RE 18307-72/03.2016, Bosch Rexroth Oil Control S.p.A.
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.
Dual counterbalance
RE 18307-72
Edition: 03.2016
Replaces: 07.2012A-VBSO-DE-30-PI 08.48.11 - X - Y - Z
Characteristic curve
Flow Q
Pressure Δp
Technical data
Max. operating pressure 410 bar (5945 psi)
Max. flow 60 l/min. (16 gpm)
Weight see “Dimensions”
Manifold material Zinc plated steel
Fluid Mineral oil (HL, HLP) according
DIN 51524
Fluid temperature range -30 °C to 100 (-22 to 212 °F)
Viscosity range 5 to 800 mm
2
/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: for applications outside these parameters, please consult us.
2
Bosch Rexroth Oil Control S.p.A., RE 18307-72/03.2016
Bosch Rexroth Oil Control S.p.A.
Via Leonardo da Vinci 5
P.O. Box no. 5
41015 Nonantola – Modena, Italy
Tel. +39 059 887 611
Fax +39 059 547 848
compact-hydraulics-pib@boschrexroth.com
www.boschrexroth.com/compacthydraulics
© This document, as well as the data, specifications and other information set
forth in it, are the exclusive property of Bosch Rexroth Oil Control S.p.a.. It
may not be reproduced or given to third parties without its consent. The data
specified above only serve to describe the product. No statements concerning
a certain condition or suitability for a certain application can be derived from
our information. The information given does not release the user from the
obligation of own judgment and verification. It must be remembered that our
products are subject to a natural process of wear and aging. Subject to change.
A-VBSO-DE-30-PI | Dual counterbalance
Dimensions [mm (inches)]
Dimensions
Type Material number
084811030220000 R930006936
084811030235000 R930006445
Type Material number
084811030320000 R930006817
084811030335000 R930006818
Ordering code
08.48.11 X Y Z
Dual counterbalance
SPRINGS
Adj. pressure
range
bar (psi)
Pres. increase
bar/turn
(psi/turn)
Std. setting
Q=5 (l/min)
bar (psi)
Pilot ratio
03 4.2 : 1
20
60-210
(870-3000)
63
(914)
200
(2900)
35
180-350
(2610-5000)
138
(2001)
350
(5000)
Pressure setting up to 410 bar: code on request.
Port sizes V1 - V2 C1 - C2
02 G 3/8
G 3/8
03 G 1/2
G 1/2
Preferred types
Tamper resistant cap code
ordering code 11.04.23.002
Mat. no. R930000752
