Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Universal hose with corrugated tube liner made from DuPont™ Teflon® PTFE permits small bending radii

14.02.2008
‘Fluorflex’ universal hoses, developed by HSI Schlauch- und Armaturentechnik, Mühlheim/Ruhr, Germany in partnership with Fluortubing, Kerkrade/Netherlands and ContiTech Fluid, Korbach, Germany, are constructed with an inner liner made from DuPont™ Teflon® PTFE 62-N.

This liner is designed in the form of a helically corrugated tube and therefore permits very small bending radii. As Tobias Sautmann, CEO of HSI, explains: “This enables installation space to be significantly reduced, particularly with large hose diameters (minimum bending radius for DN 75 is 200 mm). At the same time, this flexibility allows hoses to be fitted in extremely confined spaces, where installation would previously have been impossible.”


Photo (a): DuPont
‘Fluorflex’ universal hoses with their helically corrugated inner liners made from DuPont™ Teflon® PTFE can be installed with very small bending radii.


Photo (b): DuPont
‘Fluorflex’ universal hoses with their helically corrugated inner liners made from DuPont™ Teflon® PTFE are suitable for applications such as transporting inorganic acid and alkali mixtures of any type and concentration as well as mineral oils and mineral oil derivatives. They can replace many conventional hose variants, which might be considered as not sufficiently flexible or resistant.

Teflon® PTFE 62-N combines very good flexural fatigue strength and stress crack resistance with high thermal stability and excellent resistance to nearly all media used in food and pharmaceutical production. This often makes it possible to reduce stock to just one type of hose. A black conductive strip integrated into the corrugated tube dissipates static electricity. The tube can also be supplied in an all-white design, e.g. for the pharmaceutical industry, and with an all-black (i.e. fully conductive) inner liner.

The helical geometry not only ensures high flexibility but also gives the transported medium angular momentum that permits higher conveying speeds and up to shorter emptying times. Thanks to the inherent non-stick properties of Teflon®, the hoses are very easy to clean, even when carrying very high-viscosity media. This – together with the possibility of faster emptying for cleaning or material changes – can achieve significant cost savings in production. Another advantage for users is the ease with which the ‘Fluorflex’ hose system can be fabricated on site using safety clamps without the need for laborious de-corrugation in a salt bath, compressing sleeves or purchasing the costly machinery required for this. Since hose systems can be custom-fabricated quickly in this way, it is usually unnecessary to stock replacement hose lines.

A multi-ply outer jacket comprising an EPDM intermediate layer, a reinforcing braid made from DuPont™ Kevlar® brand fibres and a covering layer specially tailored for the application protects the Teflon® inner liner from damage. Besides EPDM black, the covering layer can also be supplied in NBR black for contact with oil and gasoline, NBR black high-temperature blend for temperatures above 150°C, NBR blue for food applications and EPDM grey for pharmaceutical production. New products are being developed for transport, chemical engineering and the construction industry. The whole system is designed for working pressures of 16 bar and continuous service temperatures of 150°C. Designs for even higher temperatures are possible. Fittings can be supplied in many different materials (VA, PP, PVDF, different coatings such as PFA und ECTFE) and with all currently used connections.

DuPont Fluoropolymer Solutions is a leading producer of fluoropolymer resins, additives, films, finishes and dispersions, PTFE (polytetrafluoroethylene), PFA (perfluoroalkoxy), FEP (fluorinated ethylene propylene), ETFE (ethylene-tetrafluoroethylene) and PVF (polyvinylfluoride), marketed under the registered trademarks DuPont™ Teflon®, DuPont™ Tefzel®, DuPont™ Tedlar® and DuPont™ Zonyl®. Major markets for these fluoropolymer products include the automotive, chemical processing, semiconductor, oil exploration, chemical handling, data communication, aerospace, electronics, houseware and building industries.

DuPont is a science company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture, nutrition, electronics, communications, safety and protection, home and construction, transportation and apparel.

The DuPont Oval Logo, DuPont™, The miracles of science™ and all product names denoted with ® are registered trademarks or trademarks of DuPont or its affiliates.

Note to the editor:
This press release is based on information provided by:
HSI Schlauch- und Armaturentechnik GmbH
Lahnstrasse 47, D-45478 Mülheim an der Ruhr
Contact: Tobias Sautmann,
Tel.: +49 208 99389–22, Fax: –11
t-sautmann@hsi-schlauchtechnik.de

Horst Ulrich Reimer | Du Pont
Further information:
http://www.hsi-schlauchtechnik.de
http://www.dupont.com

More articles from Materials Sciences:

nachricht Carnegie Mellon researchers create soft, flexible materials with enhanced properties
24.05.2019 | Carnegie Mellon University

nachricht Plumbene, graphene's latest cousin, realized on the 'nano water cube'
23.05.2019 | Nagoya University

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New studies increase confidence in NASA's measure of Earth's temperature

A new assessment of NASA's record of global temperatures revealed that the agency's estimate of Earth's long-term temperature rise in recent decades is accurate to within less than a tenth of a degree Fahrenheit, providing confidence that past and future research is correctly capturing rising surface temperatures.

The most complete assessment ever of statistical uncertainty within the GISS Surface Temperature Analysis (GISTEMP) data product shows that the annual values...

Im Focus: The geometry of an electron determined for the first time

Physicists at the University of Basel are able to show for the first time how a single electron looks in an artificial atom. A newly developed method enables them to show the probability of an electron being present in a space. This allows improved control of electron spins, which could serve as the smallest information unit in a future quantum computer. The experiments were published in Physical Review Letters and the related theory in Physical Review B.

The spin of an electron is a promising candidate for use as the smallest information unit (qubit) of a quantum computer. Controlling and switching this spin or...

Im Focus: Self-repairing batteries

UTokyo engineers develop a way to create high-capacity long-life batteries

Engineers at the University of Tokyo continually pioneer new ways to improve battery technology. Professor Atsuo Yamada and his team recently developed a...

Im Focus: Quantum Cloud Computing with Self-Check

With a quantum coprocessor in the cloud, physicists from Innsbruck, Austria, open the door to the simulation of previously unsolvable problems in chemistry, materials research or high-energy physics. The research groups led by Rainer Blatt and Peter Zoller report in the journal Nature how they simulated particle physics phenomena on 20 quantum bits and how the quantum simulator self-verified the result for the first time.

Many scientists are currently working on investigating how quantum advantage can be exploited on hardware already available today. Three years ago, physicists...

Im Focus: Accelerating quantum technologies with materials processing at the atomic scale

'Quantum technologies' utilise the unique phenomena of quantum superposition and entanglement to encode and process information, with potentially profound benefits to a wide range of information technologies from communications to sensing and computing.

However a major challenge in developing these technologies is that the quantum phenomena are very fragile, and only a handful of physical systems have been...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

SEMANTiCS 2019 brings together industry leaders and data scientists in Karlsruhe

29.04.2019 | Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

First dust conference in the Central Asian part of the earth’s dust belt

15.04.2019 | Event News

 
Latest News

New system by TU Graz automatically recognises pedestrians’ intent to cross the road

27.05.2019 | Information Technology

On Mars, sands shift to a different drum

24.05.2019 | Physics and Astronomy

Piedmont Atlanta first in Georgia to offer new minimally invasive treatment for emphysema

24.05.2019 | Medical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>