Learning Resources Archive

ARE YOUR PURCHASES REALLY EFFECTIVE

How does the purchasing process work in your business? In general, purchases occur very similarly in most small, medium or large businesses. This is because the procedure is quite similar, and what changes is mainly the size and volume of orders, depending on the performance of each...

HOW TO BETTER MANAGE YOUR SUPPLY CHAIN

Efficient management of the supply chain is necessary for all companies that deal with product movement, whether purchasing or selling. Any business that produces or sells goods must be very aware of the entire process, from purchase to delivery, especially because the internal organization can ensure higher...

Condition monitoring for compressed air piping

The Transair business unit of Parker Hannifin has announced the next evolution in compressed air piping with its new Condition Monitoring Technology, which lets end-users track the status of their compressed air piping systems. The setup uses sophisticated wireless sensors to monitor a compressed air piping network,...

Hydraulic symbology 204 – flow control valves

By Josh Cosford, Contributing Editor The words flow control valves broadly describe any hydraulic component capable of diminishing fluid volume downstream of itself relative to upstream. It goes without saying a flow control valve only reduces flow since the laws of nature remain unbroken. The method of...

What type of of air prep is required for plant compressed air?

Here are some best practices to supply safe, clean and dry air to a machine or piece of equipment. Plant-supplied compressed air often travels a long and varying path from the air compressor to where it is connected to a machine or piece of equipment. Along this...

What does pressure really mean?

Pressure is simply the force applied perpendicular to the surface of an object per unit area over which that force is distributed. However, there are many ways to reference and identify pressure, which is largely dependent upon the application. In many applications, there is a common misconception...

What is the “toast” test?

An important characteristic of many hydraulic fluids is the ability to maintain performance at high temperatures. Higher temperatures can cause oxidation—the reaction of the fluid and its constituents with oxygen. The rate of reaction accelerates as temperature increases, as does the presence of catalyst metals like copper...

Storage and cleaning of elastomer seals

Elastomer seals are built to handle a wide range of demanding hydraulic and pneumatic applications. A seal’s design and its material properties are two keys to lasting performance. The engineers at Parker Hannifin’s Engineered Materials Group in Germany also offer some important recommendations on how to store,...

WHAT IS INTEGRATED SYSTEMS ENGINEERING?

The application of Hydraulics and Pneumatics across every sector of industry worldwide, are now being interfaced at various levels with Electrical/Electronic Control Systems of some kind. From Apprentice level through to Qualified Engineers, the knowledge and skills levels must now take into consideration this additional technology and be...

What hydraulic pump type is best for my HPU design?

By Josh Cosford, Contributing Editor The type of pump you choose for your power unit affects the nature of the HPU builds. Pump choice boils down to cost, complexity and performance. There are three major types of pumps: the gear pump, the vane pump and the piston...
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