Fluidics Design Expert Helps Leading Pump Manufacturer Improve Liquid Pump Connections
Apr 20 2017 Read 882 Times
Fluidics design expert Diba Industries, Inc has helped pump manufacturer KNF-Flodos improve fittings connection performance for its Simdos® 02 diaphragm liquid pump.
KNF manufactures a range of OEM liquid and gas pumps for medical devices and ink-jet printing as well as stand-alone laboratory pumps. The new Simdos® 02 dosing pump was designed to handle hazardous acids, bases and organic solvents in the laboratory environment. During prototype testing, KNF engineers discovered leaking caused by fittings not staying tight inside the smooth PTFE valve ports. Vibrations from the pump aggravated this problem, causing fittings to unscrew from (or back themselves out of) the ports under normal operation. With the Simdos 02 pump’s intended use to handle aggressive and caustic chemicals, fluid containment was critical.
Changing the pump material from PTFE was not an option, as PTFE was required for its inert qualities when exposed to solvents and acids. KNF also found that flares on the tubing assemblies were not fitting tightly into the ports, disrupting the fluid path and contributing to the leaking.
To find an alternative connection and address these problems, KNF turned to Diba Industries. After analysing the problem, Diba suggested glass-filled polypropylene fittings, which bite into the threads on smooth ports made of PTFE. Diba provided a complete tubing assembly with its flared tubing and glass-filled polypropylene fittings to ensure a leak-free connection.
Since adopting Diba’s tubing assemblies, KNF has been able to successfully launch the Simdos 02 with no reported leaks in the first two years.
“Simdos® 02 has been a very successful product,” said KNF Marketing Manager, Jean Delteil. “We spent a long time studying the market, so it has lots of good features, but if it didn’t have the right tubing and fittings it would not have been so successful.”
KNF-Flodos is a world-leading supplier of diaphragm liquid pumps, designing and manufacturing high-quality and innovative products. The company specialises in producing custom pumps for OEMs and also support a range of standard laboratory pumps. KNF has four production sites globally and a liquid pump product design centre in Sursee, Switzerland.
Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.
In this Issue Articles Mass Spectrometry & Spectroscopy 67th ASMS Conference on Mass Spectrometry and Allied Topics Chromatography Using Gas Chromatography for measuring atmo...
View all digital editions
Aug 25 2019 San Diego, CA, USA
Sep 01 2019 Berlin, Germany
Sep 03 2019 Manchester, UK
Sep 04 2019 Chiba City, Japan
Sep 08 2019 Krakow, Poland