Using the pump selection table below to determine the best pump for the given condition: • A flow of 5 L/s and a head of 16 m 600 800 1000 1600 30 40 50 60 80 100 180- 140 50-32/26 50-32/20 I 90 80- 70 60 50 8 20 18- 16- 14 1 50-32/16 40-32/13 678910 15 20 200 300 400 500 600 800 1000 80-50/32 65-40/26 65-50/2680-65/26 65-50/20 80-65/20 65-50/16 65-50/13 40 50 60 70 80 100 65-40/32 65-40/20 65-40/16 65-40/13 200 300 400 R 100-65/32 80-65/13 100-80/32 -8 100-80/26 80-65/16 100-80/20 100-80/16 125-100/26 175-100/20 125-100/16 2000 02/521-051 2900r/min 150 200 300 400 500 70 80 90 100 150 2500 Imp.g.p.m Q 3000 US.g.p.m 300 I JU 8888 8 8 8 H (ft) 600 mah Q L/s
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.


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