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Pressure Compensator,
Downstream
Spool Valve,
Direct Acting, Normally Open
Metric Cartridge – 250 bar
DWM12130Y
Up to 130 l/min
Up to 250 bar
The pressure compensator DWM12130Y
is a normally open, direct-acting, spring
loaded ow control valve.
By maintaining a constant differential
between inlet and outlet pressure of an
orice (ports 1 and 3 of the pressure
compensator), a constant ow 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 orice cross-section. The pressure
compensator can, for example, be used
when lowering variable loads at the same
velocity. Together with a proportional ow
control valve it can be used as a 2-way
proportional ow regulator.
In a load sensing system in which several
consumers are operated in parallel, each
one can be individually speed-controlled.
Features
z Used to control the ow rate of consumers independently of the load pressure
z Versions for two different control pressure differentials and for ow rates up to
max. 130 l/min
z Excellent stability throughout pressure and ow range
z Excellent dynamic performance
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 extended 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
Nominal ow: max. 130 l/min
Control accuracy +/- 10%
Media operating temperature range: min. -20 °C to max. +80 °C
Ambient temperature range: min. -20 °C to max. +80 °C
Fluid: Hydraulic oil to DIN 51524 Part 1 + 2
Viscosity: min. 10 mm²/s to max. 420 mm²/s
Filtration: Class 21/19/16 to ISO 4406
or cleaner
MTTF
d
: 150 years
Installation: No orientation restrictions
Materials: Valve body: high tensile steel
Piston: hardened and ground steel
Seals: FKM
Back-up rings: PTFE
Cavity: Metric 12130
Weight: 0.35 kg
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Model code
DWM 12130 Y – 21 – C – V – 15
Basic model
Pressure compensator
Cavity to ISO
Function symbol
Y = downstream pressure compensator
Type
21 = standard, without damping
22 = standard, with damping
Body and ports*
C = cartridge only
Versions with bodies on request
Seals
V = FPM (standard)
Control pressure differential
15 = 15 bar differential pressure, up to 90 l/min
22 = 22 bar differential pressure, up to 130 l/min
diMensions
Millimeter
Subject to technical modications.
cavity
Metric 12130
hex SW32
torque 70
+10
Nm
PerForMance
DWM12130Y-...-C-V-15
Measured at n = 44 mm²/s, T
oil
= 40 °C
HYDAC Fluidtechnik GmbH
Justus-von-Liebig-Str.
D-66280 Sulzbach/Saar
Tel: 0 68 97 /509-01
Fax: 0 68 97 /509-598
E-Mail: utec@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 modications.
Standard models
Model code Part No.
DWM12130Y-21-C-V-15 554334
DWM12130Y-21-C-V-22 557576
*
Standard line bodies
Code Part No. Material Ports Pressure
R12130 3305489 steel, zinc plated ¾ BSP 420 bar
tting depth
tting depth
Flow [l/min] from 3 → 2
Orice diameter [mm]
Flow [l/min] from 3 to 2
Orice diameter [mm]
DWM12130Y-...-C-V-22
Measured at n = 33 mm²/s, T
oil
= 46 °C
Millimeter
Subject to technical modications.
Cartridge form tools
Tools Part No.
Countersink In preparation
Reamer In preparation
