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23–24 November 2010Seals for Pumps (short course)Runcorn, Cheshire, UKContact: ESR Technology LtdWhittle House, 410 Birchwood Park, WarringtonCheshire WA3 6FW, UKTel: +44 1925 843512Fax: +44 1925 843500Email: [email protected]
26 November 2010Society of Piping Engineers and Designers’ one-day training course London, UKContact: 20CC Ltd, 40 Maybourne GrangeTurnpike Link, Croydon CR0 5NH, UKTel: +44 20 8680 3511Fax: +44 788 799 2427Web: www.20cc.co.ukOr contact: Society of Piping Engineersand Designers92–11 West Road, Suite 143219Houston, TX 77064, USA Tel: +1 832 286 7678Email: [email protected]: www.spedweb.com
30 November 2010‘Why mechanical seals fail’ (one day course)Runcorn, Cheshire, UKContact: ESR Technology LtdWhittle House410 Birchwood Park, WarringtonCheshire WA3 6FW, UKTel: +44 1925 843512Fax: +44 1925 843500Email: [email protected]
30 November to 1 December 2010RubberChem 2010Vienna, AustriaContact: iSmithers, ShawburyShrewsbury, ShropshireSY4 4NR, UKTel: +44 1939 250383Email: [email protected]: www.ismithers.net
30 November to 1 December 2010Fluid Machinery – Meeting the Environmental Challenge (two-day seminar) London, UKContact: Institution of Mechanical
Engineers, 1 Birdcage WalkLondon SW1H 9JJ, UKTel: +44 20 7973 1294 Fax: +44 20 7222 9881 Email: [email protected]: www.imeche.org
30 November to 2 December7th Biennial Valve World 2010 Conference & ExhibitionDüsseldorf, GermanyContact: Valve WorldPO Box 396, NL-7200 AJ ZutphenThe NetherlandsTel: +31 575 585 270 Fax: +31 575 511 099Email: [email protected]: www.valve-world.nl
17–19 January 2011FLMUG Winter MeetingSan Antonio, Texas, USAContact: Fluid Leak Management UsersGroup (FLMUG), 2710 Foxhunters RoadSuite 100 Flatwoods, KY 41139 USATel: +1 606 833 0771Email: [email protected]: www.fluidleak.com
EVENTS CALENDAR
EVENTS / NEWS
16Sealing Technology November 2010
New surface treatment procedure eliminates sticking effects in solenoid valves
Progress has been made in per-manently reducing the sticking
effects in solenoid valves by using nano-scale materials.
By using a new surface treatment pro-cedure, referred to as Reduced Friction by Nanotechnology (RFN), it is possible to mod-ify elastomer materials in a way that not only reduces the coefficient of friction, and conse-quently the effects of static friction or ‘stiction’, but also keeps it reasonably constant over the service life of the component.
The vast majority of armatures in modern solenoid valves are elastomer composite parts. The reliability and serviceability of such sole-noid armatures depend on both ‘deformability’ and adhesion minimisation, which prevents an elastomer from sticking to the valve seat.
The contact area, contact pressure force, material properties and the lubricating media all have a direct influence on the size of the stiction effect. RFN reduces this sticking effect.
In addition to these primary functional improvements, other advantages include: reduc-tion in adhesion, which prevents the so-called ‘Monday morning effect’; even switching times;
lower magnetic forces, which reduce installa-tion space requirements and support minia-turisation; an increase in the service life of the solenoid valve; an improvement in chemical resistance; a reduction in permeation, as a result of the barrier effect; and no additional coatings (for example, on the seal seat) are necessary.
Contact:
FTL Technology, Bruntcliffe Avenue, Leeds 27 Business
Park, Morley, Leeds LS27 0TG, UK.
Tel: +44 113 252 1061,
Fax: +44 113 252 2627,
Email: [email protected],
Web: www.ftltech.co.uk
A new surface treatment procedure, referred to as Reduced Friction by Nanotechnology (RFN), can make solenoid valves more reliable and reduce power consumption.
