Brochure

Proven Performance
10 | Fisher
®
easy-e
™
Sliding-Stem Control Valves
Design Verification Through Lab Testing
Emerson engineers conduct tests that analyze cavitation,
materials, fatigue, wear, high and low temperatures, valve
actuators, loop variability, leakage, hydrostatic forces, gaskets,
seals, and control system compatibility. In the controlled lab
environment, special tests are also commonly performed to
solve customers’ toughest challenges.
Results from flow variability testing, hydrostatic pressure
testing, capacity verification, metallurgical development,
and cycle life testing all lead to one conclusion—the easy-e
control valve meets or exceeds the demanding requirements
established by the process control industry.
Emerson Innovation Center
The Emerson Innovation Center for Fisher Technology in
Marshalltown, Iowa, USA, is home to the world’s largest flow
lab used to evaluate control valves. It incorporates flow testing
capabilities up to NPS 36 and 240 bar (3,500 psig). Final
control elements are tested in conformance to IEC and ISA
standards in real-world plant conditions to ensure production
reliability, efficiency, environmental compliance, and safety.
Lab Tested
The easy-e control valve has undergone thorough
and extensive testing. Test engineers determine
sizing coefficients, stem force requirements, and
investigate actual performance.