20 ft of head can be easily converted to psi by using the specific weight of water: 62.4 lb/ft3 and converting the units to inches.
20ft * 62.4lb/ft3 / 144in2/ft2 = 8.67 psi
First you need the size of the pipe and the volume of water supply. Pressure will vary during usage. Standard well system operates between 20-40 psi and city systems operate from 50-70 psi.
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How high is the building and what are the GPM /PSI requirements of the fixtures
The inlet pressure can be as low as 45 PSI as long as there is a flow of about 3 gpm. The pump will easily pump it to 1500 psi through the appropriate nozzle
To determine the flow rate in gallons per minute (GPM) through an 8-inch pipe at 5 psi, you can use the Hazen-Williams equation or empirical formulas for flow in pipes. However, a rough estimate would suggest that at 5 psi, the flow rate would be approximately 600-700 GPM, depending on factors like pipe length, roughness, and fittings. For more accurate calculations, specific hydraulic calculations should be performed.
First you need the size of the pipe and the volume of water supply. Pressure will vary during usage. Standard well system operates between 20-40 psi and city systems operate from 50-70 psi.
To convert PN25 to PSI, you can use the conversion factor where 1 PN (Pressure Nominal) is equivalent to approximately 145 PSI. Therefore, to convert PN25 to PSI, multiply 25 by 145. This results in approximately 3625 PSI.
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To convert 0.50 MPa to psi, you can use the conversion factor: 1 MPa is approximately equal to 145.038 psi. Therefore, 0.50 MPa is approximately equal to 72.519 psi.
It depends on flow. 2 PSI for 500 GPM 8 PSI for 1000 GPM 18 PSI for 1500 GPM 32 PSI for 2000 GPM This is per 100' ft If your flows are big, ie. defensive conditions, you must relay for anything over a couple hundred feet in length. Capt. Ridgeway Tumwater Fire
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To convert MPa units to psi units, you can use the conversion factor: 1 MPa = 145.038 psi. Simply multiply the pressure in MPa by 145.038 to obtain the pressure in psi.
Head=Pressure X 2.3 For example: 70 psi. X 2.3 = 161 feet. Head=161 feet.
gpm and psi are two different measures that are not directly related, though a change in one will affect the other. To get the pressure at a certain point in your piping, you would need to measure it. Or, if you know that your pump is rated for 50 gpm at 80psi (1 foot water column = 2.31 psi) and your pump is lifting a column of water 15' (34.65 psi), then you should have about 45 psi residual. If you have long runs of horizontal pipe you may need to add some for pipe friction also.
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You need to know the PSI (pounds per square inch) and GPM (gallons per minute). PSI * GPM = cleaning power.
How high is the building and what are the GPM /PSI requirements of the fixtures