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Parker qualifies sealing materials for sour gas service
NEWS ‘This newest centre will strengthen our global network of technical centres that support each of our key regions. The Naperville, Illinois-based R & D centre will complement our existing technical centre in Plymouth, Michigan, and help drive our growth ambitions for the US market. Over the past five years investments of over US$2.5 billion have been made by SKF in the USA, both by building new facilities and the acquisition of the lubrication company Lincoln Industrial and most recently, Kaydon Corp.’ During the first step, which should be completed within four years, SKF plans to initially invest approximately US$30 million, including employing around 80 engineers. Eventually the facility may house up to 200 employees. Construction work is currently under way and operations are expected to begin by the end of 2015. Recruitment of the first wave of engineers and technical specialists has already begun, says the firm. Contacts: SKF, SE-415 50 Göteborg, Sweden. Tel: +46 31 337 1000, Fax: +46 31 337 2832, Email: [email protected], Web: www.skf.com SKF USA Inc, 890 Forty Foot Road, Lansdale, PA 19443, USA. Tel: +1 267 436-6000, Fax: +1 267 436 6001, Web: www.skf.com/us
Parker qualifies sealing materials for sour gas service
P
arker Engineered Materials Group has confirmed that eight additional materials from its range of sealing compounds are suited to meet the challenging demands of the oil and gas industry. After successfully passing the sour-gas test specified by the latest API 6A standard, the materials from the firm’s Polon polytetrafluoroethylene (PTFE) and polyetheretherketone (PEEK) compound family further expand its range of sealing materials that comply with API 6A, NORSOK M-710 and ISO 23936-2, featuring HNBR, FKM and FFKM formulations. The materials tested comprised six PTFE and two PEEK compounds. The tests were performed according to API 6A Annex F (ISO 10423:2009, Section F.1.13.5.2) and ISO 37:2011-12 (Tensile Properties of Elastomers). The samples were immersed in the hydrocarbon oil phase of a multi-phase sour fluid containing 10 mol% hydrogen sulphide (10/80/10 mol% H2S/CO2/CH4) for 160 hours at 177°C and at a pressure of 1000 psi (|70 bar).
November 2014
All eight of the compounds tested according to the above procedures successfully passed the test, says the firm. No significant changes to mechanical and physical properties were noted, and changes to tensile properties amounted to less than 10%. The material properties are assured across all dimension-related processes. According to the company, the results provide confirmation of the viability of these compounds for use in the demanding applications of the oil and gas industry, such as offshore platforms, deep-sea pumps and drilling equipment, and oil swivels and valves. Contacts: Parker Hannifin GmbH, Engineered Materials Group Europe, Arnold-Jäger-Strasse 1, 74321 BietigheimBissingen, Germany. Tel: +49 7142 3510, Fax: +49 7142 351293 Parker Hannifin Corp, 6035 Parkland Boulevard, Cleveland, OH 44124-414, USA. Tel: +1 216 896 3000, Fax: +1 216 896 4000, Web: www.parker.com
Publications of Interest Report analyses NBR powder market
T
ransparency Market Research has produced a report that analyses the nitrile butadiene rubber (NBR) powder market worldwide, covering the forecast period 2013–2019. According to the study – entitled ‘Nitrile Butadiene Rubber (NBR) Powder (Linear and Cross-linked) Market for PVC Modification, Automotives, Buildings, Footwear, Consumer Goods and Other Applications – Global Industry Analysis, Size, Share, Growth, Trends and Forecast, 2013–2019’ – the global NBR powder market was valued at $275.6 million in 2012 and is anticipated to reach $425.7 million by 2019 – growing at a compound annual growth rate (CAGR) of 6.5% from 2013 to 2019. In terms of volume, the global NBR powder market stood at 73 820.8 tons in 2012. Speciality forms of NBR continue to grow with increasing applications in different end-use industries. NBR powder finds key applications in PVC and other resin modification. It is also used as binder in frictional materials. Rising demand for automotive components, such as brake pads and brake lining, is the major driving factor for the NBR powder market. NBR powder is available in two key types: linear and cross-linked or pre-cross-linked. The latter dominates the global NBR powder mar-
ket. Cross-linked NBR (X-NBR) powder finds wide application in resin modification and frictional materials, whilst linear NBR powder is mainly consumed in the manufacture of seals and gaskets. Both the product types are expected to grow significantly in the next few years, says the report. However, cross-linked NBR powder is anticipated to be the fastest growing segment in terms of volume and is expected grow at a CAGR of 5.2% from 2013 to 2019. Contact: Transparency Market Research, State Tower, 90 State Street, Suite 700, Albany NY 12207, USA. Tel: +1 518 618 1030, Email: [email protected], Web: www.transparencymarketresearch.com
Recently Published Papers UÊ <°Ê+>]Ê9°Ê>]Ê °Ê< >}Ê>`Ê7°ÊÕ>]Ê State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, People’s Republic of China; and Y. Wu, Thermal Engineering Department, Tsinghua University, Beijing, People’s Republic of China: ‘Influence of dynamic seals on silt abrasion of the impeller ring in a centrifugal pump’, Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, Volume 227, Number 5, August 2013, pages 557–566. The water flow and movement of silt in a prototype double-suction centrifugal pump was simulated using an Euler–Lagrange multiphase flow model. Back-blade and J-groove configurations were adopted to protect the impeller ring from silt abrasion. Four backblades and four J-grooves were considered. The results show that the relative velocity of water around the impeller ring is too low to move silt out of the spacing between the impeller and the casing, which results in a high concentration of silt around the impeller ring. The high silt concentration in this area is the major contributor to silt abrasion of the ring. Back-blade and J-groove configurations are effective in reducing silt concentration around the ring, but extra friction loss is also introduced and the efficiency of the pump decreases. Optimisation of the length, position and number of back-blades, and the shape and number of J-grooves, decreases losses in pump efficiency and effectively protects the impeller ring. Case 4 for the backblade and case 8 for the J-groove were the most effective configurations in this study.
Sealing Technology
7
Parker qualifies sealing materials for sour gas service
P
arker Engineered Materials Group has confirmed that eight additional materials from its range of sealing compounds are suited to meet the challenging demands of the oil and gas industry. After successfully passing the sour-gas test specified by the latest API 6A standard, the materials from the firm’s Polon polytetrafluoroethylene (PTFE) and polyetheretherketone (PEEK) compound family further expand its range of sealing materials that comply with API 6A, NORSOK M-710 and ISO 23936-2, featuring HNBR, FKM and FFKM formulations. The materials tested comprised six PTFE and two PEEK compounds. The tests were performed according to API 6A Annex F (ISO 10423:2009, Section F.1.13.5.2) and ISO 37:2011-12 (Tensile Properties of Elastomers). The samples were immersed in the hydrocarbon oil phase of a multi-phase sour fluid containing 10 mol% hydrogen sulphide (10/80/10 mol% H2S/CO2/CH4) for 160 hours at 177°C and at a pressure of 1000 psi (|70 bar).
November 2014
All eight of the compounds tested according to the above procedures successfully passed the test, says the firm. No significant changes to mechanical and physical properties were noted, and changes to tensile properties amounted to less than 10%. The material properties are assured across all dimension-related processes. According to the company, the results provide confirmation of the viability of these compounds for use in the demanding applications of the oil and gas industry, such as offshore platforms, deep-sea pumps and drilling equipment, and oil swivels and valves. Contacts: Parker Hannifin GmbH, Engineered Materials Group Europe, Arnold-Jäger-Strasse 1, 74321 BietigheimBissingen, Germany. Tel: +49 7142 3510, Fax: +49 7142 351293 Parker Hannifin Corp, 6035 Parkland Boulevard, Cleveland, OH 44124-414, USA. Tel: +1 216 896 3000, Fax: +1 216 896 4000, Web: www.parker.com
Publications of Interest Report analyses NBR powder market
T
ransparency Market Research has produced a report that analyses the nitrile butadiene rubber (NBR) powder market worldwide, covering the forecast period 2013–2019. According to the study – entitled ‘Nitrile Butadiene Rubber (NBR) Powder (Linear and Cross-linked) Market for PVC Modification, Automotives, Buildings, Footwear, Consumer Goods and Other Applications – Global Industry Analysis, Size, Share, Growth, Trends and Forecast, 2013–2019’ – the global NBR powder market was valued at $275.6 million in 2012 and is anticipated to reach $425.7 million by 2019 – growing at a compound annual growth rate (CAGR) of 6.5% from 2013 to 2019. In terms of volume, the global NBR powder market stood at 73 820.8 tons in 2012. Speciality forms of NBR continue to grow with increasing applications in different end-use industries. NBR powder finds key applications in PVC and other resin modification. It is also used as binder in frictional materials. Rising demand for automotive components, such as brake pads and brake lining, is the major driving factor for the NBR powder market. NBR powder is available in two key types: linear and cross-linked or pre-cross-linked. The latter dominates the global NBR powder mar-
ket. Cross-linked NBR (X-NBR) powder finds wide application in resin modification and frictional materials, whilst linear NBR powder is mainly consumed in the manufacture of seals and gaskets. Both the product types are expected to grow significantly in the next few years, says the report. However, cross-linked NBR powder is anticipated to be the fastest growing segment in terms of volume and is expected grow at a CAGR of 5.2% from 2013 to 2019. Contact: Transparency Market Research, State Tower, 90 State Street, Suite 700, Albany NY 12207, USA. Tel: +1 518 618 1030, Email: [email protected], Web: www.transparencymarketresearch.com
Recently Published Papers UÊ <°Ê+>]Ê9°Ê>]Ê °Ê< >}Ê>`Ê7°ÊÕ>]Ê State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, People’s Republic of China; and Y. Wu, Thermal Engineering Department, Tsinghua University, Beijing, People’s Republic of China: ‘Influence of dynamic seals on silt abrasion of the impeller ring in a centrifugal pump’, Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, Volume 227, Number 5, August 2013, pages 557–566. The water flow and movement of silt in a prototype double-suction centrifugal pump was simulated using an Euler–Lagrange multiphase flow model. Back-blade and J-groove configurations were adopted to protect the impeller ring from silt abrasion. Four backblades and four J-grooves were considered. The results show that the relative velocity of water around the impeller ring is too low to move silt out of the spacing between the impeller and the casing, which results in a high concentration of silt around the impeller ring. The high silt concentration in this area is the major contributor to silt abrasion of the ring. Back-blade and J-groove configurations are effective in reducing silt concentration around the ring, but extra friction loss is also introduced and the efficiency of the pump decreases. Optimisation of the length, position and number of back-blades, and the shape and number of J-grooves, decreases losses in pump efficiency and effectively protects the impeller ring. Case 4 for the backblade and case 8 for the J-groove were the most effective configurations in this study.
Sealing Technology
7