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Focus VSI CONTROLS

Customized control valves

for the most

demanding processes

The development of these solutions aims to best
serve the special and severe service control val-
ve market, in applications such as high differential
pressures, volatile, corrosive, dirty and erosive fl u-
ids, superheated steam as well as solutions to elimi-
nate cavitation and aerodynamic noise issues. The
fl uid dynamics and fl ow coeffi cients of the products
are fully calculated using CFD (Computational Fluid
Dynamics) approach, supported by fl ow test vali-
dation. In terms of fl ow, the tabulated characteristic
curves perfectly match the real characteristics, in
the various trim and fl ow confi gurations. Computa-
tional Fluid Dynamics analysis allows to accurately
calculate the cavitation and noise generation coeffi -
The control valve is the most important component cients, which aids in correctly sizing & selecting the
in modern process loops and control systems. valve even in the presence of high fl uid pressure
The operational conditions of fl uid pressure, tem- drops (liquids or gases). The use of this techno-
perature and process dynamics require rigor in logy to develop shape and design characteristics,
the analysis of intrinsic characteristics and in the
selection of a control valve to obtain effi cient per-
formances in a process control system. Modern
processes are increasing in both complexity and
variability to respond to a more and more spe-
cialized and diversifi ed products demand, it is
therefore essential the assistance of expert and
qualifi ed valve engineers, capable of analyzing
the process and offering the best solution for
the different process conditions of each speci-
fi c application.
VSI Controls™, a wholly-owned subsidiary of
PetrolValves™, is the ideal partner in the custo-
mization of control valves even for the most de- together with the use of noble materials, modern
manding processes, offering global Customers casting processes and advanced assembly and
an exciting alternative to procure general and test technology, allow to achieve an extraordinary
severe service rotary and reciprocating control level of capability and quality.
valve systems that provide customized best- VSI Controls™ solutions include: Reciprocating Glo-
fi t solution for their processes. Each day VSI be, Angle and 3-Way, Rotary Eccentric Plug, Dou-
Controls™ engineers encounter and sort out a ble and Triple Offset Butterfl y, Segmented V-Ball,
wide variety of process control issues in many Special Ball, Desuperheaters and Regulators. They
industries and applications. These experiences come equipped with double-acting spring return
generate valuable insights to share, communi- actuators and advanced digital positioners and pro-
cate and discuss with the Customers, with the vide the thrust, speed, accuracy and response to
intent of improving and creating innovative so- handle the most exacting applications.
lutions. www.vsicontrols.com

70 70 Impiantistica Italiana - Novembre-Dicembre 2018