Related Manuals for Flowserve GESTRA BB 1 Series
Summary of Contents for Flowserve GESTRA BB 1 Series
- Page 1 BB 1... BB 2... Installation and Maintenance Instructions 810677-01 Dual-Plate Check Valves BB 1..., BB 2...
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Page 2: Table Of Contents
Contents Page Important Notes Usage for the intended purpose ................... 8 Safety note ........................8 Warning ......................... 8 Ratings pursuant to article 9 of the PED ............... 9 Explanatory Notes Scope of supply ......................10 Description ........................10 Function ........................10 Technical data ...................... - Page 3 Component Parts BB 1... Fig. 1...
- Page 4 Component Parts BB 2... Fig. 2...
- Page 5 Component Parts BB 1... with dampers Fig. 3...
- Page 6 Sealing plug with gasket Eyebolt Name plate Body Plate support O-ring Semi-circular valve plates Spring Spring Hinge pin Hinge pin support Threaded bolt Damper (cpl.) with gasket...
- Page 7 Pressure Drop Chart Fig. 4...
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Page 8: Important Notes
Important Notes Usage for the intended purpose The swing and dual-plate check valves BB ensure unidirectional flow in pipes by preventing a backflow of liquids or gases. Use this equipment only within the specified pressure and temperature ratings and check corrosion resistance and chemical suitability for the application in question. Safety note The valve must only be installed by qualified staff. -
Page 9: Ratings Pursuant To Article 9 Of The Ped
Important Notes – continued – Ratings pursuant to article 9 of the PED Liquid Fluid group BB 12/21 G, PN 6 BB 14/24 G, PN 16 BB 12/22 A, C, PN 10 BB 19 A, C, PN 160 BB 12/22 M, PN 10 BB 16/26 M, PN 40 Exception pursuant to... -
Page 10: Explanatory Notes
Explanatory Notes Scope of supply BB 1... 1 Dual-plate check valve type BB 1... 1 Installation manual BB 2... 1 Dual-plate check valve type BB 2... 1 Installation manual BB 1... D 1 Dual-plate check valve type BB 1... with dampers 1 Installation manual BB 2... -
Page 11: Technical Data
Explanatory Notes – continued – Technical Data Pressure / temperature ratings*) for BB, grey cast iron down to –10 °C at nominal pressure p-t series to EN 1092-2, table 17, quality class 250, DN 150 - 800 mm Temperature [°C] 100 150 200 250 300 350 400 450 500 550 BB 11 G, BB 21 G [bar] BB 12 G, BB 22 G [bar]... -
Page 12: Corrosion Resistance
Explanatory Notes – continued – Technical Data – continued – Pressure / temperature ratings*) for BB, stainless steel down to –105 °C at nominal pressure p-t series to EN 1092-1, table 18, material group 12 E0, DN 150 -800 mm (BB 19 A, DN 150 - 300 mm) Temperature [°C]... -
Page 13: Name Plate / Marking
Explanatory Notes – continued – Name Plate / Marking Type code BB 1... as specified by EN ISO 26552 Direction of flow For further ratings to EN 19 see valve body. indicates the manufacturing year 2002. 2002 Fig. 5 Type code BB 2... as specified by EN ISO 26552 Direction of flow For further ratings to EN 19 see valve body. -
Page 14: Installation
Installation Springs The dual-plate check valve BB 1..., BB 2... with standard springs may be fitted in horizontal pipework or in vertical pipework with upward flow. For downward flow special springs are required. For more information refer to our data sheet “Dual- Plate Check Valve BB”. - Page 15 Installation – continued – incorrect correct Fig. 7 Fig. 8 optimum with pump Fig. 9 Fig. 10...
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Page 16: Installation Note
Commissioning BB 1..., BB 2... Dual-plate check valves BB... do not require special preparations prior to their commissioning. If the springs or O-rings of the dual-plate check valves BB 1... have been replaced check plugs for positive sealing and, if necessary, retighten them. Please refer to pages 22 to 24 for information on torques. -
Page 17: Maintenance
Maintenance GESTRA dual-plate check valves BB ... do not require any special maintenance. However, in certain cases (cf. “Commissioning”) it might be necessary to replace the springs or O-rings. Danger Note that springs are preloaded, which means that they can jump out of the plate body when the valve is being installed or removed. -
Page 18: Bb 1
Maintenance – continued – Replacing springs / O-rings of the BB 1... – continued – Screw in and tighten screws. Remove tension plates. Install dual-plate check valve BB 1... Tools Spanner socket A. F. 17, 19, 22, 24 mm to DIN 3124 Hexagon socket spanner A. - Page 19 Maintenance – continued – Danger Note that springs are preloaded, which means that they can jump out of the plate body when the valve is being installed or removed. This presents the risk of injuries to hands, arms and face. Replacing springs of the BB 2...
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Page 20: Bb 2
Maintenance – continued – Replacing springs of the BB 2... – continued – Insert new springs using tension plates. Align support plates. Fit hinge pins and support plates. Remove tension plates. Insert semicircular plates with springs and support plates. -
Page 21: Tools
Maintenance – continued – Replacing springs of the BB 2... – continued – Align semicircular plates. Insert and tighten Mount dual-plate check valve BB 2... threaded bolts. Tools Spanner socket A. F. 17, 19, 22, 24 mm to DIN 3124 Hinged face spanner A. -
Page 22: Torques
Maintenance – continued – Torques [Nm] Austenitic steel Item DN [mm] BB 11... BB 12... BB 14... BB 15... BB 16... BB 17... BB 18... BB 19... 1080 1080 1080 1080 1080 2240 2240 2240 2240 2240 1940 1940 1940 1940 1940 1000... - Page 23 Maintenance – continued – Torques [Nm] Bronze Item DN [mm] BB 11... BB 12... BB 14... BB 15... BB 16... BB 17... BB 18... BB 19... 1420 1420 1420 1420 1420 1000 1420 1420 1420 1420 1420 1200 Do not use lubricant for fastening bolts. Bronze Item DN [mm]...
- Page 24 Maintenance – continued – Torques [Nm] Austenitic steel/Body covered with hard rubber lining or LEVASINT ® Item DN [mm] BB 21... BB 22... BB 24... BB 25... BB 26... Do not use lubricant for fastening bolts. ® Bronze /Body covered with hard rubber lining or LEVASINT Item DN [mm] BB 21...
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Page 25: Spare Parts
Spare Parts Spare Parts List Stock code Stock code Stock code Stock code Item EPDM PTFE 038982 038543 037847 346778 346777 346779 342711 342598 342931 342978 342713 342710 344372 343721 342523 344484 344491 342522 038718 182574 340825 344592 342569 342565 038705 175131 342584... - Page 26 Spare Parts – continued – Spare Parts List Stock code Stock code Stock code Stock code Item 2 WA 7 WA 5 VO 7 WAI 348190 348198 348220 348200 348191 348201 348199 348221 348192 248202 348209 348222 348193 348203 348211 348223 348194 348213...
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Page 27: Annex
Annex Declaration of Conformity We hereby declare that the pressure equipment BB 1... and BB 2... conform to the following European Directive: EC Pressure Equipment Directive (PED) No. 97/23 of 29 May 1997 Dual-plate check valves are pressure equipment as defined in article 1, section 2.1.4 of the PED. - Page 28 Fax 00 48 58 / 306 10 03 oder 306 33 00 E-mail: gestra@gestra.es E-mail: gestra@gestra.pl France Portugal Flowserve Flow Control S. A. S. Flowserve Portuguesa, Lda. 10 Avenue du Centaure, BP 8263 Av. Dr. Antunes Guimarães, 1159 F-95801 CERGY PONTOISE CEDEX Porto 4100-082 Tél.