Compact Motion Control Valves - Counterbalance Valves - Double acting

A-VBSO-DE-33-FC2

RE18308-04-01(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. For better safety and compact assembly, the C1 and C2 ports are gasket mounted directly on the actuator.

General:
Max. operating pressure:
  • 410 bar (5945 psi)
Max. flow:
  • 150 l/min. (40 gpm)
Weight:
  • 5.3 kg (11.7 lbs)
Manifold material:
  • Zinc plated steel
Flange seal kit ¹):
  • E00000000000012 (R930005945)
Fluid:
  • Mineral oil (HL, HLP) according DIN 51524
Fluid temperature range:
  • -30 °C to 100 (-22 to 212 °F)
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.
  • Note: ¹) Seals for 5 valves.
RE18308-04-02(2023-10-25)
RE18308-04-order(2023-10-25)

* The adjusting screw can be completely unscrewed. Do not exceed the indicated protrusion range of the adjusted screw.

RE18308-04-dim(2023-10-25)