TPi October 2009

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developmentsproducts &
30 Tube Products International October 2009
Almost 6km of Hobas WaterLine
DN 500, PN 16 were used for the
extension of the potable water
main along the river Bilina
Potable water project in Czech
Republic nears completion
Swagelok expands temperature
measurement devices range
THE Bilina potable water project in
the Czech Republic was partially
implemented in 1998, and included the
installation of around 1km of Hobas
CC-GRP WaterLine® DN 500, SN
10000, PN 16. One of the reasons
CC-GRP was chosen over steel and
cast iron was that it is non-conductive
and therefore corrosion resistant,
SWAGELOK has launched new
bimetal thermometers and thermowells
for general industry, to expand its
temperature measurement devices
line, which includes thermometers and
thermowells for sanitary applications.
The dampened-movement bimetal
thermometers operate in measurement
ranges from -70º to 540°C (-100° to
1,000°F) and are available in adjustable-
angle, centre-back, and lower-back
mount process connections. Each
Swagelok thermometer is factory
calibrated, and the products feature
external reset for field calibration.
“Our customers depend on Swagelok
products to provide high integrity
measurement and tighter process
control of their systems,” commented
Bill Menz, market manager for process
instrumentation. “The addition of
regarding the magnetic field created by
a nearby railway track. Satisfied with
the performance of the Hobas pipeline,
the client again opted for the company’s
CC-GRP pipe for the Zelenice-Bilina
extension project, launched in 2004.
The extension project was co-financed
by the EU programme ISPA, and
thermometers and thermowells for
general industry is a natural complement
to our existing product line.”
The dampened-movement bimetal
thermometers are accurate to ±1% of
involved the reconstruction of part of
the existing DN 600 potable water main
running along the same railway track
and from the highway to the river Bilina.
A total of 5.7km of Hobas CC-GRP
WaterLine systems DN 500, PN 16, SN
10000 were used for the project, which
was completed in 2006.
Between Libesice u Zelenic and the
Ledvice power plant, the line passes
beneath roads, along the river Bilina,
beneath a camping site, a public pool,
a sports ground, gardens and green
space, before finally reaching the wall
of the trained river. From there, the
original steel pipe on suspensions
was preserved and the protective
pipe around it was exchanged for
Hobas pipes.
The line continues through green
space, roads and the train station, and
ends in a shaft. The section between
the station and another shaft, which
also connects to the Chlum water
reservoir, was reconstructed in 1999,
and reconstruction works could be
taken up from that point, ending at
Ledvice power plant.
Hobas Engineering GmbH – Austria
full scale in accordance with ASME
B40.200, and are actuated by a sensitive
bimetal helix coil. Silicone-free gel in the
thermometer stem dampens vibration
effects.
Swagelok thermowells for general
industry are designed to protect the
thermometers from contact with
viscous, pressurised, corrosive, or
abrasive process fluids. They also
enable removal of thermometers for
replacement or service without affecting
the process or system. The thermowells
feature standard 304 stainless steel
constructions, and 316 stainless steel
upon request. The product is available
in straight, reduced, and tapered
shaft designs. Instrument connections
include ½" female NPSM straight and
female G1/2B connections. Process
connections include flange, sanitary
clamp, threaded, and weld socket in
½" to 2" sizes. Thermowells for sanitary
applications are 3-A compliant.
Swagelok Company – USA
Swagelok’s bimetal thermometers S S