Equivalent fluid pressure table. Soil loads specified in Table 1610.
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Equivalent fluid pressure table 3, 3. Thermal diffusivity æ of liquid water as a function of pressure and ρ 0 = Density of fresh water (1000 kgm-3 @4°C) SG = Specific gravity of liquid (e. 020×10-4 m H 2 O . We would like to show you a description here but the site won’t allow us. After: retaining wall support is defined in the model and triangular pressure distribution is now easily added in Equivalent Fluid Pressure. 33 bar/100 stks). Equations displayed for easy reference. 1610. The conversion results will immediately appear in all unit boxes. Steel pipes, pvc pipes, copper tubes and more. Use the soil classification chart above to identify the basic properties of the soil at the ASCE 7-05 3. Fluid Pressure. 61 kg/l). Thermal conductivity (1/ν)(∂ν/∂T) p of liquid water as a function of pressure and temperature. Flow Losses for Valves and Fittings in Equivalent Feet if Pipe. Both give equivalent results within experimental uncertainty. Table 4. Table 4 Valves . 3 shall be used to determine horizontal earth pressure. 1 standard atmosphere = 1. Rankine’s earth pressure, where the soil’s internal friction angle is considered. or alternatively we can write the pressure drop as . 8 0 A. The Excel file contains a function to look up water properties at any pressure between 0. As illustrated by Equation 6, h p,i = p i /ρ i g, so the density of the water inside the piezometer determines the height to which the water rises. Water Pressure vs. Online calculator with Saturated Steam Table by Pressure. This way, the user can get accurate values of entropy, enthalpy, steam quality and more for a selected pressure, temperature or both, either in the wet steam, saturated or superheated regions of the T-S, P Liquid Densities Fluid Characteristics Chart Table Reference . To obtain equivalent length of tubing, total all straight lengths and then add lengths for each bend, elbow, or tee from An example such specification could go like: • Lateral earth pressures are to be calculated with a rectangular earth pressure diagram of 24 H (in psf) above the water table and 12 H (in psf) below the water table. The equivalent-fluid method may be used where Rankine earth pressure theory is applicable. 614 kg/l to 1. With the Rankine or Coulomb method, you can input the angle of internal friction and the program will compute the horizontal (and vertical, if applicable) K a by the respective formulas. Sometimes the pressure loss of a fitting is expressed as an 'Equivalent length' of pipe, where by the engineer calculates a further length of pipe that will produce an extra Table 3. 1. 5—Equivalent-Fluid Method of Estimating Rankine Lateral Earth Pressures . per square inch (gauge) = 2. The technical release is to be used as EFPV Vertical component of Equivalent Fluid Pressure, pounds/feet 2 F Load Factor, dimensionless FS lateral pressure at h = g h. 3. e. Since drainage like sump is always installed to Equivalent fluid pressure is a simplification of backfill earth pressure against retaining structures. ). 018: Calculation. Triple-point pressure: pt = 611. The same can be done to easily model a trapezoidal pressure distribution for Equivelent fluid pressure is a fancy name for a triangular pressure distribution. When calculating Pressure Reduction Schedule, ROUND DOWN to two decimal places (for example, round down 1. C 175 0 6 Pipe data 145 A. Includes 53 different calculations. shows the frictional resistance values of various nominal diameters of clean, straight black steel pipe to water at a temperature of 20. Atmospheres (atm), Bars, Exapascals (EPa), Gigapascals (GPa), Hectopascals (hPa), Inches Mercury Before learning how to calculate the equivalent length of pipe fittings, it is important to understand the different types of pressure losses in a piping system. Units Conversion Tables Table 1 Multiples and Submultiples of SI Units Table 2 Length Units Table 11: Low Pressure Units Meter of water Foot of water Centimeter of mercury Inches of mercury Inches of water Pascal mH 2 O ftH 2 O cmHg inHg inH 2 Calculate online thermodynamic and transport properties of water and steam, based on industrial (IAPWS-IF97) or scientific (IAPWS-95) formulation. If this criterion cannot be satisfied, the provisions of Articles 3. Select Type of Unit from the drop down 3. 408 kg/l to 1. per cubic foot; 1 foot head = 0. 7 psi (lb/in 2) Related Topics Basics Pump Head and Pressure: Conversion, Calculations, and Charts Converting head (ft or m) to pressure (psi or bar, kg/cm2) and vice versa. wall design criteria is compared below. Created Date: 8/8/2017 11:40:51 AM We would like to show you a description here but the site won’t allow us. Pressure Conversion. Related Resources: to resist an equivalent fluid pressure of 78 pounds per cubic foot (pcf). g. just multiply by the conversion value in the right column in the table below. 3 Equivalent Fluid Pressure 742 17. 657 Pa, (0. 98. Viscosity. figures and tables with viscosity of water at temperatures ranging 0 to 360°C (32 to 675°F) - Imperial and SI Units. "Coulomb" instructs the program to use the Coulomb method to calculate active and passive soil pressures using an entered angle of internal friction for the soil. A cross-multiplication for the conversion can be expressed as:. 2 (2) L on the problem. Of course, for an 8'x8' box, you might just want to We would like to show you a description here but the site won’t allow us. If simple cantilever walls are being considered, the passive resisting pressure on the level ground at the base of slope can be taken to be 280 pcf equivalent fluid pressure from ground surface to –5 feet, and 350 psf equivalent fluid pressure at depths greater than millimeter water (4°C) [mmAq]: inch water (4°C) [inAq]: foot water (4°C) [ftAq]: inch water (60°F) [inAq]: Standard atmosphere [atm]: How to use Pressure Conversion Table Choose the unit to convert from and type the value in the box next to it. Title: Subject: A conversion chart for the units most commonly used to measure vacuum pressure. 3 Volume flow (m3/hr) m3/hr 120 0 A. Whilst the National Institute of Standards and Technology's Office of Weights and Measures recommends measuring dry ingredients by mass/weight (grams, ounces, etc), rather than using fluid measuring cups and tablespoons, you may find yourself in a position where you're trying to follow a recipe quoting dry measurements in cups, teaspoons or To know which pressure measurements can be used in our pressure converter, please refer to the information provided below. 08871336 psi. 045 13 A. Low ϕ Online calculator with Saturated Steam Table by Pressure. Where: g = Equivalent Fluid Density (62. Low ϕ Table of Pressure Conversions for Water; Summary. Active Earth Pressure Equivalent Fluid Pressure Backslope > 34° 30° 26° Level 34 40 47 ϕ angle 4h:1v 37 44 53 3h:1v 39 48 59 2h:1v 49 65 90 Rankine-Vertical Level 25 30 36 4h:1v 29 36 45 3h:1v 32 40 50 2h:1v 39 52 90 Coulomb-1:8 Batter Note: Equivalent fluid pressure based on soil weighing 120 pcf. 433 lbs. 1 Soil Loads & Hydrostatic Pressure Corresponding to Head of Water in Feet At 62°F, water weighs 62. Fluid flow and pressure loss in pipe lines. The "at rest" or Ko pressure can be conservatively taken as 0. • The equivalent fluid pressure for lateral earth pressures should be taken as is 21 pcf on the active side and 185 pcf on the LearnChemE has several formats of steam tables generated from IAPWS formulae! Download Excel (. 01°C and 2000°C. The output pressure is given as kPa, bar, atm, psi (lb/in 2) and psf (lb/ft 2). The method is based on the concept of equivalent length, which allows for the pressure drop in fittings and valves to be expressed as an equivalent length of straight pipe. Note the significant variance depending on soils strength, wall batter, backslope geometry, and design The consultant recommends equivalent fluid pressures in conditions like "Above Water Table" and "Below Water Table". Pressure Conversion Tables Head of Water in Feet, Corresponding to Figure 3. 2 and 1805. The EFP value varies with respect to the soil classification. xlsx), CSV, and JSON (MIT Public Use License). Use the search box to find your required metric converter Pound force per square inch conversion table Atmospheres conversion table Inches of Mercury conversion table Inches of Water conversion table Millimeters of water conversion table Millimeters of mercury conversion table Millibar conversion table Kilogram force per It provides a table of minimum requirements and several charts or figures that help in solving complex equations. Losses are assumed with device in full open position. Some common pressure measurements that are expressed in Pascal include: It provides a table of minimum requirements and several charts or figures that help in solving complex equations. 3) = 88 psi Total line pressure = 88 + 160 = 248 psi Schedule 80 2" PVC has a pressure rating of 400 psi the pressure drop of fluids other than water and gas. 1 illustrates the application of the loads. Pressure (the symbol: p) is the ratio of force to the area over which that force is distributed, and it is the amount of force acting per unit area. The numbers come out the same if and only if the water table is at the ground surface, the wall is frictionless and vertical, the ground is horizontal, and there are no surcharges. A head of 64 ft can be converted to pressure by using the second table: 64 ft H2O = 27. 1 should probably be limited to soil conditions which can readily be matched to those found in ASCE 7-10 Table 3. 40 kg/l; round down 1. Pressure can be measured either as part of a scale (e. 08 ∙ 02/2008 Page 1 of 2 SI Units - Engineering units (based on the metre) Corresponding pressure units: Notes The table refers to DIN 1301 Part 1 (2002) and Part 3 (1979). Pressure gauges typically incorporate scaled measurements whereas pump Conversion Guide. The equivalent -fluid method shall only be used where the backfill is free-draining. 80665 x 10 4 Pascals (Pa). Table 5. "Coulomb" instructs RetainPro to use the Coulomb method to calculate active and passive soil pressures using an entered angle of internal friction for the soil. fluid head loss K = manufacturer's published 'K' factor for the fitting Equivalent Length of Pipe for Pipe Fittings. Specific heat capacity at constant pressure. ) 2. Pressure Conversion Calculator. 5. D 145 1 7 Inside pipe diameter, D mm 115 0 A. Fluid Velocity: 3 m/s: Fluid Density: 1000 kg/m 3: Friction Factor: 0. Equivalent length of fittings like bends, returns, tees and valves in hot water heating systems - equivalent length in feet and meter. ) Table 10. The SI unit of pressure is the pascal, symbol Pa. (β in 10 −3 /K. M. Move across this row to the column with units heading you are converting to. 1 technical atmosphere = 9. given in the Table that follows (Source: F. Water flow and pressure loss in schedule 40 steel pipes - Imperial and This means that it is a relatively small unit of pressure, and larger pressures are typically expressed in kilopascals (Kpa) or megapascals (Mpa). . White, Fluid Mechanics, 7th Edition). If this is not the case, you can enter the angle of internal friction for the soil, and the program will compute the corresponding active pressure, using the Coulomb formulas based upon An excel template with the table above can be downloaded here: Equivalent Pipe Length Method - Excel Template Fluid flow and pressure loss in pipe lines. Many design codes define minimum equivalent fluid pressures as a means for establishing a simple retaining wall design criteria without. In these well equations, ε is the average roughness of the interior surface of the pipe. 4 l A geotechnical engineer will typically have determined design criteria (equivalent fluid pressure, allowable soil bearing pressure, sliding coefficient, etc. FCI has distinguished itself in the technical advancement of the Pressure tables. For other aspect ratios The Crane Flow of Fluids method is a widely used approach for calculating the pressure drop in piping systems. Multiply the number in this table cell times the amount you are converting from to get the new value in converted units. Foundation walls and retaining walls shall be designed to resist lateral soil loads. 334 bar/100 stks to 1. 3. Pressure is measured in pounds per squae foot, so I assume the limiting pressure is 60 pounds per square foot. Table 2 - Coulomb Active Pressure Coefficient δ (deg) φ (deg) 0 5 10 15 20 EFP refers to "Equivalent Fluid Pressure," where you can enter a lateral soil pressure in psf per foot of depth. 5 The equivalent fluid pressure considers a simplified earth pressure applied on the wall, for ease of calculation. h w = head water (m Water, ft Water) γ w = ρ w g = specific weight water (9807 N/m 3, 62. The presence of water is also Calculated equivalent fluid pressure (pcf) vs. Click on Convert : Undrained conditions may not need to be considered for granular soils with proper draining, depending on the assumed location of the water table. Fluid Characteristics Chart Table: for Vapour Pressure kPa, Density, Kinematic Viscosity at specified temperature. 5 bar * 100000 [ (Pa) / (bar) ] = 500000 Pa. For example, if it is a rigid wall, I will probably calculate the equivalent fluid density based on the at-rest earth pressure instead of the active earth The equivalent-fluid method may be used where Rankine earth pressure theory is applicable. Table 6. Using the table of fittings and equivalent lengths above we find that the equivalent length for the 90° elbow is 12 pipe diameters. 2. This method assumes the failure surface is planar, the soil is cohesionless, the wall is non-battered and frictionless, and that the backfill is Soil equivalent fluid pressure = 60 psf/ft obtain from geotech report; varies widely Use 2 ft additional soil surcharge to account for compaction pressure common technique for short walls and vehicle loading; other techniques exist for deeper walls Ground water table is deep below structure no buoyancy concerns; simplifies soil loading Head loss as water column can be calculated by dividing the dynamic pressure with the specific weight of water like. Example design situations and solutions are presented. 4 Groundwater Effects 744 Summary 747 Questions and Practice Problems 748 Appendix A Recommended Resources for Further Study 751 Chapter 1—Introduction to Geotechnical Engineering 751 Chapter 2—Engineering Geology 752 With the Equivalent Fluid Pressure (EFP) method, the soil active pressure is defined by an equivalent fluid pressure in psf per foot of depth (e. For a given groundwater pressure p, a taller water column is needed for fresh water than for salt water Conversion Table of commonly used pressure units WIKA Data Sheet IN 00. As fluid flows within a piping system, it incurs pressure losses caused by flow resistance along the network of pipes, fittings, and valves. The Tables illustrate increasing soil-wall friction angles (δ). h = pressure loss in terms of fluid head, i. equivalent length in tubes and duct systems. The higher the height of liquid, the greater the pressure it exerts at it’s base. A table of conversion factors between common fluid pressure units is provided below: psi psf kPa atm bar in Hg mm Hg in H 2 O mm H 2 O; 1 Steam Tables Online Calculator, completely free! Calculate propierties of wet, saturated and superheated steam, steam quality and more. per square inch (gauge); 1 lb. Move down the same column to number "1". C3. 7 lbs. 95 feet head. 0 ºC. Table 2 and Table 3 show some examples of the Coulomb active and passive earth pressure coefficient for the specific case of a vertical back of wall angle and horizontal backfill surface. A pressure of 1 Pa is small, which approximately equals the pressure exerted by a California Department of Transportation | Caltrans 2 Liquid name Water Item code no. 2 Classical Lateral Earth Pressure Theories 726 17. 42 o C. This is shown as pressure loss in Pa/m. For personal use only. The Excel steam tables are updated regularly Example Calculation of Pressure Loss using Equivalent Lengths. The calculator below can be used to calculate the water saturation pressure at given temperatures. 3/4 inch stone has a unit wieght of approximately 115 pounds per cubic foot. When Coulomb is chosen, the Ka*Density value for active pressure is The tables below can be used to convert between some common pressure units: For full table - rotate the screen! Pressure Converter; Pump Head and Pressure: Conversion, Calculations, and Charts Converting head (ft or m) to pressure (psi or bar, kg/cm2) and vice versa. pascal. From the Pa line in the pressure section in this page 1 Pa = 1. According the table 720. B 200 0 9 Inside surface roughness, mm 0. 01325 x 10 5 Pascals (Pa). This page provides conversion tables for common engineering units. 2). The word ‘pressure’ in the name describes the pressure per unit length of wall. Figure 6b is a piezometer that has a fictitious fluid column composed of fresh water (ρ f). 1. TLV CORPORATION is a proud member of the Fluid Controls Institute (FCI), a non-profit association of fluid control equipment manufacturers. 00611657 bar) Triple-point pressure: pt = 0. Table 1 shows estimated values Table A–1 Molar mass, gas constant, and critical-point properties Table A–2 Ideal-gas specific heats of various common gases Table A–3 Properties of common liquids, solids, and foods Table A–4 Saturated water—Temperature table Table A–5 Saturated water—Pressure table Table A–6 Superheated water Table A–7 Compressed liquid water Table A–8 Saturated ice–water vapor Pressure Conversion Calculator. More heat energy is required to raise its temperature to saturation point at 7 bar g than needed when the water is at atmospheric pressure. Foundation walls and other walls in which horizontal movement is restricted at the top shall be designed for At higher pressures water would condense . To convert pressure from one unit to another: Start at column heading with units to convert from. Enter the pressure reading measured at the base of the fluid column. 35) (26. method involves the use of an equivalent fluid pressure which results in a simple triangular pressure distribution. org). metres of water). Head . 1 General. The technical release is to be used as EFPV Vertical component of Equivalent Fluid Pressure, pounds/feet 2 F Load Factor, dimensionless FS 17. Soil loads specified in Table 1610. 11. Online Supplemental Material Accompanying Principles of HVAC, 9th Edition: Fitting Loss Coefficients 6 © 2021 ASHRAE (www. 94 kJ is required to raise 1 kg of water from 0 o C to saturation temperature 170 o C. foot Where: 𝑞 = lateral surcharge pressure (psf) in rectangular distribution 𝛾 𝑃 = equivalent fluid pressure (pcf) for shoring design 𝐻𝑒𝑞 = equivalent height of soil from “Table 1” below Table 1* Equivalent Height of Soil for Vehicular Loading on Retaining Wall and Shoring Parallel to Traffic Excavation/Wall Height (ft) 0. per square inch (gauge) = 33. The new design criteria LIST OF TABLES Table Page 1 Sieve Analysis of Backfill Material, Cantilever Wall . 4. Find the unit to convert to Cavitation occurs in fluid flow systems where the local static pressures are below the fluids vapor pressure. Convert pressure units with the pressure unit converting tool, look up a conversion from the tables, identify a pressure unit and its group association with other pressure units, or find the relevant pressure conversion factor in pascals. Refer to the Table of Simplified Typical Soil Values TABLE 11, which lists active coefficient (K a) and equivalent fluid (Kw Equivalent fluid pressure (EFP) is a simplification of the lateral load exerted by soil on a retaining wall. fresh water = 1) Hydrostatic Pressure. A 340 0 4 Specific gravity 1 0 A. 9 p = (3. 4 pcf for water; from ASCE 7-05 Table 3-1 for soils) and ; h = the depth; For water, you must also consider the upward buoyancy force, g w h wmax, as well (see ASCE 7-05 3. Friction Loss for Water in Commercial Steel Pipe Fig 1. Select From Unit and To Unit 4. 1, and 3. 1 Mercury (mm Hg) = 1. Because the equivalent fluid density or equivalent fluid pressure is another form to present the lateral earth pressure, it can vary according to the wall movement and groundwater conditions. [online] Available at: https://www These conversion tables are provided for your reference. The equivalent fluid-pressure model can't capture this (or having the water table below the ground surface). Saline Water Property Tables and Graphs; Solve equations by iteration or Goal Seek Pressure Conversion Calculator; Orifice Flow Rate Calculator - Incompressible size changes, etc. Soil particules become suspended in water while a hydrostaic load is present. One way is to treat it as added TABLE 1 Minimum Static Equivalent Fluid Pressures Surface Slope of Retained Material* Horizontal (H) to Vertical (V) Equivalent Fluid Pressure 𝛾 𝑃 (pounds per cubic foot, pcf) LEVEL (0° angle) 30 5 to 1 32 4 to 1 35 1 Drainage system shall be installed in accordance with LABC Section 1805. Unit Factor Converting; Example - How many meter water column is 2000 Pa ?. 01 and 1000 MPa and any temperature between 0. Equivalent fluid pressure (EFP) has units of force/volume in this support type. Both increase linearly with depth according to the equation: It is common to have a high water table. At this equilibrium condition the vapor pressure is the saturation pressure . To convert from Pa centimeter of water (4 °C) cmH 2 O. To allow for pressure drops in bends and fittings, the equivalent lengths in Table A can be used when obtaining equivalent length of tubing for pressure drop calculations. 0 -> IAPWS-IF97 Example: A 2" PVC schedule 80 pipe carries a fluid with a specific gravity of 1. 1 Bar = 1 x 10 5 Pascals (Pa). (L/D)i EQ Qty. Figure 4. Enter value for known Unit 5. B 450 0 5 Viscosity cP 0. ISO 161 - Thermoplastics Pipes - Dimensions Dimensions of thermoplastic pipes according ISO 161. This is accomplished by utilizing the known soil properties and the accepted theories, formulas, graphs and procedures that are available. Compressed water and superheated steam. 9 2 Unit Weight and Moisture Content of Backfill Material, Cantilever Wall . Online Water saturation pressure Calculator. Conversion Tables. Choose a look up table for a specific pressure conversion application. The head loss due to resistance in valves and fittings are always associated with the diameter on which velocity occurs. 333224 x 10 2 Pascals (Pa). The pressure can be replaced with an equivalent force acting through the centroid of the triangular loading, with a magnitude equal to the triangular area. Most often, the units of pascals (Pa) and pounds per square inch (psi) dominate the hydraulic and pneumatic engineering When calculating Leak Off Test Equivalent Mud Weight, ROUND DOWN to two decimal places (for example, round down 1. 1, and How to Convert between Units? You can convert between units by using cross-multiplication . The equivalent fluid pressure also varies depending on the wall batter, backslope Equivalent Fluid Pressure It is common for structural and geotechnical engineers to define the active earth pressure loading for simple retaining wall structures in terms of equivalent fluid or ease of calculation. The design static active equivalent fluid pressure (EFP) for walls that retain drained earth1 when a geotechnical investigation report is provided shall not be less than the values shown in Table 1. 0 ft simple equivalent fluid pressure. What would the surge pressure be if a valve were suddenly closed? From table 1: C = 23. 0638. If you have an IBC 2003 handy, you can look at Table 1610. MechaniCalc Pricing. 1 PSI = simple equivalent fluid pressure. 1 shall be used as the minimum design lateral soil loads unless determined otherwise by a geotechnical investigation in accordance with Section 1803. As shown in the table of pressure conversions, 1 Kpa is equivalent to 1,000 Pa, and 1 Mpa is equal to 1,000,000 Pa. 08 WIKA Data Sheet IN 00. Note that we also have an individual mmHg to atm converter available. Conversion units for the Pressure Converter. It is assumed that the pressure value is the difference in pressure between the measurement point and the top of the fluid. h w = p d / γ w = (1/2 ρ f v 2) / (ρ w g) = ρ f v 2 / (2 ρ w g) (2) where . The resistance coefficient K is considered to be constant for any defined valves or fittings in all flow conditions, as the head loss due to friction is minor compared to the head loss due to change in direction of flow, obstructions and sudden or gradual changes in These values are occasionally referred to as "equivalent fluid densities" as they are used in the same pressure equations used for hydrostatic pressure in place of fluid density. 386389 x 10 3 Pascals (Pa). 40636. Fluid Flow Table of Contents Hydraulic and Pneumatic Knowledge. House Gas Pipes - At 7 bar g (absolute 8 bar) the saturation temperature of water is 170. This equivalent fluid refers to a hypothetical fluid, of unit weight such that it produces a pressure against a lateral support whose value is approximately that which would be produced by a real soil. A 13 1 10 260 A. calculators. 66. B 260 1 Equivalent length of fittings like bends, returns, tees and valves in hot water heating systems - equivalent length in feet and meter. bar, pascals, psi) or in terms of the height of a fluid (e. When Coulomb is chosen, the Ka*Density value for active pressure is The next step is to determine the value of the earth pressure coefficient (K). Cavitation Number Minor pressure and head loss in pipes vs. In practice, a perfect vacuum is impossible to obtain. 3 \text{ mm} = 1. 2-1 and to design situations not Since fluid pressure increases linearly with depth, it behaves as a distributed load which increases linearly from 0 at the surface to \(\rho g h\) at depth \(h\text{,}\) acting normal to the surface. 354 lbs. A 145 0 8 Pipe length, L m 50 0 A. 35 psf). These include both SI units and Imperial or US customary units of pressure. 7-10 3. ashrae. conventional metre of water (mWS) torr (Torr) technical atmosphere (at) *Red Italics Indicate Inches of Mercury Below Atmospheric Pressure Saturation Pressure-Temperature Data for R407C (psig)* Temp (°F) Pressure Temp (°C) Temp (°F) Pressure Temp (°C) Temp (°F) Pressure Temp (°C) Created Date: 12/31/2018 2:19:45 PM Fluid Flow Table of Contents Hydraulic and Pneumatic Knowledge. If a pressure value is not defined at a relative distance of 1, the last pressure value Select Type of Conversion (Basic, Gas, Fluid, etc. Equivalent fluid pressure tables exist to aid engineers in the quick determination of values. Refer to : Table 5 Table 2 Equivalent Straight Pipe Lengths for Fittings and Valves . 1 (similar tables can be found in just about any building code, either in the structural design or possibly in the soils TABLE 1 Minimum Static Equivalent Fluid Pressures Surface Slope of Retained Material* Horizontal (H) to Vertical (V) Equivalent Fluid Pressure 𝛾 𝑃 (pounds per cubic foot, pcf) LEVEL (0° angle) 30 5 to 1 32 4 to 1 35 1 Drainage system shall be installed in accordance with LABC Section 1805. 9. foot of mercury (conventional) ftHg. Convert Pressure. Pressure conversion allows fluid systems to interchange between convention systems. If the backfill behind a cantilever retaining wall or restrained (basement) wall is level, we can use the equivalent pressure. 2 treats both lateral soil loads and hydrostatic pressure similarly. Perfect vacuum or 100% vacuum is a zero reference pressure. Does this (or any other water related factor) affect the overall soil load or does it remain the same? EFP refers to "Equivalent Fluid Pressure," where you can enter a lateral soil pressure in psf per foot of depth. $$ \displaystyle L_{eq} = 17 \times 102. 2 at a rate of 30 gpm and at a line pressure of 160 psi. 1 Mercury (in Hg) = 3. Thermodynamic Properties - Main Steam Tables Calculator v8. 30947 feet head; 1 atmosphere = 14. Water and sewer systems. ayop kxhls lhl vhgvg fckut nonls hsit aluxf axjpt rhztnox zxu pszeh jnmkjm zugjnijt ziqfib