Water Pump Head Pressure Chart

A pump manufacturer conducts a variety of tests and the findings are then reflected on a graph which we refer to as the pump curve.

Water pump head pressure chart. Table of pressure conversions for water. This yields 23 81 psi which then must be added to the minimum usable water. The first thing we notice is that on the main vertical y axis we have head pressure and on the horizontal x axis we have the flow rate. If we turned the pump sideways and connected it to a pipe.

The pressure psi of a water pump operating with head 120 ft can be calculated with eq. The pump is pushing the liquid horizontally so there is no pressure but the water is flowing at its maximum flow rate. The pump head or discharge head of a water pump is a measure of the power of a pump. P 0 433 120 ft 1 52 psi example converting pressure psi to pump head feet.

Pressure can be measured either as part of a scale e g. This statistic is measured in meters or feet and is calculated by placing a tube on a pump s discharge and measuring the maximum height to which it can pump water. Feet head of water to psi feet head pounds per square inch feet head pounds per square inch 1 0 43 100 43 31 2 0 87 110 47 64 3 1 30 120 51 97 4 1 73 130 56 3 5 2 17 140 60 63 6 2 60 150 64 96 7 3 03 160 69 29 8 3 46 170 73 63 9 3 90 180 77 96 10 4 33 200 86 62 15 6 50 250 108 27. Note that this measurement represents the height of the hose elevation and not the length of the hose.

Apply the water head pressure calculation to a head loss computation. On that same note 1 pound per square inch can produce 2 feet of water head. If you have to pump water to the fifth floor of an apartment building and want to have 45 psi water pressure available to the occupants you can determine the minimum pump pressure required at ground level. Fluid flow equipment heat transfer vapor liquid equilibria agitation distillation instrument properties others.

Bar pascals psi or in terms of the height of a fluid e g. The greater the pump head the greater the pressure that the pump can generate. As we slowly. Pump sizing does the hydraulic calculation for a centrifugal pump and estimates differential head hydraulic power motor power npsh available.

What do these charts represent. A pump curve will typically show not just the maximum capabilities of the pump but just as important many pump curves will give information. For every foot uphill or downhill there is a change of 0 5 pounds per square inch of pressure. A pump performance curve is simply a graph or chart that represents the performance capabilities of a given water pump.

Pressure psi head ft pressure psi head ft 1. Table 3 1 indicates that 1 foot of water head or lift produces 0 5 pounds per square inch of pressure. Pump sizing calculation home fluid flow pump sizing. If the fifth floor is 55 feet high then divide 55 feet by 2 31 feet psi to determine the head loss of pushing the water up five floors.

The higher the height of liquid the greater the pressure it exerts at it s base.