Water Treatment

Below you will find white papers on topics involving process control and automation.

Rising Stem Valve vs. Rotary Valve

Submitted by Dr. Jon Monsen

This white paper discusses the rising stem valve and compares it to the rotary valve. The reader will learn what to consider to ensure the lowest overall life cycle cost and best possible degree of process control.

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Clean Drinking Water Using Walchem's W600 Controller

Submitted by Scott Severse || Valin

Clean drinking water is the most precious resource on the planet.  Access to sanitary water is an essential element to a healthy, productive population.  While many consumers take it for granted that they have access to clean water coming from the faucets in their home and in public places, the companies responsible for making sure this is a reality understand everything that is involved.

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Produce Disinfectant Management Using Walchem WIND Webmaster Control System

Submitted by Scott Severse || Valin

Grocery stores require produce to be disinfected before being shipped to their outlet on a regular basis in order to ensure cleanliness before it is sold to their customers.  If left untreated, fresh fruit can be subject to a number of different contaminates that can ultimately adversely affect the consumers health. As the public is more conscious than ever about the substances and chemicals that they ingest, ensuring that produce does not harbor microbes is critical.

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Choosing the Correct Chemical Metering Pump for your Application

Submitted by Mike Price || Walchem

Selecting the correct chemical metering pump can be a daunting task because of the variations and types of chemical pumps available. In order to pick the best metering pump for the application you will need to consider several factors. For the sake of simplicity, we will limit our discussion to pumps that deliver no more than 50 gph and pressures of less than 250 psi.

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Three Key Factors to Create Leak-Free Fitting Assemblies for Fluid Processing Applications

Submitted by Fit-LINE

Operational efficiency is a critical factor in the fluid processing industry. The synergy of fitting components and assembly technology to achieve this objective is the focus of Fit-LINE, Inc. Applying extensive polymer technology and injection molding expertise, the company has analyzed the design, tooling and manufacturing processes required to create high-performance solutions for demanding high-purity fluid processing applications. Through extensive R&D, testing and evaluation, Fit-LINE ...

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Filter Ratings

Submitted by Tim Tritch

The purpose of a filter is to remove contaminants from a fluid stream either completely, or at least down to a given rating or specification. Filters are used to help control contaminants and are rated according to their ability to remove these contaminants from a liquid, gas or air stream. There are different methods in which the performance of filters are specified.

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Choose the Correct Level Sensor

Submitted by Brian Sullivan

Answer a number of key questions to identify the most appropriate choice

At process plants, a significant percentage of measurement devices aren't correctly matched to their application, leading to decreased quality and consistency of the operation. Often, the source of this problem is the assumption that one type of level measurement sensor suits multiple applications.

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