Cartridge Valves - Pressure Control Valves - Pressure relief

VSPY-10A

RE18318-12-01(2023-11-23)
Description

Flow is blocked from 1 to 2 until pressure increases to meet the selected valve setting, lifting the conical, pilot-stage poppet from its seat. This action exhausts oil above the main-stage piston (spool type), allowing it to shift and provide relief flow through 2 to tank. The spring chamber is drained to tank at 3 allowing a consistent relief setting independent of back-pressure at 2.

¹) Measured at 200 bar (2900 psi)

²) Only external seals for 10 valves

General
Max. operating pressure port 1 (P) and 2 (T):
  • 420 bar (6000 psi)
Max. pressure admitted port 3 (Y):
  • 140 bar (2000 psi)
Flow range:
  • 3 - 120 l/min (1 - 32 gpm)
Max. internal leakage¹):
  • 200 cm³/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:
  • 0.21 kg (0.46 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 kit²):
  • Code: RG10A3010520100
  • material no: R901111369
Fluids:
  • Mineral-based or synthetics with lubricating properties at viscosities of 10 to 500 mm²/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
RE18318-12-02(2023-11-23)
RE18318-12-order(2023-11-23)
RE18318-12-dim(2023-11-23)