Fluid Power Journal

Test Your Skills: The Application and Operation of Transducers

In closed loop control applications, it is necessary to convert some physical property into an electrical signal to provide a feedback signal to the amplifier. …

Test Your Skills: Sizing and Selecting Vacuum Pads

Vacuum pads are primarily used for handling smooth-surfaced material but can be used with textured or irregularly shaped material as well. Because sheet glass …

Test Your Skills: Replacing Hydraulic Valves

Even though hydraulic valves are relatively simple devices, often with only one or two moving parts, close attention needs to be paid when replacing them. …

Test Your Skills: Considering Component Capability

Some fluids with very good lubricity and viscosity characteristics may prove caustic to the material in pumps, actuators, or valves, especially when hot. There …

Test Your Skills: Opening Up About Closed Loop Control

When accuracy and repeatability are important to a process, such as when an actuator is required to follow a predetermined position profile, a closed loop …

Test Your Skills: The Application of Fluids

Selection of viscosity must be made with the normal operating temperature of the machine in mind. The temperature is usually measured at the pump. The correct …

Test Your Skills: Application of Proportional Valves

There are many applications for proportional solenoids in the control of hydraulic pressure and flow in both mobile and industrial applications.  The terms …

Test Your Skills: Types and Applications of Compressors

The generic term “supply side” is often used to refer to the complete package that includes the compressor, drive motor, and associated hardware, as well …

Test Your Skills: Hydrostatic Transmissions

The transmission of force through a contained hydraulic fluid (hydrostatics) will fall into one of two categories: open circuit or closed circuit. An open …

Gas-Charged Hydraulic Accumulators

Accumulators are pressure vessels and are subject to the American Society of Testing Materials standards in addition to the International Standards …

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