Chemical Engineering July 2017 - 27

perature range for digiVIT devices is 32
to 122°F, with recommended storage
temperatures ranging from -4 to 158°F.
- Kaman Precision Products, Inc.,
Middletown, Conn.
www.kamansensors.com
Precise measurement
and control of gases
The new generation of high-precision
mass flowmeters (MFM) and controllers
(MFC) for gases (photo) feature an
integrated Industrial Ethernet switch
and support all standard Industrial
Ethernet protocols. This allows the devices
to be flexibly integrated in existing
systems. The two versions (Type
8741 and 8745) cover a broad measurement
and control range. They are
used at high and low pressures, as well
as for low and high flowrates. Typical
applications for mass flowmeters and
controllers are in the areas of metal,
glass or ceramic processing, coating
technology or in the production of
foams. MFCs/MFMs are also used in
fermenters and water treatment systems.
The Type 8741 handles nominal
flowrates of up to 150 L/min, while
the Type 8745 devices permit a maximum
of 2,500 L/min (both relative to
N2). - Bürkert Fluid Control Systems,
Ingelfingen, Germany
www.burkert.com
Detect the presence of steam
and water in boilers and drums
The Mobrey Hydratect 2462 detection
system (photo) is used in applications
where the detection of water or steam
is vital, such as boilers, steam drums
and steam-line drain pots. A functional
safety assessment carried out by Exida
determined that the Mobrey Hydratect
system meets the requirements
of safety integrity level (SIL) 3. With capabilities
to operate at up to 300 bars
and 560°C, Hydratect is intended as
a replacement for conventional float
switches, and consists of a compact
twin-channel electronic unit connected
to a pair of electrodes. Each channel
gives independent indications of the
presence of water or steam that are
said to be more reliable than those obtained
with electro-mechanical devices.
By installing the electrodes in vessels
or steam lines and measuring the resistance,
the presence of water can be
detected, allowing appropriate safety
measures to be taken. - Emerson,
St. Louis, Mo.
www.emerson.com
Bürkert Fluid Control Systems
A new probe for measuring
hydrogen peroxide vapor
The HPP272 probe for the measurement
of vaporized hydrogen peroxide
(photo) can measure not only the
hydrogen peroxide content (ppm)
of bio-decontamination processes,
but also temperature, relative humidity
(RH, only water vapor) and relative
saturation (RS, whole gas mixture). The
probe's sensor has a purge function
that helps maintain measurement accuracy
between calibrations and extends
the operating life of the probe.
This function heats the sensor rapidly
to remove possible impurities left in the
sensor's polymer films. According to
the manufacturer, the HPP272 probes
require calibration only once a year and
very little maintenance. The sensor's
intelligent measurement algorithm and
heating function ensure water cannot
condense on the sensor. This keeps
measurement data reliable, even in extremely
high humidities. - Vaisala Oyj,
Helsinki, Finland
www.vaisala.com/h2o2
A 'single-pot' system for
the food industry
Mixing, granulating, coating, drying
and heating and cooling can be performed
in this company's " single-pot "
process developed for the food industry.
The process performs chemical
reactions or mechanical product treatment
in one machine; several process
steps can take place without having
to isolate the intermediate products.
Depending on the application, all reactants
can be added into the machine
right at the beginning of the process or
sequentially, as required. The system
consists of a mixer composed of a horizontal,
cylindrical drum equipped with
a main mixing shaft fitted with a shovel
that generates a mechanical fluid bed
by rotating. Vacuum drying can then be
performed in the same machine, saving
time and treating the product with care.
- Gebr. Lödige Maschinenbau GmbH,
Paderborn, Germany
www.loedige.de
■
Mary Page Bailey and Gerald Ondrey
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
JULY 2017
Lödige Maschinenbau
27
Emerson
Vaisala
http://www.emerson.com http://www.kamansensors.com http://www.vaisala.com/h2o2 http://www.burkert.com http://www.loedige.de http://WWW.CHEMENGONLINE.COM
Chemical Engineering July 2017

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