As pressure rises on plants to improve productivity and equipment reliability levels, seals and gaskets are being called upon to provide even better performance. Their challenge no longer is simply to prevent leaks but also to play an important role in the life-cycle management of the plant.
In this installment of Ask The Experts, noted process control authority and CONTROL Columnist Béla Lipták and his cadre of automation experts answer a readers question regarding control valves for slurry services.
Recognized throughout the world for decades as an innovator in the field of mass transfer products, Sulzer Chemtech opened its first Houston facility in 1998. That was the first step in a series of moves designed to position the company in the U.S. market.
There are two main drivers for partial stroking of valves in safety systems: the desire to extend manual test intervals to as long as possible; and to reduce the amount of redundant hardware required for higher safety integrity levels. Like most things in life, it all boils down to one thing: trying to save money.
Understanding the fundamentals of fluid agitation can help meet the customers requirement and the processors need for efficiency. While portable mixers have been around for years, they often arent used to their full potential. Knowing the basics of mixing and flow patterns can help you get more out of your mixer.
Author: David Dickey, MixTech, Inc. and Lydia Booth Fenley, Illes Seasonings & Flavors
In spite of their large operating cost, most pump systems are inefficient by design. Among the common design problems are non-optimal pipe sizing, control valve utilization and, perhaps most common, incorrectly sized pumps. How a pump operates depends on the system, so improvements must focus on the system as a whole.
ControlGlobal.com contributor David W. Spitzer provides a look from a process automation perspective at how magmeters and Venturi meters are vying with ultrasonics for clean and dirty water applications.