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Hydraulic Pumps: Its Various Types and Operating Specifications

Date Added: June 22, 2009 10:20:23 PM
Author: IndustrialCOOP
Category: "P": Pumps

Hydraulic pumps are essential tools in order to pump fluid into the pump's own outlet.  They source out their power from mechanical forces and are capable of rotating and acting like a motor.  In order to get the best type of this pump, it is essential to look into how it operates at the same time check into the features it possesses.

Hydraulic pumps are subcategorized according to type and operating specifications.  As to the type, it can be an axial or radial piston, an internal or external gear or a vane.  As to operating specifications, it includes continuing and maximum operating pressures as well as operating speed, horsepower and temperature.  At times, it may also be maximum fluid flow and viscosity and pump weight.  Below are explanations on the types and operating specifications of a hydraulic pump.

The different types

The axial piston type of hydraulic pump is termed as such because it makes use of the so-called axially-mounted piston.  This is a crucial part in pressurizing fluid.  The process happens after the mechanical energy is utilized to power up the piston.  The piston then passes through the chambers of the pump and becomes responsible in pressurizing the fluid.

For the radial piston hydraulic pump, radially-mounted pistons are used.  In this type, an alternate motor may also be used to operate multiple pistons.  The power source is responsible in making the pistons move and pressurize the fluid.

Other types of pumps in this industrial product may further be explained from the name given to each category.  For instance, the internal gear pump makes use of internal gears while the external gear pump makes use of external gears.  As for the vane pump, it is obvious that a vane is used in the process.

The various operating specifications

The continuous operating pressure for hydraulic pumps is described as the maximum amount of pressure that provides proper functioning to the pump.  The maximum operating pressure, on the other hand, is also capable of providing the maximum amount of pressure to the outlet but only at an intermittent basis. 

Other operating specifications for hydraulic pumps include operating speed, horsepower and temperature. Looking at the pump's operating speed, this operating specification is defined as the number of revolutions (rotations of the moving parts) made by the pump per minute.  

The horsepower is computed depending upon the fluid's flow and pressure.  Operating temperature is also vital in the sense that it indicates the temperature variations that the pump is capable of withstanding.


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