Page 628 - Hydrover-hydraulic-integrated-circuits-catalogue

COMPONENTS

VRPX-10A

Pressure reducing and relieving,

pilot operated spool type

Common cavity, Size 10
RE 18318-56
Edition: 03.2016
VRPX-10A 04.93.07 - X - 85 - Z Replaces: 07.2012

Technical data
Max. operating pressure 350 bar (5000 psi)
port 2 (P)
Max. pressure admitted 280 bar (4000 psi)
port 1 (A)
Max. flow 60 l/min (16 gpm)
Standard internal pilot 0.6 mm
orifice diameter
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)
Description Cavity CA-10A-3N (see data sheet 18325-70)
Initially, flow passes freely from 2 to 1. When the pressure Lines bodies and standard Please refer to section “Hydraulic
at 1 exceeds the pressure setting, the conical poppet in assemblies integrated circuit” or consult factory
the upper, pilot stage is lifted from its seat. This allows the Seal kit 2) Code: RG10A3010520100
main-stage piston to shift, restricting input flow at 2. This material no: R901111369
increases the pressure drop through the valve and maintains Fluids Mineral-based or synthetics with
consistent pressure at 1. The spring chamber is drained at lubricating properties
2
3 to prevent a build-up of back-pressure against the spool. at viscosities of 10 to 500 mm /s (cSt)
Additionally, if pressure at 1 rises above the pressure setting, Recommended degree of Nominal value max. 10µm (NAS 8) /
flow is relieved to 3 until the setting is re-attained. fluid contamination 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
Characteristic curve

Pressure Δp

Flow Q

RE 18318-56/03.2016, Bosch Rexroth Oil Control S.p.A.

628 General catalogue September 2023 edition