ILLUSTRATED SOURCEBOOK of MECHANICAL COMPONENTS
SECTION 26
PUMPS
Pumps: Major Classes and Types
26-2
How Pumps Work
26-5
Centrifugal Pumps
26-6
Rotary Pumps
26- 1 2
Reciprocating Pumps
26- 1 3
Pump Applications
26-17
Pump Selection
26-23
Other Considerations in Choosing Pumps
26-25
Priming Pumps
26-26
Find How Much Horsepower to Pipe Liquids
26-27
26-2
Pumps.. . Major Classes and Types
ne of man’s oldest aids, the pump today ranks second only to
0
the electric motor as the most widely used industrial
machine. Anything that will flow is pumped-from highly volatile
ether to thick muds and sludges. moltem metals and liquids at
1000 F, or higher, pose few real problems for modern pumps.
Though the origin of pumps is lost in antiquity, we do know that
crude pumping devices provided water for ancient Egypt, China,
India, Greece and Rome. Today the US. alone draws more than
200 billion gallons each day from its water resources and pumps
move almost every drop. Of this total, an impressive 80 billion gal-
lons is said to be industry’s share.
To meet these demands we find an almost confusingly large vari-
ety of available pumps. They range from tiny adjustable displace-
ment units to giants handling well over 100,000 gallons per
minute. Number of designs soars into the hundreds, some differing
in elements as small as packing glands, some in the entire princi-
ple of operation.
It’s neither possible nor desirable to cover every variation in a con-
cise practice practical handbook or manual. So we’ve made a high-
ly selective choice of widely used industrial pumps of all classes and
types - the pumps you’re likely to run into in your work. And
we’ve stuck to units using mechanical means to move liquid from
one point to another, putting aside for a time such devices as ejec-
tors, hydraulic rams, etc.
So you’ll find the important facts about industrial pumping in
easy-to-read form in the following pages. Put them to work
improving the effectiveness of your pumping operation