1414 2011 MARKET OUTLOOK WAIT ’TIL 2012 FOR SUNNY CONDITIONS peakers at this year’s workshop finally had some positive short-term news for attendees. However, they warned that while recovery has begun, 2011 will not be much rosier than
2010. For good news on growth rates, most segments of
industry will need to wait until 2012.
BY GENILEE PARENTE
FEATURES
30
CHALLENGES AND OPPORTUNITIES IN THE
INTERNATIONAL VALVE
MARKET
Companies that make or buy valves are increasingly doing
business in other countries. That means learning new ways of
operating and facing different regulatory issues and cultural
practices.
BY PETER CLEAVELAND
35 35
ANALYZING CAVITATION
IN REFINERY PROCESSING
Collapsing bubbles can cause havoc in the refinery business.
But there are ways to analyze and predict how probable
cavitation is for certain processes.
BY LUDWIG HABER, PHD AND MARTIN WOSNIK, PHD
38 38
CASE STUDIES:
CAVITATION IN
POWER PLANTS
One concern shared by all power plants is cavitation and the
damage it causes because of high pressure differentials across
the control valves. The author describes methods used to
combat cavitation in three facilities.
BY MARK NORD
Valve
MAGAZINE
Fall 2010
VOLUME 22, NO. 4
COLUMNS
Perspectives 4
A Cautious Outlook
BY BILL SANDLER
Actuators & Controls 42
Control Systems, Controllers
and Control Valves
BY MICHAEL PATTERSON
Maintenance & Repair 44
Valve Repair Companies
BY GENILEE PARENTE
Materials Q&A 47
DEPARTMENTS
Industry Capsules 6
VMA Calendar 9
Index to Advertisers 49
VMA and VRC Member Roster 50
40 40
APPLICATIONS FOR
ELECTRIC CONTROL VALVE
ACTUATORS
In applications where air as a power medium is a problem,
electric actuators may be the preferred choice.
BY CHRIS WARNET T
4848 PRODUCTS
Editor’s
Picks
PLUS, visit the
Featured
Suppliers
Section on
page 49
ON VALVEMAGAZINE.COM:
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