Posts Tagged ‘mechanical seal’

Technical Paper: High-performance carbon – the service life extender for pumps

Thursday, July 19th, 2018 von admin

Slides assume the main job of generating the vacuum – more than 30,000 hours of durability were achieved using a new material

Whether slide bearings, sliders or mechanical seals – all these components are exposed to high loads on a daily basis and, therefore, wear out. With innovative materials, however, maintenance intervals and the service life of pumps and seals can be extended considerably, as evidenced by developments in carbon materials.

Selecting the right material determines the service life of machines, units, and systems. Conventional materials often reach their load capacity limits, especially in pumps and mechanical seals. Schunk Carbon Technology develops and produces materials for seal rings, slide bearings, and pump components made of carbon and silicon carbide. These innovative materials particularly excel in the areas of abrasion resistance, sliding capability, media resistance, and temperature resistance. Carbon in the form of graphite also has the characteristic property of self-lubrication. All in all, exactly the features required in demanding industrial environments. “In practice, their use leads to a significant increase in service life and extended service intervals,” says Thomas Kräuter, Sales Director of the Mechanical Carbon Industry at Schunk. It is not enough to simply replace a material; many years of expertise are required. Three current development projects demonstrate the path from material to functioning components, leading to new materials that considerably extend the service life of pumps, seals and the like.

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John Crane showing innovative solutions at Achema 2018

Thursday, February 22nd, 2018 von admin

Illustrating the depth of engineering expertise available from John Crane, the booth will be the place for discussion and insights around topics such as the implications of the planned amendment of TA Luft regulations on rotating equipment, and the difference between seal face treatments available and why they are not “one size fits all.”

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Flowserve: Seal Failure Analysis App

Wednesday, July 13th, 2016 von admin

Learn how to visually identify and prevent mechanical seal failures with this easy-to-use reference tool. Accessible via desktop, tablet and mobile devices, this app is an invaluable resource for maintenance personnel and reliability engineers tasked with troubleshooting seal failures and maximizing equipment uptime. More details in this video:

www.flowserve.com

EagleBurgmann: New mechanical seal for chemical pumps

Wednesday, September 9th, 2015 von admin

PM EagleBurgmann HRCNWith the HRC N mechanical seal series, EagleBurgmann provides a seal system (version DIN 24960, Part C) for standard chemical pumps with conically opened sealed space that complies with the requirements for a standardized and application-related seal solution.

As a novelty within the HRC… N series, EagleBurgmann has now launched the optimized double seal HRC3300N on the market that has the same mounting dimensions and which uses some of the non-variable parts from the predecessor HRC3000N. A new stationary seat that does not require binding was used. This, and the improvements to the seal on the atmosphere side, makes the HRC3300N definitely more service friendly. Omitting the binding makes it possible to use the high-performance DiamondFace diamond coating, and the operating temperature increases to +200°C (+392°F). (more…)

EagleBurgmann: Tried and tested 500,000-fold

Saturday, August 15th, 2015 von admin

Cartex 500 000 DFEagleBurgmann Cartex cartridge mechanical seals are completely pre-assembled and exactly positioned component seals with lid and shaft sleeve. They are fitted in the pumps of many industrial sectors, such as e.g. in chemistry, in water applications, in the food industry and in many other applications. More than 500,000 seals have been installed in the meantime and have proven their reliability and economic efficiency.

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EagleBurgmann: Seal concept for light vaporous media

Friday, August 7th, 2015 von admin

PM_DF-P-DGS6With the DF(P)DGS6 EagleBurgmann offers reliable shaft sealing for API 610 high-performance pumps, e.g. BB3 and BB4 process pumps, and vertical pumps applied in liquefied gas fractionation, in pump stations of downstream NGL (Natural Gas Liquids) pipelines and also in CO2 applications.

Numerous plant operators experience problems incurred by temperature and pressure fluctuations in the pump. In conjunction with the low vapor pressure margin of the medium (e.g. ethane, propane), this can cause phase transitions between liquid and gas at the seal faces – they run dry. Conventional mechanical seals consequently sustain damages which results in seal failures.

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