RE 18318-54/03.2016, 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)
50 bar (725 psi)
Max. flow 20 l/min (5 gpm)
Max. internal leakage
1)
130 cm
3
/min. (8 cu.in./min.)
Fluid temperature range -30 to 100 °C (-22 to 212 °F)
Installation torque 41 - 47 Nm (30 - 35 ft-lbs)
Weight 0.3 kg (0.6 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) 1 - 3 to 80% of pressure setting
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 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. Compared to VRPR-10A it allows a
smoother dynamic and lower flow rate.
Pressure reducing and relieving,
direct acting spool damped type, fixed setting
Common cavity, Size 10
RE 18318-54
Edition: 03.2016
Replaces: 07.2012VRPR-10A-8 04.95.09.83.85 - Z
Characteristic curve
Flow Q
Pressure Δp