Useful Tools
Useful Tools
The following set of formulas and charts have been formulated to be useful to the fluid power professional. The units provided are those commonly used in our industry and not necessarily the units used in […]
Articles by Dan Helgerson
Fluid Power
Pressure Drop and Air Flow Through an Orifice
The following active chart will show either the flow rate, the pressure drop, or the orifice diameter when a gas is forced through an orifice. Pictured below are the four orifice configurations having different impacts […]
Energy
Pressure Drop Through a Sharp Edge Orifice
The following chart is a working spreadsheet that will allow you to determine the pressure drop through an orifice, both in metric and in US Customary units. Simply select the Metric or US Customary chart. […]
Articles
Transforming our Thinking
About: Energy Units We are taught to think of fluid power in terms of flow and pressure; flow is for velocity and pressure is for force. While this is true at the actuator (the motor […]
Articles
So, You Say You Want to Make a Difference
One of the most rewarding things that ever happened to me in the field of fluid power was when a high school student spoke to me after a two-hour pneumatic training session for FIRST robotics mentors. She told […]
Energy
Digital Displacement Pumps
There seems to be a lot of excitement about the emerging technology surrounding the Digital Displacement® pumps (DDP) and motors (DDPM) developed and patented in 1994 by Stephen Salter, co-founder of Artemis Intelligent Power. It […]
Design Tips
Welcome to the Future of Fluid Power
We are Fluid Power Professionals. That means we are professionals at transferring energy. We need to think of ourselves as Energy Professionals specializing in Fluid Power… We need to begin thinking about the entire energy […]
Articles
The Paperweight
Miss Application had a desk near an open window. When the breeze would blow in from the window, the papers would be blown off her desk and it was very annoying. She decided to have […]
Safety
In the Line of Fire: Cause and Dangers of Fluid Injection Injuries
This video will explore the cause sand dangers of fluid injection injuries, the horrible results of those injuries, and the timely and necessary protocol for the injured person, their managers, EMT personnel, the emergency […]
Energy
Flow Means “Go”…well not exactly
A recent study has shown an average efficiency in fluid power systems to be less than 30% with a cost of billions of dollars in wasted energy. A great deal of work has been done […]