RE 18320-78/03.2016, Bosch Rexroth Oil Control S.p.A.
Technical data
Max. operating pressure 350 bar (5000 psi)
Max. flow 160 l/min. (43 gpm)
Max. internal leakage
1)
200 cm
3
/min. (12 cu.in./min.)
Pilot displacement volume 1.61 cm
3
(0.10 cu.in.)
Fluid temperature range -30 to 100 °C (-22 to 212 °F)
Installation torque 108 - 122 Nm (80 - 90 ft-lbs)
Weight 0.67 kg (1.48 lbs)
Cavity CA-16A-3N (see data sheet 18325-70)
Lines bodies and standard
assemblies
Please refer to section “Hydraulic
integrated circuit” or consult factory
Seal kit
2)
Code: RG16A3010530100
material no: R930001178
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) Measured at 200 bar (2900 psi)
2) Only external seals for 10 valves
Description
Flow is blocked bi-directionally at 2 and 3 until pressure at
1 rises to overcome the spring bias against the spool. When
this bias pressure is surpassed, the spool shifts, allowing
flow from 2 to 3, or 3 to 2. The spring chamber is sealed and
vented to atmosphere, allowing consistent shifting with only
spring bias pressure independent of conditions at 2 or 3.
Directional spool type, direct acting,
external pilot external vent
Common cavity, Size 16
RE 18320-78
Edition: 03.2016
Replaces: 01.2010VDSC-16A 04.77.20 - X - 27 - Z
Characteristic curve
Flow Q
Pressure Δp
2
Bosch Rexroth Oil Control S.p.A., RE 18320-78/03.2016
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.
VDSC-16A | Directional spool type, direct acting
Dimensions [mm (inches)]
Type Material number
04772000270500A R930000927
04772000271100A R930000928
047720102705000 R930000956
047720102711000 R930000957
Type Material number
Dimensions
Ordering code
04.77.20 X 27 Z 00 *
Series 0/A to L
unchanged performances and dimensions
Directional spool type, direct acting
external pilot external vent
Version and options standard
SPRINGS
O-Ring on pilot piston
Std. setting
bar (psi)
00 No O-Ring
10 With O-Ring
05 5 (73) ± 20%
11 11 (160) ± 10%
27 Common cavity, Size 16
Preferred types
