Chemical Processing LogoDecember 2015 Issue Preview

Ad Closing: November 12, 2015 | Material Closing: November 19, 2015

Cover Story
Two Products Earn Honors
By Mark Rosenzweig, Editor in Chief
For more than 50 years, the biennial Vaaler Awards have recognized products whose significance, novelty and breadth of applicability promise to improve the operation and economics of plants. Here are the 2015 winners.

Maintenance and Operations
Succeed at pH Troubleshooing
By Cherlyn Marlow, Yokogawa Corp. of America
A variety of issues can undermine the accuracy, reliability and service life of pH sensors. Calibration is essential and can provide important insights. Here're guidelines on how to identify and address common problems.

Solids and Fluids Handling
Get Your Teeth into Gear Pumps
By Amin Almasi, Rotating Equipment Consultant
Gears pumps offer a number of advantages, such as compactness, bidirectional flow, high-pressure and high-temperature capabilities, and accurate metering. Here are factors to consider in selecting and applying these pumps.

Instrumentation and Control
Flow Measurement Makes Solid Strides
By Seán Ottewell, Editor at Larges
Monitoring the flow of powders and other solids often is crucial for operations but can be trickier than monitoring fluids. Here's a rundown of some significant developments in technology to measure such materials.

Energy Saver
Make Your Processes Smarter
By Riyaz Papar, Energy Columnist
Some data that can help improve energy efficiency often are not collected. Monitoring compressor and steam-turbine suction and discharge temperatures, and heat exchanger effectiveness can improve fault detection and diagnosis.

Plant InSites
Don't Worry About Pump Inlet Velocity
By Andrew Sloley, Troubleshooting Columnist
The concept of a velocity limit on centrifugal pump suctions has some merits. However, review of company standards and published literature indicates that the velocity, unless it's extremely high, is not very important.

Advertising Information

For advertising information contact your district manager or Rita Fitzgerald, Production Manager, at 630/467-1300 ext. 468. Send insertion orders to her at Chemical Processing, 1501 E. Woodfield Rd., Suite 400N, Schaumburg, IL 60173; fax 630/467-0197; e-mail

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