- Email: [email protected]
Sea-Master system monitors shaft bearings and seals on board ships
NEWS Turcon sealing element. Unlike seals with pressed metal cases, a gasket is not required to provide sealing between the lip and casing. This is provided by the mechanical retention of the lip, improving both the chemical resistance and temperature range of the sealing system. The option of an integrated end-plate for the rotary shaft seal also enables end users to optimise their hardware design, to minimise envelope and part count, says Trelleborg. In addition, it is available with a hydrodynamic feature on the Turcon sealing lip. This provides a positive displacement of fluid – as a result of shaft rotation – to give improved sealing in applications where the shaft only rotates in a single direction. This feature also increases the flexibility of the lip, enabling a wider contact area between the Turcon lip and the shaft – helping to reduce shaft load and associated wear and temperature generation. Trelleborg says that unlike other PTFE lip seals, Turcon Varilip PDR seal is not limited in its temperature performance by the presence of an elastomer gasket. This gives it an excellent temperature range capability. It also has an exceptional resistance to oil additives and biofuels, which can have an adverse effect on many elastomers. Using Turcon shaft seals, therefore, allows the increased use of additives and extends oil service life. Contacts: Trelleborg Sealing Solutions, Pegasus House, 1 Cranbrook Way, Solihull Business Park, Solihull, West Midlands B90 4GT, UK. Tel: +44 121 744 1221, Email: [email protected] Trelleborg Sealing Solutions Germany GmbH, Handwerkstrasse 5–7, 70565 Stuttgart, Germany. Tel: +49 711 7864 0, Fax: +49 711 7803 171, Web: www.tss.trelleborg.com
Sea-Master system monitors shaft bearings and seals on board ships
W
ärtsilä Corp, a Finnish company that manufactures and services power sources and other equipment in the marine and energy markets, has developed a system for monitoring the condition of tail shaft equipment. Called the Sea-Master system, it uses digital technology to monitor shaft bearings and seals to help customers maximise uptime and lower lifecycle costs of vessel shaft lines. The system can be applied to open and closed4
Sealing Technology
Wärtsilä Corp’s Sea-Master system monitors the condition of tail shaft equipment on board ships, including shaft bearings and seals.
loop water-lubricated stern tubes, and closedloop oil-lubricated stern tubes. It uses digital technology coupled with composite components and existing seals, resulting in a combination that helps customers manage their assets. Sea-Master also provides an early warning for the detection of rising failure issues, with system alarms for critical path components, including bearing temperatures and lubrication rates. It is approved by relevant classification societies and is available for all vessel segments and ship types, and for new-build and retrofit applications. ‘We used our existing condition monitoring technology to develop this new system and service, which applies proven data analysis methodology to deliver not only information, but also careful expert analysis and performance-enhancing recommendations. Our customers get a window into the operational health of their tail shaft and gain knowledge about, for instance, the wear rates of the equipment. This allows for more accurate maintenance planning and reduces unforeseen risks,’ explained Matthew Bignell, Sales Development Manager, Wärtsilä Seals & Bearings. Contact: Wärtsilä Corp, John Stenbergin Ranta 2, FI-00530 Helsinki, Finland. Tel: +358 10 709 0000, Fax: +358 10 709 5700, Web: www.wartsila.com
Greene, Tweed adds stock shapes to its Arlon 3000 XT portfolio
S
tock shapes are now available for Greene, Tweed & Co Inc’s thermoplastic Arlon 3000 XT. The manufacturer of high-performance elastomers, engineered thermoplastics, thermoplastic
composites and integrated materials, says that customers can now obtain the same performance associated with this thermoplastic material – in stock shapes – whilst machining their own parts to their design specifications, and gaining better control of turnaround times and inventory levels. According to Greene, Tweed, many of the world’s leading energy service providers are already using Arlon 3000 XT finished parts to gain greater performance and certainty in downhole applications and other severe environments that demand material reliability at higher pressures and temperatures, and at higher voltages. Arlon 3000 XT stock shapes are an ideal alternative for OEMs that are looking to extend the temperature, pressure and voltage capabilities of their current PEEK or PEK materials. It is engineered to deliver superior performance (see Sealing Technology July 2015, page 3) across a wide range of applications within a broad range of industries, including the oil and gas, petrochemicals, powergenerating and aerospace sectors. Arlon 3000 XT stock shapes are: • currently available in types and sizes that include injection-moulded tubes with an outside diameter of 1–7 inches (25–178 mm) and a maximum length of 4 inches (102 mm) (though alternative stock shapes sizes are available); • available with a lead time for production of two weeks or less; • produced in the USA and ship globally; and • fully conditioned and ready to be machined. Contact: Greene, Tweed & Co Inc, 2075 Detwiler Road, Kulpsville, PA 19443-0305, USA. Tel: +1 215 256 9521, Fax: +1 215 256 0189, Web: www.Arlon3000XT.com/stock-shapes, Web: www.gtweed.com
March 2017
Sea-Master system monitors shaft bearings and seals on board ships
W
ärtsilä Corp, a Finnish company that manufactures and services power sources and other equipment in the marine and energy markets, has developed a system for monitoring the condition of tail shaft equipment. Called the Sea-Master system, it uses digital technology to monitor shaft bearings and seals to help customers maximise uptime and lower lifecycle costs of vessel shaft lines. The system can be applied to open and closed4
Sealing Technology
Wärtsilä Corp’s Sea-Master system monitors the condition of tail shaft equipment on board ships, including shaft bearings and seals.
loop water-lubricated stern tubes, and closedloop oil-lubricated stern tubes. It uses digital technology coupled with composite components and existing seals, resulting in a combination that helps customers manage their assets. Sea-Master also provides an early warning for the detection of rising failure issues, with system alarms for critical path components, including bearing temperatures and lubrication rates. It is approved by relevant classification societies and is available for all vessel segments and ship types, and for new-build and retrofit applications. ‘We used our existing condition monitoring technology to develop this new system and service, which applies proven data analysis methodology to deliver not only information, but also careful expert analysis and performance-enhancing recommendations. Our customers get a window into the operational health of their tail shaft and gain knowledge about, for instance, the wear rates of the equipment. This allows for more accurate maintenance planning and reduces unforeseen risks,’ explained Matthew Bignell, Sales Development Manager, Wärtsilä Seals & Bearings. Contact: Wärtsilä Corp, John Stenbergin Ranta 2, FI-00530 Helsinki, Finland. Tel: +358 10 709 0000, Fax: +358 10 709 5700, Web: www.wartsila.com
Greene, Tweed adds stock shapes to its Arlon 3000 XT portfolio
S
tock shapes are now available for Greene, Tweed & Co Inc’s thermoplastic Arlon 3000 XT. The manufacturer of high-performance elastomers, engineered thermoplastics, thermoplastic
composites and integrated materials, says that customers can now obtain the same performance associated with this thermoplastic material – in stock shapes – whilst machining their own parts to their design specifications, and gaining better control of turnaround times and inventory levels. According to Greene, Tweed, many of the world’s leading energy service providers are already using Arlon 3000 XT finished parts to gain greater performance and certainty in downhole applications and other severe environments that demand material reliability at higher pressures and temperatures, and at higher voltages. Arlon 3000 XT stock shapes are an ideal alternative for OEMs that are looking to extend the temperature, pressure and voltage capabilities of their current PEEK or PEK materials. It is engineered to deliver superior performance (see Sealing Technology July 2015, page 3) across a wide range of applications within a broad range of industries, including the oil and gas, petrochemicals, powergenerating and aerospace sectors. Arlon 3000 XT stock shapes are: • currently available in types and sizes that include injection-moulded tubes with an outside diameter of 1–7 inches (25–178 mm) and a maximum length of 4 inches (102 mm) (though alternative stock shapes sizes are available); • available with a lead time for production of two weeks or less; • produced in the USA and ship globally; and • fully conditioned and ready to be machined. Contact: Greene, Tweed & Co Inc, 2075 Detwiler Road, Kulpsville, PA 19443-0305, USA. Tel: +1 215 256 9521, Fax: +1 215 256 0189, Web: www.Arlon3000XT.com/stock-shapes, Web: www.gtweed.com
March 2017