ISA Interchange

Welcome to the official blog of the International Society of Automation (ISA).

All Posts

A Control Valve Primer by Hans D. Baumann

Do you know what to look for in a good Control Valve Design?  Do you know what you should NOT do with control valves?

Learn from Hans D. Baumann’s experience in his book:  Control Valve Primer: A User's Guide Fourth Edition which covers topics such as flow characteristics, control valve installation, environmental concerns, valve sizing, fail-safe and more.

Get 15% off until April 30th, use code #BCTVLVPR when checking out.


Besides the obvious, such as good quality workmanship, correct selection of materials, noise emission, etc., special attention should be paid to two areas:
• Low dead band of the actuator/valve combination (with tight packing).
• Tight shutoff, in cases of single-seated globe valves and some rotary valves (if required).

Download this chapter preview for more details


1) Install a steam valve at the bottom of a down-header.
2) Install a steam valve at the bottom of a down-header without providing a steam trap near the inlet side of a valve.
3) Locate a condensate return valve more than three feet away from a flash tank or condenser.
4) Buy a cage-trim valve for elevated temperature service without elastic support between cage and bonnet
5) Buy an I/P transducer with a 3-15 psi output signal when the actuator spring of the valve is also 3-15 psi and there is no positioner.

There are 10 more the book today to fully understand the inherent risks with improper use.

More about Hans Baumann and the Book
This book includes insights on valve sizing, smart (digital) valve positioners, field-based architecture, network system technology, and control loop performance evaluation. Baumann, a holder of more than 150 patents, and author of over a hundred publications in control valve technology, shares his expertise on designing control loops and selecting final control elements. The easy-to-read text provides shortcuts through complex sizing and noise calculation formulas including for liquids and cavitation, and gives practical advice on how to apply control valves for safety, reduced energy costs, loop stability, and more.

Control Valve Primer: A User's Guide, Fourth Edition is on sale until 30 April.

Be sure to use coupon code BCTVLVPR when you check out and save 15%.

Related Posts

What No One Tells You About Industrial Automation Marketing (Part 3): Email Marketing

Welcome to part three of this multipart series on marketing for the industrial automation industry. If yo...
Chris Sciulli Nov 27, 2020 5:30:00 AM

Spotlight on STEM Diversity and Inclusion Work: The National Girls Collaborative Project

Industries that don't prioritize diversity and inclusion are at a distinct disadvantage. Diversity in any...
Kara Phelps Nov 24, 2020 5:30:00 AM

What Is Industry 4.0?

By Jeff Winter --
Contributing Author Nov 20, 2020 5:00:00 AM