Chemical Engineering January 2022 - 12

Focus
Focus on Valves
A check valve for
urea service
Conval
Circor International
A new in-line, axial check valve
(photo) for urea and ammonia service
was recently introduced. The
new axial check valve complements
this company's extensive urea service
product line, which includes
Clampseal Y-, T- and angle-pattern
globe valves, Swivldisc gate valves
and Camseal top-entry ball valves
in ASME Class 900 to 2500 ratings.
Standard sizes range from 0.5 to 6
in., with flanged, butt-weld, hub,
lens-ring or custom connections. All
of this company's urea-service valves
are available in many alloys, including
316L Urea Grade, Ferralium 255, 310
MoLN, Duplex F51, Super Duplex
F53, 25-22-2 SS, Zeron 100 and Titanium.
Features include B16.34 design;
integral gland wrench for concentric
360-deg packing load; in-line
renewability; exceptional life cycle
value; two-year warranty; standard
helium leak testing; optional steam
jacketing. - Conval, Enfield, Conn.
www.conval.com
This smart linear actuator has
Neles
a high range of force output
The RTK REact EQ-L electric intelligent
linear actuator (photo) is ideal
for processes that depend on 100%
running time, including industrial,
chemical and power applications.
Corrosion-resistant variants have
been specially designed for offshore
applications. The REact EQ-L electric
actuator offers an all-in-one package
for applications with opening/closing
forces from 15 to 30 kN (3,380 to
6,750 lbf). The REact EQ-L opens the
door for Industry 4.0 functionality and
flexibility for multiple signal-exchange
systems in open digital protocols for
process automation. Outfitted with
the optimized REpos digital
posiCoperion
K-Tron Salina
tioner, the actuator offers data logging
functions and remote control through
Profibus or CANopen. The RTK
REact EQ-L is also equipped with a
mechanical fail-safe and emergency
closing unit (ECU) function. The failsafe
can close the valve on loss of external
power. The ECU is a function of
12
the actuator that is designed to perform
a closing operation in an emergency,
such as when the temperature
or pressure limiter is triggered. The
actuator automatically returns to normal
operation after a fail-safe or ECU
function occurs. - Circor International,
Inc., Burlington, Mass.
www.circor.com
This new butterfly valve range
is versatile
A recently introduced butterfly valve
product range (photo) enables easy
valve configuration for a wide range
of applications, including high-cycling
valves to handle high-purity
gases, and valves for abrasive service
or corrosive media. The modular
valve range enables a large number
of configurations with the company's
Neldisc metal seat and Jamesbury
WaferSphere soft seat. The crosscompatible
components and standardized
parts make it easy to upgrade
valve performance without the
need to replace the entire valve. The
butterfly valve range offers longerlasting
tightness, lower torque need,
less wear and high flowrate, compared
to predecessors. - Neles
Corp., Helsinki, Finland
www.neles.com
This rotary valve is designed
for chemical applications
The ZXD Blow-Through Premium rotary
valve (photo) is designed to convey
powder and granular products
(smaller than 1 mm). The ZXD includes
patented blow-through channel
for optimal pocket sweeping, and
offers pressure differentials up to 1.5
bar(g). Standard operating temperatures
range up to 100°C - special
configurations can be supplied for
higher temperature (to 150-220°C).
Heavy-duty design includes an explosion-pressure
shock-proof rating
of 10 bar(g). The valve is available
with standard TEFC, EXP, Washdown,
and IEEE Severe Duty gear
motors. The ZXD comes standard
with air-purged seals completely
mounted with plastic or stainlesssteel
tubing, solenoid, filter regulator
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
JANUARY 2022
http://www.circor.com http://www.conval.com http://www.neles.com http://WWW.CHEMENGONLINE.COM
Chemical Engineering January 2022

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