect, the pressure of injection has been increasing, and the maximum injection pressure of the common-rail system using the piezoelectric amplifier has reached 270 MPa, while the diameter of the nozzle spray hole continues to shrink, which leads Nozzle K-Factor Angle Material Product Code Ordering Information The following details should be specified when placing orders: 1) Product code 2) K-Factor 3) Spray angle 4) Material and Finish. 25K4/-12 is a convergent-divergent nozzle and has the same taper coefficient as H0. As Medium Velocity Spray Nozzle Jumbo Water Curtain Nozzle Integrated Deluge Skid DSK Inline Foam Inductor Inline Balanced Pressure Foam Proportioner HSW – Extended Coverage, Quick Response Sprinklers Horizontal Sidewall Sprinklers Horizontal Sidewall K-8 Sprinklers High Velocity Spray Nozzle | (3/4 Inch) High Velocity Spray Nozzle | (1 Inch) Directional Spray Nozzle with cone shaped spray pattern. Preview: Fire Sprinkler Discharge Calculations. In fire protection engineering, the K-factor formula is used to calculate the discharge rate from a nozzle. Clips are available in 1”, 1-1/4”, 1-1/2”, 2” ID etc K HV Spray Nozzles. Working Pressure 12 bar (175 psi) Effective Working Pressure 1. 2. Minimum operating pressure for nozzle having Blow-off plug is 1. Table 3. So caution needs to be exercised when when reading K factors from data sheets i 1. ca. 180Kg Model wc-ao - O. So caution needs to be exercised when when reading K factors from data sheets i discharge of the spray nozzle. 16 is used. The HD Medium Velocity Water Spray Nozzle is an open orifice, directional spray nozzle, designed for use in water spray fixed systems for fire protection applications. a. Care must be taken to ensure that the replacement spray nozzle has the proper model, style, and K-Factor. So caution needs to be exercised when when reading K factors from data sheets i 6 spray. B = Spray width, E = Nozzle distance, H = Installation distance of nozzles, NOZZLE FACTOR & SPRAY ANGLE A B C A/F K x º 9 0 K x 0º 0 K x 90º 9 0 K 6 x 00º 0 K x 0º 9 0 K x º 9 0 C HV-AS A B DIMENSION In millimeters (Approximate) DISCHARGE nozzle factor & spray angle k 22 x 750 k 18 x 806 k 32 x 900 k 26 x 1000 49 44 49 55 21 21 21 21 discharge characteristics pressure in psi 30 so go 120 150 175 120 ao 100 k26 80 1<18 so 40 f = friction factor L = nozzle hole length K ent = entrance loss coefficient determine in practice. Pipe Flow Expert re-calculates the The spray nozzle must be handled with due care. However, I'd argue that the pressure drop is probably less important than the effect the spray nozzle provides. com | 1. 800. FIGURE B WATER DISTRIBUTION DESIGN DATA Orifice Minimum Size Diameter No. 7 Bar 1 Bar 2 Bar 3 Bar 4 Bar 5 Bar 10 treated with care to ensure a perfect spray over many hours. 078 Corpus ID: 100271593; Experimental study on the effect of injector nozzle K factor on the spray characteristics in a constant volume chamber: Near nozzle spray initiation, the macroscopic and the droplet statistics calculation of the droplet diameter. critical pressure ratio is the pressure ratio where the flow is accelerated to a velocity equal to the local velocity of How do you calculate spray nozzle? The calculation of a spray nozzle involves factors such as desired flow rate, pressure, and spray angle. This document provides a water spray design calculation for a vertical vessel with a cylindrical or conical top. The spray angle for spiral nozzles is relatively stable over a wide range of pressures, while the spray angle for whirl nozzles tends to decrease as the pressure is increased. Spray Nozzles can be fire sprinklers or water mist nozzles, hose reel nozzles, water monitors and deluge fire system nozzles. Influence of the value of the flow coefficient μr on the pressure course in the injector nozzle space pi (a) and influence of the relative pressure losses Δí µí¼ ̄ through the spray holes Finding a Spray Nozzle. Nozzle spacing : 9 m2 (3m x 3m) Water density : 12 mm/min (l/min/m2) conversion factor that applies to the specific gravity of When spraying fluids other than water, specific gravity must be considered in the flow calculations. , K = nozzle constant (K-f actor) in metric US K factor = Metric K factor 14. K-Factor, and spray angle. , K= Specified and actual quantities for Spray C injectors of the ECN: Common rail fuel injector: Bosch 3-22: Number of holes: 1 (single hole) Hole nominal diameter: 0. 6 spray. This nozzle applies cooling and protection of ventilation by spraying finer water than sprinkler heads. The discharge from a sprinkler head or water mist nozzle can be calculated from the formula below: q = kp 0. K-Factor, spray angle, and temperature rating. Getting the right droplet size from spray nozzles is key for better application results. 2 30 8. water spray nozzles. To avoid interferences of the sprays, the nozzle orifices must be offset 5 – 15° to the pipe axis. Determining the Gallon per Minute (GPM) required of nozzles to achieve a given Gallon per Acre (GPA) Example 1 You want an output of 20 GPA. The formula is: K = Q/√P. The TY-FS Special is categorized as special response and has a 4-mm, heat-sensitive bulb. 1. 8 commercially available. Pressure / Flow The pressure / flow relation is calculated based on the formula: Q = K x √P Q = flow (l/min) K = nozzle K-factor P = water pressure at nozzle (Bar) K85 K77 K70 K60 K48 K45 K29 K25 K7 BAR l/min is found to take on the form of a mushroom like structure which quickly breaks up. Various NFPA standards address these situations in different ways and tion of Foam-Water Sprinkler and Foam Water Spray This example demonstrates how to apply the K-factor calculation formula to determine the K-factor for a specific sheet metal bending scenario. Blow-off Plugs have identification mark with respect to K factor. All our Clipon type spray nozzles are enhanced with different sized clips (made of spring steel) which provides strong clamping on riser/ header. 6 (where the units are in US gpm/psi 0. Several combination of different orifice sizes & spray angles; K-factor(Metric) – 18, 22, 26, 30, 35, 41, 51, 64, 79, 91 & 102; The K factor for sprinklers is NOT the same as a fitting K factor (which is used with a velocity2 element to calculate head loss). The formula calculates the discharge flow from the nozzle (fire sprinkler, water mist or deluge nozzle) in its most common form. 2 Sizing for Ag Liquids Heavier Than Water; 3 Nozzle Spacing and Spray Heights for Proper Coverage and Overlap . 5 bar (20 to 50 psi) End Connection 1/2” BSPT (1/2” NPT Optional) Included Water Spray Angle for Each K-factor 65°, 80°, 90°, 100°, 110°, 120° and 140° K-Factor Metric US K-22 1. 6 kg/m3 by Water spray systems design limitations. This calculation, however, is not always a matter of simple trigonometry. SPRAYER CALIBRATIONS AND CALCULATIONS Calculation Example Formula 1. 5 Bar) and maximum working pressure of 175 PSI (12 Bar). The velocity of the water droplets discharged from spray nozzles is not a factor for consideration of water spray system design within Specifications for Spray A injectors of the Engine Combustion Network: Common rail fuel injector: Bosch solenoid-activated, generation 2. 2 Spray Nozzle — A normally open water discharging device which, when supplied with water under pressure will distribute the water in a special, directional pattern peculiar to the particular device. Care must be taken to ensure that the MEDIUM VELOCITY WATER SPRAY NOZZLES Size: ½” BSPT or NPT Open orifice design used in deluge water spray system Non-automatic fixed pattern, external deflector Solid cone design spray profile (s/2) hv-26 meters 2,0 1,0 feet 0246 10 6 8 4 2 8 0 14 meters 2,0 1,0 1,0 3,0 2,0 4,0 hv-60 0 14 084 6 feet 2 2 4 6 10 8 12 0 axial dist ance from nozzle, meters axial dist Trusted Performance With a Cooling Spray The D3 Protectospray nozzles are open, non-automatic, and designed for water-spray-fixed systems. xlsx) based pressure drop/source pressure calculator - for fire fighting Model B-1 foam-water sprinklers discharge foam from overhead sprinklers then discharge water — similar to standard spray sprinklers. Gallons per acre = (5940 x GPM per nozzle) / (MPH x Nozzle spacing) This calculation is similar to the one above. . The design spray profile is the included angle of discharge for You can use this calculator for all three types of nozzles covered in standards: ISA 1932 nozzle, long radius nozzle, and Venturi nozzle. 24) 100° 26 (1. Calculate flow rate now. 18 No. The K factor is a variable that As the design and intent of specific water spray system may vary considerably, MV nozzle is made available in several combinations of orifice sizes (K-factors) and spray angles. But to lend a helping hand, nozzle interfere with discharge of the spray nozzle. Note: Sprinkler K factor coefficients are not the same as ‘K’ factors for standard fittings & valves. 2 mm 3: Discharge You can use this calculator for all three types of nozzles covered in standards: ISA 1932 nozzle, long radius nozzle, and Venturi nozzle. ) Angle Listings and Base P/N1 SIN2 Nominal K-Factor (U. 1 Q = n Orifice Size . for water spray system hydraulic calculation, you need to know how much spray nozzle to be used with spesific K-factor. TN-17 Horizontal Spray Nozzle TN-17 Horizontal Spray Horizontal Spray, Open, K-factor = 16. 1<98, 1<120, K 140 Model WC-15 - O. Nozzles and orifices are often used to deliberately reduce pressure, restrict flow or to measure flow rate. 4 lpm/sq. This is commonly used to apply to all nozzles but it is in fact erroneous to do so for each table. Spray Nozzle 32 b May 5, 2006 Approval Chart - Model E Spray Nozzles Base P/N1 SIN2 Nominal K-Factor (U. 1/2" Standard. They are effective in covering exposed surfaces in a The average Method determines the flow rate for each spray nozzle by above walkway PNR short body nozzle with a k-factor of 7. For axial distances of 2 feet (0. 3 33 8. In this equation, NP represents nozzle pressure. 2 LPM/√kPA) from nominal. 0 (used to compensate for calculation errors owing to a deceleration of fluid velocity caused by the inner structure of a nozzle, or to a decrease in flow Pipe network planning for NOVEC 1230. The nozzle is mounted in the pendent position to produce a solid cone discharge. It lists operating conditions such as temperature ranges and water pressures. 0 28 8. This can make a difference and so it’s important to understand the exponent specific to the nozzle. Method. High Velocity Water Spray Nozzles are internal swirl plate type open nozzles designed for use in fixed water spray commercially available. A change to the pipe diameter will result in a change to the matching equivalent fitting ‘K’ factor. The formula used to determine the K-factor involves the flow rate of water through the sprinkler head and the pressure at which the water is delivered. Spray Nozzles are designed to produce extremely uniform coverage. 8 43. 5 But what is k-factor for fire sprinkler systems? What is K-Factor? K-factor helps to calculate the discharge rate from fire sprinkler heads. 6 The nozzle H0. We need to know speed and nozzle spacing but we will also need to know the gallons per minute per nozzle. There isn’t a single formula, as it 22nd Conference on Structural Mechanics in Reactor Technology San Francisco, California, USA - August 18-23, 2013 Division II Figure 2. Spray Pattern High Velocity Water Spray Nozzle Model: HV-AS & HV-BS Unit 8, Calibre Industrial Park, Laches Close, Four Ashes, Wolverhampton, WV10 7DZ, United Kingdom T +44 1902 798 706 F +44 1902 798 679 E sales@lifeco-uk. Open nozzle for use in NFPA 16 foam-water SPRAY CHARACTERISTICS •Wide range of flow rates and spray angles • Fine atomization Spray patterns: Full Cone. 5 (barg) (1) and relates the flow rate to the water pressure. Spray nozzles can for example be fire sprinklers or water mist nozzles, hose The selection of spray nozzles involves consideration of several factors, primarily their ability to distribute water in a manner which allows the proper mechanism of extinguishment or control In this paper, the macroscopic and microscopic characteristics of diesel spray with elliptical and circular nozzles were investigated under an ambient density of 65. Blow off plug for nozzle having K-factor 22 will have identification mark of 22. Modeling of incident coverage of spray patterns as calculated from the included spray angle of the spray and the distance from the nozzle orifice. Model E Spray Nozzle deflectors are identified with the VK model number, nominal U. In fire protection system, the K-factor formula is used to calculate the volumetric flow rate from the fire sprinkler (sprinkler head), water mist nozzle, or deluge fire system nozzles. Suitable for a minimum working pressure of 7 PSI (0. Back. Blow-off plugs are optional and are FM Approved. 01) (Table 6). For different K factor nozzles, the spray tip penetration (STP) evolution I would imagine that the manufacturer might provide a K coefficient. 54) 80° 18 (1. SPN Flow Rates and Dimensions Flat FanFan, 15°, 25°, 35°, 40° and 50° Spray Angles, 1/ Size Nozzle Number Available Spray Angles K Factor Litres per minute @BAR Deflection Angle @ SprayAngle Dimensions (mm) Metals Only 0. u SPN Deflector Flat Fan. spray-nozzle. When: q = flow k = nozzle discharge coefficient or k-factor for head p = pressure SprayWare is a collection of tools and resources designed specifically to assist you with nozzle selection and spray system optimization. the number of the nozzle is based on the size of the equipment you want to protect. 1 Sizing for Ag Chemicals and Water Solutions; 2. K Factor Chart. 3 150. There are two types of systems namely high velocity and medium velocity systems. Choice of nozzle flows according to K-factor (orifice) required. Natural Brass finish, chrome plated brass or electroless brass finish [optional) Natural finish for WC-15S & wc-aos Specify Model, K factor and Finish MAINTENANCE The spray nozzle must be handled with due care. 04. If we are given the head pressure and k-factor, we can also calculate the k-factor or the pressure This online k factor calculator is able to find the flow, pressure or k factor from a sprinkler head or a water mist nozzle be using the K factor formula. You can use the following formula: K = flow/√NP. txt) or read online for free. Some basic issues to be considered during the design of a water spray system are listed below. 2745 The spray nozzle must be handled with due care. 630. How to Use: Input the nozzle specifications, desired coverage area, and operating conditions to get accurate coverage estimates. Maximum Working Pressure. 4 17. The minimum operating pressure of any nozzle protecting an outdoor hazard is stipulated at 20 psi (1. This K-factor takes into account the specific properties of the inlet ring of the fan. For different K factor nozzles, the spray tip penetration (STP) evolution interfere with discharge of the spray nozzle. K-factors can be determined by using the following equation: Determining the K-Factor of Your Nozzle. 57 K nozzles and aCCessories AutomAtic SprinklerS n ozzles and accessories Fire ProTecTion general Products catalog TyCO FIre & BUIlDInG prODUCTS Always refer to the product’s Technical Data Sheet for a complete description of all Listing and Approval criteria, design parameters, installation instructions, care and maintenance guidelines, and our limited warranty. Model B-1 foam-water sprinklers discharge foam from overhead sprinklers then discharge water — similar to standard spray sprinklers. For MVK41, the Fluid Delivery Time (FDT) Calculation Request Form; Training. 4: Fuel injector nominal nozzle outlet diameter: 0. Most of the cases manufacturers use specialized flow calculation software for pipe network planning. Description: Determine the spray coverage area based on nozzle type, flow rate, and spray angle. Blow-off plugs are optional and are not UL listed. Inputs to this calculator are the nozzle type, current operating pressure and flow, desired flow or desired pressure. lifeco-uk. NOZZLE SPRAY PATTERN The term “Spray Pattern” describes the location and spray density of the liquid emitted from a nozzle. m to 20. The k-factor for a fire sprinkler is the discharge coefficient, or in normal human terms just relates to the amount of water that is permitted through the sprinkler. You can request the K-factor of your fan from your supplier. Sprinklers K factor should be chosen by analyzing the hazards, design density, Easy to use Excel (*. The spray pattern for the K Series nozzles is effectively 2400mm wide and has an included angle of 150° at a stand-off distance of 300mm. A further tip is to ensure that the K factor is in the correct units. 87 K-51 3. hpjxc opdi hbiqc rfqzq xaihlk fekti ogelv aulte gnru kycs