TPI November 2015

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26 Tube Products International November 2015
products & developments
Installing chilled water systems with
mineral fibre pipe insulation
The North American Insulation
Manufacturers Association (NAIMA)
has issued a new publication entitled
Guide to Insulating Chilled Water
Piping Systems With Mineral Fiber Pipe
Insulation. Developed for professional
insulation contractors, the 36-page
guide recommends methods for
insulating chilled water piping systems
using a vapour sealed mineral fibre pipe
insulation.
“Insulation systems are critical to limiting
heat losses and preventing condensation
on pipe surfaces operating from 0.5°C to
15.6°C (33°F to 60°F) within conditioned
spaces in commercial and institutional
buildings,” explained Charles Cottrell,
vice president technical services for
NAIMA.
“When poorly applied, however, an
insulation system can compromise
insulation effectiveness. NAIMA
developed this step-by-step guide
for applying vapour sealed mineral
fibre pipe insulation which, when
installed according to the guide’s
recommendations, can effectively
control condensation, help extend the
life of the insulation system, and save
energy.”
The guide addresses the installation of
standard ASJ jacketed pipe insulation
used in the field, and presents
recommendations based on reliable
engineering principles and research, as
well as consultation with manufacturers,
contractors and industry experts. It
details insulation application on straight
pipe; on pipe system fittings including
flanges, couplings, tees and valves; and
on 45° and 90° elbows.
Also included are details on vapour
dams, pipe supports and field-applied
jackets. Accompanying each application
description is a full-colour illustration
demonstrating the installation method
discussed. Other sections in the guide
include performance criteria, a guide
specification, installation checklist and
an extensive appendix outlining a wide
range of information resources and
references.
NAIMA’s role is to promote energy
efficiency and environmental
preservation through the use of fibre
glass, rock wool and slagwool insulation,
and to encourage the safe production
and use of these materials. A free copy
of the guide can be downloaded from
the NAIMA website.
NAIMA – USA
The guide includes illustrations and tips for
straight sections, valves and more
Dust- and water-tight RFID pressure
transmitters for fluid engineering
An independent testing and certification
body recently confirmed that the RFID
pressure transmitters of the PT-RF series
from Stauff comply with protection
rating IP69 in line with EN 60529 (VDE
0470). The classification confirms that
the pressure transmitters are dust-proof
(index number 6) and that no water can
enter into the housing (index number 9).
Testing equipment, particularly in mobile
hydraulics, is regularly subjected to high
pressure and steam jet cleaning. The
IP69 properties allow the transmitters to
resist these processes without negative
effects on the function or even damage.
Pressure transmitters from the PT-RF
series were developed to be integrated
into fluid technology plants and
systems permanently or temporarily
using the appropriate process
connection adapters. When a pressure
transmitter is activated by pressing a
button on the associated reading and
display device, the energy required
for the measurement is transferred
via contactless RFID technology. This
means the actual pressure transmitter
requires no internal or external power
supply or complicated wiring, and it is
completely maintenance-free.
A current measured value is determined
within only 0.5 seconds and immediately
transmitted back to the reading device
together with other relevant information,
and then output on the backlit display
and stored. This facilitates and speeds
up the process of determining pressure
values, without risk of introducing
contamination into the hydraulic system.
Walter Stauffenberg GmbH & Co KG
– Germany
Pressure transmitter
with protection
rating IP69
Photo credit:
Walter Stauffenberg GmbH & Co KG