What are the criteria for pump selection?
What information is required to make a pump selection?
- Liquid name. Knowing the liquid that you are pumping is vital as it allows us to ensure that we offer a pump constructed from compatible materials; thus avoiding potential corrosion and abrasion issues.
- Flow rate.
- Pressure.
- Viscosity.
- Density.
- Temperature.
How do you select a motor kW for a pump?
Using the bottom curve, determine the energy required by the pump in either brake horsepower (bhp) or kilowatts by finding the point for 400 gpm or m3/hr for impeller size “A.” According to the figure, the pump motor will use about 17 bhp or kW at this capacity.
How do you determine the capacity of a submersible pump?
The submersible pump stage calculation tells you how many stages are required. You find it by dividing the total dynamic head (TDH) by the length of each stage. The TDH is the equal to the sum of the pumping level, head length, drop pipe friction loss and check value friction.
How do you calculate head capacity of a pump?
- IMPORTANT NOTES :
- TOTAL HEAD CALCULATION:
- Total Head = suction Head + Delivery Head. Suction Head calculation = Suction vertical Height ( From Foot valve to Pump Centre) + Horizontal pipe line used + No of Bend (or) Elbow used in suction pipe line.
- Example :-
- Actul. Runnin.
- Actul Total Head. —-
- Head Conversion. Feet.
What is capacity of a pump?
Pump capacity is a term used to define the flow rate through a pump at its designed conditions. It describes the volume of liquid that is allowed to travel through the pump in a given time. Some of the most common units of pump capacity are: Gallons per minute (gpm) Liters/minute (L/min)
How do I choose a motor kW?
Multiply the motor voltage by the full-load current. The result is in watts. Divide watts by 1,000 to give kilowatts. For example, 230 volts x 20 amps = 4,600 watts; 4,600 watts divided by 1000 = 4.6 kilowatts.
How do you calculate pump flow rate?
Submersible pump flow calculation formula: 60HZ flow × 0.83 = 50HZ flow 60HZ lift × 0.69 = 50HZ lift 60HZ power ÷ 1.728 = 50HZ motor power motor output power = Q (flow) × H (head) / 367.2 / efficiency × 1.15 motor output power = shaft power × 1.15 pump efficiency = Q × H × 0.00272 / motor power Q represents flow; H …
What is pump capacity?
What is the capacity of submersible pump?
Borewell Submersible Pump, Capacity: 200 – 400 L/Min
| Capacity | 200 – 400 L/Min |
|---|---|
| Available Motor Power | 1 – 5 HP |
| Body Material | Stainless Steel |
| Operating Voltage | 220 – 440 V |
| Phase | Single, Three |
How do you calculate pump head and pump size?
It is represented by the letter H and is usually expressed by the height m of the liquid column. The pump head H=z+hw z is the height difference of the pumping height, that is, the water level from the inlet to the water surface at the exit.
How do you calculate submersible pump stage?
How is the performance of a centrifugal pump calculated?
Centrifugal pump performance capacity can be calculated in the following way: Q = b 1 · (π·D 1 -δ·Z)·c 1 = b 2 · (π·D 2 -δ·Z)·c 2 Q – centrifugal pump performance capacity, m 3 /s b 1,2 – widths of impeller pass through diameters D 1 and D 2,m
How to calculate single screw pump performance capacity?
Single-screw pump performance capacity can be calculated in the following way: Q = 4·e·D·T·n·η V Q – screw pump performance capacity, m 3 /s e – eccentricity, m
How is the performance of a multistage pump determined?
Having one and the same performance capacity the multistage pump will create greater head as against single-stage pump analogous to it. Centrifugal pump performance capacity can be calculated in the following way: Q = b 1 · (π·D 1 -δ·Z)·c 1 = b 2 · (π·D 2 -δ·Z)·c 2 Q – centrifugal pump performance capacity, m 3 /s
Which is the correct formula for gear pump capacity?
There is also an alternative formula for calculation of gear pump performance capacity: Q = 2·π·D Н ·m·b·n·η V Q – gear pump performance capacity, m 3 /s D Н – gear pitch diameter,m