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2022年9月20日 · The head of a pump is a physical quantity that expresses the pump’s ability to lift a given volume of fluid, usually expressed in meters of water column, to a higher level from the point where the pump is positioned.
- Beprime
2021年8月21日 · With centrifugal pumps, these calculations typically deal with calculating a pump’s total head to select the optimally sized pump required. While referencing the existing pump and how it works would be the easiest, there are scenarios where a user cannot access that data.
- Converting Head to Pressure
- Converting Pressure to Head
- Example - Converting Pressure - Psi - to Pump Head - Feet
- Head vs. Pressure When Handling Liquids of Different Density
Converting head in feet to pressure in psi
Pumps characteristic curves in feet of head can be converted to pressure - psi- by the expression:
Converting head in metre to pressure in bar
Pumps characteristic curves in metre of head can be converted to pressure - bar- by the expression:
Converting head in metre to pressure in kg/cm2
Pumps characteristic curves in metre of head can be converted to pressure -kg/cm2 - by the expression:
Since pressure gauges often are calibrated in pressure - psi or bar - a conversion to the heads commonly used in pump curves - like feet or meter - may be required.
The head in feet water column can be calculated from pressure 100 psi with eq. 3 as: Where specific gravity of water = 1.
Identical pumps will develop the same head when running at the same speed but the discharge pressure is quite different due to the different densities of the liquids. It can be simpler to discuss the performance pumps in terms of head rather than pressure since the use of head makes the pump curve applicable to any liquid regardless of density.
Imperial Units Zs = suction height from reference, ft //SI Units Zs = suction height from reference, m. Zd. Imperial Units Zd = discharge head from reference, ft //SI Units Zd = Discharge head from reference, m. H = pump head. Imperial Units H = pump head, ft // SI Units H = pump head, m.
Below, the world factory pump valve network introduces the pump head calculation formula in detail. The head is usually the maximum height that the pump can lift, and is indicated by H. The most commonly used pump head calculation formula is H = (p2-p1) / ρg + (c2-c1) / 2g + z2-z1.
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2017年9月11日 · In this article we learn how to perform pump calculations in both imperial and metric units to assess pumping performance following the change of flow rate, pump speed, head pressure and power. These formulas are common practice rules of thumb and provide
The Pump Head Calculation Formula is quite simple, yet it can be daunting to calculate by hand. It is calculated using the following formula: Pump Head = (Pressure Head + Elevational Head + Friction Head) / Specific Gravity
