The Light Green Machine Institute

20 Jan 16: Let's talk about maintenance

For years, we have been saying that one of the benefits of the Light Green Machine concepts will be ease of maintenance, for maintenance workers will be able to easily pick up items that now need a crane or two or three people to lift.

Your humble ANSI pump is a good place to start looking at this.  For instance? Why is the casing still cast iron? This makes as much sense here as do cast iron dryers (meaning--no sense at all). There are plenty of plastics that could serve well in most applications, in fact, often they may be superior, not just equal, to cast iron.

The pump shaft should be a hollow "torque tube" not a solid steel shaft.

This leaves the rotor, which likely will still need to be steel or stainless steel.

In the end, we have a pump, at least in its disassembled form, that can be easily picked up by one person.  

I really suspect the cast casing is about as justifiable as the cast iron dryer--it exists because we have always done it that way and pump manufacturers have a significant investment in casting facilities.

We would like to hear from you. Please send an email to [email protected] 
with "LGMI Frontiers" in the subject line. 

As always, your comments will be appreciated.
Think light!


Brian Brogdon, Ph.D.
Executive Director




Jim Thompson

Send us your comments by emailing Brian Brogdon
or Jim Thompson!

The Light Green Machine Institute is a 501C3 Delaware Registered Corporation. If you are interested in making tax deductible donations to our initiatives, please email [email protected] for information.