100,000 Hours and Counting!

On February 4, 2005, KNF USA engineers entered the temperature-controlled space of the “Life Test Room” in Trenton, NJ to initiate prototype testing for a specially-modified version of the KNF N 838 series diaphragm pump. At the time, the custom-designed OEM vacuum pump was being developed for a Fortune 100 medical device manufacturer, as an integral component of their immunoassay and clinical chemistry analyzer. The KNF pump would need to perform its duty – vacuum aspiration of biological samples – quickly and quietly, while ensuring precision and durability over the life of the pump. Like all spec-driven KNF project pumps, the custom-engineered N 838 vacuum pump was to undergo substantial testing to ensure accuracy, reliability, and overall quality.

KNF Life Test Room

A peek inside the carefully controlled conditions of KNF’s Life Test Room

Among all tests performed by the KNF R&D team, the Life Test may be the most valuable as it simulates the rigorous operating conditions often found in real-world environments – providing valuable data which is used to further improve pump performance. KNF pumps that undergo this particular test are operated under a continuous duty cycle, at high load, in unfavorable temperatures. Collectively, these test settings amount to what KNF Engineers use to determine a “worst case scenario”. In short, the Life Test is employed as a means to identify specific opportunities for improvement, while simultaneously gauging the life span of the pump in its current configuration.

The specially-modified version of KNF’s N 838 diaphragm vacuum pump has been running in a controlled test environment since Feb. 4, 2005.

Remarkably, from the date this post is written, over 12 years (105,189 hours) have passed since Life Testing began for this special N 838 project pump. You read that correctly; the incredibly durable N 838 pump is still running strong after more than a decade! This impressive test run time represents the longest continuous duty timeframe ever recorded at KNF Neuberger. It should also be noted that this record-setting operating life was achieved with only a few minor updates including diaphragm replacements at 30K and 60K hours. Despite advancements in both pump technology and testing procedures, engineers at KNF will continue to operate this extraordinarily resilient pump, in the Life Test Room, until it has completed a full lifetime…whenever that may be.

To put this unbelievable achievement into perspective, we have compiled a list of historical events* that have occurred since the start of the N 838 project pump Life Test:

  • 2005 (Aug) – Hurricane Katrina makes landfall, devastating the US Gulf Coast
  • 2006 (Jul) – Twitter is launched
  • 2007 (Jun) – Apple releases the iPhone
  • 2008 (Nov) – The United States elects Barack Obama president
  • 2009 (Jul) – Roger Federer wins record 15th grand slam at Wimbledon
  • 2010 (Oct) – All 33 Chilean miners are rescued after being trapped for a record 69 days underground
  • 2011 (Apr) – Fidel Castro resigns from the Communist Party of Cuba’s central committee
  • 2012 (Nov) – Scientists detect evidence of light from the universe’s first stars
  • 2013 (Jul) – Detroit, Michigan becomes the largest U.S. municipality to file for bankruptcy
  • 2014 (Mar) – Malaysia Airlines flight 370 disappears kicking off the most expensive search effort ever
  • 2015 (Oct) – China announces the end to their one-child policy after 35 years
  • 2016 (Nov) – Donald Trump is elected President of the United States
  • 2017 (Jan) – World’s largest dinosaur footprint (1.7 meters) found in Western Australia

* events chosen, at random, from www.onthisday.com

New Flow-Tight, Diaphragm Liquid Transfer Pump Prevents Uncontrolled Flow

New, FL 10 Diaphragm Liquid Transfer Pump Prevents Uncontrolled Flow

KNF’s newest liquid transfer pump, the FL 10, is leak-tight in both directions, preventing uncontrolled flow and back-flow of liquid media when not in use. The latest addition to KNF’s extensive line of diaphragm liquid transfer pumps, the FL 10 offers many advanced features, and provides a considerable advantages over similar competitive products.

Leak-tight Diaphragm Liquid Transfer Pump

Featuring a solenoid-drive, and leak-tight valve technology, the compact FL 10 liquid transfer pump displaces fluid at a flow rate of 0 – 100 mL/min. Additionally, a signal frequency modulation feature enables quick and easy flow rate adjustments, saving time and money. Finally, like all KNF diaphragm liquid handling pumps, the FL 10 is self-priming, dry-run safe, and maintenance-free – offering outstanding performance longevity and an extraordinarily long service life (10,000 hours or 1.8 billion strokes).

To learn more about the leak-tight FL 10 liquid transfer pump visit knfusa.com/FL10

College Students Use KNF Pumps to Fuel Racing Success

Wisconsin undergraduates have a need for speed.

Students from the Milwaukee School of Engineering (MSOE) have been getting in the competitive spirit in an effort to create and race the most energy-efficient cars.

Consisting of undergraduates ranging from freshmen through juniors, these students are part of their university’s Society of Automotive Engineers (SAE) branch. As the organization operates solely on outside funding, KNF has sponsored these adventurous and ambitious students in their racing endeavors through the donation of needed liquid diaphragm pumps.

Joe Pechstein and team pose for a photo at the Shell Eco-marathon flanked by their vehicles.

Overseen by project manager Joe Pechstein, a junior, the group participates in two annual events: the Shell Eco-marathon, which took place in April 2017, and the SAE Supermileage competition, which took place in June 2017. Continuing an almost ten-year tradition of entering these selective competitions, Pechstein supervises the building of two vehicles for the former competition and one vehicle for the latter.

The mechanical engineering major recognizes the challenges involved, stating that the race is “a test of the driver’s skill, the design’s endurance, and the design itself.” With all design and testing done by students, the competitions represent the future of motor engineering.

To get the highest fuel economy possible while still meeting lap times, these twenty-five students use KNF’s NF 1.25 RPDC for their fuel system. These compact and powerful KNF pumps are used for engine dynamometer testing which typically determines the torque or power characteristics of a machine under test. Though dynamometers can also be used for standard emissions testing cycles such as those defined by the United States Environmental Protection Agency. The vehicle itself is a three-wheeled device with optimal aerodynamic features. Convenient in its small and lightweight design, the KNF pumps allow for an appropriate pressure range and high enough fuel output to guarantee full speed ahead.

A photo of the course which is usually a motor racing track or a closed off city street.

How did these students fare in the competitions? At the Shell Eco-marathon, the gasoline vehicle came in 14th place out of 30 at 588 mpg, while the electric vehicle came in 9th place out of 17 at 120 mi/kwh. Having made their mark in the gasoline vehicle category, Pechstein admits that “we have been steadily improving our fuel economy over the past three years.” In the SuperMileage competition, they came in 8th place out of 16 at 442 mpg, and an impressive 3rd place in their design report. Of KNF’s contribution, Pechstein adds that “the pumps were ideal” in helping to reach the finish line.

The team at KNF offers our congratulations to MSOE’s Society of Automotive Engineers! We know they have a bright future ahead.

Former MythBuster Delivers Keynote at Pacific Design & Manufacturing Event

Former MythBuster Jamie Hyneman at Pacific Design & Manufacturing

Jamie Hyneman, former MythBuster, speaking at Pacific Design & Manufacturing event (source: Pinterest)

This year, guests of the recently re-branded Pacific Design and Manufacturing event received a special treat as Jamie Hyneman – the famed, former co-host of The Discovery Channel’s popular television series, “MythBusters” – delivered the keynote speech. During his speech, Mr. Hyneman communicated the value of hard work, and also referenced the importance of constant improvement through his own love of tinkering. The honorary Doctor of Engineering stated, “Science isn’t done by people in lab coats. It is done by people that want to do a good job at figuring something out”. With talk of science and tinkering, it is no surprise that the 2017 keynote speaker was able to connect with his audience. After all, there were thousands of engineers in attendance of the annual conference, most of whom share a love of tinkering.

Though Jamie Hyneman has since moved on from Myth Busters, and The Discovery Channel has stopped production of new episodes, it has not stopped millions of fans from holding the show in high regard for its creative and courageous (often crazy) engineering. For example, many at KNF recall an episode that first aired on July 12, 2006 titled, “Crimes and Myth-Demeanors (part 1)“. During the episode, the crew attempt to debunk robbery and break-in scenarios so often depicted in Hollywood movies. Things get interesting when Jamie Hyneman and co-host Adam Savage begin development of their own gadgets: super-magnets, and suction cups, respectively. The peculiar devices were custom-engineered to assist the show hosts with an air duct climb).

KNF N 828 vacuum pump

KNF N 828 vacuum pump

What makes this episode particularly memorable to KNF USA associates is the vacuum source used for Adam’s suction cups – a KNF N 828 Diaphragm Vacuum Pump! The lightweight, oil-free KNF N 828 vacuum pump performed admirably to spec, pumping to 100 mbar of absolute vacuum via the suction cups on Adam’s hands and feet. However, in the end, both co-hosts were unable to climb the flimsy air duct without considerable noise, thus being anything but stealthy. Another Myth Busted. Later in the episode, Adam used his KNF N 828 vacuum pump powered suction cup rig to climb eight stories up the outside of a glass building before becoming too exhausted to continue. But not before further demonstrating the power of the KNF N 828 diaphragm vacuum pump!

Pumping Above Our Weight Class

NMP 03 Micro Gas Pump
The newly introduced ultra-small, portable device pump — weighing only 11g and measuring just 12.9 mm x 24.2 mm — delivers very consistent, linear transfer up to 500 mL/min.

In addition to ultra-small size and wide flow rate range, the NMP 03 offers a long service life, outstanding efficiency, leak tightness, and quiet, low-vibration operation. Typical portable device applications, for which the NMP 03 micro gas pump is very well suited, include: emissions measurement and gas analyzers; patient monitoring; capnography; negative pressure wound therapy; ion-mobility spectrometry (trace detection); drugs and explosives detection; handheld pipette/dosing; and print-head meniscus control.

The NMP 03 offers a wide operating temperature range of -20 °C – +60 °C (environment and gas) thereby making it well-suited for outdoor use and applications involving hot or cold gases. Plus, like other KNF micro gas pumps, the new NMP 03 features a modular system which can be configured to match your specific requirements.

Visit www.knfusa.com/NMP03 to learn more.

Liquid Waste Handling in Clinical Diagnostics and Lab Equipment

A new Application Note from KNF Neuberger, Inc. details effective methods for collecting, and evacuating liquid waste.

oem_application_noteWhen determining how to transfer liquid waste within an analyzer, design engineers must examine many factors. Though several methods will work, only one provides optimized system performance and lifetime.

Read more >>

 

KNF Exhibiting at the World’s Largest Printing Equipment Show

reprographic printingAs a trusted partner to many of the world’s leading industrial reprographic printer manufacturers, KNF is preparing to showcase its latest product developments at Drupa 2016. Considered the world’s largest printing equipment exhibition, Drupa is open every three years in Dusseldorf, Germany. This year, the show runs from May 31st through June 10th, and KNF is excited to be a part of it.

At the show, KNF will be exhibiting its latest product developments including liquid pumps with flow rates from microLiters/min to 12 L/min+ and gas pumps with flow rates from microLiters to 300 L/min. Additionally, KNF offers a wide selection of pumps that can be optimized for specific needs through engineer-to-engineer collaboration. Optional materials, motor types, fluid connections and other modifications are available to optimize performance, life, and cost at any quantity.

KNF liquid and gas pumps perform important ink handling tasks, including the ink transfer to print heads, ink degassing, print head cleaning, vacuum generation for print head meniscus control, and ink circulation. From continuous inkjet to drop-on-demand, from large format printing to product barcoding, KNF has the pumps needed for high-quality, consistent printing.

Please plan to stop by our booth in Hall 4, booth B01 if you will be attending Drupa 2016. To learn more about KNF pumps for reprographic printing visit www.knfusa.com/reprographics or read our related Application Notes: