A metering pump is a special class of reciprocating pump. It is used for injecting very small, precisely controlled volumes of liquids into products or…

Plunger pumps are used for very high pressure applications, 1000 psig or greater. Examples are glycol circulation and amine circulation in gas plants. See Figure…

Piston pumps are used for moderately high pressures. They are used in some special services, such as emergency and shutdown services, where pipelines must be…

Positive displacement pumps move a fixed volume of liquid per unit of time. Although less common than centrifugal pumps, they are used for certain special…

When two pumps are operated in series, as shown in Figure 9, the net pump curve can be constructed by adding the head for each…

The process performance of a centrifugal pump is described by a curve called the head versus flow characteristic. See Figure 7. Centrifugal pumps are constant-head…

Horizontal-Single Stage – The most common type – Used for moderate head,

Figure 4 illustrates the major components of a centrifugal pump. This is a diagram of a horizontal single-stage, overhung pump which is the most common…

Head is the term used to describe the energy imparted to the liquid. The units of head are foot-pounds (ft-lb) of force per pound of…

A pump converts mechanical energy into pressure in a flowing liquid. A centrifugal pump does this by centrifugal action. Refer to Figure 2. A centrifugal…