1616 WHERE VALVES ARE USED: ON THE SEA AND UNDER THE GROUND Valve Magazine takes a look at the roles valves and actuators play in two unique industry segments—marine and mining. We outline what types of valves are used and what those
valves are tasked with, then address the special conditions
they must tackle.
BY GREG JOHNSON AND CRAIG BEKINS
SEVERE SERVICE VALVES RESPOND TO
Valves are called upon to respond to increasingly difficult
conditions as the systems they control and operate plunge
deeper into the ocean and further into the arctic, desert and
other remote areas with harsh environments.
BY PETER CLEAVELAND
VALVE ENGINEERING CHALLENGES FOR
FLOW CONTROL OF
The use of reclaimed water for irrigation and other purposes
is growing in the U.S. We take a look at how valves are used
in the process and where opportunities and challenges lie.
BY ROLF S TRUTZENBERG
THE TRUE MEANING OF
DOUBLE BLOCK AND BLEED
Rudy Garza of Exxon Mobil Upstream explains that while
many think their block and bleed valves provide double
isolation, they don’t—and that could be dangerous.
BY PETER CLEAVELAND
Suppliers to valve and actuator manufacturers play a critical
role in keeping our industry’s products operating efficiently
and effectively. Here’s a preview of products from some of
those suppliers as well as a list of VMA associate members
and a special focus on flowmeters.
ON VALVEMAGAZINE.COM: WEB-ONLY CONTENT ; Rationalizing Valve Specifying Through Metadata ; Dealing with the Threat of Chinese Counterfeiting ; Past the Obstacles to Lean Manufacturing New articles posted and news items updated regularly—visit ValveMagazine.com often!
VOLUME 22, NO. 3
The Voice of Flow Control
BY BILL SANDLER
Actuators & Control 48
Rotary Electric Actuators
BY PAUL SOUZA
Industry Insights 50
Innovation Reigns in Marshalltown
BY JUDY TIBBS
Materials Q&A 52
Industry Capsules 6
VMA Calendar 9
Index to Advertisers 57
VMA and VRC Member Roster 58
5555 PRODUCTS & PROJECTS
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