Pressure Compensator,
Spool Valve,
Direct-Operated, Normally Open
Cartridge Valve - 250 bar
DWY12130
up to 130 l/min
up to 250 bar
The pressure compensator DWY12130 is
a direct-operated, spring-loaded flow
control valve, which is normally open.
By maintaining a constant differential
between inlet and outlet pressure of an
orifice (ports 1 and 3 of the pressure
compensator) a constant flow rate is
maintained (independently of the load
pressure). As soon as the pressure
differential exceeds the value pre-set by
the spring force the control piston
reduces an orifice cross-section.
The pressure compensator can, for
example, be used when lowering variable
loads at the same velocity. Together with
a proportional flow control valve it can be
used as a 2-way flow regulator.
In load sensing circuits in which actuators
are operated in parallel, each one can be
individually speed-controlled.
GENERAL
z Used to control the flow rate of actuators independently of the pressure
z Models for two different control pressure differentials and for flow rates of up to
max. 130 l/min
z Excellent stability throughout flow range
z All surfaces zinc-plated and corrosion-proof
z All valve parts made of high strength steel with hardened and ground
components to ensure minimal wear and to extend service-life
z Rigid design using one-piece body minimizes the effect of eccentricities in cavity
and maximizes reliability
z Reliable operation due to integral stroke limitation
FUNCTION
SPECIFICATIONS
Operating pressure: max. 250 bar
Flow rate: max. 130 l/min
Control accuracy: +/- 10 %
Temperature range of operating fluid: min. -20 °C to max. +80 °C
Ambient temperature range: min. -20 °C to max. +80 °C
Operating fluid: Hydraulic oil to DIN 51524 Part 1 and 2
Viscosity range: 10 mm²/s to max. 420 mm²/s
recommended
Filtration: Permissible contamination level of the
operating fluid to ISO 4406
class 21/19/16 or cleaner
Mounting position: Optional
Materials: valve body: high-strength steel
spool: hardened and ground
steel
seals: FKM
back-up rings: PTFE
Cavity: metric 12130
Weight: 0.35 kg
E 5.192.1/02.07
DW Y 12130 - 01 X - 15
Designation
Pressure compensator
Function code
Y = Normally open
Cavity to ISO
Type
01 = standard
Series
(determined by manufacturer)
Control pressure differential
15 = 15 bar differential pressure, up to 90 l/min
22 = 22 bar differential pressure, up to 130 l/min
DIMENSIONS
Millimetre
Subject to technical modifications
CAVITY
metric 12130
SW 32 hex
Torque 70
+10
NM
FLOW GRAPH
DWY12130-01X-15
Measured at 44 mm²/s, T
Oil
= 40 °C
HYDAC Fluidtechnik GmbH
Justus-von-Liebig-Str.
D-66280 Sulzbach/Saar
Tel: 0 68 97 /509-01
Telefax. 0 68 97 /509-598
E-Mail: flutec@hydac.com
Note
The information in this brochure relates to the
operating conditions and applications
described.
For applications or operating conditions not
described, please contact the relevant
technical department.
Subject to technical modifications.
Standard models
Model code Stock no.
DWY12130-01X-15 554334
DWY12130-01X-22 557576
fitting depth
fitting depth
MODEL CODE
Q [l/min] from 3 to 2
Orifice diameter [mm]
Q [l/min] from 3 to 2
Orifice diameter [mm]
DWY12130-01X-22
Measured at 33 mm²/s, T
Oil
= 46 °C
Millimetre
Subject to technical modifications
70.5
2.5
27.5
23.9
E 5.192.1/02.07
