Cartridge Valves - Directional Control Valves - Check

VUCN-04A

RE18318-88-01(2023-11-07)
Description

When pressure at 1 rises above the spring bias pressure, the poppet is lifted and flow allowed from 1 to 2. The valve is closed (checked) from 2 to 1. Precision machining and hardening processes allow virtually leak-free performance in the checked condition.

¹ Only external seals for 10 valves

General:
Max. operating pressure:
  • 350 bar (5000 psi)
Max. flow:
  • 4 l/min (1 gpm)
Max. internal leakage:
  • 5 drops/min.
Fluid temperature range:
  • -30 to 100 °C (-22 to 212 °F)
Installation torque:
  • 10 - 12 Nm (7 - 9 ft-lbs)
Weight:
  • 0.013 kg (0.03 lbs)
Special cavity:
  • CA-04A-2N (see data sheet 18325-75)
Lines bodies and standard assemblies:
  • Please refer to section “Hydraulic integrated circuit” or consult factory
Seal kit1):
  • Code: RG04S2010520100
  • material no: R930003786
Fluids:
  • Mineral-based or synthetics with lubricating properties at viscosities of 5 to 800 mm2/s (cSt)
Recommended degree of fluid contamination:
  • Nominal value max. 10µm (NAS 8) / ISO 4406 20/18/15
Installation position:
  • No restrictions
Other Technical Data:
  • See data sheet 18350-50
RE18318-88-02(2023-11-07)
RE18318-88-ord(2023-11-07)
RE18318-88-dim(2023-11-07)