(19)

(11)

EP 2 220 418 A1

(12)

(43) Date of publication: 25.08.2010 Bulletin 2010/34 (21) Application number: 08845772.6 (22) Date of filing: 29.10.2008

(51) International Patent Classification (IPC):  F16L 37/32(2006.01) (86) International application number: PCT/DK2008/000383 (87) International publication number: WO 2009/056139 (07.05.2009 Gazette 2009/19)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 30.10.2007 DK 200701549 (71) Applicant: Danfoss A/S 6430 Nordborg (DK)	(72) Inventors: NYBERG, René, Bøgelund 2740 Skovlunde (DK) CANCIAN, Graziano DK-8600 Silkeborg (DK)