graphics byHarlan
Wallachcopyright 1994
This Web Page is designed to give a brief introduction
to common types of pumps. It decifers between the two types of pumps and
some of their subcategories. It also contains some data on specific pump
types that can be used to choose the ideal pump for a specific problem.
What is a pump?
A pump is a device that raises or transfers fluids. Pumps
are selected for processes not only to raise and transfer fluids, but also
to meet some other criteria. This other criteria may be constant flowrate
or constant pressure.
What kind of pumps are there?
There are two main categories of pumps and they are dynamic
pumps and positive displacement.These
two categories also have many subcategories of pumps.
What are pumps used for?
Pumps are used for a variety applications. Here is a list
of a few applications:
Drainage - Used to control the level of water in a protected
area.
Sewage - Used in the collection and treatment of sewage.
Irrigation - Used to make dry lands agriculturally productive.
Chemical Industry - Used to transport fluids to and from
various sites in the chemical plant.
Petroleum Industry - Used in every phase of petroleum production,
transportation, and refining.
Medical Field - Used to pump fluids in and out of the body.
Steel Mills - Used to transport cooling water.
What are some important factors in deciding on the right
pump?
The selection of the pump class and type for a certain application
is influenced by system requirements, system layout, fluid characteristics,
intended life, energy cost, code requirements, and materials of construction.
