- Email: [email protected]
High-temperature elastomers seal oil and gas
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NEWS Editorial office: Elsevier Advanced Technology PO Box 150 Kidlington Oxford OX5 1AS United Kingdom Tel:+44 (0)1865 843676 Fax: +44 (0)1865 843971 E-mail: [email protected] Editor: Helen Long Contributing Editor: Simon Atkinson Tel: +44 (0)1608 641631 E-mail: [email protected] Production Coordinator: Tracey Scarlett Editorial advisory board: William V Adams (USA), Yves Birembaut (F), Cyril X Latty (F), Amrat Parmar (UK), John Plumridge (UK), Richard F Salant (USA), Wolfgang Schöpplein (D), Neil M Wallace (UK) Permissions may be sought directly from Elsevier Science Rights & Permissions Department, PO Box 800, Oxford OX5 1DX, UK; tel: +44 (0)1865 843830, fax: +44 (0)1865 853333, e-mail: [email protected]. You may also contact Rights & Permissions directly through Elsevier’s home page (http://www.elsevier.nl), selecting first ‘Customer Support’, then ‘General Information’, then ‘Permissions Query Form’. In the USA, users may clear permissions and make payments through the Copyright Clearance Center, Inc, 222 Rosewood Drive, Danvers, MA 01923, USA; tel: 978 7508400, fax: +1 978 7504744, and in the UK through the Copyright Licensing Agency Rapid Clearance Service (CLARCS), 90 Tottenham Court Road, London W1P 0LP, UK; tel: +44 (0) 207 436 5931; fax: +44 (0)207 631 5500. Other countries may have a local reprographic rights agency for payments. Derivative Works Subscribers may reproduce tables of contents or prepare lists of articles including abstracts for internal circulation within their institutions. Permission of the publisher is required for resale or distribution outside the institution. Permission of the publisher is required for all other derivative works, including compilations and translations. Electronic Storage or Usage Permission of the publisher is required to store or use electronically any material contained in this journal, including any article or part of an article. Contact the publisher at the address indicated. Except as outlined above, no part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior written permission of the publisher. Address permissions requests to: Elsevier Science Rights & Permissions Department, at the mail, fax and e-mail addresses noted above. Notice No responsibility is assumed by the Publisher for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products, instructions or ideas contained in the material herein. Because of rapid advances in the medical sciences, in particular, independent verification of diagnoses and drug dosages should be made. Although all advertising material is expected to conform to ethical (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.
02129 Printed by Mayfield Press (Oxford) Ltd,
2
Fluiten unveils new C2K cartridge seal Fluiten Srl has launched a new cartridge seal for generic applications that it says is versatile, operationally reliable, and simple in its construction. The C2K is aimed at all middle– low duty applications, with a maximum pressure of 12 bar, maximum speed of 12 m/s, and operating temperatures ranging from –50°C to +200°C. The company says this will allow a useful reduction of spares inventory. Comprising only four essential parts – sleeve, spring (acting also as a driving system), rotating ring and stationary ring – the C2K’s simplicity is the key to its reliability, says Fluiten. For use with moderately dirty liquids, the seal has a wave spring that accepts some solid particles in liquid suspension and relatively viscous fluids. Resistance to corrosive chemicals is provided by the duplex stainless steel spring, PTFE or other perfluoroelastomer gaskets and an AISI 316 body. For application on pumps or agitators subject to strong vibrations, cavitations and run-outs, Fluiten has released another version of the C2K seal, the C3K. This model incorporates a resistance-enhanced sleeve, which increases its versatility for installation on many different plants. For more information, contact: Fluiten Srl, Via L. Da Vinci, 14, 20016 Pero, Milan, Italy. Tel: +39 2 3394031, Fax: +39 2 3538641, Email: [email protected].
Economos enhances Ecopur seals Austrian seal manufacturer Economos has launched enhanced sealing materials that are based on its Ecopur product range. The polyurethane elastomer materials designated X-Ecopur, XH-Ecopur and XS-Ecopur, possess superior operating characteristics compared with polytetrafluo-
roethylene (PTFE) seals, claims the company. A variation of Economos’ Ecopur material, X-Ecopur is designed to be used predominantly in injection moulding units, machine tools, mobile hydraulics, and in metering and mixing machinery. It also has major advantages over PTFE seals in other applications, such as highpressure sealing. An additional advantage, says the company, is that because of XEcopur’s thermoplastic structure, it is able to make either a single seal in virtually any size, seals in short, just-in-time production runs, or in cost-effective large runs using injection moulding. A case study featuring hydroloysis-resistant H-Ecopur seals can be found on page 9 of this issue. Contact: Economos UK Ltd, Seal Jet House, 83 Buckingham Avenue, Slough Trading Estate, Slough Berkshire SL1 4PN, UK. Tel: +44 1753 696565, Fax: +44 1753 696181, Email: [email protected].
High-temperature elastomers seal oil and gas Precision Polymer Engineering of Blackburn, UK, has developed four new Aflas elastomers for high-temperature sealing applications in the extreme environments that are encountered in oil and gas production and processing. The new grades, which offer 27% increased flex life, typical of NBR elastomers, are designated A95H (explosive decompression), A85H, A75H and A70H. The elastomers increase Aflas’ seal temperature resistance from 260°C to a peak of 290°C, while still retaining the steam and chemical/sour gas resistance that is characteristic of this product range, says the company. During recent trials, the Aflas A95H explosive decompression grade withstood a two-second pressure drop from around 5.2 MPa (750 lb/in2) to normal atmospheric pressure. Furthermore, when subjected to long-term heat ageing at 175°C, the improved Aflas material retains at least 30% higher tensile strength and elongation than standard Aflas grades, claims Precision Polymer Engineering.
The elastomers can be combined with other materials to increase the number of applications for which they can be used. These include metal substrates or reinforcing fabrics for high-pressure applications. Used as a composite seal, Aflas offers a cost-effective and long-lasting alternative to other more expensive elastomers, says the company. Contact: Precision Polymer Engineering, Clarendon Road, Blackburn BB1 9SS, UK. Tel: +44 1254 295400, Fax: +44 1254 680182.
Simrit extends its product range Simrit, the industrial products division of Freudenberg-NOK, has launched three new products that include additions to its Simriz range of perfluoroelastomer compounds and a new line of coloured O-rings. The Simriz products provide superior chemical resistance, strong physical properties (including compression set resistance), high or low temperature capabilities, and resistance to steam and organic amines. These products are used as secondary seals in mechanical seals, and also in valves, sensors and fuel systems. Simrit has also announced that it has signed an exclusive agreement with DuPont Dow Elastomers to provide a Genuine Viton programme for fluorocarbon O-rings that are produced at its facility based in Santa Ana, California, USA. According to the company, these O-rings offer superior chemical resistance and low temperature performance for the most demanding applications. The Simrit Division is also developing its own line of coloured Orings. The identification of individual compounds by using different colours has been a popular idea for many years, but the introduction of colour has often adversely affected the material. Also, these O-rings provide greater flexibility, reduce friction and, by using Simrit’s proprietary coating process, eliminate flaking that often causes a blockage in filter systems. These products are being targeted at the aerospace, chemical processing, food and pharmaceutical, oil
Sealing Technology April 2003
04/04/2003
15:00
Page 2
NEWS Editorial office: Elsevier Advanced Technology PO Box 150 Kidlington Oxford OX5 1AS United Kingdom Tel:+44 (0)1865 843676 Fax: +44 (0)1865 843971 E-mail: [email protected] Editor: Helen Long Contributing Editor: Simon Atkinson Tel: +44 (0)1608 641631 E-mail: [email protected] Production Coordinator: Tracey Scarlett Editorial advisory board: William V Adams (USA), Yves Birembaut (F), Cyril X Latty (F), Amrat Parmar (UK), John Plumridge (UK), Richard F Salant (USA), Wolfgang Schöpplein (D), Neil M Wallace (UK) Permissions may be sought directly from Elsevier Science Rights & Permissions Department, PO Box 800, Oxford OX5 1DX, UK; tel: +44 (0)1865 843830, fax: +44 (0)1865 853333, e-mail: [email protected]. You may also contact Rights & Permissions directly through Elsevier’s home page (http://www.elsevier.nl), selecting first ‘Customer Support’, then ‘General Information’, then ‘Permissions Query Form’. In the USA, users may clear permissions and make payments through the Copyright Clearance Center, Inc, 222 Rosewood Drive, Danvers, MA 01923, USA; tel: 978 7508400, fax: +1 978 7504744, and in the UK through the Copyright Licensing Agency Rapid Clearance Service (CLARCS), 90 Tottenham Court Road, London W1P 0LP, UK; tel: +44 (0) 207 436 5931; fax: +44 (0)207 631 5500. Other countries may have a local reprographic rights agency for payments. Derivative Works Subscribers may reproduce tables of contents or prepare lists of articles including abstracts for internal circulation within their institutions. Permission of the publisher is required for resale or distribution outside the institution. Permission of the publisher is required for all other derivative works, including compilations and translations. Electronic Storage or Usage Permission of the publisher is required to store or use electronically any material contained in this journal, including any article or part of an article. Contact the publisher at the address indicated. Except as outlined above, no part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior written permission of the publisher. Address permissions requests to: Elsevier Science Rights & Permissions Department, at the mail, fax and e-mail addresses noted above. Notice No responsibility is assumed by the Publisher for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products, instructions or ideas contained in the material herein. Because of rapid advances in the medical sciences, in particular, independent verification of diagnoses and drug dosages should be made. Although all advertising material is expected to conform to ethical (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.
02129 Printed by Mayfield Press (Oxford) Ltd,
2
Fluiten unveils new C2K cartridge seal Fluiten Srl has launched a new cartridge seal for generic applications that it says is versatile, operationally reliable, and simple in its construction. The C2K is aimed at all middle– low duty applications, with a maximum pressure of 12 bar, maximum speed of 12 m/s, and operating temperatures ranging from –50°C to +200°C. The company says this will allow a useful reduction of spares inventory. Comprising only four essential parts – sleeve, spring (acting also as a driving system), rotating ring and stationary ring – the C2K’s simplicity is the key to its reliability, says Fluiten. For use with moderately dirty liquids, the seal has a wave spring that accepts some solid particles in liquid suspension and relatively viscous fluids. Resistance to corrosive chemicals is provided by the duplex stainless steel spring, PTFE or other perfluoroelastomer gaskets and an AISI 316 body. For application on pumps or agitators subject to strong vibrations, cavitations and run-outs, Fluiten has released another version of the C2K seal, the C3K. This model incorporates a resistance-enhanced sleeve, which increases its versatility for installation on many different plants. For more information, contact: Fluiten Srl, Via L. Da Vinci, 14, 20016 Pero, Milan, Italy. Tel: +39 2 3394031, Fax: +39 2 3538641, Email: [email protected].
Economos enhances Ecopur seals Austrian seal manufacturer Economos has launched enhanced sealing materials that are based on its Ecopur product range. The polyurethane elastomer materials designated X-Ecopur, XH-Ecopur and XS-Ecopur, possess superior operating characteristics compared with polytetrafluo-
roethylene (PTFE) seals, claims the company. A variation of Economos’ Ecopur material, X-Ecopur is designed to be used predominantly in injection moulding units, machine tools, mobile hydraulics, and in metering and mixing machinery. It also has major advantages over PTFE seals in other applications, such as highpressure sealing. An additional advantage, says the company, is that because of XEcopur’s thermoplastic structure, it is able to make either a single seal in virtually any size, seals in short, just-in-time production runs, or in cost-effective large runs using injection moulding. A case study featuring hydroloysis-resistant H-Ecopur seals can be found on page 9 of this issue. Contact: Economos UK Ltd, Seal Jet House, 83 Buckingham Avenue, Slough Trading Estate, Slough Berkshire SL1 4PN, UK. Tel: +44 1753 696565, Fax: +44 1753 696181, Email: [email protected].
High-temperature elastomers seal oil and gas Precision Polymer Engineering of Blackburn, UK, has developed four new Aflas elastomers for high-temperature sealing applications in the extreme environments that are encountered in oil and gas production and processing. The new grades, which offer 27% increased flex life, typical of NBR elastomers, are designated A95H (explosive decompression), A85H, A75H and A70H. The elastomers increase Aflas’ seal temperature resistance from 260°C to a peak of 290°C, while still retaining the steam and chemical/sour gas resistance that is characteristic of this product range, says the company. During recent trials, the Aflas A95H explosive decompression grade withstood a two-second pressure drop from around 5.2 MPa (750 lb/in2) to normal atmospheric pressure. Furthermore, when subjected to long-term heat ageing at 175°C, the improved Aflas material retains at least 30% higher tensile strength and elongation than standard Aflas grades, claims Precision Polymer Engineering.
The elastomers can be combined with other materials to increase the number of applications for which they can be used. These include metal substrates or reinforcing fabrics for high-pressure applications. Used as a composite seal, Aflas offers a cost-effective and long-lasting alternative to other more expensive elastomers, says the company. Contact: Precision Polymer Engineering, Clarendon Road, Blackburn BB1 9SS, UK. Tel: +44 1254 295400, Fax: +44 1254 680182.
Simrit extends its product range Simrit, the industrial products division of Freudenberg-NOK, has launched three new products that include additions to its Simriz range of perfluoroelastomer compounds and a new line of coloured O-rings. The Simriz products provide superior chemical resistance, strong physical properties (including compression set resistance), high or low temperature capabilities, and resistance to steam and organic amines. These products are used as secondary seals in mechanical seals, and also in valves, sensors and fuel systems. Simrit has also announced that it has signed an exclusive agreement with DuPont Dow Elastomers to provide a Genuine Viton programme for fluorocarbon O-rings that are produced at its facility based in Santa Ana, California, USA. According to the company, these O-rings offer superior chemical resistance and low temperature performance for the most demanding applications. The Simrit Division is also developing its own line of coloured Orings. The identification of individual compounds by using different colours has been a popular idea for many years, but the introduction of colour has often adversely affected the material. Also, these O-rings provide greater flexibility, reduce friction and, by using Simrit’s proprietary coating process, eliminate flaking that often causes a blockage in filter systems. These products are being targeted at the aerospace, chemical processing, food and pharmaceutical, oil
Sealing Technology April 2003