Author: Professor, Dr. Dietrich Stein - TrenchlessOnline

WEFTEC PREVIEW
EXHIBITORS
BW Technologies
BW Technologies by Honeywell introduces
the GasAlertMicroClip, a revolutionary,
multi-sensor confined
space gas detector.
By simultaneously
displaying O2, H2S,
CO2 and %LEL, the
GasAlertMicroClip
offers a full-function,
multi-gas instrument
performance with the
compact size and
ease-of-use of a disposable
detector. The size, long life and
high specificity of the sensors are central to
the compact, yet functional design.
The GasAlertMicroClip features fieldselectable
user options allowing customization
to virtually any application. At just 5.6
oz., GasAlertMicroClip is the world’s best
value in confined space gas detectors. For
more information, visit www.gasmonitors.com.
RS# 100
Carlon
Carlon announces the re-introduction of
its CircuitSafe NEMA line of polycarbonate
electrical enclosures. Available in standard
sizes ranging from 6
in. x 4 in. x 4 in. to 16
in. x14 in.x 6 in., these
enclosures have set the
standard for enclosure
design, features, aesthetics
and value for
more than 15 years.
CircuitSafe NEMA is
available with clear or opaque covers, multiple
latching options and a panel management
system that supports the easy installation
of your components. With a UL-50 listing
of Type 4X, a UV rating of F-1, combined
with the strength, durability, and
weather ability of polycarbonate construction,
CircuitSafe NEMA is a great solution
for water and outdoor applications. For
more information, visit www.carlon.com or
booth # 6750. RS# 101
CertainTeed
CertainTeed engineered the first completely
non-metallic, corrosion resistant,
restrained-joint PVC piping system for
trenchless construction and offers a vari-
ety of contractor-proven Certa-Lok products
for water, sewer and conduit applications.
The latest member of this growing
family, CertaFlo GreenLine, is supplied in
standard green color and shorter lengths
for ease of use on Sewer pipe bursting
projects.
Certa-Lok products require no special
heat-fusion equipment, resulting in significant
labor and money savings. Joints are
assembled as the
directional drilling or
pipe bursting pullback
continues; long
strings of pre-fused
pipe are not necessary,
meaning streets
remain open and
clear. CertaFlo
GreenLine holds precise grade, a very
important factor in gravity sewer applications,
thanks to PVC’s superior stiffness. In
addition, higher-strength PVC requires a
much thinner wall in order to achieve the
same mechanical properties. Comparing
common sizes, PVC will have a larger
inside diameter, resulting in significantly
improved flow performance and efficiency
that can only be matched by upsizing
alternate thermoplastic materials (at significant
cost). RS# 102
40 TRENCHLESS TECHNOLOGY September 2007
Circle 35 on reader service card.
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