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Last updateTue, 25 Sep 2018 8pm

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A Primer On Worm Gear Operators

vmsum12_worm_gears_1Manual gear operators continue to provide a viable, age-old solution with a few 21st century twists. Understanding how these products work, as well as the tradeoffs and costs associated with manual operators, can help end users select the right technology for the application.


Reaching Around the World

PuzzleWorldMap

To coincide with the release of the latest edition of the North American Catalog of Valves—first published in 1984—we spoke with several U.S. and Canadian companies about how globalization has changed the way they do business.

Testing High-Nickel Alloy Castings in Refineries

vmspr12_nickel_1

Refiners today are increasingly dealing with more corrosive feedstocks that present new demands on valves in the process. However, maintenance personnel can detect problems before they become major issues by using different testing methods.

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