RE 18318-56/03.2016, Bosch Rexroth Oil Control S.p.A.
Technical data
Max. operating pressure
port 2 (P)
350 bar (5000 psi)
Max. pressure admitted
port 1 (A)
280 bar (4000 psi)
Max. flow 60 l/min (16 gpm)
Standard internal pilot
orifice diameter
0.6 mm
Fluid temperature range -30 to 100 °C (-22 to 212 °F)
Installation torque 41 - 47 Nm (30 - 35 ft-lbs)
Weight
1)
0.2 kg (0.44 lbs)
Cavity CA-10A-3N (see data sheet 18325-70)
Lines bodies and standard
assemblies
Please refer to section “Hydraulic
integrated circuit” or consult factory
Seal kit
2)
Code: RG10A3010520100
material no: R901111369
Fluids Mineral-based or synthetics with
lubricating properties
at viscosities of 10 to 500 mm
2
/s (cSt)
Recommended degree of
fluid contamination
Nominal value max. 10µm (NAS 8) /
ISO 4406 19/17/14
Installation position No restrictions
Other Technical Data See data sheet 18350-50
1) Standard version X=03 type
2) Only external seals for 10 valves
Description
Initially, flow passes freely from 2 to 1. When the pressure
at 1 exceeds the pressure setting, the conical poppet in
the upper, pilot stage is lifted from its seat. This allows the
main-stage piston to shift, restricting input flow at 2. This
increases the pressure drop through the valve and maintains
consistent pressure at 1. The spring chamber is drained at
3 to prevent a build-up of back-pressure against the spool.
Additionally, if pressure at 1 rises above the pressure setting,
flow is relieved to 3 until the setting is re-attained.
Pressure reducing and relieving,
pilot operated spool type
Common cavity, Size 10
RE 18318-56
Edition: 03.2016
Replaces: 07.2012VRPX-10A 04.93.07 - X - 85 - Z
Characteristic curve
Flow Q
Pressure Δp
2
Bosch Rexroth Oil Control S.p.A., RE 18318-56/03.2016
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-cv@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.
VRPX-10A | Pressure reducing and relieving, pilot operated spool type
Dimensions [mm (inches)]
Ordering code
Type Material number
049307038505000 R930006982
049307038510000 R901104118
049307038520000 R901106468
049307048535000 R930005596
Type Material number
Dimensions
Leakproof hex. socket screw
Handknob and locknut
OPTION
Tamper resistant cap
ordering code: 11.04.23.002
Mat. no. R930000752
Series 0/A to L
unchanged performances and dimensions
Pressure reducing and relieving,
pilot operated spool type
Version and options standard
SPRINGS
Adjustments
Adj. press. range
bar (psi)
Pressure increase
bar/turn (psi/turn)
Std. setting
bar (psi)
(reduc mode)
03 Leakproof hex. socket screw
04 Handknob and locknut
for
X= 03
05 25-100 (360-1450) 31 (450) 50 (725)
10 35-140 (500-2000) 48 (696) 100 (1450)
20
70-280 (1000-4000) 88 (1276) 200 (2900)
85 Common cavity, Size 10
for
X= 04
35 35-350 (500-5000) 68 (986) 350 (5000)
Preferred types
04.93.07 X 85 Z 00 *
Note: Special settings available. Contact factory authorized
representative for ordering code.
