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products & developments<br />
Investment in corrosion protection<br />
Corrosion of the fins leading to blocking<br />
of the airside flow in air-cooled heat<br />
exchangers is one of the greatest<br />
problems in their operation and<br />
maintenance.<br />
As air passes over the lower rows of<br />
finned tubes it is heated, and corrosive<br />
deposits of the salts in solution form<br />
on the fins themselves. Along with the<br />
salts, the air also carries dirt and dust<br />
and possibly small concentrations of<br />
chemicals.<br />
Blocked and fouled fins reduce the<br />
heat exchanging efficiency of the tubes.<br />
<strong>Tube</strong> Supply International Ltd recently<br />
installed new plant in the UK capable<br />
of applying an electrophoretic coating<br />
to closely pitched fins (8, 9, 10 or 11<br />
fins/inch or even closer) on tubes up to<br />
12.2m long (40ft).<br />
The electrophoretic process ensures<br />
that an even coating of a chemically<br />
resistant paint completely covers the<br />
finned and bare tube outer surfaces,<br />
even down to the fin base.<br />
This chemically resistant paint (PPG<br />
paint) has a very smooth external<br />
surface to which neither the fouling layer<br />
nor the salts from evaporation adhere,<br />
resulting in the life of the external fins<br />
being extended by three to five times<br />
when compared with the life of a unit<br />
without coating.<br />
Although the plant is new, and particularly<br />
developed for finned tube applications<br />
within Europe, there are plants in the<br />
USA that have been running in reduced<br />
scale an almost identical process for<br />
several years.<br />
<strong>Tube</strong> Supply International Ltd – UK<br />
info@tubesupplyinternational.co.uk<br />
www.tubesupplyinternational.co.uk<br />
PREP tool for socket welding<br />
Asahi/America, Inc, an expert in<br />
thermoplastic fluid flow technologies,<br />
has introduced the socket welding<br />
PREP tool for removal of oxidation on<br />
thermoplastic pipe and fittings before<br />
welding.<br />
The new PREP (peel, remove, edge<br />
and plane) tool offers three-in-one<br />
convenience to quickly prepare a pipe<br />
before socket welding by removing<br />
the natural oxidation that occurs on<br />
polyolefin thermoplastics (PE and PP).<br />
Using the tool, the outside layer of the<br />
pipe is easily removed, the edge of the<br />
pipe is bevelled to ensure easy insertion<br />
into the socket fitting, and the face of<br />
the pipe is planed to straighten uneven<br />
cuts. An added benefit of this one-step<br />
process is the marking of the desired<br />
insertion depth.<br />
Asahi/America’s<br />
PREP tool<br />
The PREP tool features maintenancefree<br />
operation and can reduce overall<br />
piping system installation time. The tool<br />
is in accordance with DVS and ASTM<br />
Type B socket standards and is available<br />
in six sizes, from ½" to 2". PREP tools<br />
are available individually or in kit form,<br />
and manual handles and spare blades<br />
are also available.<br />
Asahi/America specialises in<br />
providing solutions for fluid handling<br />
systems, individualised to meet<br />
customer requirements. The company<br />
manufactures corrosion resistant<br />
thermoplastic fluid handling products,<br />
including valves, actuators, pipe and<br />
fittings, and maintains an extensive<br />
custom fabrication department, as<br />
well as providing on-site consultation,<br />
supervision and training where required.<br />
Asahi/America, Inc – USA<br />
asahi@asahi-america.com<br />
www.asahi-america.com<br />
Pipe fittings for process control<br />
Heubach International is an ISO<br />
9001:2008 certified company engaged<br />
in importing, supplying and exporting a<br />
wide array of pipe fittings and ferrous<br />
and non-ferrous material.<br />
The company’s products, in various<br />
shapes and sizes, are used for<br />
process control and instrumentation<br />
connections between pipe size and<br />
tube size.<br />
<strong>Products</strong> are sourced from trusted<br />
vendors, and the company employs<br />
auditors to check the quality of products<br />
at the time of procurement to ensure<br />
the flawlessness of the end product.<br />
<strong>Products</strong> are stored at the company’s<br />
spacious warehouse in order to meet<br />
the bulk requirements of clients.<br />
Backed by sound industry experience,<br />
the company is able to offer a range<br />
of stainless steel products in various<br />
sizes, thicknesses, lengths and grades<br />
as per clients’ requirements.<br />
Heubach’s carbon steel products<br />
include tubes, flanges, forged fittings<br />
and butt weld fittings.<br />
Heubach International – India<br />
mahendra@heubachint.com<br />
www.heubachint.com<br />
60 <strong>Tube</strong> <strong>Products</strong> International March 2014 www.read-tpi.com
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