Flexible Duct CalculatorA metal duct calculator does not account for the additional resistance that is common with flex duct. * include fittings in the Duct TEL. 24 KB; File Count 1; Create Date May 17, 2021; Last Updated January 31, 2022; Flexible Duct Calculator. Floor Registers & Grilles; Baseboard Registers & Grilles ; Sidewall/Ceiling Register & Grilles. HVAC/Mechanical Engineering. 059 : inWg/100ft: Rectangular duct: "x ": 686: FPM: 0. The Duct Size Calculator is a quick reference tool for approximating duct sizes and equivalent sizes. Duct Calculator. Home Duct Sizing Chart. place on a ventilation duct run. A typical 15' linear run of flex, is 80' equivalent length. Duct size - They used 6″, 8″, and 10″ diameter round ducts. ATCO FLEX DUCTULATOR. my on October 29, 2022 by guest Second Edition Herbert W. place on a ventilation duct run. Flexible Ducting Calculator, Zip Code . All your cables, for all your projects. What Is the Function of the Collecting Duct?. This Duct Size Calculator's data is based on flexible duct laying in a straight line on a level surface,and nearly fully stretched (4% compression. In the next article, we'll see how friction rate translates to duct sizes and how a duct sizing calculator works. Pressure drop in circular duct Solution STEP 0: Pre-Calculation Summary Formula Used Pressure Drop = ( (0. calculations, result in overall balanced system performance. edu on October 31, 2022 by guest Duct Weight Calculator This is likewise one of the factors by obtaining the soft documents of this duct weight calculator by online. Flexible Duct Friction Loss Calculator. Daves World Home within Flex Duct Sizing Chart24391. Note the difference in airflow/cfm between the two charts. Use the online duct calculator (see References) and calculate the needed flex duct size. Feb 14, 2019 - Cfm Per Duct Size Chart Sizing Duct Ducts Ductwork Air Flow Flex intended for Flex Duct Sizing Chart Flex Duct Sizing Chart Unique Hvac Duct . A duct sizing calculator may then be used to determine appropriate duct size. 14″ round duct is less than ideal because the friction loss will be greater than 0. A metal duct calculator does not account for the additional resistance that is common with flex duct. Duct banks are typically installed underground for large buildings that require substan. The flex duct size may be different than the hard duct that runs to that room. Fort Worth, Texas 76118 (817) 595-2894 [email protected] Grilles, Registers and Diffusers. Before calculating the appropriate duct size, individuals will need to determine the required cubic feet per minute for a given room. Flexible Duct Friction Loss Calculator/Flex Duct Calculator Tool # 34-3453-01. Atco Rubber Products. In this video we will show some best practices on how to use a duct calculator for various duct materials. Duct Design 5 — Sizing. /100 ft for low- pressure ductwork. As an example, the following tables show estimated airflow/cfm with a metal duct calculator set to a friction loss of 0. Hart & Cooley - Air Duct Calculator Flexible Duct Friction Loss Calculator 1. Through this tool you can plan your order more efficiently to help you minimize your shipping costs. Enter Friction Loss (inches of water), Duct Airflow (CFM), Duct Length. The connector union is designed to easily fit round pipes of the same diameter and is crimped at both ends for a reliable, trouble-free connection. We have provided a graphical representation of a tractor trailer to help you. This software is used in sizing ducts in HVAC systems like air conditioning, ventilation or exhaust duct networks. xls - Free download as Excel Spreadsheet (. Air velocity in a duct can be calculated in SI units vm = qm / Am = qm / (π (dm / 2)2) = 4 qm / (π dm2) = qm / (am bm) (2) where vm = air velocity (m/s) qm = air flow (m3/s) Am 2) dm = diameter of duct (m) am = width of duct (m) bm = width of duct (m) Example - Air Flow Velocity in a Duct. Blower CFM: Max Friction Rate (in w. Including both SuperHeat and SubCooling of R410a and R22; a Duct Calculator that calculates CFM, Pressure Drop and Sizing for - Rectangular Metal, Round Metal, AND Round Vinyl Flex. in/wg Duct TEL : ft. Since this is a very complex measurement, we recommend leaving friction loss rate calculations to a professional. 1" FR for all of the duct work means you will loose over. txt) or view presentation slides online. How to calculate square to round sizes in ductwork. New ductwork installation costs $2,400 to $6,600 for a house without HVAC ducts. On most projects, HVAC flexible ductwork is located in designated chases that maximize the efficiency of the airflow. Since 1961, ATCO Rubber Products has established trust by keeping its promises and. Before calculating the appropriate duct size, individuals will need to determine the required cubic feet per minute for a given room. 95 Trane TD1 Ductulator with Sleeve, Duct Sizing Calculator $14. Air Friction chart for flex ducts. The Duct Size Calculator is a quick reference tool for approximating duct sizes and equivalent sizes of sheet metal duct vs. Rectangular Duct Dimensions: Side a (in. Always stagger take-off ducts by 12" to. Provides the following information with one setting:- Friction per 100 Feet of Duct-Velocity - FPM/Air Volume - CFM- Round Duct Size/Rectangular Equivalent Dimesions - InchesSize: 5" x 7. For the purposes of calculating surface areas for ductwork it's sufficient to use just 3 decimal places, so if your calculator doesn't have a Pi button, or you . Friction Loss (inches of water) 0. They are the place where urine is first formed. Use insulated duct or duct board in unheated spaces. Duct Calculator is a powerful tool that provides access to duct calculation and sizing capabilities either as a standalone Windows program or from within the Autodesk Building Mechanical design environment. Flexible Duct Friction Loss Calculator 1. 10 friction rate on a duct calculator for sizing, and assume a six-inch duct delivers 100 cfm. The majority of homeowners report paying around $2,900-3,900 for a complete replacement or installation of new insulated ducts, in a 2000 sq. 05" on most metal duct calculator Round metal pipe =. Example: 10-inch round duct has a radius of 5 inches. Δh = friction or head loss (inches water. Flex And Round Duct Sizing Charts CFM (4,6,8,10,12. Pull the airflow vertically to hit the friction loss line at 0. Last take-off run to be located 12" - 18" from end. In fact, your system needs a specific air pressure in the ductwork to properly distribute air. Flexible Duct Friction Loss Calculator Spreadsheet. The variation between the temperature of the. Cost to replace ductwork by house size - chart. Round duct and rectangular duct comparison. Ductwork Portion of HVAC Costs Flexible duct multipliers assume that the duct is installed fully . ID is the abbreviation for internal (or inner) diameter. ASHRAE Releases New Duct Sizing Calculator. Download DuctMate software for air duct design. The calculator assumes the duct is installed in the uncompressed condition. Fancy, decorative vents can cost as much as $70-120. Use ASH RAE 2013 Flex Compression. Type 9M flexible duct is backed by a 5 year warranty. The Duct Size Calculator is intended for use as a quick reference tool for approximating duct sizes and equivalent sizes of sheet metal duct versus flexible duct. The Flexible Duct Calculator uses the applicable test data in consideration of the acceptable practice of duct installation as specified in the Air Diffusion Counci's Flexible Performance & Installation Standards Green Book. Duct size – They used 6″, 8″, and 10″ diameter round ducts. 6*Friction factor in duct*Length of the duct*Mean Velocity of the air^2)/ (Diameter of Circular Duct/4)) Pf = ( (0. Flexible Duct Calculator. So what is an Air Duct Calculator (Ductulator)? MicroMetl has produced a high quality video demystifying it's purpose and functionality. Professionals usually use the duct sizing rule of thumb that states a one-ton capacity air conditioner should be installed every 500 feet of air-conditioned floor area. For the main trunk a 16" metal trunk line will flow 1210-CFM at 867-fpm velocity. These tests were conducted in three different compression ratios: maximum . Features Values can be selected quickly by scrolling. If you’re using flex round ducts, you need ducts with a 16-inch diameter. We have provided a graphical representation of a tractor trailer to help you better visualize the process. USA: A new ASHRAE duct sizing calculator enables air distribution system designers to accurately size ducts, especially flex ducts, . Simply select the Thermaflex product you're installing, as well as the friction loss and volume present in the system - the app will calculate the velocity of the system and display the appropriate size Thermaflex duct for your application. Ductmate calculator is a comprehensive software that you can find sizes for rectangular and round duct besides you can calculate duct friction loss or air velocity through the duct. DUCT INCORPORATED offers assistance for those who need help designing a piping system. Since 1961, ATCO Rubber Products has established trust by keeping its promises and delivering at a high level of excellence time and again for its customers. This calculator is intended for use with all Quietflex flexible ducts. AIR DUCT SLIDE RULE CALCULATOR. Your overall ducting size comes from combining the size, CFM, and friction loss of your home—meaning it ends up being a pretty. According to Cleveland Clinic, a dilated pancreatic duct is a common symptom of pancreatitis, a chronic inflammation of the pancreas. The calculator uses information from ASHRAE. * include fittings in the Duct TEL Enter either: CFM: or Duct Size: CFM: Convert. Thermaflex and ARCOM Sign Agreement to Customize Product Resources for Specifiers. Enter the flow rate of the air carried by the duct in cubic feet per minute. This manufacturing process produces a flexible duct with the highest performance credentials of any flexible duct. The calculator uses information from ASHRAE Research Project 1333, HVAC Duct Efficiency Measures, and was developed with funding support from ASHRAE and ADI. You might not require more time to spend to go to the book creation as well as search for them. The System Pressure Calculator helps you work out the resistance in pascals that elements such as spiral duct, bends, duct heaters etc. why ductmate ? Allows easy recalculation of all values. Enter Friction Loss (inches of water), Duct Airflow (CFM), . Based on Friction Loss: Based on Duct Diameter: Equivalent Rectangular Duct: Equivalent Round Duct Diameter: Maximum Recommended Supply Velocity: 4. Buy the ACCA Manuals on Amazon* Other articles in the Duct Design series: The Basic Principles of Duct Design, Part 1. Fort Worth, Texas 76118 (817) 595-2894 [email protected] Buy the ACCA Manuals on Amazon* Other articles in the Duct Design series: The Basic Principles of Duct Design, Part 1. The difference between the two is that long-term sag represents and extreme case. Many designers rely, unfortunately, on the flexibility of variable air volume. 059 : inWg/100ft: Rectangular duct: "x ": 686: FPM: 0. Flexible Duct Friction Loss Calculator/Flex Duct Calculator Tool. Air-duct calculators are very useful tools to use when sizing duct HVAC Flexible Duct Calculator Based on Friction Loss: Enter Friction Loss (inches of water), Duct Airflow (CFM), Duct Length and the number of bends. How to Calculate Residential Duct Size. Air Duct Calculator - Free download as Excel Spreadsheet (. The Duct Size Calculator is a quick reference tool for approximating duct size and equivalent sizes of sheet-metal duct and flexible duct. Windows is a duct sizing calculator that can replaces cardboard duct calculators. 11 ductwork tools hvac flex duct ductulator trane hvac sizing calculator trane air duct calculator concrete slide ruler cool refrigeration tools engineering slide chart. Based on Friction Loss: Based on Duct Diameter: Equivalent Rectangular Duct: Equivalent Round Duct Diameter: Maximum Recommended Supply Velocity: 4. To properly size your ducts , you need to consider things like the square footage of your house and individual rooms. In order to maintain velocity, reduce duct size. HVAC Duct Calculator Use Our ServiceTitan Ductulator to Calculate Proper HVAC Ductwork Sizing Duct Type Metal Flex Size by Friction rate Friction Loss rate View Common Rates per 100 ft (in/wg) # of 45° Bends # of 90° Bends # of 180° Bends Duct TEL * include fittings in the Duct TEL Enter either Duct Size Duct shape Convert Here Round Diameter. TRY OUR MOST POPULAR DUCTULATOR. On the other hand, for the hot air ducts, one admits 50% to 75% of the cold air flow according to thermal loads. A new duct-sizing calculator from ASHRAE and the Air Distribution Institute (ADI) allows HVAC air-distribution-system designers to size ducts more accurately, especially flex. If you are replacing rectangular ducts with round. Flex Duct, Ductboard, or Metal Duct Options. Polyester R6 Rip-Stop Flexible Air Duct Part # Q380 Item # 5138470 Mfr. Windows is a duct sizing calculator that can replaces cardboard duct calculators. duct-weight-calculator 3/3 Downloaded from accreditation. HVAC Duct Calculator Use Our ServiceTitan Ductulator to Calculate Proper HVAC Ductwork Sizing Duct Type Metal Flex Size by Friction rate Friction Loss rate View Common Rates per 100 ft (in/wg) # of 45° Bends # of 90° Bends # of 180° Bends Duct TEL * include fittings in the Duct TEL Enter either Duct Size Duct shape Convert Here Round Diameter. Circular Duct Sizing (SI Units). duct transition calculator. How to Size Duct in the Field. Air Duct Calculator Sheet2 'Air Duct Calculator'!Print_Area. Select the duct type on the pull down menu. Over the years, ATCO has always held true to developing and delivering the highest quality products available. 6*f*L*Vmean^2)/ (d/4)) This formula uses 5 Variables Variables Used. Friction Loss (inches water) Duct Airflow (CFM) Duct Length (feet) 90 Bends (quantity) 45 Bends. - Insert duct dimensions ( Width and height) This hvac duct sizing calculator is very simple and it calculates the duct friction loss value and air velocity inside the duct. You can either square root the number to get the dimensions of a square duct. You can use these ASHRAE duct sizing charts if you're an HVAC technician or a DIY enthusiast: CFM Sizing Chart For Flex Round > Chart (60-775 CFM) 8-Inch Rectangular Ducts Size Chart (90-1,500 CFM). Insulated Flexible Duct R6 Silver Jacket The Master Flow 6 in. The Importance of Proper Duct Sizing. When it comes to sizing ductwork, you probably rely on a ductulator (or its digital equivalent) to determine the dimensions for your ducts. FLEXIBLE DUCT DIAMETER (mm) 44 l/s Ø 150 92 l/s Ø 200 170 l/s Ø 250 275 l/s Ø 300 385 l/s Ø 350 503 l/s Ø 400 636 l/s Ø 450 785 l/s Ø 500 950 l/s Ø 550 REVISION 14/04/03 B-DS 1 FLEX. 05" on most metal duct calculator. Step Two - Select the duct size from the table that can carry that volume . Includes sizing for metal ducts, and for flexible duct when compressed at 4%, 15%, and 30% straight line compression. – Group 11, Flex-duct Junction Boxes and Radius Bends. The specific measurement will depend on the type of hose in. 1995) provide pressure drop calculations using such . Temperature Drop Calculator for Air Ducts. The Duct Size Calculator is a quick reference tool for approximating duct sizes and equivalent sizes of sheet metal duct vs. wg as the maximum airflow for 14″ round ducts is around 1027 cfm. Abbeville, SC (July 20, 2016) — Thermaflex®, the leader in non-metallic flexible duct, and ARCOM, the leader in specifications, are pleased to announce that Thermaflex’s Read More. Flex duct is typically available in insulation values of R-4, R-6, and R-8. Your contractor will utilize a duct size. ) The data provided on the Ductulator. A new duct sizing calculator from ASHRAE and the Air Distribution Institute (ADI) allows HVAC air distribution system designers to more accurately size ducts, especially flex. Step 1: Calculate Truck Capacity. Your contractor will utilize a duct size calculator to factor in all of these measurements, multiply by 100, and divide by the total length of your ductwork. The Pressure drop in circular duct formula is defined as the pressure drops in the direction of flow, the pressure drop is due to Fluid friction or Momentum change due to change of direction. for more information, or check out our full article on range hood duct sizing here. Easy to use Online Ductulator / Duct Size Calculator, metric or English units. The Flexible Duct Calculator uses the applicable test data in consideration of the acceptable practice of duct installation as specified in the Air Diffusion Counci's Flexible Performance & Installation Standards Green Book Kit Includes: Flexible Duct Calculator These HVAC tools are used for assistance in sizing ductwork for HVAC systems. Open the SP Calculator. The area of rectangular ducts is calculated as x*y where x and y and the length of the sides of the ducts. 9781622709830 Duct Fitting. LV and MV cables up to 33 kV with current capacity in. Including both SuperHeat and SubCooling of R410a and R22; a Duct Calculator that calculates CFM, Pressure Drop and Sizing for - Rectangular Metal, Round Metal, AND Round Vinyl Flex. The Flexible Duct Calculator uses the applicable test data in consideration of the acceptable practice of duct installation as specified in the Air Diffusion Counci's Flexible Performance & Installation Standards Green Book Kit Includes: Flexible Duct Calculator These HVAC tools are used for assistance in sizing ductwork for HVAC systems. sizing? • ASHRAE HoF Chapter 21. 05" on most metal duct calculator Round metal pipe =. Flexible Duct Friction Loss Calculator/Flex Duct Calculator Tool # 34-3453-01. Ductmate calculator is a comprehensive software that you can find sizes for rectangular and round duct besides you can calculate duct friction loss or air velocity through the duct. This item: Air Duct Sizing Calculator/Slide Rule - Flexible Ductwork $13. Minimum friction loss will only be obtained. 10, Flexible Duct Friction Loss Calculator. For Example: You have a 2-ton system. Flexible Duct Calculator - HVAC - Based on Friction Loss: Enter Friction Loss (inches of water), Duct Airflow (CFM), Duct Length and the . First, select the duct shape and the unit of measure (cfm, inch, fpm), then enter. duct-fitting-equivalent-length-calculator 1/11 Downloaded from voice. Duct Design 2 — Available Static Pressure. Enter Friction Loss Per 100' of duct (inches of water), Duct Airflow (CFM), Duct Length and the number of bends. For the more duct formulas download this All HVAC. Flexible Duct Calculator. duct-weight-calculator 1/3 Downloaded from accreditation. Enter the temperature of the air entering the duct Line 2. Rectangular Duct Sizing (SI Units). If "ASHRAE 2013" is selected, Flexible roughness is 0. Air Duct Sizing Calculator/Slide Rule. 1” and a flex duct specific calculator using the same friction loss. Flexible Duct Calculator. FLEXIBLE DUCT DIAMETER (mm) 44 l/s Ø 150 92 l/s Ø 200 170 l/s Ø 250 275 l/s Ø 300 385 l/s Ø 350 503 l/s Ø 400 636 l/s Ø 450 785 l/s Ø 500 950 l/s Ø 550 REVISION 14/04/03 B-DS 1 FLEX SIZING FLEXIBLE DUCTWORK FLEXIBLE DUCT SIZING GUIDE. 06" on most metal duct calculator s FIELD DUCT SIZING CHART Rectangular sheet metal duct =. 65 Air Duct Sizing Calculator $12. If you're using flex round ducts, you need ducts with a 16-inch diameter. Cable Sizing Software - select, size and manage your power cables using myCableEngineering. Provides the following information with one setting:- Friction per 100 Feet of Duct-Velocity - FPM/Air Volume - CFM- Round Duct Size/Rectangular Equivalent Dimesions - InchesSize: 5" x 7. This software is used in sizing ducts in HVAC systems like air conditioning, ventilation or exhaust duct networks. Calculating the friction loss rate depends on the length of each duct as well as the number of coils, grills, filters, registers, and turns in the ductwork. For example, if you have 10 feet of straight ductwork and two elbows, your TEL would be (10 x 2) + (2 x 4) = 28 feet. All flexible ducting hoses have an ID size. Δh = friction or head loss (inches water gauge/100 ft of duct) de = equivalent duct diameter (inches) q = air volume flow - (cfm - cubic feet per minute) For rectangular ducts the equivalent diameter must be calculated. The application calculates equivalent rectangular duct. Ductwork - Seal Classes - Ductwork air leakage classes. Use ASH RAE 2013 Flex Compression. How to Use a Duct Calculator. If you are replacing rectangular ducts with round ducts, you will have to determine the equivalent diameter of the round ducts. Enter Friction Loss (inches of water), Duct Airflow (CFM), Duct Length and the number of bends. The flexible duct connector is made from 30-gauge galvanized steel for. why ductmate ? Allows easy recalculation of all. Home Duct Sizing Chart. 24 KB; File Count 1; Create Date May 17, 2021; Last Updated January 31, 2022; Flexible Duct Calculator. Use the online duct calculator (see References) and calculate the needed flex duct size. * include fittings in the Duct TEL. Select the duct material from the drop-down list (most duct sizing tools are typically based on galvanised steel ducting by default) Enter the air flowrate in litres/second. We can help determine the correct pipe size and . com HR inquiries: [email protected] There'll be a two-digit even number in the model number. Take this number and multiply by 1,000. Home; Friction Loss Calculator; 1-800-255-FLEX (3539) 3663 E Wawona Ave, Fresno, CA 93725. Friction Loss Duct Airflow Duct Length 90o Bends 45o. Air duct sizing calculator/slide rule - flexible ductwork: Industrial & Scientific : Event DESCRIPTION The Flexible Duct Calculator uses the applicable test . Small junction box sizes are described in this guide to replicate what a production builder would likely build in an HVAC system where the . Home; Friction Loss Calculator; 1-800-255-FLEX (3539) 3663 E Wawona Ave, Fresno, CA 93725. (Input information may generally be be obtained . Duct Diameter (round) Duct Airflow Duct Length 90o Bends 45o Bends 180o Bends Friction Loss Per 100' of duct Duct Velocity (inches) (CFM) (feet) (quantity) (quantity) (quantity) (inches of water) (FPM) 20 5000 100 0. charts or a “duct design calculator”. 10 friction rate on a duct calculator for sizing, and assume a six-inch duct delivers 100 cfm. Spiro-Flex Flexible Duct · Rigid Steel Duct. Round duct and rectangular duct comparison. Replaces / Supersedes: Flex Duct Flexible Duct Calculator 34-3453-01 34345301 . The Wine Guardian ductwork calculator is designed to guide installers to know acceptable ductwork configurations for proper installation. The rectangular duct therefore requires more metal for its construction, this adds more weight and costs to the design. The circuit of the cold air ducts is calculated for 100% of the necessary flow. The output also includes air velocity when air static loss is an input (friction method) or it includes air static loss when velocity is an input (velocity method). Duct Velocity Calculator (Air Velocity = Airflow / Duct Cross. The Duct Size Calculator is a quick reference tool for approximating duct sizes and equivalent sizes of sheet metal duct vs. Based on Friction Loss: Enter Friction Loss (inches of water), Duct Airflow (CFM), Duct Length and the number of bends. Flexible Duct Friction Loss Calculator. Pressure drop in circular duct Solution STEP 0: Pre-Calculation Summary Formula Used Pressure Drop = ( (0. Duct Design 3 — Total Effective Length. The area of round flex ducts is calculated as π*R 2 where R is the radius of the duct. (Input information may generally be be obtained from design documents or field measurements) Line 1. The area of round flex ducts is calculated as π*R 2 where R is the radius of the duct. Enter airflows, and click the "Calculate" button for results. Duct type: Metal Ductboard Flex Size by: Friction rate Velocity Friction Rate: per 100 ft. Including both SuperHeat and SubCooling of R410a and R22; a Duct . To use our duct size calculator, simply enter the maximum CFM of your blower, then click “Calculate. Duct Design Calculator Wheel 2013-05-01 DUCT DESIGN CALCULATOR WHEELThis duct calculator is the technicians favorite. Pressure drop in circular duct Solution STEP 0: Pre-Calculation Summary Formula Used Pressure Drop = ( (0. Duct Calculator is a powerful tool that provides access to duct calculation and sizing capabilities either as a standalone Windows program or from within the Autodesk Building Mechanical design environment. CFM measures the amount of air that will be moved into the room. Read Duct Diameter (inches) and Duct Velocity (FPM). Select altitude from World Locations database. Air-duct calculators are very useful tools to use when sizing duct HVAC Flexible Duct Calculator Based on Friction Loss: Enter Friction Loss (inches of water), Duct Airflow (CFM), Duct Length and the number of bends. Diameter converter, which allows converting circular to equivalent rectangular ducts. Polyester R6 Insulated Flexible Air Duct Part # JMHP50R604 Item # 2373875 Mfr. Aeroduct ® flexible ducts are UL 181 classified and are available in insulated and un-insulated models, both of these give high degree of flexibility, which permits us to easily connect in any preferred position and save costs, where fitted and fabricated ducts would be highly difficult and costly to install. It includes rectangular and round sheet metal and flexible duct sizing . Based on Duct Diameter: Enter Round Duct Diameter (inches), Duct Airflow (CFM), Duct Length and the number of bends. HVAC Engineering Design. That’ll give you the total area of the duct. With a complete line for residential and commercial heating, ventilation and AC applications, ATCO builds products that are built to last. Air Duct Calculator estimate the cost of installing ductwork in your home. 12 December 2020 Off By The Engineering Community. Thermaflex® Duct Sizing at Your Fingertips of duct installation as specified in the Air Diffusion Council's “Flexible . At that point, I yielded the floor to Chris and he spoke more about that Texas A&M research on . Flexible duct sizing:All cardboard ductulators are based on a fixed absolute roughness of anything between (0. Enter Friction Loss (inches of water), Duct Airflow (CFM), Duct Length and the number of bends. 05″ to get an accurate calculation. To calculate the TEL of your ductwork, simply add up the length of all straight sections of ductwork and multiply by 2. pressure for duct calculation and testing rather than using only static pressure. To properly size your ducts , you need to consider things like the square footage of your house and individual rooms. 24 KB; File Count 1; Create Date May 17, 2021; Last Updated January 31, 2022; Flexible Duct Calculator. This calculator estimates the temperature drop (or rise) of air flowing in a duct. Flexible Duct Friction Loss Calculator Spreadsheet. Duct Design 3 — Total Effective Length. This research included tests on three sizes of flexible duct: 6”, 8”, and 10”. Flexible Duct Calculator. That's a little more than 7 mph (miles per hour). Duct Calculator is a powerful tool that provides access to duct calculation and sizing capabilities either as a standalone Windows program or from within the Autodesk Building Mechanical design environment. Oversized ducts could cause your HVAC system to . - Insert duct dimensions ( Width and height) This hvac duct sizing calculator is very simple and it calculates the duct friction loss value and air velocity inside the duct. Always stagger take-off ducts by 12" to maintain pressure. The table above shows the amount of sag for the different compression percentages and duct sizes. Note the difference in airflow/cfm between the two. Spiro-Loc Rigid Steel Duct · Semi Rigid Aluminium Duct. Adjustable Absolute Duct Roughness. Adjustable Absolute Duct Roughness. Example: 10-inch round duct has a radius of 5 inches. This Imperial Connector Union is used to effectively connect two lengths of 6-in flexible duct or rigid round pipe together. Rectangular to Round Conversion. st louis county absentee ballot application; lgbtq center monkeypox vaccine; pancreatic cancer miracle cure; humana otc catalog. SUPPLY OR RETURN DUCT SIZE/CAPACITY. Professionals usually use the duct sizing rule of thumb that states a one-ton capacity air conditioner should be installed every 500 feet of air-conditioned floor area. PRO's duct calculator will help you estimate the required duct size of the ventilation system for quality air exchange in the room. 4 Rules for Flexible Ducts that Remodelers Need to Know. 10 Duct Airflow (CFM) 5000 Duct Length (feet) 100 90o Bends (quantity) 45o Bends (quantity) 180o Bends (quantity. Cube Calculator. Our easy-to-use duct calculator application allows HVAC installers to determine the best flexible duct size recommended for their installation project. California Duct Sizing Chart. This is a handy tool when deciding what size duct you want to use for your application. 06" on most metal duct calculators FIELD DUCT SIZING CHART Flexible Duct Round Metal Pipe 750 1200 14" 16" Design Airflow 50 85 125 1500 2000 180 240 325 525. Part # 380 To see availability for this product, person Log In or Get Online Access Call for Pricing JP Lamborn 4 in. Enter the ambient temperature (the average temperature of the air surrounding the duct). Check the label on the condenser. You can check this list to get an idea of how much CFM the best air purifiers can produce (for reference). FLEXIBLE DUCTWORK FLEXIBLE DUCT SIZING GUIDE. Accounts for atmospheric pressure and temperature. 9 on 16 votes DuctMate is an interactive duct pressure drop and size calculator. Duct Diameter (round) Duct Airflow Duct Length 90o Bends 45o Bends 180o Bends Friction Loss Per 100' of duct Duct Velocity (inches) (CFM) (feet) (quantity) (quantity) (quantity) (inches of. Open the SP Calculator Pipe Diameter Calculator Our Pipe Diameter Calculator helps you work out the correct pipe diameter depending on the volume or velocity of air. 06" on most metal duct calculators FIELD DUCT SIZING CHART Flexible Duct Round Metal Pipe 750 1200 14" 16" Design Airflow 50 85 125 1500 2000 180 240 325 525. Useful for sizing ducts and fans. Version Download 73; File Size 86. Input the required CFM in the box below that. A rectangular duct with an equal cross sectional area has a perimeter of 3. 9781622709830 Duct Fitting. This calculator is intended for use with all Quietflex flexible ducts. If you need to replace old vents, each one may cost $6-25, depending on material and design. Minimum friction loss will only be obtained when the duct is properly installed. Then divide the answer by 12,000. Stanford III 2019-04-01 Analysis and Design of Heating, Ventilating, and Air-Conditioning Systems, Second Edition, provides a. Flex duct material absolute roughness is anything between (0. Rectangular Ducts (chose up to three different elbow types): Show me what these rectangular elbows look like. Flexible Duct Friction Loss Calculator 1. Duct Calculator Air Duct Calculator Flexible Duct Friction Loss Calculator 1. The System Pressure Calculator helps you work out the resistance in pascals that elements such as spiral duct, bends, duct heaters etc. The major loss, or friction loss, in a circular duct in galvanized steel with turbulent flow can for imperial units be expressed. Flexible Duct Friction Loss Calculator. The size of the return air duct will depend on your air conditioning system’s size. By calculation the pressure drop of the bend only was then determined. Chris Van Rite and the ASHRAE duct calculator. stretched flexible duct, in particular, ASHRAE Fundamentals (ASHRAE 2001a) and ACCA Manual D (ACCA. HVAC/Mechanical Engineering. Step 1: Gathering Necessary Information. Duct Design 5 — Sizing. Flexible HVAC Duct & Fittings at Lowes. Duct type: Metal Ductboard Flex Size by: Friction rate Velocity Friction Rate: per 100 ft. - Insert duct dimensions ( Width and height) This hvac duct sizing calculator is very simple and it calculates the duct friction loss value and air velocity inside the duct. Δh = friction or head loss (inches water gauge/100 ft of duct). ): Note: cannot mix round and regtangular ducts in a single calculation. These calculations are divided in four areas: 1. ‎Thermaflex Duct Calculator on the App Store. straight and fully stretched tight at 0% compression. Your overall ducting size comes from combining the size, CFM, and friction loss of your home—meaning it ends up being a pretty complicated calculation. Here's an example with the new ASHRAE duct size calculator. To calculate the TEL of your ductwork, simply add up the length of all straight sections of ductwork and multiply by 2. Sag – With joist-supported duct, they looked at natural sag and long-term sag. The Duct Size Calculator is intended for use as a quick reference tool for approximating duct sizes and equivalent sizes of sheet metal duct versus flexible duct. ASHRAE now has a duct calculator with options for 4%, 15%, and 30% longitudinal compression, but that’s not for use in designing duct systems. To use our duct size calculator, simply enter the maximum CFM of your blower, then click “Calculate. This online ductulator calculates the dimensions for both round and rectangular duct options (one dimension should be entered by the user for rectangular duct). • Friction rates “typically” range from 0. Duct-size-calculator. Flexiduct is available in the following nominal diameter sizes. Duct Calculator Air Duct Calculator Flexible Duct Friction Loss Calculator 1. If selected, Flexible roughness is 0. As an example, the following tables show estimated airflow/cfm with a metal duct. The duct has R6 insulation which contains 33% more insulation than the standard R4. Title: NEW DUCT SIZING CHART. In order to maintain velocity, reduce duct size. Let's say we have a section of ductwork . The average cost to replace ductwork is $1,400 to $5,600, depending on the home's size. where you specify the duct sizes through tight areas where there is little room for ductwork, and let the program calculate the sizes everywhere else. Read Duct Diameter (inches) and Duct Velocity (FPM). If you need more information or. HVAC Duct Calculator Use Our ServiceTitan Ductulator to Calculate Proper HVAC Ductwork Sizing Duct Type Metal Flex Size by Friction rate Friction Loss rate View Common Rates per 100 ft (in/wg) # of 45° Bends # of 90° Bends # of 180° Bends Duct TEL * include fittings in the Duct TEL Enter either Duct Size Duct shape Convert Here Round Diameter. CFM = (Area x Height x ACH) / 60 If we input the figures from our example, we get: CFM = (1,000 sq ft * 8 ft * 4) / 60 min = 533 ft3/min = 533 CFM In short, we get the same number. Search for: Customer Service & Order Placement Information. So what is an Air Duct Calculator (Ductulator)? MicroMetl has produced a high quality video demystifying it's purpose and functionality. Enter Duct Airflow (CFM), Duct Velocity (FPM), Duct Length and the number of. Duct Calculator Air Duct Calculator Flexible Duct Friction Loss Calculator 1. A duct size calculator, commonly known as a ductulator, depends on factors like the size of the space you’re heating or cooling, air flow Duct type: Metal Ductboard Flex Size by: Friction rate Velocity Friction. Read Friction Loss (inches of. A duct size calculator, commonly known as a ductulator, depends on factors like the size of the space you're heating or cooling, air flow Duct type: Metal Ductboard Flex Size by: Friction rate Velocity Friction. Its cross-section is calculated as 3. Get it Thu, Oct 20 - Tue, Oct 25. 003 ft when straight and fully stretched tight at 0% compression (adjusted at other compressions), otherwise the. 05" on most metal duct calculator Round metal pipe =. Sag - With joist-supported duct, they looked at natural sag and long-term sag. Duct Design Calculator Wheel 2013-05-01 DUCT DESIGN CALCULATOR WHEELThis duct calculator is the technicians favorite. Marinsoft makes it easy for you to test drive Marinsoft Duct Calculator at your leisure with the fully functional evaluation version. Note: For everybody using metal duct calculators, you should input Flex duct =. Return air grilles & filter grilles need also. Select the duct material from the drop-down list (most duct sizing tools are typically based on galvanised steel ducting by default) Enter the air flowrate in litres/second (can change to cubic metres/second by use of drop-down to the. As the condition progresses, the tissues of the pancreas are repla. Duct Size Calculator Ductulator is an engineering tool to calculate air duct dimensions based on given inputs including air-flow, duct material roughness and either air pressure static loss (friction method) or air velocity (velocity method). * include fittings in the Duct TEL Enter either: CFM: or Duct Size: CFM: Convert Rectangular duct to Round Equivalent. Duct Velocity Calculator (Air Velocity = Airflow / Duct. Using an HVAC Duct Sizing Calculator. Download Thermaflex Duct Calculator and enjoy it on your iPhone, iPad, and iPod touch. Or you can decide on a height × width measurement. A round duct with a cross sectional area of 0. If you’re using flex round ducts, you need ducts with a 16-inch diameter. A metal duct calculator does not account for the additional resistance that is common with flex duct. If selected, Flexible roughness is 0. 1" and a flex duct specific calculator using the same friction loss. The area of round flex ducts is calculated as π*R 2 where R is the radius of the duct. View Notes - Air Duct Calculator. Number: Type: Stamped 5 piece 4 piece 3 piece Mitered no vanes Mitered turning vanes Flatback. Select the duct material from the drop-down list (most duct sizing tools are typically based on galvanised steel ducting by default) Enter the air flowrate in litres/second (can change to cubic metres/second by use of drop-down to the right of the input) Enter an internal duct size (this must be limited to a maximum aspect ratio of 5:1 for the. Then, pull the line diagonally to the right and find the suitable duct diameter. DuctMate is an interactive duct pressure drop and size calculator. Note: For everybody using metal duct calculators, you should input Flex duct =. It measures the inside of a circle from one point on the inner wall to the other point. Sizing, duct, ducts, ductwork, air, flow, sizing, friction, …. ADC Flex Duct Installation Training; Friction Loss Calculator; Tech Corner Archives; Blog; Homeowner; Gallery; Contact; Careers; Friction Loss Calculator. Their products meet the most. Insulated Flexible Duct R6 Silver Jacket is used in standard Heating and Air Conditioning (HVAC) systems and some venting applications. Scribd is the world's largest social reading and publishing site. Including both SuperHeat and SubCooling of R410a and R22; a Duct Calculator that calculates CFM, Pressure Drop and Sizing for - Rectangular Metal, Round Metal, AND Round Vinyl Flex. Add in the trunk line and return equivalent lengths, and you have well over 200 foot of total equivalent length. Insulated The Master Flow 6 in. 58-CFM, close to my other software number of 867-CFM. xls from FEBE 111 at Tunku Abdul Rahman University College, Kuala Lumpur. Instructions. Enter Friction Loss (inches of water), Duct Airflow (CFM), Duct Length and the number of bends. These compressions, and others, were studied because flexible duct is typically. Enter the ambient temperature (the average temperature of the air surrounding the duct) Line 3. 6*Friction factor in duct*Length of the duct*Mean Velocity of the air^2)/ (Diameter of Circular Duct/4)) Pf = ( (0. Click "calculate" and you will see the size of flex duct you need for that room. This calculator estimates the temperature drop (or rise) of air flowing in a duct. Elbow Sweep (Degrees): 90 60 45 30. Because of this, HVAC professionals and amateurs alike typically don't calculate the final HVAC ducting size by themselves. Rectangular Ducts. Duct type: Metal Ductboard Flex Size by: Friction rate. How to calculate sizing for fabric duct systems The Prihoda online calculator is a helpful tool for initial sizing. Rectangular duct is rounded up to the nearest 1/4 inch. The average cost of new ducts is $1. Friction Loss (inches water) Duct Airflow (CFM) Duct Length (feet) 90 Bends (quantity) 45 Bends (quantity) 180 Bends (quantity). Spiro-Set Semi Rigid Aluminium Duct . The calculator uses information from ASHRAE Research Project 1333, HVAC Duct Efficiency Measures, and was developed with funding . CFM Sizing Chart For Flex Round Ducts (50-1,700 CFM) ; 7 inches, 110 CFM ; 8 inches, 160 CFM ; 9 inches, 225 CFM ; 10 inches, 300 CFM. HVAC Duct Construction Standards - Metal and Flexible 3rd Ed Smacna 2005-01-15 duct-fitting-equivalent-length-calculator 2/4 Downloaded from voice. The calculator uses information from. The area of round flex ducts is calculated as π*R 2 where R is the radius of the duct. "Calculators By Engineers for Engineers". The primary functions of the collecting duct. Cube Calculator. To convert for fiber board: 156" *X 16"= 256 *X 0. This calculator is intended for use with all Quietflex flexible ducts. The Global Choice for Flex Duct Quality. If you’re using a rectangular duct, multiply the system size by 144 sq. When words match actions consistently over time, trust is established. Residential Industry Standard for Sizing Ducts (if done at all). Never locate ducts at the end of the trunk line run. Plants in California, Colorado, Florida and Tennessee. Round duct: "Ø: 748 : FPM: 0. Round duct: "Ø: 748 : FPM: 0. HVAC Duct Size Calculator Excel. This hvac duct sizing calculator is very simple and it calculates the duct friction loss value and air velocity inside the duct. Head loss or major loss in air ducts - equations and online calculator for rectangular and circular ducts - Imperial and SI units. ATCO Rubber Products, Inc. Never locate ducts at the end of the trunk line run. Tools for Solar Piping and HVAC Design. Title: NEW DUCT SIZING CHART. Note: For everybody using metal duct calculators, you should input Flex duct =. Velocity Friction Rate: per 100 ft. Measure the length and width of the room where the flex duct will be supplying the air. This NEW & Improved amazing tool performs every function needed by the HVAC professional. For all sizes the test By its very nature, flexible duct presents. The size of the return air duct will depend on your air conditioning system's size. These HVAC tools are used for assistance in sizing ductwork for HVAC systems. 06" on most metal duct calculators FIELD DUCT SIZING CHART Flexible Duct Round Metal Pipe 750 1200 14" 16". Then, add up the length of all elbow sections of ductwork and multiply by 4. It’s to show how bad existing systems are if the flex isn’t pulled tight or to scare installers into pulling it tight. Airflow - CFM, Trunk, 700, 600, 600. Enter Friction Loss Per 100' of duct (inches of water), Duct Airflow (CFM), Duct Length and . Residential Air Duct Calculator. head Air Ducts Friction Loss Calculator - Imperial Units The head loss calculator below is based on formula (1):. 06" on most metal duct calculators. 07" on most metal duct calculator s Duct Size 14" 5" 6". So what is an Air Duct Calculator (Ductulator)? MicroMetl has produced a high quality video demystifying it's purpose and functionality. Air Velocity Calculator For Rectangular Ducts (2nd Calc). ‎Thermaflex is literally at your fingertips with this convenient and easy-to-use application for the. duct-weight-calculator 3/3 Downloaded from. The collecting ducts of the kidneys are a network of small tubes that act as a drainage system in the body. It's the only slide rule on the market that has conversion for Smooth Metal to Insulation Lined Metal. You must find the duct CFM of each . This Duct Size Calculator's data is based on flexible duct laying in a straight line on a level surface,and nearly fully stretched (4% compression. The duct size will be 2 144 = 16. Rectangular duct is rounded up to the nearest 1/4 inch. Kit Includes: Flexible Duct Calculator; These HVAC tools are used for assistance in sizing ductwork for HVAC systems. Free online ductulator for sizing of HVAC ducts. the basic concepts and equations for correct calculation of heat loss in. A duct bank refers to a group of electrical conduits that provide pathways and protection for electrical wiring. Friction Loss Per 100' of duct) Flexible Duct Friction Loss Calculator Sheet Metal Duct Friction Loss Calculator Duct Diameter Approximate Dynamic Loss Coefficients Duct Length (feet) Friction Loss 2. Free online ductulator for sizing of HVAC ducts. A duct size calculator, commonly known as a ductulator, depends on factors like the size of the space you’re heating or cooling, air flow Duct type: Metal Ductboard Flex Size by: Friction. Downloads Price Lists Installation Instructions Friction Loss Calculator Submittals Heating & Cooling Flex Customer Service & Order Placement. Duct type: Metal Ductboard Flex Size by: Friction rate Velocity Friction Rate: per 100 ft. A round duct with a cross sectional area of 0. 0003 feet) which is completely outside all cardboard ductulators range. The calculator uses information from ASHRAE Research Project 1333, HVAC Duct Efficiency Measures, and was developed with funding support from ASHRAE and ADI. For residential HVAC systems, insulated flex duct typically comes in . SuperCool Slide Rule Duct Calculator Flex Metal Ductulator Chart. "Calculators By Engineers for Engineers". Flexible Duct Sizing Guide ; 44 l/S · Ø 150 ; 92 l/S · Ø 200 ; 170 l/S · Ø 250 ; 275 l/S · Ø 300. The calculator uses information from ASHRAE Research Project 1333, HVAC Duct Efficiency Measures, and was developed with funding support from ASHRAE and. A new duct-sizing calculator from ASHRAE and the Air Distribution Institute (ADI) allows HVAC air-distribution-system designers to size ducts more accurately, especially flex ducts under varying amounts of compression, based on research results. This calculator estimates the temperature drop (or rise) of air flowing in a duct. ® 20 year warranty is unsurpassed in the HVAC ductwork industry. my on October 30, 2022 by guest Duct Fitting Equivalent Length Calculator Recognizing the exaggeration ways to get this books Duct Fitting Equivalent Length Calculator is additionally useful. In the next article, we’ll see how friction rate translates to duct sizes and how a duct sizing calculator works. The Duct Size Calculator is a quick reference tool for approximating duct sizes and equivalent sizes of sheet metal duct vs. Feb 14, 2019 - Cfm Per Duct Size Chart Sizing Duct Ducts Ductwork Air Flow Flex intended for Flex Duct Sizing Chart Flex Duct Sizing Chart Unique Hvac Duct Hvac Duct Size Chart pertaining to Flex Duct Sizing Chart Duct Size: Helpful Ductwork Sizing Chart | Riley Sales within Flex Duct Sizing Chart Flex Duct Sizing Chart Lovely Duct …. Material: Heavyweight coated calculator > board. This Duct Size Calculator's data is based on flexible duct laying in a straight line on a level surface,and nearly fully stretched (4% compression. Your systems will perform much better if you size your flexible ducts larger. Or, for calculating cooling load, planning duct layout and sizing. Always stagger take-off ducts by 12" to maintain pressure. 750 2293 Sheet Metal Duct Friction Loss Calculator 1. duct-weight-calculator 1/3 Downloaded from accreditation. HVAC Duct Calculator Use Our ServiceTitan Ductulator to Calculate Proper HVAC Ductwork Sizing Duct Type Metal Flex Size by Friction rate Friction Loss rate View Common Rates per 100 ft (in/wg) # of 45° Bends # of 90° Bends # of 180°. Flexible duct work must be stretched tightly for maximum air flow. If you must use a metal duct calculator and rule of thumb, size your flex ducts at the. flexible duct. Ductmate calculator is a comprehensive software that you can find sizes for rectangular and round duct besides you can calculate duct friction loss or air velocity through the duct. Enter Friction Loss Per 100' of duct (inches of water), Duct Airflow (CFM), Duct Length and the number of bends. The major loss, or friction loss, in a circular duct in galvanized steel with turbulent flow can for imperial units be expressed. Flexible Duct sizing guide Litres Per Second. Select the duct type on the pull down menu. /100 ft): Max Velocity (FPM): For residential applications, the maximum velocity will rarely be above 1,500 FPM and the maximum friction rate should not exceed 0. Air duct replacement costs $25 to $55 per linear foot or $270 to $500 per duct for a crawl space, attic, or basement. For installation instructions refer to the duct package. 05 friction rate and follow the steps above. The Duct Size Calculator is a quick reference tool for approximating duct size and equivalent sizes of sheet-metal duct and flexible duct. Air velocity, or airflow, gets measured in cubic feet per minute (CFM) and is directly proportional to the size of ductwork. ATCO Flex Ductulator | Victor Distributing Air Conditioning - Heating - Refrigeration View Cart >> New Customer? 800-909-7276 Products Manufacturers Events Calendar Resources About Us Contact Us for customers in our market area Previous ATCO Flex Ductulator ATCO Flex Ductulator Part Description: ATCO Flexible Duct Air Friction Loss Calculator. Thermaflex and ARCOM Sign Agreement to Customize Product Resources for Specifiers. Ductuputer for Windows is a duct sizing calculator that can find air volume, velocity, friction loss and duct size only by entering any two factors. Convert Round Duct Size to Rectangular Duct Size for equivelant airflow. Enter Round Duct Diameter (inches), Duct Airflow (CFM), Duct Length and the number of bends. The Flexible Duct Calculator uses the applicable test data in consideration of the acceptable practice of duct installation as specified in the Air Diffusion Counci's Flexible. The rectangular duct therefore requires more metal for its construction, this adds more weight and costs to the design. A rectangular duct with an equal cross sectional area has a perimeter of 3. This is a handy tool when deciding what size duct you want to use for your application. Convert Round duct to Rectangular Equivalent. (adjusted at other compressions), otherwise the. The calculator assumes the duct is installed in the uncompressed condition. In order to maintain velocity, reduce duct size. Convert Round Duct Size to Rectangular Duct Size for equivelant airflow. You have remained in right site to begin getting this info. A simple calculator for calculating the pressure losses in air ducts. HVAC Duct Construction Standards - Metal and Flexible 3rd Ed Smacna 2005-01-15 duct-fitting-equivalent-length-calculator 2/4 Downloaded from voice. On this page you can estimate. ) The data provided on the Ductulator shows research data obtained with flexible duct compressed 15% and 30% in length. Friction Loss Calculator - Excel management systems makes ATCO the #1 source for flex duct anywhere in the world. Duct Design 2 — Available Static Pressure. The System Pressure Calculator helps you work out the resistance in pascals that elements such as spiral duct, bends, duct heaters etc. This calculator is intended for use with all Quietflex flexible ducts. Adjustable Absolute Duct Roughness. For the more duct formulas download this All HVAC Calculator excel sheet, in this sheet you will find all calculations of central air conditioning. A new duct sizing calculator from ASHRAE and the Air Distribution Institute (ADI) allows HVAC air distribution system designers to more accurately size ducts, especially flex ducts under varying amounts of compression, based on research results. Cable Duct Size Calculator. Select the duct material from the drop-down list (most duct sizing tools are typically based on galvanised steel ducting by default) Enter the air flowrate in litres/second (can change to cubic metres/second by use of drop-down to the right of the input) Enter an internal duct size (this must be limited to a maximum aspect ratio of 5:1 for the. Instructions (Input information may generally be be obtained from design documents or field measurements) Line 1. Duct Diameter (round) Duct Airflow Duct Length 90o Bends 45o Bends 180o Bends Friction Loss Per 100' of duct Duct Velocity (inches) (CFM) (feet) (quantity) (quantity) (quantity) (inches of water) (FPM) 20 5000 100 0. Trane Air Duct Sizing Calculator/Slide Rule. If you put both of these numbers in the duct velocity calculator above, you get a 636. Today, wherever flex duct is sold — for quality, for service — ATCO is the recognized leader. AIR FLOW DYNAMICS & DUCT SIZING. Enter the air flowrate in litres/second (can change to cubic metres/second by use of drop-down to the right of the input) Enter an internal duct diameter (this can be any number, it doesn't need to be standard duct size) To get an idea of the equivalent rectangular duct size, adjust the aspect ratio. Hart & Cooley - Air Duct Calculator Flexible Duct Friction Loss Calculator 1.