Page 615 - Hydrover-hydraulic-integrated-circuits-catalogue

COMPONENTS

Relief, pilot operated spool type

Common cavity, Size 10
RE 18318-08
Edition: 03.2016
VSPN-10A 04.12.08 - X - 85 - Z Replaces: 11.2015

Technical data
Max. operating pressure 420 bar (6000 psi)
port 1 (P)
Max. pressure admitted 350 bar (5000 psi) for version 03
port 2 (T) 210 bar (3000 psi) for version 04
Flow range 3 - 120 l/min (1 - 32 gpm)
3
Max. internal leakage 1) 200 cm /min. (12 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) 0.21 kg (0.46 lbs)
Cavity CA-10A-2N (see data sheet 18325-70)
Description Lines bodies and standard Please refer to section “Hydraulic
Flow is blocked from 1 to 2 until pressure increases to meet assemblies integrated circuit” or consult factory
the selected valve setting, lifting the conical, pilot-stage MTTFd 150 years see data sheet 18350-51
poppet from its seat. This action exhausts oil above the main- Seal kit 3) Code: RG10A2010530100
stage piston (spool type), allowing it to shift and provide material no: R901111366
relief flow through 2 to tank. Pressure at 2 is additive to the Fluids Mineral-based or synthetics with
relief setting of the valve. lubricating properties
at viscosities of 10 to 500 mm /s (cSt)
2
Recommended degree of Nominal value max. 10µm (NAS 8) /
fluid contamination ISO 4406 19/17/14
Installation position No restrictions
Other Technical Data See data sheet 18350-50
1) Measured at 200 bar (2900 psi)
2) Standard version X=03 type
3) Only external seals for 10 valves
Characteristic curve

Pressure Δp

Flow Q

RE 18318-08/03.2016, Bosch Rexroth Oil Control S.p.A.

September 2023 edition General catalogue 615