Article | November 8, 2010

CSI Series: Flow Geeks Speak

Source: CSI
Guest Column: How To Choose The Right Pump

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Pharmaceutical Online is pleased to present this series that features a panel of experts from CSI. You can read the whole series below.

Elastomers: A Beginner's Guide
Whether for a gasket, valve seat, or O-ring, the choice of elastomer might seem like a minor decision, but it can have a major impact. If a seal material is a poor fit for the application, you could run into any number of problems, from swelling to peeling or cracking. Needless to say, these could be a big deal in a sanitary process. But how to you decide what elastomer to use?

Criteria For Selecting Equipment In A Hygienic Environment
Obviously, selecting equipment that is adequate for your specific application is important in every instance — hygienic or not. However, when selecting equipment for a hygienic application, there are some important criteria to consider. Let's examine some of those factors a little more closely.

Flow Meters Vs. Load Cells: How Do They Measure Up?
While flow meters and load cells are two very different technologies, their paths may sometimes overlap. In fact, it is not always easy to decide which technology would be best suited for a certain application. For instance, when outfitting a tank for batching, you must select a method for measuring the amounts of each ingredient added. A flow meter may be the first device that comes to mind. However, the load cell might actually be the better solution.

The Right Hands For The Job: Alloys
Many of our customers are now seeing the benefit of building equipment with specialty alloys designed for higher corrosion resistance than stainless steel. Typically these alloys are more expensive, both in material and production costs, than stainless. However, that increased cost can be offset by longer service life, reduced maintenance, and improved corrosion resistance.

Chloride Stress Corrosion Cracking Of 300 Series Stainless Steel
Stress corrosion cracking (SCC) is the unexpected, sudden failure of normally sound materials when subjected to tensile stress in a corrosive environment. The conditions necessary for stress corrosion cracking are: suitable environment, tensile stress, and sensitive material.

Acronym Awareness: Common Industry Terminology
The hygienic processing industries utilize an abundance of acronyms, but how many of them do you actually know? I've assembled a list of acronyms that are commonly used when engineering systems for hygienic processes. See if you recognize all of them, and perhaps you'll learn a few new ones.

Alloy Equipment: Realizing the Benefit of Proper Selection
While the cost of an alloy tank itself can be higher, remember to factor the additional costs incurred from downtime, maintenance, or replacement, including removal and installation. Over time, these costs can be significantly greater with carbon steel or even stainless steel applications.

A New Solution To An Old Problem
For decades, the method to make a tube or pipe penetration consisted of drilling a hole in the wall and running the pipe through. What we see in most plants is foam or caulk to plug the hole, in combination with a stainless steel escutcheon plate, sealed to the wall with silicone caulking.

How To Choose The Right Pump
Looking for a pump? The right pump for you is out there, but it's not always easy to know where to begin in the selection process. Here are some guidelines to help get your search moving in the right direction.

Benefits Of Skid Systems
Recently, a customer called CSI with a concern about their cleaning operations. Their existing CIP system was not adequate, and they had dire concerns they might be creating a dangerous environment for their workers. After reviewing the existing process, we confirmed most of their findings.

When Will I Benefit From Piping With AL-6XN Alloy Material?
Products containing chlorides and other salts can attack the tubing and fittings used to transport the products throughout a plant. Systems fabricated from 304 or 316 stainless steel can become leaky after prolonged contact with salty food and beverages, e.g. sports drinks and soy sauces.

Focus On Stress Corrosion Cracking
Stress Corrosion Cracking (SCC) has been defined as failure by cracking under the combined action of corrosion and stress. The stress and corrosion components interact synergistically to produce cracks, which initiate on the surface exposed to the corrodent and propagate in response to the stress state.