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Understanding Your Hydraulic Pump Needs

PVM Replacement Hydraulic Pumps

Designing a new hydraulic system or making rapid repairs to an existing system can require an understanding of various hydraulic pump options. How can you determine your hydraulic pump needs? Explore the most common pump types and applications before ordering a new pump or replacement part for your commercial application.

How Pumps Operate

All pumps power a hydraulic system to move hydraulic fluid throughout a series of lines. As the pump activates, the pressure increases in the system to perform the necessary movement. Beyond this basic operation, and a pressure relief valve for safety reasons, hydraulic pumps operate in varying ways to accomplish the goal. Explore the differences and similarities between gear, centrifugal and piston pumps to determine the type of pump used in your existing machinery.

Gear

Choose a gear pump for space-saving convenience. These highly efficient pumps can produce pressure levels up to 3,000 psi. These benefits make gear pumps a popular option for mobile applications. This type of pump works best at top speed, so it may not be the best option if you have a low-pressure application.

A gear pump creates pressure by using two different gears with interlocking teeth. One gear is attached to the driveshaft. The driving gear offers fixed, positive displacement for your application. It powers the idle gear as it rotates to pressurize the hydraulic system. There are two basic designs of gear pumps:

  • Internal gear
  • External gear

Centrifugal

A centrifugal pump uses an impeller to move fluid. The radial flow pump is one of the most common types and includes a propeller-shaped component. Because these pumps don’t use a positive displacement design, the pressure or speed of outflow will vary based on the inlet pressure. One of the most popular applications for centrifugal pumps is in the oil and gas industry.

Piston

Create alternating suction and discharge using a radially or axially mounted piston in a piston pump. These dependable pumps can allow pressures up to 5,000 psi, which is higher than the pressure ratings of comparable gear pumps. They are most costly to create and maintain, but the intense pressure and reliable displacement make them crucial in many industrial applications.

Piston pumps can offer either fixed or variable displacement. Variable displacement piston pumps, unlike the fixed displacement gear and piston alternatives, are capable of adjusting the discharge fluid volume without altering the engine speed. This means that you can increase or decrease the discharge and hydraulic pressure simply by adjusting the angle of the swashplate.

What Are Your Hydraulic Pump Needs?

Hydraulic pumps by Panagon Systems are capable of replacing a range of OEM pumps. Consider your existing commercial equipment to see what type of pump you may need. Replacement pumps should be the same design and operating perimeters of the original. If you’re designing a new hydraulic system, you can compare the specifications of each pump model at Panagon Systems to find the most suitable option.

Mobile Machinery

Most construction equipment uses at least one hydraulic pump. Tractors, dump trucks, cranes, forestry equipment and road graders are just a few examples of mobile machinery that use hydraulic pumps to power their moving components.

Industrial Manufacturing

In industrial applications, you can expect to find gear, piston, or centrifugal pumps in injection molding machines, conveyors, mixers, pallet jacks, and mill machinery. Severe applications requiring intense pressure rely on the high-pressure output of gear or piston pumps.

Review the existing pump to see if there are any maintenance issues before replacing the entire pump. A low-pressure or erratic-pressure pump may be restored with a few affordable replacement pump parts. With the right specifications, you can restore your equipment and continue to offer industry-leading services.

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