Table of Contents
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Features
▶ Damping for stable lowering and safe downhill movement
▶ Simple adaptation to application
▶ Compact design and direct mounting to axial piston
motors A6VM and A6VE
▶ Available in a set with axial piston motors A6VM and A6VE
▶ Standard working ports according to SAE J518
▶ Integrated brake release port, with or without pressure
reduction
▶ Good efficiency through reduced flow losses
▶ Four working ports (see type code, pos. 04)
▶ Rotationally symmetric
▶ Suitable for high flow rates
▶ Size 32
▶ Nominal pressure
▶ For winches and track drives in open circuit
Contents
RE 95528
Edition: 05.2016
Motor side 450 bar
Pump side 350 bar
RE 95528/05.2016, Bosch Rexroth AG
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Table of Contents
Related Manuals for Bosch Rexroth BVD 52 Series
Summary of Contents for Bosch Rexroth BVD 52 Series
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Page 1: Table Of Contents
Mounting of the counterbalance valve ▶ Good efficiency through reduced flow losses Project planning notes ▶ Four working ports (see type code, pos. 04) Safety instructions ▶ Rotationally symmetric ▶ Suitable for high flow rates RE 95528/05.2016, Bosch Rexroth AG... - Page 2 Throttle pin, comparative diameter 0.4 mm 2.0 mm D4599 0.4 mm 0.7 mm D4580 = Available – = Not available ● The screws are not included in the scope of delivery. These can be supplied by Bosch Rexroth on request. On request Bosch Rexroth AG, RE 95528/05.2016...
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Page 3: Counterbalance Valve | Bvd/Bve Series 52
Special version = Available – = Not available ● Notice ▶ Note the project planning notes on page 13. ▶ In addition to the type code, please specify the relevant technical data when placing your order. RE 95528/05.2016, Bosch Rexroth AG... -
Page 4: Technical Data
With versions “T03”, “C03” and “D03” (concerns damping “D2”, for reservoir outlet), pressures that are higher than the nominal pressure are not permitted Bosch Rexroth AG, RE 95528/05.2016... -
Page 5: Characteristic Curves For Counterbalance Spool 33
▶ Pressure Δp of approx. 20 to 50 bar is normal for deter- mining the maximum flow in winch drives. ▶ If the desired flow (pressure difference) does not match the counterbalance spool described here, please contact us. RE 95528/05.2016, Bosch Rexroth AG... -
Page 6: Functional Description
bar. This brake vent function is employed when the mechanical brake on the gear unit cannot handle the full system pressure. The maximum permissible brake release pressure must be agreed with the winch or track drive manufacturer. Bosch Rexroth AG, RE 95528/05.2016... -
Page 7: Example Applications
C´ L´ As an alternative to the above example, other Bosch Rexroth axial piston motors (A6VM and A6VE) can also be used. Track drive application ▶ Circuit diagram example for track drive in excavator crawlers (BVD) G´... -
Page 8: Dimensions
Dimensions Long spring cover on port side C, lift via port C 473.4 (BVE) 405.6 364.6 (BVD) C´ L´ D´ G´ 6×ø15 2×ø6.4 31.8 Detail X With shuttle valve and port G (version S) DIN912 Bosch Rexroth AG, RE 95528/05.2016... - Page 9 Dimensions Long spring cover on port side D, lift via port D 473.4 (BVE) 405.6 364.6 (BVD) L´ C´ D´ G´ 6×ø15 2×ø6.4 31.8 Detail X With shuttle valve and port G (version S) DIN912 RE 95528/05.2016, Bosch Rexroth AG...
- Page 10 Only dimensions according to SAE J518, metric fastening thread is a deviation from the standard. The countersink can be deeper than as specified in the standard. No customer ports. Subject to technical change O = Must be connected (plugged when delivered) X = Plugged (in normal operation) Bosch Rexroth AG, RE 95528/05.2016...
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Page 11: Bve Installation Variants For Winch Drives
D Installation variants Counterbalance valve type BVE32.../52.C BVE32.../52.C with long spring cover on port side C Installation variants The throttling effect is always on the side with the long spring cover RE 95528/05.2016, Bosch Rexroth AG... -
Page 12: Mounting Of The Counterbalance Valve
▶ Minimum thread reach according to VDI2230 Thread Property class Tightening torque [Nm] 10.9 The tightening torque applies to the thread friction rate of μ = 0.10 (corresponds to the “lightly oiled” state of the screws) The depth depends on the motor Bosch Rexroth AG, RE 95528/05.2016... -
Page 13: Project Planning Notes
Ordering details a safety function according to ISO 13849. Please consult When placing the order, the following parameters are neces- the responsible contact person at Bosch Rexroth if you sary to ensure correct acceptance at our test benches: require reliability parameters (e.g. MTTF ) for functional ▶... - Page 14 For the initial equipment (prototype), we recommend damping D1 = D4599 and D2 = T03 for winch drives. For the initial equipment (prototype), we recommend damping D1 = D4599 and D2 = T00 for track drives. Bosch Rexroth AG, RE 95528/05.2016...
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Page 15: Safety Instructions
(e.g. safe stop) and if necessary to ensure it is properly implemented. RE 95528/05.2016, Bosch Rexroth AG... - Page 16 BVD/BVE Series 52 | Counterbalance valve Bosch Rexroth AG © Bosch Rexroth AG 2016. All rights reserved, also regarding any disposal, Mobile Applications exploitation, reproduction, editing, distribution, as well as in the event of Glockeraustraße 4 applications for industrial property rights. The data specified within only 89275 Elchingen, Germany serves to describe the product.