RE 18318-53/03.2016, Bosch Rexroth Oil Control S.p.A.
Technical data
Max. operating pressure
port 2 (P)
350 bar (5000 psi)
210 bar (3000 psi) for version Z=01
Max. pressure admitted
port 1 (A)
105 bar (1500 psi)
Max. flow 30 l/min (8 gpm)
Max. internal leakage
1)
50 cm
3
/min. (3 cu.in./min.)
Fluid temperature range -30 to 100 °C (-22 to 212 °F)
Installation torque 41 - 47 Nm (30 - 35 ft-lbs)
Weight
2)
0.26 kg (0.57 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
MTTFd 150 years see data sheet 18350-51
Seal kit
3)
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) 1 - 3 to 80% of pressure setting
2) Standard version X=03 type
3) 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 valve acts to restrict
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,
direct acting spool type
Common cavity, Size 10
RE 18318-53
Edition: 03.2016
Replaces: 07.2015VRPR-10A 04.95.04 - X - 85 - Z
Characteristic curve
Flow Q
Pressure Δp
2
Bosch Rexroth Oil Control S.p.A., RE 18318-53/03.2016
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.
VRPR-10A | Pressure reducing and relieving, direct acting spool type
Dimensions [mm (inches)]
Type Material number
04950403850100A R901104066
04950403850200A R901109740
04950403850400A R901102333
04950403850800A R901109742
Type Material number
049504048501000 R901109743
04950404850200A R901109744
04950404850400A R901109745
04950404850800A R901109747
Dimensions
Leakproof hex. socket screw
Handknob and locknut
OPTION
Tamper resistant cap
ordering code: 11.04.23.004
Mat. no. R930001411
*
Ordering code
04.95.04 X 85 Z 00 *
Series 0/A to L
unchanged performances and dimensions
Pressure reducing and relieving,
direct acting 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
01 2-14 (30-200) 2 (29) 8-10 (115-145)
02 2-25 (30-350) 3 (44) 7-10 (100-145)
85 Common cavity, Size 10
04
10-50 (145-725) 7 (102) 35-40 (500-580)
08 28-80 (400-1160) 14 (203) 45-50 (650-725)
Preferred types
Note: Special settings available. Contact factory authorized representative
for ordering code.
* Please contact factory in case of need of version with integrated filter.
