- Email: [email protected]
Axle seals are added to Daemar product line
NEWS will find potential applications in the cornprocessing, biofuels, chemicals, petrochemicals, pulp and paper, water and wastewater, mining and power industries. Contact: Flowserve Corp, 5215 N. O’Connor Boulevard, Suite 2300, Irving, TX 75039, USA. Tel: +1 972 443 6500, Fax: +1 972 443 6800, Web: www.flowserve.com.
Axle seals are added to Daemar product line
D
aemar’s shaft seal product range has been expanded to include a range of DMR axle seals for truck and trailer applications. ‘These unitised seals excel in environments where outside contaminants can damage exposed sealing lips. They are compatible with Stemco and Scotseals,’ explained Craig Pirie, Vice President, Daemar. The DMR seal design features a spring-loaded sealing lip that runs against the inner wall of the metal casing. Dirt is excluded by two wiper lips. Typical applications include trucks, trailers, agricultural tractors, mining bogies, construction machinery and other equipment that operates in severe environments.
Contact: Daemar Inc, 861 Cranberry Court, Oakville, Ontario L6L 6J7, Canada. Tel: +1 905 847 6500, Fax: +1 905 847 6943, Email: [email protected], Web: www.daemar.com.
FDA approves sealant for repairing dural membrane
C
ovidien Plc, a provider of healthcare products, has launched the DuraSeal spine sealant, the first product approved by the US Food and Drug Administration (FDA) for intra-operative sealing of the dural membrane during spine procedures. Nearly 1.5 million spine surgeries are performed in the USA every year, with an estimated 10% of these surgeries requiring dural repair and sealing. Tears in the dura – the outermost membrane covering the brain and the spinal cord – can result in cerebral spinal fluid (CSF) leakage after surgery, leading to possible medical complications and extended hospital stays. One recent study found that CSF leaks after 4
Sealing Technology
spinal surgery are estimated to cost an average of US$6479 in additional expense, mainly because of the longer time spent in hospital and intensive care. In a clinical study of more than 150 patients, DuraSeal spine sealant was shown to be better at achieving an intra-operative, watertight seal than the control group, which used conventional methods of dural closure, such as sutures or fibrin sealants, says the firm. DuraSeal spine sealant achieved an intra-operative, watertight seal 100% of the time, compared with 64% of the time by the control group. The safety results between the two groups were similar, given the patients’ medical conditions and the nature of the complex spinal procedures performed. Contact: Covidien Plc, Cherrywood Business Park, Loughlinstown, Co Dublin, Ireland. Tel: +353 1 439 3000, www.durasealspine.com, www.covidien.com. Covidien, 15 Hampshire Street, Mansfield, MA 02048, USA. Tel: +1 508 261 8000.
Dana launches eco-friendly cylinder-head cover
D
ana Holding Corp has announced that it is supplying cylinder-head covers made from a recycled material for use on Ford Motor Co’s 3.0-litre Duratec engine, which will power the 2010 Fusion and Escape vehicles – providing significant cost and environmental benefits. Manufactured using EcoLon nylon, the cover is the first automotive product of its kind to be made from post-consumer recycled (PCR) nylon. Dana partnered with Wellman Engineering Resins – a major compounder and supplier of high-quality nylon resins – to test, develop and supply the material. To ‘re-purpose’ nylon, Wellman grinds used nylon carpeting into fibre and recaptures the material through a proprietary process. The resulting product is a high-quality nylon resin that Dana then uses to produce cylinder-head covers using its injection-moulding process. The cylinder-head covers are part of a modulebased sealing system that Dana supplies for the Ford Fusion and Escape vehicle programmes, which also includes the engine cover, gaskets, fasteners, baffle/air-oil separator and isolators. Dana developed, tested and is manufacturing the cylinder-head covers at its Composite Sealing Center in Paris, Tennessee, USA.
Contact: Dana Corp, 1350 Eisenhower Place, Ann Arbor, MI 48108-3282, USA. Tel: +1 734 975 4777, Fax: +1 734 975 7820, Web: www.dana.com.
O-ring calculator is updated and improved
T
relleborg Sealing Solutions’ O-ring calculator software has had a major update and includes some important new features. The general capabilities of this program have been discussed previously in Sealing Technology (May 2008). Enhancements in the latest update include an ISO quick search button that enables users to perform rapid O-ring calculations. After entering the bore or shaft diameter, the software specifies an O-ring recommendation conforming to ISO 3601-1, if a suitable size exists. The O-ring matching housing is then calculated according to the recommendations of ISO 3601-2. The O-ring quick search button generates a selection of O-ring nominal sizes according to a range of national/international standards, including ISO 3601-1, AS568C (USA), JIS B 2401 (Japan) NFT 47-501(France) and SMS 1586 (Sweden). Other additions to this latest version of the software include further pre-set fits, according to ISO 286-2; more pre-set material groups; new O-ring tolerances, according to ISO 36011 Class B; and a new equation for calculating O-ring cross-section reduction caused by the elongation of the O-ring inner diameter The software is available free of charge for on-line use, and is accessed by registering as a user on the company’s Web-site.
Contact: Trelleborg Sealing Solutions, Global Marketing & Communications, Handwerkstrasse 5–7, D-70565 Stuttgart, Germany. Tel: +49 711 78640, Fax: +49 711 7864344, Email: [email protected], Web: www.tss.trelleborg.com.
Editor’s comment: This software is easy to use and Trelleborg has progressively updated its capabilities, taking into account users’ comments. The ability to assess different materials and groove dimensions for critical situations, such as temperature extremes, is very useful. The ISO button is convenient, but it rapidly demonstrates the major limitation of ISO 3601. It is possible to put in relatively small and widely used shaft dimensions, such as a 15 mm or 25 mm, but no O-ring can be found.
December 2009
Axle seals are added to Daemar product line
D
aemar’s shaft seal product range has been expanded to include a range of DMR axle seals for truck and trailer applications. ‘These unitised seals excel in environments where outside contaminants can damage exposed sealing lips. They are compatible with Stemco and Scotseals,’ explained Craig Pirie, Vice President, Daemar. The DMR seal design features a spring-loaded sealing lip that runs against the inner wall of the metal casing. Dirt is excluded by two wiper lips. Typical applications include trucks, trailers, agricultural tractors, mining bogies, construction machinery and other equipment that operates in severe environments.
Contact: Daemar Inc, 861 Cranberry Court, Oakville, Ontario L6L 6J7, Canada. Tel: +1 905 847 6500, Fax: +1 905 847 6943, Email: [email protected], Web: www.daemar.com.
FDA approves sealant for repairing dural membrane
C
ovidien Plc, a provider of healthcare products, has launched the DuraSeal spine sealant, the first product approved by the US Food and Drug Administration (FDA) for intra-operative sealing of the dural membrane during spine procedures. Nearly 1.5 million spine surgeries are performed in the USA every year, with an estimated 10% of these surgeries requiring dural repair and sealing. Tears in the dura – the outermost membrane covering the brain and the spinal cord – can result in cerebral spinal fluid (CSF) leakage after surgery, leading to possible medical complications and extended hospital stays. One recent study found that CSF leaks after 4
Sealing Technology
spinal surgery are estimated to cost an average of US$6479 in additional expense, mainly because of the longer time spent in hospital and intensive care. In a clinical study of more than 150 patients, DuraSeal spine sealant was shown to be better at achieving an intra-operative, watertight seal than the control group, which used conventional methods of dural closure, such as sutures or fibrin sealants, says the firm. DuraSeal spine sealant achieved an intra-operative, watertight seal 100% of the time, compared with 64% of the time by the control group. The safety results between the two groups were similar, given the patients’ medical conditions and the nature of the complex spinal procedures performed. Contact: Covidien Plc, Cherrywood Business Park, Loughlinstown, Co Dublin, Ireland. Tel: +353 1 439 3000, www.durasealspine.com, www.covidien.com. Covidien, 15 Hampshire Street, Mansfield, MA 02048, USA. Tel: +1 508 261 8000.
Dana launches eco-friendly cylinder-head cover
D
ana Holding Corp has announced that it is supplying cylinder-head covers made from a recycled material for use on Ford Motor Co’s 3.0-litre Duratec engine, which will power the 2010 Fusion and Escape vehicles – providing significant cost and environmental benefits. Manufactured using EcoLon nylon, the cover is the first automotive product of its kind to be made from post-consumer recycled (PCR) nylon. Dana partnered with Wellman Engineering Resins – a major compounder and supplier of high-quality nylon resins – to test, develop and supply the material. To ‘re-purpose’ nylon, Wellman grinds used nylon carpeting into fibre and recaptures the material through a proprietary process. The resulting product is a high-quality nylon resin that Dana then uses to produce cylinder-head covers using its injection-moulding process. The cylinder-head covers are part of a modulebased sealing system that Dana supplies for the Ford Fusion and Escape vehicle programmes, which also includes the engine cover, gaskets, fasteners, baffle/air-oil separator and isolators. Dana developed, tested and is manufacturing the cylinder-head covers at its Composite Sealing Center in Paris, Tennessee, USA.
Contact: Dana Corp, 1350 Eisenhower Place, Ann Arbor, MI 48108-3282, USA. Tel: +1 734 975 4777, Fax: +1 734 975 7820, Web: www.dana.com.
O-ring calculator is updated and improved
T
relleborg Sealing Solutions’ O-ring calculator software has had a major update and includes some important new features. The general capabilities of this program have been discussed previously in Sealing Technology (May 2008). Enhancements in the latest update include an ISO quick search button that enables users to perform rapid O-ring calculations. After entering the bore or shaft diameter, the software specifies an O-ring recommendation conforming to ISO 3601-1, if a suitable size exists. The O-ring matching housing is then calculated according to the recommendations of ISO 3601-2. The O-ring quick search button generates a selection of O-ring nominal sizes according to a range of national/international standards, including ISO 3601-1, AS568C (USA), JIS B 2401 (Japan) NFT 47-501(France) and SMS 1586 (Sweden). Other additions to this latest version of the software include further pre-set fits, according to ISO 286-2; more pre-set material groups; new O-ring tolerances, according to ISO 36011 Class B; and a new equation for calculating O-ring cross-section reduction caused by the elongation of the O-ring inner diameter The software is available free of charge for on-line use, and is accessed by registering as a user on the company’s Web-site.
Contact: Trelleborg Sealing Solutions, Global Marketing & Communications, Handwerkstrasse 5–7, D-70565 Stuttgart, Germany. Tel: +49 711 78640, Fax: +49 711 7864344, Email: [email protected], Web: www.tss.trelleborg.com.
Editor’s comment: This software is easy to use and Trelleborg has progressively updated its capabilities, taking into account users’ comments. The ability to assess different materials and groove dimensions for critical situations, such as temperature extremes, is very useful. The ISO button is convenient, but it rapidly demonstrates the major limitation of ISO 3601. It is possible to put in relatively small and widely used shaft dimensions, such as a 15 mm or 25 mm, but no O-ring can be found.
December 2009