- Email: [email protected]
AREVA qualifies new hydrodynamic seal
NEWS
Editorial Office: Elsevier Ltd The Boulevard, Langford Lane Kidlington, Oxford OX5 1GB, UK Fax: +44 (0)1865 843973 Web: www.sealingtechnology.info Publisher: GregHopwood Valero Publisher: David E-mail: [email protected] Editor: Simon Atkinson Editor: Simon Atkinson Tel/Fax: +44 (0) 1904 655944 Tel: +44 (0) 1904 655944 E-mail: [email protected] E-mail: [email protected] Technical Editor: Bob Flitney Technical Flitney Tel: +44 Editor: (0)1588Bob 661056 +44 (0)1799 501659 E-mail:Tel: [email protected] E-mail: [email protected] Production Support Manager: Lin Lucas Production Manager: Lin Lucas E-mail:Support [email protected] E-mail: [email protected] Editorial advisory board: Editorial advisory board: $IDIER &RIBOURG & s #YRIL 8 ,ATTY & 9VES "IREMBAUT & s #YRIL 8 ,ATTY & !MRAT 0ARMAR 5+ s 2ICHARD & 3ALANT 53! !MRAT 0ARMAR 5+ s 2ICHARD & 3ALANT 53! 7OLFGANG 3CHÚPPLEIN $ s 3HUZO 3EYA * 7OLFGANG 3CHÚPPLEIN $ s 3HUZO 3EYA * 3COTT 3VENDSEN 53! s $R "RIAN 3 %LLIS 5+ Scott Svendsen (USA) Subscription Information Subscription Information An annual subscription to Sealing Technology includes 12 An annual issues and subscription online accesstoforSealing up to Technology 5 users. includes 12 issues and online access for up to 5 users. Prices: Prices:for all European countries & Iran 1273 1215 forfor allall European & Iran and Japan US$1427 countriescountries except Europe US$1362 countries except Europe and Japan ¥169 100 for for all Japan ¥161 400 foruntil Japan (Prices valid 31 December 2012) (Prices valid until July 2012) To subscribe send 31 payment to the address above. To subscribe send payment to the address above. Tel: +44 (0)1865 843687 Tel: +44 (0)1865 843687/Fax: +44 (0)1865 834971 or via www.sealingtechnology.info Email: [email protected], Subscriptions run for 12 months, from the date payment is or via www.sealingtechnology.info. received. Subscriptions run for 12 months, from the date payment is received. Permissions may be sought directly from Elsevier Global Rights Department, PO Box 800, Oxford OX5 1DX, UK; phone: +44 1865 Permissions be sought from Elsevier Global Rights 843830, fax: may +44 1865 853333,directly email: [email protected]. You Department, PO Box 800, Oxford OX5 through 1DX, UK; phone: home +44 1865 may also contact Global Rights directly Elsevier’s page 843830, fax: +44 1865 853333, [email protected]. You (www.elsevier.com), selecting firstemail: ‘Support & contact’, then ‘Copyright may also contact Rights directly Elsevier’s home page & permission’. In Global the USA, users may through clear permissions and make (www.elsevier.com), first ‘Support Center, & contact’, payments through theselecting Copyright Clearance Inc.,then 222 ‘Copyright Rosewood & permission’. In the USA,USA; users may +1 clear and+1make Drive, Danvers, MA 01923, phone: 978permissions 750 8400, fax: 978 payments through thethrough Copyright Clearance Center, Inc.,Rapid 222 750 4744, and in the UK the Copyright Licensing Agency Rosewood Service Drive, Danvers, MA9001923, USA; phone: +1 978 750 8400, Clearance (CLARCS), Tottenham Court Road, London W1P fax: +1 750+44 4744, and7631 in the UK through Copyright Licensing 0LP, UK;978 phone: (0)20 5555; fax: +44the (0)20 7631 5500. Other Agency Rapid Service (CLARCS), 90 Tottenham Court Road, countries may Clearance have a local reprographic rights agency for payments. London W1PWorks 0LP, UK; phone: +44 (0)20 7631 5555; fax: +44 (0)20 Derivative 7631 5500.may Other countries mayofhave a local reprographic Subscribers reproduce tables contents or prepare lists ofrights artiagency for payments. cles including abstracts for internal circulation within their institutions. 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Except as outlined above, no part of this publication may Permission of the Publisher is required to or store or use electronically be reproduced, stored in a retrieval system transmitted in any form anybymaterial contained in thismechanical, journal, including any article or part or of or any means, electronic, photocopying, recording an article. Except outlined above, no partofofthe thisPublisher. publication may otherwise, withoutasprior written permission Address be reproduced, storedto: in Elsevier a retrieval system or transmitted in any form permissions requests Science Global Rights Department, at or by anyfax means, electronic, mechanical, photocopying, recording or the mail, and email addresses noted above. otherwise, without prior written permission of the Publisher. Address Notice permissions requests to: Elsevier Science Global Department, at No responsibility is assumed by the Publisher forRights any injury and/ thedamage mail, faxtoand emailoraddresses above.of products liability, or persons property noted as a matter Notice negligence or otherwise, or from any use or operation of any methNo responsibility is assumed thecontained Publisher in forthe anymaterial injury and/ ods, products, instructions or by ideas herein. or damage persons as a matter of products liability, Because of to rapid advanorcesproperty in the medical sciences, in particular, indenegligence or otherwise, or from any or dosages operation of anybemethpendent verification of diagnoses anduse drug should made. ods, products, instructionsmaterial or ideasis contained in conform the material herein. Although all advertising expected to to ethical Because ofstandards, rapid advan ces in the medical sciences, in particular, inde-a (medical) inclusion in this publication does not constitute pendent verification of diagnoses and drug be made. guarantee or endorsement of the quality or dosages value of should such product or Although all advertising material is expected to conform to ethical of the claims made of it by its manufacturer. (medical) standards, inclusion in this publication does not constitute a guarantee or endorsement of the quality or value of such product or of the claims made of it by its manufacturer.
12980 02129 Digitally Produced by Mayfield Press (Oxford) Ltd Digitally Produced by Mayfield Press (Oxford) Ltd
2
Sealing Technology
AREVA qualifies new hydrodynamic seal
I
n France, AREVA JSPM, a subsidiary of the AREVA Group that specialises in nuclear reactor pumps and devices, reports that it has successfully qualified a new hydrodynamic shaft seal system (HD seal) that can withstand station black-out (SBO) conditions for an unrivalled period of 120 hours. While new Safety Authority requirements recommend a minimum coping time of 72 hours, the tests performed by the company – under severe SBO conditions (a high water temperature of 310°C and high pressure of 175 bar (17.5 MPa)) – confirmed that the new HD seal is capable of maintaining the integrity of the primary circuit for 120 hours, which considerably increases current plant safety margins. The seal’s design includes triple redundancy, which improves reliability and stability. In addition it has an extended service life of a minimum of 10 years. This means that it can run for longer periods before it needs to be inspected. It also requires minimal maintenance, which optimises plant availability. As a key element of the reactor coolant pump (RCP), which circulates the primary coolant between the core and the steam generator, the shaft seal system ensures that the primary circuit is leak-tight. Therefore, it is essential to maintain the system’s performance even under extreme conditions such as an extended SBO, in order to protect the reactor core and preserve the plant’s safety and integrity. ‘The SBO qualification of our new HD seal for 120 hours represents a major industry step forward for enhanced plant safety,’ commented Thierry Schietecatte, Chief Executive Officer, AREVA JSPM. ‘It is the result of years of R&D combined with AREVA JSPM’s 40 years of maintenance experience on more than 400 RCPs worldwide, and close collaboration with utilities.’ Part of AREVA’s Safety Alliance programme – developed to help utilities demonstrate and upgrade the safety of their nuclear plant fleets – the new HD seal system has been designed to be installed in existing RCPs as a replacement for current hydrostatic seals, as well as in thirdgeneration RCPs for new nuclear power plants. It is suitable for the new-build market and installed base applications. Contacts: AREVA JSPM, 27 rue de l’Industrie, BP 189, 59573 Jeumont Cedex, France. Tel: +33 3 2769 9000, Fax: +33 3 2767 1611
AREVA Group, 33 rue la Fayette, 75442 Paris, Cedex 09, France. Tel: +33 1 3496 0000, Fax: +33 1 34 96 0001, Web: www.areva.com
Low-friction engine seal joins SKF’s BeyondZero portfolio
S
KF’s low-friction engine seal has become part of its BeyondZero portfolio that aims to help customers reduce the impact they have on the environment. The seal has a low friction elastomer lip design which is based on the wafer technology used for polytetrafluoroethylene (PTFE) shaft seals. However, it uses a specially formulated FKM material that is engineered to have improved compression set and relaxation properties – resulting in better performance without the added cost of a mechanical spring. This creates a seal design that provides very low friction and outstanding sealing security, and has a long service life, says the firm. According to SKF, the seal reduces friction levels by up to 55%, compared with conventional seals, which provides carbon dioxide savings of over 1 g/km. Based on an annual mileage of 14 500 km it says this equates to a reduction of 14.5 kg of carbon dioxide per year. Equipping one million cars with the firm’s technology would result in a reduction in carbon dioxide of 14 500 tonnes of per year. These results are applicable to the four seals used in a four-cylinder gasoline-engine mid-size passenger car. ‘SKF has a strong focus on sustainability and it low-friction seal addresses the automotive industry’s need to reduce fuel consumption and emissions,’ said William Schaid, Vice President Global Technology, SKF Automotive Sealing Solutions. Now in full production, the seal is available for all rotating shafts, primarily in engines, but also in transmissions. Special custom designs are also available. For example, some include a plastic bayonet fitting, while others can be used in the firm’s Rotostat sealing modules. SKF launched its BeyondZero portfolio in May 2012. The environmental improvements provided by technology and products within this portfolio are validated through a life cycle assessment methodology developed by the company’s sustainability engineers. Results will be reviewed yearly by KPMG. Tom Johnstone, President and Chief Executive Officer, SKF, commented: ‘The SKF BeyondZero portfolio is a major step for SKF in its development of technology and products
July 2012
Editorial Office: Elsevier Ltd The Boulevard, Langford Lane Kidlington, Oxford OX5 1GB, UK Fax: +44 (0)1865 843973 Web: www.sealingtechnology.info Publisher: GregHopwood Valero Publisher: David E-mail: [email protected] Editor: Simon Atkinson Editor: Simon Atkinson Tel/Fax: +44 (0) 1904 655944 Tel: +44 (0) 1904 655944 E-mail: [email protected] E-mail: [email protected] Technical Editor: Bob Flitney Technical Flitney Tel: +44 Editor: (0)1588Bob 661056 +44 (0)1799 501659 E-mail:Tel: [email protected] E-mail: [email protected] Production Support Manager: Lin Lucas Production Manager: Lin Lucas E-mail:Support [email protected] E-mail: [email protected] Editorial advisory board: Editorial advisory board: $IDIER &RIBOURG & s #YRIL 8 ,ATTY & 9VES "IREMBAUT & s #YRIL 8 ,ATTY & !MRAT 0ARMAR 5+ s 2ICHARD & 3ALANT 53! !MRAT 0ARMAR 5+ s 2ICHARD & 3ALANT 53! 7OLFGANG 3CHÚPPLEIN $ s 3HUZO 3EYA * 7OLFGANG 3CHÚPPLEIN $ s 3HUZO 3EYA * 3COTT 3VENDSEN 53! s $R "RIAN 3 %LLIS 5+ Scott Svendsen (USA) Subscription Information Subscription Information An annual subscription to Sealing Technology includes 12 An annual issues and subscription online accesstoforSealing up to Technology 5 users. includes 12 issues and online access for up to 5 users. Prices: Prices:for all European countries & Iran 1273 1215 forfor allall European & Iran and Japan US$1427 countriescountries except Europe US$1362 countries except Europe and Japan ¥169 100 for for all Japan ¥161 400 foruntil Japan (Prices valid 31 December 2012) (Prices valid until July 2012) To subscribe send 31 payment to the address above. To subscribe send payment to the address above. Tel: +44 (0)1865 843687 Tel: +44 (0)1865 843687/Fax: +44 (0)1865 834971 or via www.sealingtechnology.info Email: [email protected], Subscriptions run for 12 months, from the date payment is or via www.sealingtechnology.info. received. Subscriptions run for 12 months, from the date payment is received. Permissions may be sought directly from Elsevier Global Rights Department, PO Box 800, Oxford OX5 1DX, UK; phone: +44 1865 Permissions be sought from Elsevier Global Rights 843830, fax: may +44 1865 853333,directly email: [email protected]. You Department, PO Box 800, Oxford OX5 through 1DX, UK; phone: home +44 1865 may also contact Global Rights directly Elsevier’s page 843830, fax: +44 1865 853333, [email protected]. You (www.elsevier.com), selecting firstemail: ‘Support & contact’, then ‘Copyright may also contact Rights directly Elsevier’s home page & permission’. In Global the USA, users may through clear permissions and make (www.elsevier.com), first ‘Support Center, & contact’, payments through theselecting Copyright Clearance Inc.,then 222 ‘Copyright Rosewood & permission’. In the USA,USA; users may +1 clear and+1make Drive, Danvers, MA 01923, phone: 978permissions 750 8400, fax: 978 payments through thethrough Copyright Clearance Center, Inc.,Rapid 222 750 4744, and in the UK the Copyright Licensing Agency Rosewood Service Drive, Danvers, MA9001923, USA; phone: +1 978 750 8400, Clearance (CLARCS), Tottenham Court Road, London W1P fax: +1 750+44 4744, and7631 in the UK through Copyright Licensing 0LP, UK;978 phone: (0)20 5555; fax: +44the (0)20 7631 5500. Other Agency Rapid Service (CLARCS), 90 Tottenham Court Road, countries may Clearance have a local reprographic rights agency for payments. London W1PWorks 0LP, UK; phone: +44 (0)20 7631 5555; fax: +44 (0)20 Derivative 7631 5500.may Other countries mayofhave a local reprographic Subscribers reproduce tables contents or prepare lists ofrights artiagency for payments. cles including abstracts for internal circulation within their institutions. DerivativeofWorks Permission the Publisher is required for resale or distribution outside Subscribers mayPermission reproduce of tables contentsisorrequired preparefor listsallofother artithe institution. the of Publisher cles including abstracts for compilations internal circulation within their institutions. derivative works, including and translations. Permission ofStorage the Publisher is required for resale or distribution outside Electronic or Usage the institution. Permission Publisher is required for all other Permission of the Publisherofis the required to store or use electronically derivative works, including compilations and translations. any material contained in this journal, including any article or part of Electronic Storage or Usage an article. Except as outlined above, no part of this publication may Permission of the Publisher is required to or store or use electronically be reproduced, stored in a retrieval system transmitted in any form anybymaterial contained in thismechanical, journal, including any article or part or of or any means, electronic, photocopying, recording an article. Except outlined above, no partofofthe thisPublisher. publication may otherwise, withoutasprior written permission Address be reproduced, storedto: in Elsevier a retrieval system or transmitted in any form permissions requests Science Global Rights Department, at or by anyfax means, electronic, mechanical, photocopying, recording or the mail, and email addresses noted above. otherwise, without prior written permission of the Publisher. Address Notice permissions requests to: Elsevier Science Global Department, at No responsibility is assumed by the Publisher forRights any injury and/ thedamage mail, faxtoand emailoraddresses above.of products liability, or persons property noted as a matter Notice negligence or otherwise, or from any use or operation of any methNo responsibility is assumed thecontained Publisher in forthe anymaterial injury and/ ods, products, instructions or by ideas herein. or damage persons as a matter of products liability, Because of to rapid advanorcesproperty in the medical sciences, in particular, indenegligence or otherwise, or from any or dosages operation of anybemethpendent verification of diagnoses anduse drug should made. ods, products, instructionsmaterial or ideasis contained in conform the material herein. Although all advertising expected to to ethical Because ofstandards, rapid advan ces in the medical sciences, in particular, inde-a (medical) inclusion in this publication does not constitute pendent verification of diagnoses and drug be made. guarantee or endorsement of the quality or dosages value of should such product or Although all advertising material is expected to conform to ethical of the claims made of it by its manufacturer. (medical) standards, inclusion in this publication does not constitute a guarantee or endorsement of the quality or value of such product or of the claims made of it by its manufacturer.
12980 02129 Digitally Produced by Mayfield Press (Oxford) Ltd Digitally Produced by Mayfield Press (Oxford) Ltd
2
Sealing Technology
AREVA qualifies new hydrodynamic seal
I
n France, AREVA JSPM, a subsidiary of the AREVA Group that specialises in nuclear reactor pumps and devices, reports that it has successfully qualified a new hydrodynamic shaft seal system (HD seal) that can withstand station black-out (SBO) conditions for an unrivalled period of 120 hours. While new Safety Authority requirements recommend a minimum coping time of 72 hours, the tests performed by the company – under severe SBO conditions (a high water temperature of 310°C and high pressure of 175 bar (17.5 MPa)) – confirmed that the new HD seal is capable of maintaining the integrity of the primary circuit for 120 hours, which considerably increases current plant safety margins. The seal’s design includes triple redundancy, which improves reliability and stability. In addition it has an extended service life of a minimum of 10 years. This means that it can run for longer periods before it needs to be inspected. It also requires minimal maintenance, which optimises plant availability. As a key element of the reactor coolant pump (RCP), which circulates the primary coolant between the core and the steam generator, the shaft seal system ensures that the primary circuit is leak-tight. Therefore, it is essential to maintain the system’s performance even under extreme conditions such as an extended SBO, in order to protect the reactor core and preserve the plant’s safety and integrity. ‘The SBO qualification of our new HD seal for 120 hours represents a major industry step forward for enhanced plant safety,’ commented Thierry Schietecatte, Chief Executive Officer, AREVA JSPM. ‘It is the result of years of R&D combined with AREVA JSPM’s 40 years of maintenance experience on more than 400 RCPs worldwide, and close collaboration with utilities.’ Part of AREVA’s Safety Alliance programme – developed to help utilities demonstrate and upgrade the safety of their nuclear plant fleets – the new HD seal system has been designed to be installed in existing RCPs as a replacement for current hydrostatic seals, as well as in thirdgeneration RCPs for new nuclear power plants. It is suitable for the new-build market and installed base applications. Contacts: AREVA JSPM, 27 rue de l’Industrie, BP 189, 59573 Jeumont Cedex, France. Tel: +33 3 2769 9000, Fax: +33 3 2767 1611
AREVA Group, 33 rue la Fayette, 75442 Paris, Cedex 09, France. Tel: +33 1 3496 0000, Fax: +33 1 34 96 0001, Web: www.areva.com
Low-friction engine seal joins SKF’s BeyondZero portfolio
S
KF’s low-friction engine seal has become part of its BeyondZero portfolio that aims to help customers reduce the impact they have on the environment. The seal has a low friction elastomer lip design which is based on the wafer technology used for polytetrafluoroethylene (PTFE) shaft seals. However, it uses a specially formulated FKM material that is engineered to have improved compression set and relaxation properties – resulting in better performance without the added cost of a mechanical spring. This creates a seal design that provides very low friction and outstanding sealing security, and has a long service life, says the firm. According to SKF, the seal reduces friction levels by up to 55%, compared with conventional seals, which provides carbon dioxide savings of over 1 g/km. Based on an annual mileage of 14 500 km it says this equates to a reduction of 14.5 kg of carbon dioxide per year. Equipping one million cars with the firm’s technology would result in a reduction in carbon dioxide of 14 500 tonnes of per year. These results are applicable to the four seals used in a four-cylinder gasoline-engine mid-size passenger car. ‘SKF has a strong focus on sustainability and it low-friction seal addresses the automotive industry’s need to reduce fuel consumption and emissions,’ said William Schaid, Vice President Global Technology, SKF Automotive Sealing Solutions. Now in full production, the seal is available for all rotating shafts, primarily in engines, but also in transmissions. Special custom designs are also available. For example, some include a plastic bayonet fitting, while others can be used in the firm’s Rotostat sealing modules. SKF launched its BeyondZero portfolio in May 2012. The environmental improvements provided by technology and products within this portfolio are validated through a life cycle assessment methodology developed by the company’s sustainability engineers. Results will be reviewed yearly by KPMG. Tom Johnstone, President and Chief Executive Officer, SKF, commented: ‘The SKF BeyondZero portfolio is a major step for SKF in its development of technology and products
July 2012