# How are pumps selected?

## How are pumps selected?

Among the considerations in selecting a pump are the maximum flow needed in gallons per minute (gpm), the head it needs to pump against, and the accuracy needed for flow control. The positive displacement pump is commonly used to feed chemicals into the water or to move heavy suspension, such as sludge.

## What are the factors affecting selection of pump?

Below are process liquid properties that must be considered before selecting a pump.

• Liquid viscosity.
• Temperature.
• Specific gravity.
• Vapor pressure.
• Solids present & concentration.
• Shear sensitive.
• Abrasive or Non-abrasive.

What are the factors considered for the selection of pumps for shallow and deep well?

Five main factors must be considered when selecting a pump: 1 the total water required per day; 2 the maximum rate of flow desired; 5 the total head against which the pump must operate.

How do I calculate water pump?

Quick Formula

1. Water horsepower = minimum power required to run water pump.
2. TDH = Total Dynamic Head = Vertical distance liquid travels (in feet) + friction loss from pipe.
3. Q = flow rate of liquid in gallons per minute.
4. SG = specific gravity of liquid (this equals 1 if you are pumping water)
5. Water horsepower =

### Why is pump selection important?

An irrigation pump ill-suited to your operation can result in wasted energy and added cost. For the best results, do your homework!

### How many types of pumps do we have?

There are three basic types of pumps: positive-displacement, centrifugal and axial-flow pumps.

What 5 points should be considered when selecting a good pump?

Before you can select a pump that will fit your needs, you must know four things: 1) the total head or pressure against which it must operate, 2) the desired flow rate, 3) the suction lift, and 4) characteristics of the fluid.

What are the basic pump types?

## How many gallons per minute does a 1 hp pump?

One horsepower equals 3,960 gallons/minute/feet.

## How to select a pump for a SlideShare?

Selection of Pump  Pump will operate at intersection of pump curve and system head curve. For duty point of 550 [email protected] 98 ft. T.D.H., select 4 x5 x 12 –340 pump with 20 H.P., 1750 R.P.M. motorDO NOT!Over calculatepump headrequirement 1) Higher driver H.P. will be required. 2) Possibility of cavitation (pump noise vibration and internal damage)

What are the factors involved in pump selection?

Pump Selection and Applications ã2005 Pearson Education South Asia Pte Ltd 13.2 Parameters Involved In Pump selection • When selecting a pump for a particular application, the following factors must be considered: 1. The nature of the liquid to be pumped 2. The required capacity (volume flow rate) 3.

How to choose a pump for an application?

Pump Selection and Applications ã2005 Pearson Education South Asia Pte Ltd 13.2 Parameters Involved In Pump selection 6. Specifications for driver (for example: for an electric motor—power required,speed, voltage, phase, frequency, frame size, enclosure type) 7. Coupling type, manufacturer, and model number 8. Mounting details 9.

### What are the different types of pump types?

Pump Selection and Applications ã2005 Pearson Education South Asia Pte Ltd 13.3 Types of Pumps • Pumps are typically classified as either positive- displacement or kinetic pumps. • Table 13.1 lists several kinds of each. 17. 13.

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