July 2011 Tube ProducTs InTernaTIonal
11
news
business & market
Engineers and contractors involved in
the design and installation of PVC piping
systems are now able to benefit from a
new manual that has been launched by
DPI Plastics, a manufacturer of water
reticulation, drainage and pipe-fitting
systems.
The ‘Design Guidelines for PVC
Pressure Pipe Systems’ manual is an
updated version of the company’s
previous ‘Pressure Manual’, and
includes additional information on
new PVCO technology, guidelines on
solvent cement welding, modifications
to references of standards and an
introduction to the code of ethics and
conduct drawn up by the South African
Plastic Pipe Manufacturers Association
(SAPPMA), of which the company is a
founding member.
DPI Plastics technical and product
manager for pressure pipe systems,
Renier Snyman, pointed out that the
manual is provided free-of-charge to
all DPI Plastics clients: “The Design
Guidelines for PVC Pressure Pipe
Systems manual is ideally-suited to
design engineers, municipal engineers
and contractors installing piping
systems, and is available for free in CD
format, and online.”
Mr Snyman added that the manual
serves as a one-stop guide for all the
relevant and comprehensive information
relating to PVC pipes. “The guidelines
in the manual cover the physical
properties, design requirements,
chemical resistance, correct laying
methods and advice on installation, in
PVC pipeline installation
Pipe in service
PVC design and installation
user-manual
PVC pipes are being used more and more
often for underground purposes
1/4-Seite (60 x 180 mm) Satzspiegel
(Tube & Pipe Technology + TubeProducts Int.)
Pipes . Tubes . Services
one concise manuscript that will benefit
numerous industry players.”
The 48-page manual serves as a new-
and-improved version of DPI Plastics’
previous manual, which was launched
in 2000 when PVCM was the product-
of-choice in the plastic piping market.
Since then, however, PVCO has been
introduced to the Southern African
market and, as a result, the manual
includes detailed information on the
new technology.
Also added to the manual are sections
on ‘green’ issues, which are more
important to engineers and desi ners
today, compared to a decade ago. The
manual includes tables of comparison
showing power consumption, material
efficiency and pumping costs for various
piping systems so that informed, planet-
friendly choices can be made.
Mr Snyman commented that the new
manual is also more user-friendly: “The
previous manual contained up to 30 flow
and friction charts, catering to each pipe
size. This created a cluttered effect and,
as a result, we decided to replace these
charts with nomograms containing
typical pipe sizes for PVCU, PVCM and
PVCO products, making it more user-
friendly and easier to understand.”
dPI Plasti s
– South Africa
