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ACCURATE ENGINEERING SPECIFICATION AND PROCUREMENT TIME
Sizing coefficients for Fisher control valves are based on
actual flow tests performed by Emerson engineers. It is not
necessary to apply conservative sizing practices; therefore,
project costs are reduced.
Every Fisher control valve design undergoes thorough
and extensive flow testing. Test engineers determine
sizing coefficients, stem force or hydrodynamic torque
requirements, and investigate actual performance.
Real processes often operate under conditions that are
beyond the scope of industry standards. Enhanced control
valve application technology has been developed that
helps ensure that correct valve sizes are specified for all
application conditions. Examples include non-ideal gases,
multi-phase flow, and out-gassing fluids. Correct valve
sizes help ensure safe and trouble-free operation, avoiding
adjustments during startup.
Test engineers operate three flow labs on three continents
giving Emerson engineers access to flow lines up to NPS 36
and 240 bar (3,500 psig).
An ISA data sheet has 120 fields that must be agreed upon
between the control valve specifier, supplier, and end user.
Control valves are designed for each unique installation and
require an intense exchange of information.
Fisher Specification Manager software helps you manage
your control valve specification data. It enables seamless
import/export data exchange with Intergraph’s SmartPlant
Instrumentation.
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Technology Development