Ultrasonics – Surface Cavitation Erosion

Surface cavitation erosion of ultrasonic transducers is a topic that users and manufacturers of ultrasonic equipment would often rather not talk about – – but we must.  The erosion of a transducer surface due to surface cavitation is inevitable over time.  Its severity depends on several factors, some of which can be controlled and some …

Plumbing – “Air Locks”

The blog Pumps – Centrifugal Pumps provided some basic information about the type of pump most commonly used in industrial cleaning equipment.  Centrifugal pumps are simple, relatively inexpensive, versatile and reliable.  However, as I mentioned in that blog, they do have some limitations.  In order for a centrifugal pump to function, liquid to be pumped …

Applications Notes – Ultrasonic Filter Cleaning

Filters used to filter air, water and chemicals in industrial processes can cost thousands of dollars and more.  Some filters are intended to be renewable by cleaning.  Other filters, even some considered “disposable,” can be recovered for re-use using ultrasonic cleaning techniques. A filter, as we discussed in earlier blogs (search “filter”) is a device …

Water – De-Ionoized – Right and Wrong

This blog explores some common mistakes made in the application of de-ionization hardware.  Although a properly engineered and installed de-ionization system will prevent these potential mistakes at the start, post-installation modifications by those less knowledgeable about de-ionizing technology don’t always respect good design practices. Temperature Limits – In general, de-ionization systems are not intended to …

Valves – Considerations for Specifying Automated Valves

The specification of automated valves requires certain considerations that are not of concern with typical manually operated valves.  The blog Valves – Automated Valves – What’s Different? provided a glimpse of automated valves with a very simple (but typical) example.  There are, of course, innumerable variations used in the design of automated valves so the …

Valves – Automated Valves – What’s Different?

Today’s highly automated industrial cleaning equipment relies heavily on valves remotely actuated either by an operator or by an automated control system.  Although performing basically the same function as manually operated valves, automated valves operated by electricity, air, hydraulics or other means are considerably different than manual valves not only in their construction but their mode …

Valves – Pressure Reducing Valves

It is not an uncommon practice to use flow restricting valves in an effort to reduce and/or control pressure in even the most sophisticated industrial cleaning machines.  In the blog “Reducing Flow vs. Reducing Pressure – Which is it?” the risks of using flow restricting valves to control pressure were discussed in some detail.  Reliable pressure control …