#1 PSI TO FT OF WATER FULL#
#1 PSI TO FT OF WATER PLUS#

With a liquid with a specific gravity of 1.2 (10 pounds per gallon) at the same 23.1 foot level, the pressure gauge would read 12PSI. Therefore, 50 pounds per square inch converted to feet of water is equal to 115.5 ftH2O.

So, to convert 50 psi to ftH2O, multiply 50 psi by 2.31 ftH2O. For example a tank with 23.1’ of water level would read 10PSI on a pressure gauge at the bottom of the tank. Solution: Converting from pounds per square inch to feet of water is very easy. For liquids heavier than water, the pressure exerted is greater for the same vertical level. We calculated this psi above by dividing the weight of a cubic foot of water by the number of square inches in the bottom of the cubic foot: (62.4796 / 144 sq. Every 2.31’ of vertical level = 1 PSI for water and liquids with a specific gravity of 1 (or 8.34 pounds per gallon). TDH or total dynamic head is another common term for describing pressure across a pump. 0PSIG is equal to 14.7PSIA at sea level or 33.9’ of water column (atmospheric pressure decreases with altitude, for example: 14.2PSIA at 1000 ft. This takes into account atmospheric pressure. 1 psi to foot of head 2.30725 foot of head 5 psi to foot of head 11.53625 foot of head 10 psi to foot of head 23.07249 foot of head 15 psi to foot of head 34. PSIA is pressure per square inch absolute. Likewise, if the suction pressure was negative -5PSI (~10”HgV) such as a suction lift application where the liquid level is below the pump, the pump would have to develop 55PSI (-5+55) to achieve the total discharge pressure of 50PSI. If 50PSI is the desired discharge pressure and you have +10PSI on the suction side, the pump needs to develop 40PSI for the total discharge pressure to equal 50PSI (+10+40).

#1 PSI TO FT OF WATER PLUS#

DP is the pressure on the suction side of the pump plus the pressure on the discharge side of the pump in relation to the desired discharge pressure. Differential pressure is used for pump and motor selection as it is the actual pressure the pump sees. These are common values used in America, but pressure can be translated into metric and other terms.ĭifferential pressure (ΔP or delta P or DP) is the difference in pressure across the pump. Negative pressure is usually stated in inches of mercury vacuum, HgV.

PSI is usually stated in gauge pressure as PSIG, the pressure you read on a pressure gauge. PSI is usually associated with positive displacement pumps and TDH with centrifugal pumps, but the terms are interchangeable. Two common descriptions of pump pressure are PSI (pounds per square inch) and TDH (total dynamic head). The dynamic pressure in a fluid flow can be expressed as pd 1/2 f v2 (1) where pd dynamic pressure in fluid (Pa, psf (lb/ft2)) f density of fluid (kg/m3, lb/ft3) v fluid velocity (m/s, ft/s) 1 Pa 10-6 N/mm2 10-5 bar 0.1020 kp/m2 1.02x10-4 m H2O 9.869x10-6 atm 1.

#1 PSI TO FT OF WATER FULL#

Symbols, abbreviations, or full names for units of length,Īrea, mass, pressure, and other types.Pounds per Square Inch and Total Dynamic Head Shows the relationship between pressure and head. You can find metric conversion tables for SI units, as wellĪs English units, currency, and other data. 561 ft Boosted water elevation: 497 ft Pressure required at the house: 30 PSI Unknown: Water elevation to provide 30 PSI to the house Conversion: 1 PSI. The calculation above shows that 1 foot of head is equivalent to 0.433 psi. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.Ĭonversion calculator for all types of measurement units. The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lbf/in²) is a unit of pressure or of stress based on avoirdupois units. You can do the reverse unit conversion fromįoot of water to psi, or enter any two units below: Enter two units to convert From:

1 psi to ft of water