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An Overview of Pumps

Pump Definition

A pump is a device that moves fluid through mechanical action. Depending on the method used to move the fluid, the pumps can be divided into three main categories: direct lift, displacement and gravity pumps. Pumps have many sources of energy, including manual operation, electricity, electric motors or wind power; pumps are available in a variety of sizes, from micro sanitary pumps for medical applications to large pumps for industrial use.

Pump types

According to its displacement method, the pump can be divided into a positive displacement pump, an impulse pump, a velocity pump, a gravity pump, a steam pump and a valveless pump. The two basic types of pumps are positive displacement and centrifugal pumps. Although axial pumps are generally classified as separate types, they have essentially the same operating principles as centrifugal pumps.

Mechanical pumps

Mechanical pumps are suitable for many applications such as pumping water from wells, aquarium filtration, pond filtration and aeration. In the automotive industry, mechanical pumps are used for water cooling and fuel injection; in the energy industry they can be used to pump oil and natural gas or to operate cooling towers; in the medical industry, they are used to develop and manufacture biochemical processes in medicines, as well as artificial substitutes for body parts, especially artificial heart and penile prostheses; when used in areas where high levels of health are required, sanitary pumps are often used, which perform better than industrial pumps.

Pump repairs

Checking pump maintenance records and Mean Time Between Failure (MTBF) is important for responsible pump users. Given this fact, the preface to the 2006 Pump User Manual implies “pump failure” statistics. For convenience, these fault statistics are typically converted to MTBF (in this case, the lifetime is installed before the fault). Unplanned maintenance is often one of the most important cost of ownership, and mechanical seals and bearing failures are one of the main reasons. Remember to choose the potential value of the pump that was originally expensive, but it will be much longer between repairs. Sanitary pumps have higher specifications, are less prone to damage, and have lower maintenance costs.

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