Liquid level sensors are used to indicate liquid level by sensing the presence of a liquid using several different means. The “float” type sensor is the one that probably comes to mind first for most of us. The float valve in a toilet tank is a prime example. In the case of the toilet, a …
A few years ago I wrote a post about the possible perils of automated valves. The thrust of the post was that many automated valves rely on significant line pressure to hold the valve tightly closed. In applications where there is only gravity pressure, as in drain lines for example, valves that are perfectly effective under high …
Wherever there are liquids there are leaks – it’s inevitable. Leaks, of course cost money in downtime and repair of industrial cleaning systems. So, you ask, what is the best defense against leaks. Most leaks occur where one piece of plumbing connects with another. A pipe to a valve, unions, connections to pumps and filters and …
Most of us are aware that the power we get from the power line coming into our house or factory comes as alternating current. Basically, the voltage on the “hot” wire as referenced to ground varies, going negative then positive 60 times each second (60 Hz). The benefit and compelling argument for using alternating current …
I usually try to make sure I’ve done my research prior to posting a blog. As I was thinking about the post about the ceramic ring test, however, it occurred to me that there are a couple of variables that I had not previously considered – – the pencil and the means of applying the markings to the …
Other than to say that there is no perfect, infallible way, the blog has not addressed assessing ultrasonic performance. In an earlier blog, I did suggest that any of many methods are appropriate to compare ultrasonic performance of an ultrasonic system from day to day but that no further inference should be made. One test that’s …
Adding water to cleaning and rinsing tanks is inevitable in a cleaning process. Most modern machines include a means to sense liquid level and add more water or other appropriate liquid as necessary. It would seem simple enough, but there are a lot of factors to consider in managing liquid makeup. The first thing to determine is …
Overflow weirs are common features of industrial cleaning systems. Simply, a weir is much like a dam that holds back a river to form a lake. In the case of a cleaning system, the “lake” is usually a tank of liquid. The “dam” is formed as a portion of the lip of the tank is …
A few more things to monitor – Dirty rinse – An effective rinse is critical to most cleaning processes. Only in very limited cases can residues from the cleaning step be left on parts after they are cleaned. It does not, of course, do any good to clean the parts if they become re-contaminated by a …
Here are a few more variables that can be monitored in cleaning systems in pursuit of a Six Sigma process – Oil laden detergent – A good oil removal system is paramount in controlling the quality of the detergent in a cleaning system. An oily bath can quickly become ineffective in removing additional oil and even …
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