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Pressure Reducing Valve
Spool Type, Direct-Acting
Metric Cartridge – 500 bar
DMVE
Up to 30 l/min
Up to 500 bar
The pressure reducing valve DMVE is a
direct-acting, spring-loaded spool valve. Its
function is to maintain a constant pressure
at the consumer.
In the normal position, pressure port 2
is connected to consumer port 1. The
pressure build-up at the consumer acts on
the face of the control piston and moves it
upwards against the set spring force.
Therefore the inow is throttled at port
2 just enough to satisfy the consumer's
demand - without pressure increase.
There is an additional function of outlet
pressure relief: if the pressure across
consumer port 1 rises above the control
pressure due to external force, the control
piston is pushed further against the spring
and relieves the consumer to tank port 3.
FEATURES
z Excellent dynamic performance
z Hardened and ground valve components to ensure minimal wear and extended
service life
z Low pressure drop by CFD optimized ow path
z Low hysteresis and excellent stability throughout the ow range
FUNCTION
SPECIFICATIONS
Operating pressure: max. 500 bar (port 2)
Nominal ow: 30 l/min (pressure-dependent -
> 350 bar = 6 l/min)
Pressure ranges: 50 bar
140 bar
Media operating temperature range: min. -20 °C to max. +120 °C
Ambient temperature range: min. -20 °C to max. +120 °C
Operating uid: Hydraulic oil to DIN 51524 Part 1 and 2
Viscosity range: min. 2.8 mm²/s to max. 380 mm²/s
Filtration: Class 21/19/16 according to ISO 4406 or
cleaner
MTTF
d
: 150 years (see "Conditions and
instructions for valves" in brochure 5.300)
Installation: no orientation restrictions
Materials: Valve body: high tensile steel
Piston: hardened and
ground steel
Seals: FKM (standard)
NBR (optional, media
temperature range
-30 °C to +100 °C)
Back-up rings: PTFE
Cavity: 08030
Weight: 0.23 to 0.45 kg, depending on model
Adjustment device
Valve body
Spring
Control piston
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MODEL CODE
DMVE – G1/2 – 01 X – 140 V 40
Basic model
Pressure reducing valve
Size
G 1/2
Type
01 = standard
Series
(to be determined by manufacturer)
Pressure setting range
50 = to 50 bar
140 = to 140 bar
Type of adjustment
V = Allen head
Other adjustment types on request
Outlet pressure setting
No details = valve not set, spring relaxed
40 = factory pre-set cracking pressure in bar
Setting on request
Standard models
Model code Part No.
DMVE-G1/2-01X-50V 710254
DMVE-G1/2-01X-140V 710250
Standard in-line bodies
Code Part No. Material Ports Pressure
R08030-01X-01 283025 Steel, zinc-plated G3/8 420 bar
Seal kits
Code Material Part No.
SEAL KIT DMVE-G1/2-... FKM 715873
PERFORMANCE
Inlet pressure p [bar]
Permitted ow rate from 1 to 2
(free return ow)
p1 = outlet pressure setting
p1 > 50 bar... 30 l/min
p1
≤ 50 bar... see curve
Q [l/min]
Pressure drop, dependent on ow rate
DMVE-G1/2-01X-50
permitted
not permitted
DMVE-G1/2-01X-140
permitted
not permitted
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Millimeter
Subject to technical modications
CAVITY
08030
Millimeter
Subject to technical modications
Form tools
Tool Part No.
Countersink 174665
Reamer 169962
Tap 1002667
DIMENSIONS
DMVE-G1/2-01X-50
DMVE-G1/2-01X-140
(relieving)
(relieving)
(reducing)
(reducing)
Type A
max
B
max
SW 1 SW 2
DMVE-G1/2-01X–50 80 99 5 8
DMVE-G1/2-01X–140 110 134 10 17
SW 1
SW 2
SW 24
torque
20
+5
Nm
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 modications.
tting depth
tting depth
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