Flowserve BB 1 Manuel d'utilisateur

1BB 1...BB 2...BB 1... ASMEBB 2... ASMEInstallation and Maintenance Instructions 810677-03 Dual-Plate Check Valves BB 1..., BB 2...Dual-Plate Check Va

10MADEBYGESTRAFig. 4BDJCJLFMGHIEIHGKLKDesign – continued –BB 2... with dampers

11A Sealing plug with gasket BB 1...B EyeboltC Name plateD BodyE Plate support BB 1...F O-ringG Semi-circular valve platesH Spring leftI Spri

12InstallationSpringsNoteInstalling a dual-plate check valve with spring type “5 VO” in horizontal lines or vertical lines with upward flow may result

13Installation – continued –BB 1... with dampers, BB 2... with dampers1. Please note our installation recommendations on page 14.2. Use only the ey

14Installation – continued –Fig. 7Fig. 5Fig. 6Fig. 8incorrect correctoptimum with pumpExamples of Installation

15Dual-plate check valves BB... do not require special preparations prior to their commissioning. If the springs or O-rings of the dual-plate check va

16MaintenanceBB 1... Changing springs and O-ringsDangerNote that springs are preloaded, which means that they can jump out of the plate body when the

17Maintenance – continued –BB 1... Changing springs and O-rings – continued – Tools Spanner socket A. F. 17, 19, 22, 24 mm to DIN 3124 Hexagon

18Dual-plate check valve BB 2... Undo threaded bolts, turn semicircular plates to the left.Take out semicircular plates, springs and support plates.Re

19Maintenance – continued –BB 2... Changing springs – continued –Insert new springs using tension plates. Fit hinge pins and support plates.Align

2ContentsImportant NotesUsage for the intended purpose ...

20Maintenance – continued –BB 2... Changing springs – continued – Tools Spanner socket A. F. 17, 19, 22, 24 mm to DIN 3124 Hinged face spanner

21Maintenance – continued –Torques [Nm]Do not use lubricant for fastening bolts.Do not use lubricant for fastening bolts.ItemDN[mm]Austenitic steelBB

22Maintenance – continued –Torques [Nm] – continued –Do not use lubricant for fastening bolts.Do not use lubricant for fastening boltsItemDN[mm]Bron

23Maintenance – continued –Torques [Nm] – continued –Do not use lubricant for fastening bolts.Do not use lubricant for fastening bolts.ItemDN[mm]Aus

24Spare PartsSpare Parts ListMinimum purchasing quantity 20 pcs. Two O-rings are required per valve. Contact your local dealer for small quantities.It

25Spare Parts – continued –Spare Parts List – continued –Springs complete with tension plates.Contact your local dealer for small quantities.ItemDN[

26DecommissioningDangerRisk of severe burns and scalds to the whole body! Before loosening flanged connections, stuffing box unions or sealing plugs, ma

27We hereby declare that the pressure equipment BB 1... and BB 2... conform to the following European Directive: EC Pressure Equipment Directive (P

28810677-03/806cm · 2004 GESTRA AG · Bremen · Printed in GermanyGreat BritainFlowserve Flow Control (UK) Ltd.Burrel Road, Haywards HeathWest Sussex RH

3MaintenanceDanger ...

4Pressure Equipment Directive (PED)Important NotesSafety noteThe valve must only be installed and commissioned by qualified staff.Maintenance and servi

5Swing and dual-plate check valves BB feature two separately suspended semi-circular plates pivoting on an independent hinge pin. The two plates open

6Name Plate / MarkingFor pressure & temperature ratings see indication on trap body (DN 50 – DN 125) or specification on the name plate (DN 150 to

7DesignFig. 1AABDJCAJEHIFHIGGEBB 1...

8Design – continued –Fig. 2AABDJCAJEIFMGGHHIEBB 1... with dampers

9Design – continued –Fig. 3IDKBJJCLGGKLIFHHBB 2...