Welcome!

News Feed Item

Polyurethane seal from Freudenberg-NOK Sealing Technologies replaces PTFE seals in hydraulic piston accumulators

SIMKO 300 seal ring proves impressive in wind power facilities

PLYMOUTH, Mich., Feb. 7, 2014 /PRNewswire/ -- Hydratech Industries, a leading provider of solutions for wind power facilities and hydraulic systems, is relying on a polyurethane sealing solution from Freudenberg-NOK Sealing Technologies for its new hydraulic accumulator. Test comparisons with other products have shown that Freudenberg-NOK's SIMKO 300 seal ring offers distinct advantages over frequently used polytetrafluorethylene (PTFE) seals with regard to operating life, form stability and sealing characteristics.

The durability of sealing rings in piston accumulators is a crucial parameter for operating life. For this reason, piston accumulators undergo accelerated load tests at the Hydratech test center in Sikeborg, Denmark that simulate 20 years of service life. During the testing process, the behavior of the seals under pressures greater than 200 bar and temperatures ranging between -104 degrees to +140 degrees F is measured – conditions that exceed actual stresses. 

Based on its form stability, extreme hardness and low abrasion, Hydratech now uses the SIMKO 300 from Freudenberg-NOK. The sealing solution "fully meets our expectations and is impressive due to its long service life," said Jimmi Wenderby, Hydratech research and development manager.

Most sealing systems in piston accumulators work with two seals, one for oil and another for gas. This leads to increased wear due to the extreme load, especially in PTFE seals. By contrast, the SIMKO 300 is a single seal (consisting of a seal ring and a pressure ring) and is made of polyurethane. Polyurethane's hardness grade of 98 Shore A corresponds to that of PTFE but is much more robust. Its susceptibility to potential surface damage during installation is also lower. The pressure ring creating the necessary pre-tension is made of an elastomer.  

The SIMKO 300 seal's high form stability, its surface firmness and its long operating life make it especially appealing for use in hydraulic pitch controllers in wind power facilities. They are an important component of the security technology in wind power facilities, as the piston accumulator must not merely function reliably under extreme weather conditions but also withstand the high differential pressures that are also produced. The accumulator must be able to operate leak-free over very long periods of time.

The SIMKO 300 is a cost-effective and extremely reliable solution for use in piston accumulators, and it provides a long service life for the wind power station due to its outstanding sealing qualities.

About Freudenberg-NOK Sealing Technologies

Freudenberg-NOK Sealing Technologies is the Americas joint venture between Freudenberg and Co. in Germany and NOK Corp. in Japan. Freudenberg-NOK is a leading producer – through its Automotive, Merkel, Process Seals and Simrit sales channels – of advanced sealing technologies for a variety of markets including: aerospace; agriculture; appliance; automotive; construction; diesel engine; energy; food and beverage; heavy industry; and pharmaceutical.

Founded in 1989 under the legal name Freudenberg-NOK General Partnership, Freudenberg-NOK is headquartered in Plymouth, Mich. and operates more than 20 facilities across the Americas. For additional information, please visit www.fnst.com.

SOURCE Freudenberg-NOK Sealing Technologies

More Stories By PR Newswire

Copyright © 2007 PR Newswire. All rights reserved. Republication or redistribution of PRNewswire content is expressly prohibited without the prior written consent of PRNewswire. PRNewswire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

Latest Stories
Things are changing so quickly in IoT that it would take a wizard to predict which ecosystem will gain the most traction. In order for IoT to reach its potential, smart devices must be able to work together. Today, there are a slew of interoperability standards being promoted by big names to make this happen: HomeKit, Brillo and Alljoyn. In his session at @ThingsExpo, Adam Justice, vice president and general manager of Grid Connect, will review what happens when smart devices don’t work togeth...
"Avere Systems is a hybrid cloud solution provider. We have customers that want to use cloud storage and we have customers that want to take advantage of cloud compute," explained Rebecca Thompson, VP of Marketing at Avere Systems, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
SYS-CON Events announced today that Dataloop.IO, an innovator in cloud IT-monitoring whose products help organizations save time and money, has been named “Bronze Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Dataloop.IO is an emerging software company on the cutting edge of major IT-infrastructure trends including cloud computing and microservices. The company, founded in the UK but now based in San Fran...
20th Cloud Expo, taking place June 6-8, 2017, at the Javits Center in New York City, NY, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy.
SYS-CON Events announced today that Super Micro Computer, Inc., a global leader in Embedded and IoT solutions, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 7-9, 2017, at the Javits Center in New York City, NY. Supermicro (NASDAQ: SMCI), the leading innovator in high-performance, high-efficiency server technology, is a premier provider of advanced server Building Block Solutions® for Data Center, Cloud Computing, Enterprise IT, Hadoop/Big Data, HPC and E...
SYS-CON Events announced today that Linux Academy, the foremost online Linux and cloud training platform and community, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Linux Academy was founded on the belief that providing high-quality, in-depth training should be available at an affordable price. Industry leaders in quality training, provided services, and student certification passes, its goal is to c...
The unique combination of Amazon Web Services and Cloud Raxak, a Gartner Cool Vendor in IT Automation, provides a seamless and cost-effective way of securely moving on-premise IT workloads to Amazon Web Services. Any enterprise can now leverage the cloud, manage risk, and maintain continuous security compliance. Forrester's analysis shows that enterprises need automated security to lower security risk and decrease IT operational costs. Through the seamless integration into Amazon Web Services, ...
IoT is at the core or many Digital Transformation initiatives with the goal of re-inventing a company's business model. We all agree that collecting relevant IoT data will result in massive amounts of data needing to be stored. However, with the rapid development of IoT devices and ongoing business model transformation, we are not able to predict the volume and growth of IoT data. And with the lack of IoT history, traditional methods of IT and infrastructure planning based on the past do not app...
All organizations that did not originate this moment have a pre-existing culture as well as legacy technology and processes that can be more or less amenable to DevOps implementation. That organizational culture is influenced by the personalities and management styles of Executive Management, the wider culture in which the organization is situated, and the personalities of key team members at all levels of the organization. This culture and entrenched interests usually throw a wrench in the work...
In his session at DevOps Summit, Tapabrata Pal, Director of Enterprise Architecture at Capital One, will tell a story about how Capital One has embraced Agile and DevOps Security practices across the Enterprise – driven by Enterprise Architecture; bringing in Development, Operations and Information Security organizations together. Capital Ones DevOpsSec practice is based upon three "pillars" – Shift-Left, Automate Everything, Dashboard Everything. Within about three years, from 100% waterfall, C...
Fact is, enterprises have significant legacy voice infrastructure that’s costly to replace with pure IP solutions. How can we bring this analog infrastructure into our shiny new cloud applications? There are proven methods to bind both legacy voice applications and traditional PSTN audio into cloud-based applications and services at a carrier scale. Some of the most successful implementations leverage WebRTC, WebSockets, SIP and other open source technologies. In his session at @ThingsExpo, Da...
In the next five to ten years, millions, if not billions of things will become smarter. This smartness goes beyond connected things in our homes like the fridge, thermostat and fancy lighting, and into heavily regulated industries including aerospace, pharmaceutical/medical devices and energy. “Smartness” will embed itself within individual products that are part of our daily lives. We will engage with smart products - learning from them, informing them, and communicating with them. Smart produc...
Due of the rise of Hadoop, many enterprises are now deploying their first small clusters of 10 to 20 servers. At this small scale, the complexity of operating the cluster looks and feels like general data center servers. It is not until the clusters scale, as they inevitably do, when the pain caused by the exponential complexity becomes apparent. We've seen this problem occur time and time again. In his session at Big Data Expo, Greg Bruno, Vice President of Engineering and co-founder of StackIQ...
Why do your mobile transformations need to happen today? Mobile is the strategy that enterprise transformation centers on to drive customer engagement. In his general session at @ThingsExpo, Roger Woods, Director, Mobile Product & Strategy – Adobe Marketing Cloud, covered key IoT and mobile trends that are forcing mobile transformation, key components of a solid mobile strategy and explored how brands are effectively driving mobile change throughout the enterprise.
Containers have changed the mind of IT in DevOps. They enable developers to work with dev, test, stage and production environments identically. Containers provide the right abstraction for microservices and many cloud platforms have integrated them into deployment pipelines. DevOps and containers together help companies achieve their business goals faster and more effectively. In his session at DevOps Summit, Ruslan Synytsky, CEO and Co-founder of Jelastic, reviewed the current landscape of Dev...