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Valve Basics

Like any other well-established technology, valves have a wide variety of designs and options. At times, this variety can make it difficult to compare valves. In the spirit of National Mentoring Month, we thought we’d introduce you to some valve basics, from terminology to use. While there are many types of valves, in this article we’ll focus on diaphragm valves…

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Diaphragm Material Survey Results

If there is any one secret of success, it lies in the ability to get the other person’s point of view and see things from that person’s angle as well as from your own. ~ Henry Ford Like Henry Ford, ASEPCO knows that the way to our customers’ hearts is to produce high-quality, long-lasting products at affordable prices. Our two…

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To Teflon or Not to Teflon?

That is the question. Over the last few years, we have received a lot of requests for Teflon (PTFE) diaphragms. Because of its chemical neutrality, Teflon is a well-known material that is used frequently in bioprocessing/pharma applications. Until relatively recently, ASEPCO did not have a Teflon diaphragm option, but now we provide PTFE diaphragms for our 1.0, 1.5, 2.0, and…

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What Is the Life Expectancy of a Diaphragm?

This question drives clients and critical valve makers crazy. There are loads of folks out there asking YOU to answer this question (it seems so logical, after all). Then, when we tell you we don’t know for sure, it kinda makes you the ham in the sandwich, caught between a demand for information and the lack of same. So, why…

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Killer Apps: The Secret of Having It When You Need It

Famous last words: “This shouldn’t take too long…” And the nightmare begins… When was the last time you had this experience? You have one of those simple, little, 30-minute weekend house repair projects. You get started and realize you’re missing a piece to complete the project.

Killer Apps: Diaphragm Abuse

“Never leave anything to chance; make sure all your crimes are premeditated.” In the first part of two, we are going to show you how to shorten the life of your diaphragm when you really want to do it right. It’s surprisingly simple, here are the most common ways we’ve seen diaphragm life shortened (in the next newsletter we’ll show…

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You mean, diaphragms don’t last forever?

Sadly, they don’t. In a diaphragm valve the diaphragm is doing all the work. As you open and close that valve you are stretching and compressing the diaphragm. This, along with the environmental conditions, which usually include temperature changes, cleaning solutions and steam will eventually cause the diaphragm to fail. This is just the nature of a diaphragm. While, most…

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Silicone Diaphragm vs. Sodium Hydroxide (NaOH)

Diaphragms are the high-wear component of most valves, so we thought it would be useful to show some of the common failures that occur with diaphragms. In this article, we’ll discuss the most common failures we have observed, and we’ll show an example of a specific case and how the problem was resolved. Over the years we have seen or…

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