(19)

(11)

EP 2 516 901 A1

(12)

(43) Date of publication: 31.10.2012 Bulletin 2012/44 (21) Application number: 10838741.6 (22) Date of filing: 14.12.2010

(51) International Patent Classification (IPC):  F16K 1/228(2006.01) F16J 15/52(2006.01) F16J 15/16(2006.01) F16K 1/226(2006.01) (86) International application number: PCT/FI2010/051018 (87) International publication number: WO 2011/076992 (30.06.2011 Gazette 2011/26)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 21.12.2009 FI 20096369 (71) Applicant: Metso Automation Oy 01380 Vantaa (FI)	(72) Inventor: LAITINEN, Tarmo FI-00210 Helsinki (FI) (74) Representative: Holmström, Stefan Mikael  Kolster Oy Ab Iso Roobertinkatu 23 P.O. Box 148 00121 Helsinki 00121 Helsinki (FI)