RE 18320-19/07.2023, Bosch Rexroth Oil Control S.p.A.
Technical data
Max. operating pressure 420 bar (6000 psi)
Max. flow 240 l/min (63 gpm)
Max. internal leakage
1)
15 drops/min.
Fluid temperature range -30 to 100 °C (-22 to 212 °F)
Installation torque 200 - 215 Nm (148 - 159 ft-lbs)
Weight 0.8 kg (1.76 lbs)
MTTFD 150 years see RE 18350-51
Cavity SUN T-17A
Adjustment according to ISO 4413 with sealed
adjustment screw to prevent oil
leakage during adjustment
Salt spray test 500h according to DIN EN ISO
9227:2017-07
Lines bodies and standard
assemblies
Please refer to section “Hydraulic
integrated circuit” or consult factory
Seal kit
2)
Code: RG16U9020110100
material no: R930000995
Fluids Mineral-based or synthetics with
lubricating properties
at viscosities of 10 to 500 mm
2
/s (cSt)
Recommended degree of
fluid contamination
Nominal value max. 10µm (NAS 8) /
ISO 4406 19/17/14
Installation position No restrictions
Other Technical Data See data sheet 18350-50
Pressure setting: at least 1.3 times the load induced pressure and
maximum 1.5 times catalogue max nominal setting.
1) At 70% of pressure setting
2) Only external seals for 10 valves
Description
When pressure at 2 rises above the spring bias pressure,
the check seat is pushed away from the piston and flow is
allowed from 2 to 1. When load pressure at 1 rises above
the pressure setting (turn counterclockwise to increase
setting - turn clockwise to decrease setting), the direct-
acting, differential area relief function is activated and
flow is relieved from 1 to 2. With pilot pressure at 3, the
pressure setting is reduced in proportion to the stated ratio
of the valve, until fully open with free-flow from 1 to 2. Any
back-pressure at 2 is additive to the pressure setting in
all functions. Valve design prevents spring going solid and
complete unscrewing during adjusting.
Counterbalance, standard poppet type
differential area, counterclockwise adjustment
SUN cavity interchange, T-17A
RE 18320-19
Edition: 07.2023
Replaces: 01.2021
VBSN-16U-RS 04.52.45 - X - 47 - Z
Characteristic curve
Flow Q
Pressure Δp
2
Bosch Rexroth Oil Control S.p.A., RE 18320-19/07.2023
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-cv@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.
VBSN-16U-RS | Counterbalance, standard poppet type
Dimensions [mm (inches)]
Ordering code
Type Material number
04524503472000M R930081290
04524503474000M R930081291
04524510472000M R930081292
Type Material number
04524510474000M R930081293
04524542474000M R930081374
Dimensions
Turn adjustment clockwise to
decrease setting and release load
46 (1.81)
105.5 (4.15) max
107 (4.21) max
OPTION
Protection cap orange
Mat. no. R900168151
Tamper proof cap black
Mat. no. R930092782
Series M to Z
unchanged performances and dimensions
Counterbalance,
standard poppet type, differential
area, counterclockwise adjustment
00 Standard (Buna)
V0 Viton (FKM)
SPRINGS
Pilot ratio
Adj. press. range
bar (psi)
Pressure increase
bar/turn (psi/turn)
Std. setting
bar (psi)
cracking pressure
03 4:1 standard version
10 8:1 standard version
for
X= 03
20 70-280 (1000-4000) 80 (1160) 200 (2900)
42 2:1 with bleed through pilot
40 200-420 (2900-6000) 118 (1711) 350 (5000)
for
X= 10
20 70-280 (1000-4000) 49 (711) 200 (2900)
47 SUN cavity interchange, T-17A
40 200-420 (2900-6000) 77 (1117) 350 (5000)
for
X= 42
40 200-420 (2900-6000) 118 (1711) 350 (5000)
Preferred types
04.52.45 X 47 Z * *
Note: Special settings available with optional tamperproof cap.
Contact factory authorized representative for ordering code.
