- Email: [email protected]
Runner blade trunnion split seal increases Kaplan Turbine reliability
NEWS
Editorial EditorialOffice: Office: Elsevier ElsevierLtd Ltd TheThe Boulevard, Boulevard,Langford Langford Lane Lane Kidlington, Kidlington,Oxford Oxford OX5 OX5 1GB, 1GB,UK UK Fax:Tel: +44 +44 (0)1865 1865 843239 843973 Web: Web: www.sealingtechnology.info www.sealingtechnology.info Publisher: Greg Valero Executive Publisher: Laney Priestley E-mail: [email protected] Editor: Simon Atkinson Editor:+44 Simon Atkinson Tel/Fax: (0) 1904 655944 Tel: +44 (0) 1904 655944 E-mail: [email protected] E-mail: [email protected] Production Support Lin Lucas Technical Editor:Manager: Bob Flitney E-mail: Tel: [email protected] (0)1799 501659 E-mail: [email protected] Editorial advisory board: Production Support Lin Lucas Didier Fribourg (F) •Manager: Amrat Parmar (UK) E-mail: [email protected] Richard F Salant (USA) Wolfgang Schöpplein (D) • Shuzo Seya (J) Editorial(USA) advisory board: Scott Svendsen • Dr Brian S Ellis (UK) Yves Birembaut • Cyril X Latty(F) (F) Bob Flitney (UK)(F)Noël Brunetière Amrat Parmar (UK) • Richard F Salant (USA) Subscription Information Wolfgang Schöpplein (D) • Shuzo Seya (J) An annual subscription Sealing Technology Scottto Svendsen (USA) includes 12 issues and online access for up to 5 users. Subscriptions Information run for 12 months, from the date Subscription is received. to Sealing Technology includes 12 Anpayment annual subscription issues and online access for up to 5 users. More information: www.elsevier.com/journals/instituPrices: tional/sealing-technology/1350-4789 E1215 for all European countries & Iran US$1362 for all countries except Europe and Japan Permissions be sought directly from Elsevier Global Rights ¥161 400 formay Japan Department, PO Box Oxford 2018) OX5 1DX, UK; phone: +44 1865 (Prices valid until 31 800, July-April fax: +44 853333,toemail: [email protected]. You To843830, subscribe send1865 payment the address above. may also(0)1865 contact Global Rights directly through Elsevier’s Tel: +44 843687/Fax: +44 (0)1865 834971 home page (www.elsevier.com), selecting first ‘Support & contact’, then ‘Copyright Email: [email protected], permission’. In the USA, users may clear permissions and make or&via www.sealingtechnology.info. payments through Clearance Center, Inc., is 222 Subscriptions run forthe 12 Copyright months, from the date payment Rosewood Drive, Danvers, MA 01923, USA; phone: +1 978 750 8400, received.
fax: +1 978 750 4744, and in the UK through the Copyright Licensing Agency Rapid Clearance Service (CLARCS), 90 Tottenham Court Road, Permissions may be sought directly from Elsevier Global Rights London W1P 0LP, UK; phone: +44 (0)20 7631 5555; fax: +44 (0)20 Department, PO Box 800, Oxford OX5 1DX, UK; phone: +44 1865 7631 5500. Other countries may have a local reprographic rights 843830, fax: +44 1865 853333, email: [email protected]. You agency for payments. may also contact Global Rights directly through Elsevier’s home page (www.elsevier.com), selecting first ‘Support & contact’, then ‘Copyright Derivative Works & permission’. In the USA, users may clear permissions and make Subscribers may reproduce tables of contents or prepare lists of payments through the Copyright Clearance Center, Inc., 222 articles including abstracts for internal circulation within their instituRosewood Drive, Danvers, MA 01923, USA; phone: +1 978 750 8400, tions. Permission of the Publisher is required for resale or distribution fax: +1 978 750 4744, and in the UK through the Copyright Licensing outside the institution. Permission of the Publisher is required for Agency Rapid Clearance Service (CLARCS), 90 Tottenham Court Road, all other derivative works, including compilations and translations. London W1P 0LP, UK; phone: +44 (0)20 7631 5555; fax: +44 (0)20 7631 5500. Other countries may have a local reprographic rights Electronic Storage or Usage agency for payments. Permission of the Publisher is required to store or use electronically Derivative Works any material contained in this journal, including any article or part of Subscribers may reproduce tables of contents or prepare lists of artian article. Except as outlined above, no part of this publication may cles including abstracts for internal circulation within their institutions. be reproduced, stored in a retrieval system or transmitted in any form Permission of the Publisher is required for resale or distribution outside or by any means, electronic, mechanical, photocopying, recording or the institution. Permission of the Publisher is required for all other otherwise, without prior written permission of the Publisher. Address derivative works, including compilations and translations. permissions requests to: Elsevier Science Global Rights Department, Electronic Storage or Usage at the mail, fax and email addresses noted above. Permission of the Publisher is required to store or use electronically any material contained in this journal, including any article or part of Notice an article. Except as outlined above, no part of this publication may No responsibility is assumed by the Publisher for any injury and/ be reproduced, stored in a retrieval system or transmitted in any form or damage to persons or property as a matter of products liability, or by any means, electronic, mechanical, photocopying, recording or negligence or otherwise, or from any use or operation of any methotherwise, without prior written permission of the Publisher. Address ods, products, instructions or ideas contained in the material herein. permissions requests to: Elsevier Science Global Rights Department, at Because of rapid advances in the medical sciences, in particular, the mail, fax and email addresses noted above. independent verification of diagnoses and drug dosages should be Notice made.Although all advertising material is expected to conform to No responsibility is assumed by the Publisher for any injury and/ ethical (medical) standards, inclusion in this publication does not or damage to persons or property as a matter of products liability, constitute a guarantee or endorsement of the quality or value of negligence or otherwise, or from any use or operation of any methsuch product or of the claims made of it by its manufacturer. ods, products, instructions or ideas contained in the material herein. Because of rapid advances in the medical sciences, in particular, independent verification of diagnoses12980 and drug dosages should be made. Digitally Although all advertising material isProduced expected to by conform to ethical (medical) standards, inclusion in this publication Mayfield Press (Oxford)does Ltdnot constitute a guarantee or endorsement of the quality or value of such product or of the claims(The made of it by content of its thismanufacturer. newsletter is compiled from a variety of sources, including press releases.)
02129 Digitally Produced by Mayfield Press (Oxford) Ltd
2
Sealing Technology
Collaboration improves reliability of high-voltage ESPs
I
n the USA, Greene, Tweed & Co, a global manufacturer of high-performance seals and engineered components, has been working with AccessESP Llc to improve the reliability of high-voltage electrical submersible pumps (ESPs). AccessESP, a provider of ESP conveyance systems for the global oil industry, has developed a through-tubing retrieval system that provides quick and easy ESP installation and retrieval using slickline, wireline or coiled tubing. Greene, Tweed developed a customised connector that greatly improves the performance of AccessESP’s rigless ESP system. The firm says that it combines its proprietary materials portfolio with engineering and design expertise to meet AccessESP’s demanding reliability management initiative and electrical requirements. The connector is based on Greene, Tweed’ Seal-Connect® – combining its high-performance materials, including Arlon® 1000, Arlon 3000 XT and Chemraz® 629. David Malone, CEO, AccessESP, commented: ‘We continue to be pleased with Greene, Tweed’s proposed Seal-Connect solution for the connector assembly. This connector provided us with the required performance in order to guarantee a long and safe life with extremely high levels of reliability.’ Henry Stueber, Vice President and COO, Greene, Tweed, added: ‘Greene, Tweed and AccessESP’s collaboration addressed one of the biggest challenges facing our customers – optimising system reliability to maximise uptime.’ For further information, visit: Web: www.gtweed.com
of using different ones typically made from EPDM, VMQ or FKM, claims Dichtomatik. Selection is based on factors such as the working environment during cleaning-in-place and sterilisation-in-place, or steam sterilisation processes, and the type of media coming into contact with the seal, such as fats, flavours and acid concentrations. Fluoroprene XP displays good media resistance (in both water-based and fatty media) in all critical areas of the food and beverage industry, as well as broad sections of the pharmaceuticals and chemicals sectors. The material’s stability under a wide range of temperatures, from -15°C to 200°C (5°F to 392°F), is also impressive, says the company. Beyond the material’s versatility, another of Fluoroprene XP’s advantages is its low capacity to absorb flavours and the corresponding prevention of flow back into the product media. This ensures that the material is perfect for applications in breweries that process and bottle a variety of differently flavoured beverages on the same production line. Fluoroprene XP’s unique media resistance ensures complete process protection whilst maintaining high economic efficiency. Storage tests performed using 75 Fluoroprene XP 40 over 168 hours, show that it is extraordinarily well suited to applications involving concentrated acids and bases, high temperatures and water and steam. The Fluoroprene XP product family also includes 70 Fluoroprene XP 41 and 85 Fluoroprene XP 43 that have been optimised for injection-moulding processes, and 75 Fluoroprene XP 45, which is ideal for the production of metal composite parts, especially hygienic Usit rings. All of the materials meet approvals and standards relevant to the food, beverage and pharmaceuticals industries, such as FDA, EC Regulation 1935/2004, 3-A Sanitary Standards and USP Class VI.
& Web: www.accessesp.com For further information, visit: Web: www.fst.com/markets/process-industry/food-andbeverage & Web: http://uk.dichtomatik.com
All round sealing material Fluoroprene XP now available in the UK Runner blade trunnion split seal luoroprene® XP – described as a universal, all round, sealing material that F is specifically designed for process indus- increases Kaplan try applications – is now available in Turbine reliability the UK from Dichtomatik UK Ltd, which supplies in the UK Freudenberg Sealing Technologies’ (FST) products that are targeted at the food and beverage sector. With Fluoroprene XP, process industry applications only require one sealing material instead
U
S fluid sealing company A.W. Chesterton Co recently introduced its Kaplan Turbine runner blade trunnion split seal, which is designed to help hydropower plants reduce costly turbine
April 2018
NEWS/IN BRIEF downtime and limit the release of operating fluid into the environment. According to Chesterton, this high-performance lip seal is targeted at heavy-duty, dynamic rotary and oscillating seal applications in the hydropower industry. It is specifically designed for Kaplan (or “propeller type”) turbine runner blade trunnions, and is just one of an array of Kaplan Turbine products available from the firm. The seal’s split design reduces downtime by simplifying installation. This is because it is not necessary to remove the blade during installation and there is no need for complex welding, gluing or post processing of the split joint. In addition, only two seals need to be installed in back-to-back configuration rather than a full stacked set. This configuration also keeps the hydraulic media and lubricant in the turbine hub, and protects the hub against ingress of water, solid particles and sediments. The seal has a positive, flared dynamic lip design that resists the rotary motion which could pull the split apart, and uses load pressure to join the cut ends. Chesterton says that during blade positioning, the seal maintains load pressure and also allows for rotary shaft movement with minimal frictional drag. A typical reliability issue with an older Kaplan Turbine is blade droop caused by worn trunnion bushings. The Chesterton trunnion seal design compensates by providing reliable sealing, despite any droop. This seal is made from Chesterton’s AWC800 (95 Shore A) high-performance thermoset polymer (EU) material, which offers excellent abrasion resistance and improved durability, and has a proven record of withstanding severe operating conditions. The polymer provides a built-in molybdenum disulfide lubricant to minimise frictional drag. Its superior “memory” enables the seal to automatically adjust and compensate for radial cross-sectional variances commonly associated with blade droop, says the firm. The geometry and dimensions of the seal are made-to-order according to the actual hardware arrangement and dimensions. For further information, visit: Web: www.chesterton.com/en-us/Pages/ KaplanSolutions.aspx
oped formed on-place closed-cell (FIP CC) technology which, it says, combines high water-resistance associated with silicone with the attractive material costs of polyurethane (PU). The Fermapor® CC foam sealant system is based on polyurethane and is intended for use in applications requiring high resistance to water. It closes the gap between high-priced, predominantly closed-cell materials such as silicone foam, and lower-priced mixed-cell PU foam. It also offers current users of one-component sealing technology a less expensive alternative. The room-temperature cross-linking twocomponent system forms a predominantly closed-cell PU soft foam seal with the FIP CC foaming process. The foam structure comprises fine cells that are dense and particularly uniform. Because of this closed-cell structure, the Fermapor CC foam seal has a high resistance to water absorption, and is 90% less air-permeable than mixed-cell PU foam. Even if the surface is damaged, water intake is only slightly affected, as proven by both practical and laboratory tests. Fermapor CC PU foam fulfils the REACH/ EC regulation 1907/2006 and RoHS. As a rule, it can be used to seal components with an operating temperature of between -40°C and 80°C (-40°F and 176°F) – even up to 160°C (320°F) for short periods. Sonderhoff says that it has patented a new sealing technology with the DM 402 CC mixing and dosing system for metering Fermapor CC. The application process itself follows the formed in-place foam gasket (FIPFG) process, which is a production standard in many industries. What is new is the sealing foam’s ability to reach its full size shortly after being applied to the component. This means that process-oriented quality control can determine, immediately after the sealing application, whether or not the seal has been applied to the desired height over the entire component contour. For further information, visit: Web: www.sonderhoff.com/en/solutions/materialsystems/fermaporr-cc
Company News
Sealant system targets applications requiring high resistance to water
Bal Seal Engineering achieves AS9100D certification
T
B
he Sonderhoff Group, part of Henkel AG & Co KGaA, has devel-
April 2018
al Seal Engineering Inc, a US company that provides custom-engineered
IN BRIEF Federal-Mogul supplies sealing technologies for Wards 10 Best Engines Federal-Mogul Powertrain is supplying engine technologies for all 10 of Wards 10 Best Engines for 2018 model year vehicles. Since the inception of the Wards 10 Best Engines competition – run by Ward’s AutoWorld magazine – 24 years ago, the company has designed and manufactured technologies for many of the engines recognised each year as the “10 best”. It provides components such as pistons, piston rings, cylinder liners, engine valves, gaskets, ignition products, spark plugs and systems protection products. Award-winning engines featuring the firm’s technologies include the 2.0 L turbocharged DOHC four-cylinder engine for the Jaguar XF, the 130-kW fuel cell/electric propulsion system used in the Honda Clarity and the Ford F-150’s 2.7 L twin turbo DOHC V-6 power plant. GEA’s CEO is not seeking to renew his contract The long-standing CEO of GEA Group Aktiengesellschaft, Jürg Oleas, has informed Dr Helmut Perlet, the chairman of the firm’s supervisory board, that he is not seeking to extend his term of office beyond 31 December 2019. Dr Perlet commented: ‘I deeply regret Jürg Oleas’ decision, but at the same time I respect this step. The suggested timeframe guarantees that the ongoing implementation of the company’s strategic objectives will continue to be advanced during the current fiscal year whilst at the same time Jürg Oleas will be able to ensure an orderly transition.’ Werner Mueller elected as honorary chairman of Evonik’s supervisory board The supervisory board of speciality chemicals company Evonik has unanimously elected Dr Werner Mueller as its honorary chairman. Mueller recently announced that he would step down from his position as chairman of the supervisory board at the end of the annual shareholders’ meeting on 23 May. Abulaban joins SPX Flow’s board of directors US-based SPX Flow Inc, which engineers, designs, manufactures, and markets products used to process, blend, filter, dry, meter and transport fluids has appointed Majdi Abulaban as an additional independent member of its board of directors. ‘Majdi brings significant operational, commercial and transactional experience to the board,’ commented Robert Hull, Chairman of the Board.
Sealing Technology
3
Editorial EditorialOffice: Office: Elsevier ElsevierLtd Ltd TheThe Boulevard, Boulevard,Langford Langford Lane Lane Kidlington, Kidlington,Oxford Oxford OX5 OX5 1GB, 1GB,UK UK Fax:Tel: +44 +44 (0)1865 1865 843239 843973 Web: Web: www.sealingtechnology.info www.sealingtechnology.info Publisher: Greg Valero Executive Publisher: Laney Priestley E-mail: [email protected] Editor: Simon Atkinson Editor:+44 Simon Atkinson Tel/Fax: (0) 1904 655944 Tel: +44 (0) 1904 655944 E-mail: [email protected] E-mail: [email protected] Production Support Lin Lucas Technical Editor:Manager: Bob Flitney E-mail: Tel: [email protected] (0)1799 501659 E-mail: [email protected] Editorial advisory board: Production Support Lin Lucas Didier Fribourg (F) •Manager: Amrat Parmar (UK) E-mail: [email protected] Richard F Salant (USA) Wolfgang Schöpplein (D) • Shuzo Seya (J) Editorial(USA) advisory board: Scott Svendsen • Dr Brian S Ellis (UK) Yves Birembaut • Cyril X Latty(F) (F) Bob Flitney (UK)(F)Noël Brunetière Amrat Parmar (UK) • Richard F Salant (USA) Subscription Information Wolfgang Schöpplein (D) • Shuzo Seya (J) An annual subscription Sealing Technology Scottto Svendsen (USA) includes 12 issues and online access for up to 5 users. Subscriptions Information run for 12 months, from the date Subscription is received. to Sealing Technology includes 12 Anpayment annual subscription issues and online access for up to 5 users. More information: www.elsevier.com/journals/instituPrices: tional/sealing-technology/1350-4789 E1215 for all European countries & Iran US$1362 for all countries except Europe and Japan Permissions be sought directly from Elsevier Global Rights ¥161 400 formay Japan Department, PO Box Oxford 2018) OX5 1DX, UK; phone: +44 1865 (Prices valid until 31 800, July-April fax: +44 853333,toemail: [email protected]. You To843830, subscribe send1865 payment the address above. may also(0)1865 contact Global Rights directly through Elsevier’s Tel: +44 843687/Fax: +44 (0)1865 834971 home page (www.elsevier.com), selecting first ‘Support & contact’, then ‘Copyright Email: [email protected], permission’. In the USA, users may clear permissions and make or&via www.sealingtechnology.info. payments through Clearance Center, Inc., is 222 Subscriptions run forthe 12 Copyright months, from the date payment Rosewood Drive, Danvers, MA 01923, USA; phone: +1 978 750 8400, received.
fax: +1 978 750 4744, and in the UK through the Copyright Licensing Agency Rapid Clearance Service (CLARCS), 90 Tottenham Court Road, Permissions may be sought directly from Elsevier Global Rights London W1P 0LP, UK; phone: +44 (0)20 7631 5555; fax: +44 (0)20 Department, PO Box 800, Oxford OX5 1DX, UK; phone: +44 1865 7631 5500. Other countries may have a local reprographic rights 843830, fax: +44 1865 853333, email: [email protected]. You agency for payments. may also contact Global Rights directly through Elsevier’s home page (www.elsevier.com), selecting first ‘Support & contact’, then ‘Copyright Derivative Works & permission’. In the USA, users may clear permissions and make Subscribers may reproduce tables of contents or prepare lists of payments through the Copyright Clearance Center, Inc., 222 articles including abstracts for internal circulation within their instituRosewood Drive, Danvers, MA 01923, USA; phone: +1 978 750 8400, tions. Permission of the Publisher is required for resale or distribution fax: +1 978 750 4744, and in the UK through the Copyright Licensing outside the institution. Permission of the Publisher is required for Agency Rapid Clearance Service (CLARCS), 90 Tottenham Court Road, all other derivative works, including compilations and translations. London W1P 0LP, UK; phone: +44 (0)20 7631 5555; fax: +44 (0)20 7631 5500. Other countries may have a local reprographic rights Electronic Storage or Usage agency for payments. Permission of the Publisher is required to store or use electronically Derivative Works any material contained in this journal, including any article or part of Subscribers may reproduce tables of contents or prepare lists of artian article. Except as outlined above, no part of this publication may cles including abstracts for internal circulation within their institutions. be reproduced, stored in a retrieval system or transmitted in any form Permission of the Publisher is required for resale or distribution outside or by any means, electronic, mechanical, photocopying, recording or the institution. Permission of the Publisher is required for all other otherwise, without prior written permission of the Publisher. Address derivative works, including compilations and translations. permissions requests to: Elsevier Science Global Rights Department, Electronic Storage or Usage at the mail, fax and email addresses noted above. Permission of the Publisher is required to store or use electronically any material contained in this journal, including any article or part of Notice an article. Except as outlined above, no part of this publication may No responsibility is assumed by the Publisher for any injury and/ be reproduced, stored in a retrieval system or transmitted in any form or damage to persons or property as a matter of products liability, or by any means, electronic, mechanical, photocopying, recording or negligence or otherwise, or from any use or operation of any methotherwise, without prior written permission of the Publisher. Address ods, products, instructions or ideas contained in the material herein. permissions requests to: Elsevier Science Global Rights Department, at Because of rapid advances in the medical sciences, in particular, the mail, fax and email addresses noted above. independent verification of diagnoses and drug dosages should be Notice made.Although all advertising material is expected to conform to No responsibility is assumed by the Publisher for any injury and/ ethical (medical) standards, inclusion in this publication does not or damage to persons or property as a matter of products liability, constitute a guarantee or endorsement of the quality or value of negligence or otherwise, or from any use or operation of any methsuch product or of the claims made of it by its manufacturer. ods, products, instructions or ideas contained in the material herein. Because of rapid advances in the medical sciences, in particular, independent verification of diagnoses12980 and drug dosages should be made. Digitally Although all advertising material isProduced expected to by conform to ethical (medical) standards, inclusion in this publication Mayfield Press (Oxford)does Ltdnot constitute a guarantee or endorsement of the quality or value of such product or of the claims(The made of it by content of its thismanufacturer. newsletter is compiled from a variety of sources, including press releases.)
02129 Digitally Produced by Mayfield Press (Oxford) Ltd
2
Sealing Technology
Collaboration improves reliability of high-voltage ESPs
I
n the USA, Greene, Tweed & Co, a global manufacturer of high-performance seals and engineered components, has been working with AccessESP Llc to improve the reliability of high-voltage electrical submersible pumps (ESPs). AccessESP, a provider of ESP conveyance systems for the global oil industry, has developed a through-tubing retrieval system that provides quick and easy ESP installation and retrieval using slickline, wireline or coiled tubing. Greene, Tweed developed a customised connector that greatly improves the performance of AccessESP’s rigless ESP system. The firm says that it combines its proprietary materials portfolio with engineering and design expertise to meet AccessESP’s demanding reliability management initiative and electrical requirements. The connector is based on Greene, Tweed’ Seal-Connect® – combining its high-performance materials, including Arlon® 1000, Arlon 3000 XT and Chemraz® 629. David Malone, CEO, AccessESP, commented: ‘We continue to be pleased with Greene, Tweed’s proposed Seal-Connect solution for the connector assembly. This connector provided us with the required performance in order to guarantee a long and safe life with extremely high levels of reliability.’ Henry Stueber, Vice President and COO, Greene, Tweed, added: ‘Greene, Tweed and AccessESP’s collaboration addressed one of the biggest challenges facing our customers – optimising system reliability to maximise uptime.’ For further information, visit: Web: www.gtweed.com
of using different ones typically made from EPDM, VMQ or FKM, claims Dichtomatik. Selection is based on factors such as the working environment during cleaning-in-place and sterilisation-in-place, or steam sterilisation processes, and the type of media coming into contact with the seal, such as fats, flavours and acid concentrations. Fluoroprene XP displays good media resistance (in both water-based and fatty media) in all critical areas of the food and beverage industry, as well as broad sections of the pharmaceuticals and chemicals sectors. The material’s stability under a wide range of temperatures, from -15°C to 200°C (5°F to 392°F), is also impressive, says the company. Beyond the material’s versatility, another of Fluoroprene XP’s advantages is its low capacity to absorb flavours and the corresponding prevention of flow back into the product media. This ensures that the material is perfect for applications in breweries that process and bottle a variety of differently flavoured beverages on the same production line. Fluoroprene XP’s unique media resistance ensures complete process protection whilst maintaining high economic efficiency. Storage tests performed using 75 Fluoroprene XP 40 over 168 hours, show that it is extraordinarily well suited to applications involving concentrated acids and bases, high temperatures and water and steam. The Fluoroprene XP product family also includes 70 Fluoroprene XP 41 and 85 Fluoroprene XP 43 that have been optimised for injection-moulding processes, and 75 Fluoroprene XP 45, which is ideal for the production of metal composite parts, especially hygienic Usit rings. All of the materials meet approvals and standards relevant to the food, beverage and pharmaceuticals industries, such as FDA, EC Regulation 1935/2004, 3-A Sanitary Standards and USP Class VI.
& Web: www.accessesp.com For further information, visit: Web: www.fst.com/markets/process-industry/food-andbeverage & Web: http://uk.dichtomatik.com
All round sealing material Fluoroprene XP now available in the UK Runner blade trunnion split seal luoroprene® XP – described as a universal, all round, sealing material that F is specifically designed for process indus- increases Kaplan try applications – is now available in Turbine reliability the UK from Dichtomatik UK Ltd, which supplies in the UK Freudenberg Sealing Technologies’ (FST) products that are targeted at the food and beverage sector. With Fluoroprene XP, process industry applications only require one sealing material instead
U
S fluid sealing company A.W. Chesterton Co recently introduced its Kaplan Turbine runner blade trunnion split seal, which is designed to help hydropower plants reduce costly turbine
April 2018
NEWS/IN BRIEF downtime and limit the release of operating fluid into the environment. According to Chesterton, this high-performance lip seal is targeted at heavy-duty, dynamic rotary and oscillating seal applications in the hydropower industry. It is specifically designed for Kaplan (or “propeller type”) turbine runner blade trunnions, and is just one of an array of Kaplan Turbine products available from the firm. The seal’s split design reduces downtime by simplifying installation. This is because it is not necessary to remove the blade during installation and there is no need for complex welding, gluing or post processing of the split joint. In addition, only two seals need to be installed in back-to-back configuration rather than a full stacked set. This configuration also keeps the hydraulic media and lubricant in the turbine hub, and protects the hub against ingress of water, solid particles and sediments. The seal has a positive, flared dynamic lip design that resists the rotary motion which could pull the split apart, and uses load pressure to join the cut ends. Chesterton says that during blade positioning, the seal maintains load pressure and also allows for rotary shaft movement with minimal frictional drag. A typical reliability issue with an older Kaplan Turbine is blade droop caused by worn trunnion bushings. The Chesterton trunnion seal design compensates by providing reliable sealing, despite any droop. This seal is made from Chesterton’s AWC800 (95 Shore A) high-performance thermoset polymer (EU) material, which offers excellent abrasion resistance and improved durability, and has a proven record of withstanding severe operating conditions. The polymer provides a built-in molybdenum disulfide lubricant to minimise frictional drag. Its superior “memory” enables the seal to automatically adjust and compensate for radial cross-sectional variances commonly associated with blade droop, says the firm. The geometry and dimensions of the seal are made-to-order according to the actual hardware arrangement and dimensions. For further information, visit: Web: www.chesterton.com/en-us/Pages/ KaplanSolutions.aspx
oped formed on-place closed-cell (FIP CC) technology which, it says, combines high water-resistance associated with silicone with the attractive material costs of polyurethane (PU). The Fermapor® CC foam sealant system is based on polyurethane and is intended for use in applications requiring high resistance to water. It closes the gap between high-priced, predominantly closed-cell materials such as silicone foam, and lower-priced mixed-cell PU foam. It also offers current users of one-component sealing technology a less expensive alternative. The room-temperature cross-linking twocomponent system forms a predominantly closed-cell PU soft foam seal with the FIP CC foaming process. The foam structure comprises fine cells that are dense and particularly uniform. Because of this closed-cell structure, the Fermapor CC foam seal has a high resistance to water absorption, and is 90% less air-permeable than mixed-cell PU foam. Even if the surface is damaged, water intake is only slightly affected, as proven by both practical and laboratory tests. Fermapor CC PU foam fulfils the REACH/ EC regulation 1907/2006 and RoHS. As a rule, it can be used to seal components with an operating temperature of between -40°C and 80°C (-40°F and 176°F) – even up to 160°C (320°F) for short periods. Sonderhoff says that it has patented a new sealing technology with the DM 402 CC mixing and dosing system for metering Fermapor CC. The application process itself follows the formed in-place foam gasket (FIPFG) process, which is a production standard in many industries. What is new is the sealing foam’s ability to reach its full size shortly after being applied to the component. This means that process-oriented quality control can determine, immediately after the sealing application, whether or not the seal has been applied to the desired height over the entire component contour. For further information, visit: Web: www.sonderhoff.com/en/solutions/materialsystems/fermaporr-cc
Company News
Sealant system targets applications requiring high resistance to water
Bal Seal Engineering achieves AS9100D certification
T
B
he Sonderhoff Group, part of Henkel AG & Co KGaA, has devel-
April 2018
al Seal Engineering Inc, a US company that provides custom-engineered
IN BRIEF Federal-Mogul supplies sealing technologies for Wards 10 Best Engines Federal-Mogul Powertrain is supplying engine technologies for all 10 of Wards 10 Best Engines for 2018 model year vehicles. Since the inception of the Wards 10 Best Engines competition – run by Ward’s AutoWorld magazine – 24 years ago, the company has designed and manufactured technologies for many of the engines recognised each year as the “10 best”. It provides components such as pistons, piston rings, cylinder liners, engine valves, gaskets, ignition products, spark plugs and systems protection products. Award-winning engines featuring the firm’s technologies include the 2.0 L turbocharged DOHC four-cylinder engine for the Jaguar XF, the 130-kW fuel cell/electric propulsion system used in the Honda Clarity and the Ford F-150’s 2.7 L twin turbo DOHC V-6 power plant. GEA’s CEO is not seeking to renew his contract The long-standing CEO of GEA Group Aktiengesellschaft, Jürg Oleas, has informed Dr Helmut Perlet, the chairman of the firm’s supervisory board, that he is not seeking to extend his term of office beyond 31 December 2019. Dr Perlet commented: ‘I deeply regret Jürg Oleas’ decision, but at the same time I respect this step. The suggested timeframe guarantees that the ongoing implementation of the company’s strategic objectives will continue to be advanced during the current fiscal year whilst at the same time Jürg Oleas will be able to ensure an orderly transition.’ Werner Mueller elected as honorary chairman of Evonik’s supervisory board The supervisory board of speciality chemicals company Evonik has unanimously elected Dr Werner Mueller as its honorary chairman. Mueller recently announced that he would step down from his position as chairman of the supervisory board at the end of the annual shareholders’ meeting on 23 May. Abulaban joins SPX Flow’s board of directors US-based SPX Flow Inc, which engineers, designs, manufactures, and markets products used to process, blend, filter, dry, meter and transport fluids has appointed Majdi Abulaban as an additional independent member of its board of directors. ‘Majdi brings significant operational, commercial and transactional experience to the board,’ commented Robert Hull, Chairman of the Board.
Sealing Technology
3