RE 18310-24/03.2016, Bosch Rexroth Oil Control S.p.A.
Description
It is a directional valve which generates continuous
reciprocating motion of a double acting actuator, with no
need of external controls. When flow starts into P, the
control spool opens wider P to A (and B to Tank); the delta
p between P and A is employed to keep the spool in this
wider open position. As load becomes excessive, or at
end-stroke, the system relief valve opens, the oil is diverted
to tank, flow P to A stops and the delta p vanishes; now the
combined action of the centering springs and of the static
pressure in hose A push back the spool, and make it shift
to the other position. This opens P to B (and A to Tank) and
the motion is reversed; the flow builds-up a delta p
between P and B which holds the spool in the new
position. When the system relief valve opens again the flow
stops, the delta p vanishes, and the spool shifts to its
“normal” P to A position: a new cycle starts.
Automatic directional
RE 18310-24
Edition: 03.2016
Replaces: 04.2013V.LC2-IA12 L5235 - X - 00000000
Characteristic curve
Technical data
Max. operating pressure 250 bar (3600 psi)
Flow range 10 - 100 l/min. (3 - 26 gpm)
Good and stable shifting from P -> A into P -> B requires that some
oil returns back from port A as flow stops and A opens toward Tank:
as a practical rule, please ensure that line A includes a portion of
flexible hose at least 500 mm long to provide some “accumulator
effect”.
For adjustment of the pressure setting of the system relief valve, the
reciprocating function must be temporarily disabled: in order to lock
the spool and prevent shifting, screw down the locking screw (if
available) under the dome nut. This screw must be turned back up to
the initial position, once the adjustment is finished.
Note: this valve is available with features different from what here
described; contact our Service Network for the relevant information:
- Initial oil flow direction: P -> B (instead of P -> A).
Weight 2.8 kg (6.2 lbs)
Manifold material Cast iron (ISO 16112/JV/400)
Fluid Mineral oil (HL, HLP) according
DIN 51524
Fluid temperature range -20 °C to 80 (-4 to 176 °F)
Viscosity range 5 to 420 mm
2
/s (cSt)
Permissible degree of fluid
contamination
ISO 4572: β
x
≥75 X=12...15
ISO 4406: class 20/18/15
NAS 1638: class 9
Note: for applications outside these parameters, please consult us.
2
Bosch Rexroth Oil Control S.p.A., RE 18310-24/03.2016
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.
V.LC2-IA12 | Automatic directional
Dimensions [mm (inches)]
Dimensions
Type Material number
L52350000000000 R933007897
L5235RR00000000 R933007898
Type Material number
Ordering code
Preferred types
Automatic directional
00 Without end stroke
Port sizes A B P T
RR With end stroke
CETOP 5
(F10)
CETOP 5
(F10)
CETOP 5
(F10)
CETOP 5
(F10)
L52 35 X 00000000
