RE 18308-76/12.2017, Bosch Rexroth Oil Control S.p.A.
Description
It provides static and dynamic motion control by regulating
flow and pressure IN and OUT of the hydraulic motor at ports
C1 and C2. When installed close to the motor, it can stop
runaway in case of hose failure. The check sections allow
free flow into the motor and prevent reverse movement;
the pilot assisted relief valves control the movement when
pilot pressure is applied. A system of check valves allows
cross line relief; an optional make-up port (T) allows to
compensate for any volume change. Through port C3, a
shuttle valve directs either V1 or V2 pressure to the spring
actuated brake for brake releasing.
Motion control
with brake release port
RE 18308-76
Edition: 12.2017
Replaces: 03.2016VAA-B-SICN-ST-VF-150 05.71.45 - X - 04 - Z
Characteristic curve
Flow Q
Pressure Δp
Technical data
Operating pressure up to 210 bar (3000 psi)
Max. flow 120 l/min. (32 gpm)
Weight 5.6 kg (12.3 psi)
Manifold material Aluminium
Note: aluminium bodies are often strong enough for operating
pressures exceeding 210 bar (3000 psi), depending from the
fatigue life expected in the specific application. If in doubt, consult
our Service Network.
Fluid Mineral oil (HL, HLP) according
DIN 51524
Fluid temperature range -30 °C to 100 (-22 to 212 °F)
Viscosity range 10 to 500 mm
2
/s (cSt)
Recommended degree of fluid
contamination
Class 19/17/14 according to
ISO 4406
Other technical data see data sheet 18350-50
Relief setting: at least 1.3 times the highest expected load.
Note: for applications outside these parameters, please consult us.
2
Bosch Rexroth Oil Control S.p.A., RE 18308-76/12.2017
Bosch Rexroth Oil Control S.p.A.
Via Leonardo da Vinci 5
P.O. Box no. 5
41015 Nonantola – Modena, Italy
Tel. +39 059 887 611
Fax +39 059 547 848
compact-hydraulics-pib@boschrexroth.com
www.boschrexroth.com/compacthydraulics
© This document, as well as the data, specifications and other information set
forth in it, are the exclusive property of Bosch Rexroth Oil Control S.p.a.. It
may not be reproduced or given to third parties without its consent. The data
specified above only serve to describe the product. No statements concerning
a certain condition or suitability for a certain application can be derived from
our information. The information given does not release the user from the
obligation of own judgment and verification. It must be remembered that our
products are subject to a natural process of wear and aging. Subject to change.
VAA-B-SICN-ST-VF-150 | Motion control
Dimensions [mm (inches)]
Dimensions
Type Material number
05714503043500B R930006933
05714510043500B R930006791
Type Material number
Ordering code
05.71.45 X 04 Z
Motion control
with brake release port
SPRINGS
Adj. pressure
range
bar (psi)
Pres. increase
bar/turn
(psi/turn)
Std. setting
Q=5 (l/min)
bar (psi)
Pilot ratio
03 7:6:1
35
100-350
(1450-5000)
105
(1523)
150
(2200)
10 3:1
Port sizes V1 - V2 C1 - C2 T C3
G 3/4
G 3/4 G 1/2 G 1/4
Preferred types
Note: Tamper proof cap available on request.
