RE 18318-22/03.2016, Bosch Rexroth Oil Control S.p.A.
Technical data
Max. operating pressure
port 2 (P)
210 bar (3000 psi)
Max. pressure admitted
port 1 (T)
140 bar (2000 psi)
Max. flow 350 l/min (93 gpm)
Max. internal leakage
1)
15 drops/min.
Fluid temperature range -30 to 100 °C (-22 to 212 °F)
Installation torque 245 - 264 Nm (181 - 196 ft-lbs)
Weight 1.5 kg (3.3 lbs)
Special cavity 004 (see data sheet 18325-75)
Lines bodies and standard
assemblies
Please refer to section “Hydraulic
integrated circuit” or consult factory
Seal kit
2)
Code: RG004020520100
material no: R930001696
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
1) At 80% of pressure setting
2) Only external seals for 10 valves
Description
Flow is blocked from 2 to 1 until pressure increases to meet the
selected valve setting, lifting the poppet from its seat and allowing
relief flow through 1 to tank. Pressure at 1 is additive to the relief
setting of the valve. The combination of stable poppet design and
hardened seat provide excellent response, hysteresis and leakage
characteristics.
Relief, direct acting poppet type
differential area
Special cavity, 004
RE 18318-22
Edition: 03.2016
Replaces: 09.2009VSD-350 04.15.04 - X - 99 - Z
Characteristic curve
Flow Q
Pressure Δp
2
Bosch Rexroth Oil Control S.p.A., RE 18318-22/03.2016
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.
VSD-350 | Relief, direct acting poppet type
Dimensions [mm (inches)]
Ordering code
Type Material number
04150403990500A R930000377
04150403992000A R901113637
Type Material number
Dimensions
Leakproof hex. socket screw
04.15.04 X 99 Z 00 *
Series 0/A to L
unchanged performances and dimensions
Relief, direct acting poppet type
differential area
Version and options standard
SPRINGS
Adjustments
Adj. press. range
bar (psi)
Pressure increase
bar/turn (psi/turn)
Std. setting
bar (psi)
Q=5 l/min
03 Leakproof hex. socket screw
05 15-50 (220-725) 9 (131) 50 (725)
99 Special cavity, 004
20 80-210 (1160-3000) 37 (537) 200 (2900)
Preferred types
