Fixture count to gpm. html>re a. g. Office Buildings GPM Hotel Motel GPM Industrial Municipal Hospital GPM *Hunter's Curve GPM 200 73 82 95 100 250 76 85 98 100 300 80 90 100 110 400 85 95 110 115 TOTAL GPM = GPM. Fixture Units to Flow (GPM) Conversion. 4. For unused rows, select the "-" in the first and second columns. 0 gpm is correct. 5 fixture units shall be allowed per gpm of flow. As an example, the DEP sizing table sinks, dishwashers, and washing machines are attributed a fixture count of 4. 0 gpm 702. A swimming pool would see 10. 1 FU's for reference: GPM = 16 - (16 - 15) x ((23 - 22. Dec 20, 2023 · The fixture unit count is a measure of the demand each fixture places on the plumbing system. In Example 2, a 50 gpm unit would be required. Nov 15, 2010 · A low-flow water closet uses 3. 18-29-709. Jan 10, 2023 · For values between values included in Table 2, linear interpolation should be used to determine the exact GPM. 16 or 0. Ask purveyor depth of main in street, or ask pump installer depth of pipe at connection to Supply loads in the building water distribution system shall be determined by total load on the pipe being sized, in terms of water supply fixture units (w. It represents the volume of water flowing through a point in a plumbing system over the course of a minute. Second, multiply the quantity by the number of fixture units given under either column “Private Use” or “Public Use”, whichever is applicable. 433 psi per foot (9. Use the “Reference Water Meter Size” to determine the “Calculated Meter Size”. s will typically use less water if flush tanks are specified. Static pressure loss or gain (due to head) is computed at 0. Drainage fixture unit values as given in Table 18-29-709. Flow Demand WSFU (gpm) Note: In addition to the requirements of this chapter, buildings or facilities where accessibility is required for applications listed in California Code of Regulations, Title 24, Part 2 (California Building Code), Chapter 1, Section 1. 785 L, 1 gallon per minute = 3. Update 6/20/2024 Aug 4, 2011 · One WFSU for a singel unit corresponds to one GPM. (2), where the hydraulic load is to be expressed in litres, fixture units shall be converted as follows: (a) when the number of fixture units is 260 or fewer, the load is 2 360 L, and. Find the total fixture count by adding the values found in Step 2. Peak Flow. Fixture Type. 9. Apr 24, 2017 · Table 610. And in case you were wondering, the Hunters Curve is named for Dr A Fixture Unit is not a flow rate unit but a design factor based on the rate of discharge, time of operation and frequency of use of a fixture. Trap Sizes vs. If the proposed addition of plumbing fixtures to an existing residence results in 3. Bath Tub or combinationbath/shower. The “Total Fixture Value” is the sum of the “Initial Fixture Count” and “Gallons per Minute”. Slope Carrying capacities of sewer and wastewater pipes - gpm and liter per second. s. 5:23-3. 8 kPa/m) of elevation change. Fixture unit allowance table based on allowable friction loss and pipe diameter for type L 3. gpm. Total turf area installed (as shown on attached landscape plan)= Sq. 6 gallons per flush and showerheads 2. Revit performs a general conversion from fixture units to flow, using the values found in the 2006 International Plumbing Code (IPC), Table E103. 5 gpm. Demand of building in WSFU converted to Gallons Per Minute. Fixture Value Based on 35 PSI Inlet Fixture Nov 13, 2019 · As you can see, the demand gpm for 800 fixture units is approximately 180 GPM. Fixtures Added: In this column, list the number of new fixtures or the number of fixtures being added to an existing project under the appropriate fixture type. 7 m 2 ), the combined flow rate from shower water outlets that are capable of operating simultaneously including rain systems, waterfalls, body sprays and jets shall not exceed 2. To determine the occupant load of each sex, the total occupant load shall be divided in half. Sep 20, 2021 · By comparison, the old fixture-unit method would derive a peak demand of 30 gpm for the same configuration, requiring a 1 ¼-inch diameter pipe. 25 gallon per metering cycle: Lavatory, public (other than metering) 0. Divide the drainage fixture unit rating by 2 to get the gallons per minute of flow for your device or system. 3 (3). IMPORTANT: The calculator may only be used as a screening tool to approximate the number of WSFUs. Table 702. 1000 FU, for example, is equivalent to Oct 1, 2020 · fixtures, and is located where less than 1. All the plumbing codes I have seen over the past 40 years show a non-linear relationship between the number of fixture units (both WSFUs and DFUs) and peak flow (Qp), so neither 1 DFU = 7. Select the appropriate description from the dropdown list in the second column. All the fixtures in Table 702. The listed minimum supply branch pipe sizes for individual fixtures are the nominal (I. While residential plumbing fixtures have exactly 1/2 that fixture count. Measure your sinks. See Sections 709. 20. 5" NA NA NA NA 1. 4 Kitchen faucets are permitted to temporarily increase the flow above the maximum rate, but not to exceed 2. As a result, 5 divided by 14 and multiplied by 60 yields a 21. The unit count for each fixture is determined by multiplying the number of each fix-ture type by the number in the multiplier column. 8. Total Estimated Peak Demand . com . 2 gpm at 60 psi: Urinal: 1. 1 through P-720. Fixture Unit Table for Determining Water Pipe & Meter Sizes. See Sections P2903. Explore a searchable database of US construction and building code. 00 per Table 4-3. The 75% Method means that if there’s both a hot water and cold water supplied to the fixture, we take that total fixture unit and multiply it by . All new and/or replacement plumbing fixtures for public use shall be of the water conservation type. Table 1. 3 for sizing requirements for fixture drain, branch drain and drainage stack for an automatic clothes washer standpipe. J. 3 Continuous Flow. For a single-basin sink, the fixture unit value is typically 1. Systems with less than 1000 F. When the total amount for many fixtures are added up, the number must be compensated due to the intermittent use of the fixtures. Fixture unit allowance table based on allowable friction loss and pipe diameter for type L [P] 2902. Nov 29, 2013 · Table 2 shows the recommended minimum basin diameter for various pumping capacities (GPM) for both simplex (one pump) and duplex (two pump) systems that will accomplish a two-foot pump down with no more than 10 starts per hour. There is no value for assembly use because it would not apply Sep 22, 2014 · What is a plumbing fixture count? Fixture count is the gallons per minute value each plumbing fixture is attributed in the sizing table. To be approved for a water meter based on the number of WSFU, the applicant must provide calculations prepared by a Texas licensed plumber. 60. You may also call the Wheaton Water Division at 630-260-2090, who may be able to confirm the size of the existing water service line. Fixture unit allowance table based on allowable friction loss and pipe diameter for type L Jun 9, 2009 · From my resource (Frankel's Facility Piping Systems Handbook) a developed campground would see 21-40 gpd/person (avg 32). 702. 1 regulated by the Division of the State Architect - Access Compliance shall also comply with Title 24, Part 2, Chapter 11A or 11B, as applicable under Fixture Counts Calculator. Refer to following tables for Drainage Fixture Unit (DFU) Value: Convert Fixture Units to Building GPM Load Total Fixture Flow Units NAMCO's Recommended GPM Load Hunter's Curve Recommended GPM Load Apts. A. Type of Fixture. Accuracy of the fixture count is necessary to determine the appropriate meter size and GPM. For continuous flow fixtures such as hose bibbs and lawn sprinkler systems, add the gallon-per-minute demand to the intermittent demand of fixtures. 16; Rotary systems – Use 0. 4 GPM. of fixture units and required trap size. C. The flow conversion method selected in the Instance Properties dialog for the selected system determines the section of the IPC table used for the conversion. 1 DFU ≈ (approximately) 7. Runs on a spreadsheet. 5. Here are two quantitaive measures of DFUs: 1 DFU = 1 cubic foot of water drained through a 1 1/4" diameter pipe in one minute. When determining the necessary capacity of a drainage or sewer system, it is vital to know the flow of material that is going to be traveling through it. Example 2 would require a 750 gallon unit. ) pipe size. Calculate the capacity of the sink in cubic inches by multiplying length by width by depth. and Water Meter Calculators. 3. This represents the maximum water demand for the system. For example, a total of 120 water supply fixture units is converted to a demand of 48 gallons per minute. 3/4" Pipe. Chapter 4 Joints and Connections. 47 l/s). Maybe be conservative and use 40 gpd/person. 40 of the Wisconsin Plumbing Code. 3. h. f. 1 WSFU = 1 GPM; This conversion can only be used for one or a few fixtures. 1. For example, a clothes washer will have a minimum fixture branch pipe size of ½-inch. 4. 0 gallons per minute (gpm Rate (GPM) 80% Flow Rate (GPM) Fixture Units (Flush Valves) Fixture Units (Flush Tanks) 1. 150. The separate cold water and hot water fixture unit value for fixtures having both cold and hot water connections may each be taken as 3/4 of the listed total value of the fixture. Because the relationship is non-linear (which I will discuss more below) the sum of the buildings' peak flows does Apr 4, 2023 · To calculate GPM with a bigger container, multiply the capacity in gallons by the number of seconds required to fill the container, then multiply by 60. Introduced a new framework to estimate peak water demand in single/multi-family dwellings. Bar Sink. See Section 406. 5 gpm at 60 psi: Shower head a: 2. For a continuous flow into a drainage system, such as from a pump, sump ejector, air conditioning equipment, or similar device, 2 fixture units shall be equal to each gallon per minute (gpm) (L/s) of flow. 5. GPM (Gallons per Minute): When any water requirement is listed by GPM demand, ALL fixtures will be converted to GPM for the benefit of meter sizing. 1 designate the relative load weight of different kinds of fixtures that shall be employed in estimating the total load carried by a soil or waste pipe, and shall be used in connection with Tables 18-29-710A and 18-29-710B of sizes for soil, waste and vent Apr 3, 2013 · Fixture count was developed by the American Water Works Association (AWWA) in 1975 and is presented in AWWA’s M-22 Manual. Sewer piping has to be sized to work correctly under these "impulse" loads, even if that First, insert the number of each type of fixture on your premises under the column headed “Quantity”. Add Irrigation – Sections* x 1. 5 gallons per flush, and flushes in 5 to 10 seconds. Multiply By Fixtures Unit. Updated Load Calculation (List any continuous demand fixtures) Illinois Plumbing Code-Section 890 Appendix A, Table N (Modified by the Village of Oak Park Development Customer Services Department for simplicity and consistency with Oak Park Requirements) Water Supply Fixture Units (WSFU) for a system with Flush Tanks . 6. 5 drainage fixture units are upstream of the water closet drain line connection. 2 gpm at 60 psi: Lavatory, public (metering) 0. A Fixture Unit is not a flow rate unit but a design factor based on the rate of discharge, time of operation and frequency of use of a fixture. Things are back - now that the PE Prep season is (mostly P-720. Refer to Table 1 below for details on Meter Sizing. 1) / (23 - 21)) = 15. 6 gpd/person which includes both customer and employee. 2. The size of the plumbing limits the flow of water, so this can be used as a guideline for the maximum flow rate coming into your home in extremely peak usage. D. Convert WSFU's to GPM (SPS Table 382. Jul 4, 2010 · Conversion of Fixture Units to Litres and Gal/min. u. Estimated Flow Rates for Copper Piping. By entering the number of water-consuming fixtures and appliances - or the individual branches and risers - the IAPMO Water Demand Calculator automatically computes the peak water demand flow rate (in See full list on mepacademy. 47 liters/second. Chapter 3 Materials. 1 Values for fixtures. It works with the 2002 through 2019 editions of NFPA 13R and with both US and SI units. 2 for sizing requirements for fixture drain, branch drain and drainage stack for an automatic clothes washer standpipe. Two hose bibbs × 5 gpm demand = 10 gpm. Sewer Pipes - Capacities vs. A bathtub for example flows at a rate of 8 GPM without any interference from other fixtures. Plumbing Fixture Unit Count for Single Family Dwellings . 785 L/m. 14). 1 have intermittent flows and therefore are assigned fixture units as discussed in the commentary for Section 702. . Per EPAct92, toilets are limited to 1. 2 gpm (8. For SI: 1 gallon = 3. With respect to fixture discharge, each fixture unit is equivalent to 7. Normal Flow. For example, the following calculation can be performed to determine the exact GPM between 15 and 16 based on 22. GET THE PLUMBING FIXTURE CALCULATOR. Select the occupancy from the dropdown list in the first column. 0 gpm 3. 3 also establishes the minimum pipe size of a given fixture branch. Step 3: Multiply the fixture unit count per bedroom by the number of bedrooms to get the total fixture unit count for the residential unit. Public metering lavatory faucets. 5 gallons per minute (GPM). The values shown for the “Gallons Per Minute (GPM):Fixture Value(FV)” are the maximums for each meter size. residential kitchen sink with a single basin and a flow rate of 2. Use the tables below to calculate GPM required. 2. x 4. RE: Converting GPM to GPD. How many gallons is a fixture unit? A fixture unit is equal to 1 cubic foot (0. Plumbing fixtures in commercial kitchens. (b) when the number of fixture units exceed s 260, the load is 9. 48 US gpm, ≈ 0. WDC is an appendix in the 2018 Code. Fixtures unit. Jul 25, 2006 · Drainage Fixture Units (DFU) are more comprehensive than a flow rate (GPD or GPM). Supply piping would be calculated accordingly, while the total figure of the two fixture units would be used to design the drainage piping. Capacity fees will be based on a combination of both fixture unit count and GPM demand. 6 (1)]. GPM is often used to specify the maximum flow rate or capacity of fixtures, faucets, showers, or appliances. Fixture Units No. For a fixture not listed, use the highest d. 18. Fractional numbers resulting from applying the fixture ratios of Table 403. 402. 2 Maximum Length. Enter the “Calculated Meter To determine the required number of fixtures for each sex, the fixture ratio or ratios for each fixture type shall be applied to the occupant load of that sex in accordance with Table 403. Basic Principles. For fixtures added to a bathroom group, add the dfu value of those additional fixtures to the bathroom group fixture count. Sump/Sewage/Grinder GPM Calculation Worksheet. Meter Size . 40 - 3). Using the correct chart on page 6, find your total supply fixture count value in the left hand column and read across to the right to find the gpm demand. 48 US GPM or ≈ 0. The maximum pipe piping length from the source of hot or tem-pered water to the termination of the fixture supply pipe serving any plumbing fixture or appliance shall not exceed 50 ft (15 m) of developed length. Can be applied to a wide spectrum of buildings. Total gpm rating = 48. How many GPM does a fixture unit have in terms of this? The relationship between gallons per minute (GPM) and fixture unit is variable, but it differs depending on the number of fixture units. 40 Added Fixed Load = gpm TOTAL FIXED DEMAND = gpm For continuous flow fixtures such as hose bibbs and lawn sprinkler systems, add the gallon-per-minute demand to the intermittent demand of fixtures. 1 shall be rounded up to the next whole number. They take into account both the probability of multiple plumbing fixtures being used a one time and the fact that most plumbing loads are really "impulse" not "steady state". inches. Dec 14, 2023 · The IPC provides a table with fixture unit values for different fixtures and their usage patterns. 4 gpm. (See pages 7 through 9). Replaced fixture units with fixture counts. Watch Now. B. 3 of the International Plumbing Code. Because of the variable conditions encountered, it is impractical to lay down definite detailed rules of procedure for determining the sizes of water supply pipes in an appendix, which shall necessarily be limited in length. These plumbing systems, or parts of systems, shall be equipped with water conservation equipment or devices which comply with the requirements of Sections P-720. For dwelling unit and guestroom shower compartments with a floor area of not greater than 2600 in 2 (1. It will be assigned a fixture unit value of four water supply fixture units in private use and four WSFU in public use. This law has an effective date of October 26, 2016. Aug 28, 2019 · Here’s my scratched itch – a calculator that will populate minimum requirements for plumbing fixture counts based on the 2018 International Building Code & 2018 International Plumbing Code. 5 (Step #1) to determine number of fixture units; Then use Table 3. 3 L/m) at 60 For fixtures added to a bathroom group, add the dfu value of those additional fixtures to the bathroom group fixture count. 5 or 1. Don’t forget to consult the proper column depending on whether you will have a 1 or 2 -pump system. 1, of Appendix A of the Los Angeles Plumbing Code. 6, and gallon per minute (gpm) flow rates [see Table P2903. 1. PIPE SIZE - of the existing water service line to your home is best determined by measuring the pipe where it enters the building. This is normal taken care of in the tables available for sizing supply pipe lines. 1 regulated by the Division of the State Architect - Access Compliance shall also comply with Title 24, Part 2, Chapter 11A or 11B, as applicable under This appendix provides a general procedure for sizing a water supply system. Make sure you use the correct gpm column for private“ ” or “public”. Office Buildings GPM Hotel Motel GPM Industrial Municipal Hospital GPM *Hunter's Curve GPM 200 73 82 95 100 250 76 85 98 100 300 80 90 100 110 400 85 95 110 115 Fixtures located within toilet rooms subject to the exception of Section 403. Step 4: Convert the total fixture unit count into the required number of plumbing fixtures based on the IPC Where a fixture comes in contact with the wall or floor, the joint between the fixture and the wall or floor shall be made watertight. 75. Now that we’ve got the size of the meter verified, we need to size each branch of our system. 6 GPM. We’re going to be using what’s called the 75% Method. Number Of Fixtures. Code regulations are consolidated by state and from the 2010 California Plumbing Code. A typical shower produces a flow of 5 gpm (7200 gpd) for 5 to 10 minutes. Kitchen sink faucet flow rates are limited by the original Energy Policy Act of 1992 at ___ gpm at 60 psi. 80. Determine difference in elevation from main or external pressure tank to building control valve. 7 gpm. 5 gpm at 80 psi: Sink faucet: 2. In Example 1, based on 29 DFUs a 75 gallon per minute (gpm) unit would be required. 125. In this case, the fixture unit value can be calculated as follows: Start by determining the fixture unit value based on the sink size. 40 - 1 & 2). Example: 10 Unit Apartment (Hot Only) Summary / Conclusions. If FRONT AND BACKYARD INSTALLED BY BUILDER - PRORATED SFE SFE EQUILVALENT =. Example 1 would require a 100 gallon unit. As more fixtures are present, the probability of flow decreases. In plumbing terms, flow is typically expressed in gallons per minute. Note: In addition to the requirements of this chapter, buildings or facilities where accessibility is required for applications listed in California Code of Regulations, Title 24, Part 2 (California Building Code), Chapter 1, Section 1. 10. Water Meter size, to be filled in by the Castle Rock Water Department =. Convert Fixture Units to Building GPM Load Total Fixture Flow Units NAMCO's Recommended GPM Load Hunter's Curve Recommended GPM Load Apts. The idea is that you count the total number of fixture types, assign a value to each category and determine the total number of fixture units. 2 gallons per minute (gpm). Oct 28, 2020 · It's a new Domestic Demand Calculator - it can turn fixture counts over to a domestic demand in gpm or L/min - or you could hand count plumbing fixtures and calculate a domestic demand yourself. For minimum required plumbing fixture count where a wash fountain is used, every ___ inches of wash fountain rim counts as one public lavatory. For a continuous or semicontinuous flow into a drainage system, such as from a pump or similar device, 1. A fixture unit is equal to one cubic foot of water drained in an 1 1/4 pipe over one minute (≈ 7. Where multiple-user facilities are designed to serve all genders, the minimum fixture count shall be calculated 100 percent, based on total occupant load. Total Fixture Units: Water Pipe Size: 3/4 16 FU Oct 10, 2013 · · Find the Toatl Building Fixture Count (800) on the Hunter's Curve to convert the total fixture units to pump capacity in GPM and size your pump accordingly Keep in mind that the IPC also requires a minimum flow rate of 2 feet per second to keep any entrained solids moving down the line. 0 gpm + 10 gpm = 58. 5 gpm or 1 DFU = 0. x 1. 1 DFU = 1 cubic foot of water drained through a 1 1/4" diameter pipe in one minute. lavatory fixtures 2. 3 was added by: Local Law 79 of 2016. May 5, 2021 · The 75% Method. 2 Public Use Fixtures. 1/2" Pipe. A floor drain itself does not add hydraulic load. Note: The double lines in the lower left reflect systems with flush valves (upper) and flush tanks (lower). 3 Securing Fixtures Floor-outlet or floor-mounted fixtures shall be rigidly secured to the drainage connection and to the floor, where so designed, by screws or bolts of copper, copper alloy Step 3. Septic Systems Septic systems handles waste from drain systems. Water-flow Demand per Fixture Value from Figure 4-2 or 4-3 x Pressure Adjustment Factor = gpm. fixture unit on the cold water system, and 1½ fixture unit on the hot water. 0 gallon per flushing cycle: Water closet: 1 Add up WSFU's (SPS Tables 382. Fixture units are used for water meter sizing purposes. U. Calculate Total Demand: Add up the fixture unit counts for all the fixtures in the system to determine the total demand in fixture units (DFU). The confusion centers on how to sum up the fixtures to determine the total number of fixtures for a building. 6 (Step #2) to convert Fixture Units to GPM; Enter the GPM in the GPM box under “Design Flow Rate” on the Pump Design Guide. 1 of this code and Section 604. value for a similar listed fixture. Column 4 is the maximum number of fixture units permitted on a water meter when the plumbing fixtures are predominantly flush valve type water closets and urinals, based on 2018 UPC, 2018 IPC or 2018 IRC, whichever is applicable. Drain Fixture Unit, or DFU, is a plumbing design factor, or a relative measure of the drain wastewater flow or load for various plumbing fixtures. ), as shown in Table P2903. Using a volume of 5 gallon container as an example, filling the container takes 14 seconds. Adj. To determine the required number of fixtures, the fixture ratio or ratios for each fixture type shall be applied to the occupant load of each sex in accordance with Table 2902. Meter & Street Service (inches) Building Supply & Branches (inches) Maximum Allowable Length (feet) 40. PLUMBING FIXTURE OR FIXTURE FITTING: MAXIMUM FLOW RATE OR QUANTITY b: Lavatory, private: 2. 1 are permitted to be included in the number of fixtures required by Section 403, or where applicable the 1968 Building Code, only for that sex. Chapter 2 General Regulations. There would likely be some cross over so maybe 35 gpd/person. Ft. Example: Assume that the highest fixture supply outlet is 20 feet (6096 mm) above or below the supply source. C. Chapter 5 Traps, Cleanouts, and Backwater Valves. Jun 25, 2023 · GPM is a unit of measurement used to express the flow rate of water through a pipe or fixture. In this interactive object, learners assign water supply fixture units to a water distribution system using Section 82. (1) Except as provided in Sentence 7. Fixture Unit – Flow Relationship Once the total fixture count is obtained, the next step is to correlate this to the probable IBC/IPC Plumbing Fixture Calculator. Now, with only four inputs you can quickly grab the minimum fixture counts from the 2018 IBC. Enter the occupant load in the third column. Plumbing fixtures for accessible use and their installation shall conform to the requirements of Chapter 11 of the building subcode (N. Total planting area installed (as shown on attached landscape plan)= Sq. 1 17 (17 gpm) Domestic Fire Protection Sprinklers . 0 gpm Check the pipe size at the entrance to your home or facility. All new service taps for buildings including all single-family residential lots shall be a minimum of 1-inch in size. Maximum Drainage Fixture Unit - DFU - loads in sanitary piping systems. Factor = gpm *100 ft2 area = 1 section †Spray systems – Use 1. 2(2) shows discharge capacities in gallons per minute computed to fixture units up to 50 gpm. (1 ft³ /min water drained through a 1 1/4" diameter pipe). ; Exposed waste and water supply piping for accessible sinks and lavatories shall be covered with protectors or insulators that comply with ASME A112. In such multiple-user facilities, each fixture type shall be in accordance with ICC A117. 4 and 709. 1 and each urinal that is provided shall be located in a stall. By Randy Lorge. 1 Fixture calculations. Maximum Drainage Fixture Units (DFU) in Stacks and Horizontal Fixture Branches and/or removed. Explanatory Note: This method uses total combined fixture capacity to define an actual (maximum) drainage load, which is in turn used to define the flow rating of the interceptor required for the application typically up to 100 GPM. Use Table 3. Adjusted Peak Demand (customer peak demand x Pressure adjustment factor) gpm Irrigation Demand (GPM) occur simultaneously with normal water use gpm Other fixed load water demand (GPM) for equipment runs simultaneously with normal water use gpm. Chapter 6 Liquid Waste Treatment Equipment. 1 Fitting and Fixture Consumption. Chapter 1 Definitions. Third, post the result in the “Total column”. When encountering devices or fixtures not listed, the demand in gallons per minute should be determined and added to the total fixture count. A conversion table of the water demand load in fixture units to gallons per minute tabulated based on Chart A 2. It is assumed that piping will be sized to handle all fixtures simultaneously Sep 19, 2022 · New Jersey Plumbing Code 2021. 028 m3) of water drained in an 11⁄4 inches (32 mm) diameter pipe over one minute. 40† = gpm – Hose Bibs x Fixture Value x Press. Table 5 (“GGI” Sizing Chart”) is used to determine the size of GGI needed. Recommended fixture p and q values. Determine Equivalent Fixture Units (EFU): Residential Water Supply Fixture Unit Calculator. *Section 403. *For Residual Pressures at Fixture Outlet from 60-80 psi, Pressure Adjustment Factor is 1. 100. The required number of fixtures for each occupancy is To get the gallons per minute of flow for your device or system, divide the drainage fixture unit rating by two. 5" 110 88 200 350 2" 110 88 200 350 2" 180 144 500 600 Interpolating WSFU’s to GPM's. Mar 21, 2021 · Locate the drainage fixture unit rating for your device or system in the UPC. Fixture Count Calculations for Mixed Occupancies As mentioned earlier, editions of the IBC prior to the 2009 edition did not explain how to determine fixture count calculations for buildings with mixed occupancies. qh ho re kr ga wk oj dz xr ua