RE 18319-40/03.2016, Bosch Rexroth Oil Control S.p.A.
Technical data
Max. operating pressure 350 bar (5000 psi)
Max. flow 120 l/min. (32 gpm)
Pilot ratio 3.2:1
Max. internal leakage 5 drops/min.
Fluid temperature range -30 to 100 °C (-22 to 212 °F)
Installation torque 60 - 70 Nm (44 - 52 ft-lbs)
Weight 0.25 kg (0.55 lbs)
Cavity SUN T-2A
Lines bodies and standard
assemblies
Please refer to section “Hydraulic
integrated circuit” or consult factory
Seal kit
1)
Code: RG12U9020110100
material no: R930005599
Fluids Mineral-based or synthetics with
lubricating properties
at viscosities of 5 to 800 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
1) Only external seals for 10 valves
Description
When pressure at 2 rises above the spring bias pressure, the
poppet is pushed from its seat and flow is allowed from 2 to
1. The valve is normally closed (checked) from 1 to 2. When
sufficient pilot pressure is present at port 3, the pilot piston
acts to push the poppet from its seat and flow is allowed from
1 to 2. Precision machining and hardening processes allow
virtually leak-free performance in the checked condition.
Pilot operated check,
pilot to open
SUN cavity interchange, T-2A
RE 18319-40
Edition: 03.2016
Replaces:09.2009VSON-12U 04.33.07 - X - 86 - Z
Characteristic curve
Flow Q
Pressure Δp
2
Bosch Rexroth Oil Control S.p.A., RE 18319-40/03.2016
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-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.
VSON-12U | Pilot operated check, pilot to open
Dimensions [mm (inches)]
Type Material number
04330700860000A R901106638
04330710860000A R901106639
Type Material number
043307008605000 R930054250
043307108605000 R930054274
Dimensions
Ordering code
04.33.07 X 86 Z 00 *
Series 0/A to L
unchanged performances and dimensions
Pilot operated check, pilot to open
Version and options standard
SPRINGS
O-Ring on pilot piston
Cracking pressure
bar (psi)
00 No O-Ring
00 2 (30)
10 With O-Ring
05 5 (73)
86 SUN cavity interchange, SUN T-2A
Preferred types
