Chemical Engineering November 2010 - 42

Concoa
New Products
aphragm metering pumps (photo)
is said to offer the best price-performance
ratio in its class (80 bar,
120°C, 300 L/min), and meters reproducibly
and precisely thanks to
the proven variable eccentric drive.
Different stroke frequencies of
the drives allow adaption to diverse
fluids and process requirements.
The design of the hermetically
tight diaphragm pump
is based on the manufacturer's
well-known technology using
the PTFE sandwich diaphragm
with diaphragm monitoring, the
patented diaphragm-protection
system and optimized check
valves. The pump also complies
with API 675 safety standards. -
LEWA GmbH, Leonberg, Germany
www.lewa.de
Close gas lines when
the temperature gets too high
FireBag thermo-activated shut-off
devices shut off gas supply when
ambient temperatures reach 212°F,
preventing the spread of fire that
can lead to gas explosions. The FireBag
will meet the temperature and
leakage requirements of ANSI/API
607 for natural gas, propane and butane.
When the outside temperature
reaches 203-212°F, metal alloy in the
FireBag that keeps plug and cartridge
together melts and the spring pressure
pushes against the gas opening
to close it completely. Once triggered,
the shutoff device works up to 1,697°F
for one hour. No fire or heat detectors
are required. - Assured Automation,
Clark, N.J.
www.assuredautomation.com
Prevent the passage of fluids
and debris during welding
Inflatable stopper bags are an easy
and cost-effective way to seal a pipe
and avoid penetration of liquids,
gases or any kind of debris or contamination.
They are available in sizes
from 2 to 80 in. (50-2,000 mm), but
other sizes can be made on request.
The inflatable bags can be produced
in different designs from a variety
of materials, including canvas and
polyurethane-coated nylon. Versions
with internal spines for better stability
of the air bag are also available.
LEWA
Georg Fischer Piping Systems
- Weldwide Solutions Ltd.,
Llanelli, U.K.
www.weldwidesolutions.com
Monitor and control gas flowrates
with these devices
This new series of Mass Flowmeters
and Controllers (photo) is designed
to accurately monitor and control the
flow of a wide range of gases. Series
MFM Thermal Mass Flowmeters and
MFC Thermal Mass Flow Controllers
have a maximum working pressure of
500 psig and are supplied with correction
factors for air, helium, hydrogen
and carbon dioxide. Made from 316L
stainless-steel bar stock, the units have
flow ranges from 0-10 mL/min to 0-20
L/min, and an accuracy of ±1% of full
scale. - Concoa, Virginia Beach, Va.
www.concoa.com
A new line of
butt-fusion machines
This firm's trench machines are used
for onsite fusion of plastic piping, and
are now available in three versions:
TM 160, 250 (photo) and 315. The key
components of the fusion machine are
the heating element, facer, clamping
brackets and unit, and rapid-action
couplings. The optimized cross-sectional
profile of the clamping points
makes for easy handling, while reducing
weight and increasing stability.
The design of the top clamp enables
fast and easy fixation, alignment and
removal of pipes. Rotating the machine
around the longitudinal axis creates
a second working position, without
28I-6 ChemiCal engineering www.Che.Com noVemBer 2010
changing the pull direction and the
hydraulic connection. For documented
quality control of the joints, the necessary
accessories are offered for fusion
data traceability. Weld-fusion execution
is compared with the selected standard
and then a printout of the parameters
can be started. - Georg Fischer Piping
Systems, Schaffhausen, Switzerland
www.piping.georgfischer.com
A smaller size of standardized
silica beads is now available
This firm has extended its range of
glass microspheres from 10 microns
down to 1.5 microns with the addition
of a new certified range of silica microspheres.
In addition to their use in particle
sizing, these silica microspheres
have applications in areas such as
drug delivery, respiratory studies and
filter testing. Supplied as dry powder
in sets of five with each vial containing
0.2 g, they can be used as either a wet
suspension or in dry form. - Whitehouse
Scientific Ltd., Waverton, U.K.
www.whitehousescientific.com
Corrosives are not a problem for
this concentration sensor
Thanks to an innovative tantalum
coating, the sensors of the LiquiSonic
range of ultrasonic concentration and
density instruments withstand aggressive
process fluids, such as sulfuric,
hydrochloric and hydrofluoric
acids at temperatures over 130°C. As
a cost-effective alternative to sensors
completely made of tantalum, users
can rely on the stability of the coat
http://www.lewa.de http://www.weldwidesolutions.com http://www.piping.georgfischer.com http://www.concoa.com http://www.assuredautomation.com http://www.whitehousescientific.com http://www.Che.Com
Chemical Engineering November 2010

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