1/2
VMSN-08A 04.75.21 - X - 56 - Z
Priority unloading pilot operated
Common cavity, Size 08
Flow is blocked from 2 to 3 until pressure increases to meet the
selected valve setting, lifting the small, pilot-stage poppet from its
seat. This action exhausts oil above the main-stage piston (spool
type), allowing it to shift fully and unload flow from 2 through 3 with
minimal pressure drop. Similarly, when remote pilot pressure at 1
exceeds the pressure setting, a secondary piston lifts the pilot-stage
poppet from its seat, again exhausting fluid from 2 through 3.
Technical data
Description
Performance
RE 18318-16/12.11
Replaces: RE 18318-16/09.09
Max. operating pressure
port 1-2
bar (psi) 350 (5000)
Max. pressure admitted
port 3
bar (psi) 50 (750)
Max. flow l/min. (gpm)
3 (1)
Max. internal
leakage (*)
drops/min.
15
Fluid temperature range °C (°F) -30 to 100 (-22 to 212)
Installation torque Nm (ft-lbs) 34-41 (25-30)
Weight kg (lbs) 0.14 (0.31)
Cavity
CA-08A-3N
see data sheet RE 18325-70
Seal kit (**)
code
material no.
RG08A3010520100
R930000861
Fluids
Mineral-based or synthetics
with lubricating properties at
viscosities of 10 to 500 mm
2
/s (cSt)
Filtration
Nominal value max. 10µm (NAS 8)
ISO 4406 19/17/14
Installation No restrictions
Other general technical data See data sheet RE 18350-50
(*) at 80% of pressure setting
(**) Only external seals for 10 valves
Type Material number
047521065603000 R901109763
047521065605000 R901109764
047521065610000 R901109765
047521065620000 R901109766
047521065635000 R901109767
Type Material number
2/2 Bosch Rexroth Oil Control S.p.A.
047521X56Z RE 18318-16/12.11
© 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.
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
cartridges@oilcontrol.com
www.boschrexroth.com
Dimensions
Ordering code
Series 0/A to L
unchanged performances and dimensions
Priority unloading pilot operated
Version and options standard
SPRINGS
Differential unload / reload
Adj. press. range
bar (psi)
Std. setting
bar (psi)
Q= 1 l/min
= 06 Re-seat at (66 ± 2.5) % of pressure setting
= 03
20-40 (290-580) 30 (435)
= 05
35-70 (500-1000) 50 (725)
Common cavity, Size 08
= 10
70-140 (1000-2000) 100 (1450)
= 20
105-210 (1500-3000) 200 (2900)
= 35
175-350 (2500-5000) 350 (5000)
04.75.21 X 56 Z 00 *
OPTION
Tamper resistant cap
ordering code 11.04.23.002
Mat. no. R930000752
Note: Special settings available. Contact factory
authorized representative for ordering code
Version with re-seat at (57±2.5)% of pressure
setting available by request, please consult factory.
