Compact Motion Control Valves - Counterbalance Valves - Double acting

VBSO-DE

RE18307-63-01(2023-10-25)
Description

It provides static and dynamic control of load by regulating the flow IN and OUT of the actuator, through ports C1 and C2. This valve module includes 2 sections, each one composed by a check and a relief valve pilot assisted by pressure in the opposite line: the check section allows free flow into the actuator, then holds the load against reverse movement; with pilot pressure applied at the line across, the pressure setting of the relief is reduced in proportion to the stated ratio until opening and allowing controlled reverse flow. Back-pressure at V1 or V2 is additive to the pressure setting in all functions.

General:
Operating pressure:
  • up to 210 bar (3000 psi)
Max. flow:
  • see performance graph
Weight:
  • 1.4 kg (3.1 lbs)
Manifold material:
  • Note: Note: aluminium bodies are often strong enough for operating pressures exceeding 210 bar (3000 psi), depending from the fatigue life expected in the specific application. If in doubt, consult our Service Network.
  • Aluminium
Fluid:
  • Mineral oil (HL, HLP) according DIN 51524
Fluid temperature range:
  • -30 °C to 100 (-22 to 212 °F)
MTTFD:
  • 150 years see RE 18350-51
Viscosity range:
  • 5 to 800 mm²/s (cSt)
Recommended degree of fluid contamination:
  • Class 19/17/14 according to ISO 4406
Other technical data:
  • see data sheet 18350-50
Relief setting: at least 1.3 times the highest expected load.:
  • Note: Note: for applications outside these parameters, please consult us.
RE18307-63-02(2023-10-25)
RE18307-63-order(2023-10-25)
RE18307-63-dim(2023-10-25)