Main Pump Types – Reciprocating, Diaphragm
In the next installment of our “equipment series”, we will discuss diaphragm pumps. A reciprocating pump uses positive displacment to move reciprocating (back and forth) parts through the use of a piston, diaphragm, and at times a plunger. While a piston uses an up and…
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Main Pump Types – Reciprocating Piston
In continuing with our series, Pumps 101, we are going to focus this entry on reciprocating piston pumps. Many pumps fall into the positive displacement arena, and they can generally be divided into two categories: reciprocating and rotary. Reciprocating pumps operate with the use of…
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Main Pump Types – Displacement
We have previously discussed the basics of pumps including power, classification, and more. In continuing with the series, we are going to focus on one of the most commonly used types of pumps, the displacement pump. As they are the most popular, the focus will…
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Pump Basics
A simple definition of a pump is that it is a form of turbomachinery or a piece of equipment with a mechanism that transfers fluid or another form of media without any human effort. One of the most common types of pumps is the centrifugal…
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Misalignment of the Pump Shaft – One of the Top Six Pump Vibration Problems
If your plant is being stretched to its financial limit, you may be looking for ways to simplify some of your processes and procedures. Replacement of underperforming equipment and other costly solutions aren’t always the answer, and sometimes going back to basics can be all…
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Bent Pump Shafts – One of the Top Six Pump Vibration Problems
As part of our series on the top 6 pump vibration problems, we would like to focus on bent pump shafts. A bent pump shaft can occur as the result of damage during operation, rigging, improper configuration, or even shipping. There are straightening methods that…
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Pump Flow Pulsation – One of the Top Six Pump Vibration Problems
Previously, we discussed the top 6 vibration problems that cause pumps to underperform or fail altogether. In this entry, we will discuss the issue of pump flow pulsation. Pulsation is the result of uncontrolled pressure waves caused by a change in flow. Media in a…
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Cavitation – One of the Top Six Pump Vibration Problems
Previously we discussed the top 6 pump vibration problems, with cavitation as the most prevalent. Now it seems appropriate to discuss cavitation further including its causes and prevention methods. In short, pump cavitation is the formation of cavities or bubbles in the pumped media that…
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Pump Impeller Imbalance – One of the Top Six Pump Vibration Problems
We have previously shared the top 6 vibration problems that lead to inferior pump performance. In this article we’ll discuss one of the more difficult ones: pump impeller imbalance. A number of factors can cause a pump’s impeller or other components to become imbalanced including…
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