RE 18307-34/03.2016, Bosch Rexroth Oil Control S.p.A.
Description
When pressure at V2 rises above the spring bias pressure,
the check seat is pushed away from the piston and flow is
allowed from V2 to C2. When load pressure at C2 rises
above the pressure setting, the direct operated, differential
area, relief function is activated and flow is relieved from
C2 to V2. With pilot pressure at Pil, the pressure setting is
reduced in proportion to the stated ratio of the valve, until
opening and allowing flow from C2 to V2. The spring
chamber is drained to V2, and any back-pressure at V2 is
additive to the pressure setting in all functions.
Single counterbalance
RE 18307-34
Edition: 03.2016
Replaces: 04.2010A-VBSO-SE-78 08.35.20 - X - Y - Z
Technical data
Max. operating pressure 350 bar (5000 psi)
Max. flow 40 l/min. (11 gpm)
Weight 0.76 kg (1.68 lbs)
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 load induced pressure.
Note: for applications outside these parameters, please consult us.
Characteristic curve
Flow Q
Pressure Δp
2
Bosch Rexroth Oil Control S.p.A., RE 18307-34/03.2016
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-SE-78 | Single counterbalance
Dimensions [mm (inches)]
Dimensions
Type Material number
083520030935000 R930003051
Type Material number
08.35.20 X Y Z
Ordering code
Single counterbalance
SPRINGS
Adj. pressure
range
bar (psi)
Pres. increase
bar/turn
(psi/turn)
Std. setting
Q=5 (l/min)
bar (psi)
Pilot ratio
03 4.1 : 1
35
200-350
(2900-5000)
175
(2538)
350
(5000)
Port sizes V2 - C2 Pil
09 G 1/4 G 1/4
Preferred types
Tamper resistant cap code
ordering code 11.04.23.002
Mat. no. R930000752
