(19)

(11)

EP 2 126 443 A1

(12)

(43) Date of publication: 02.12.2009 Bulletin 2009/49 (21) Application number: 08717174.0 (22) Date of filing: 27.02.2008

(51) International Patent Classification (IPC):  F16L 19/08(2006.01) (86) International application number: PCT/EP2008/052367 (87) International publication number: WO 2008/104562 (04.09.2008 Gazette 2008/36)

(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 (30) Priority: 01.03.2007 EP 07425111 (71) Applicant: Georg Fischer TPA S.r.l. 40013 Castelmaggiore BO (IT)	(72) Inventor: TUBARO, Bruno 16030 Sori (GE) (IT) (74) Representative: Weiss, Wolfgang  Georg Fischer AG Patentabteilung Amsler-Laffon-Strasse 9 8201 Schaffhausen 8201 Schaffhausen (CH)