Hydraulics
B27
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Proportional Pressure Reducing Valves
Catalog HY14-2550/US
DWE-DWU.p65, dd, an
B
General Description
The DWE/DWU series proportional pressure reducing
valves have a proportional solenoid operated pilot
stage and sliding spool main stage.
Valves are controlled by off-board electronic driver
modules. Refer to the electronics section for optional
driver configurations.
Features
•
Standard DIN/ISO interfaces.
•
Optional reverse flow check valve.
Technical Information Series DWE and DWU
AB
AB
Series DWE Series DWU
with Bypass
Check Valve
A
BY
Specifications
Interface DIN NG10 NG25 NG32
ISO/CETOP 05 08 10
Nominal Flow Q LPM (GPM) 150 (40) 250 (66) 350 (93)
Weight kg (lbs.) 5.2 (11.5) 6.3 (13.9) 9.3 (20.5)
Maximum
Operating Pressure Bar (PSI) Pressure port P, A: 350 (5075); Tank connection Y: not pressurized
Adjustment Range Bar (PSI) 10 to 350 (150 to 5075)
Mounting Pattern DIN 24340 Form D, ISO 5781 and ISO 6264
Mounting Orientation Any
AB
AB
Series DWE
Series DWU with Bypass Check Valve
Hydraulics
B28
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Proportional Pressure Reducing Valves
Catalog HY14-2550/US
DWE-DWU.p65, dd, an
B
Technical Information
Series DWE and DWU
Performance Curve
DWU SymbolDWU Functional Diagram
Electronic Modules
Refer to the Electronics Section for more informationon
the following electronic driver modules:
ED00101
ED00102
ED00104
ED00105
0
50725
1001450
1502175
2002900
250
3625
3004350
3505075
Control/Secondary Pressure
Bar
PSI
Bar
PSI
Supply/Primary Pressure
DWE and DWU Performance
0
10050
1450725
200150
29002175
350300
250
507543503625
Constant
Command
Signal
(Typical)
A
B
Y
1bar
AB Y
*) DWE functional diagram and symbol are the same as DWU without check valve as shown.
Hydraulics
B29
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Proportional Pressure Reducing Valves
Catalog HY14-2550/US
DWE-DWU.p65, dd, an
B
Dimensions
DWE, DWU, Size NG10
Inch equivalents for millimeter dimensions are shown in (**)
DWE, DWU, Size NG25
Inch equivalents for millimeter dimensions are shown in (**)
Series DWE and DWU
197.0
(7.76)
172.0
(6.77)
AB
Y
Y
1cm
R.S.BSc
Zly1
Zly2
A B
M10
M10
42.8
(1.69)
50.0
(1.97)
66.7
(2.63)
11.0
(0.43)
88.0
(3.46)
36.0
(1.42)
45.3
(1.78)
79.4
(3.13)
60.3
(2.37)
18.4
(0.72)
11.0
(0.43)
212.0
(8.35)
172.0
(6.77)
AB
100.0
(3.94)
32.0
(1.26)
Hydraulics
B30
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Proportional Pressure Reducing Valves
Catalog HY14-2550/US
DWE-DWU.p65, dd, an
B
Mounting Pattern
Dimensions
Series DWE and DWU
DWE, DWU, Size NG32
Inch equivalents for millimeter dimensions are shown in (**)
42.0
(1.65)
42.0
(1.65)
23.0
(0.91)
47.0
(1.85)
96.8
(3.81)
~235.0
(9.25)
~187.0
(7.36)
AB
11.0
(0.43)
119.0
(4.69)
35.0
(1.38)
Nominal d1 d2 d3 d4 b1 b2
Size max. ±0.2 H12 min. max.
10 mm 14.7 M10 4.8 7.5 84.0 92.0
inches (0.58) M10 (0.19) (0.30) (3.31) (3.62)
25 mm 23.4 M10 4.8 7.5 97.0 105.0
inches (0.92) M10 (0.19) (0.30) (3.82) (4.31)
32 mm 32.0 M10 4.8 7.5 114.0 122
inches (1.26) M10 (0.19) (0.30) (4.49) (4.80)
Nominal m1 m2 m3 m4 m5 m6
Size ±0.2 ±0.2 ±0.2 ±0.2 ±0.2 ±0.2
10 mm 42.9 35.7 31.8 21.4 – 21.4
inches (1.69) (1.41) (1.25) (0.84) – (0.84)
25 mm 60.3 49.2 44.5 39.7 – 20.6
inches (2.37) (1.94) (1.75) (1.56) – (0.81)
32 mm 84.1 67.5 62.7 59.6 42.1 24.6
inches (3.31) (2.66) (2.47) (2.35) 1.66 (0.97)
Nominal m7 m8 n1 n2 n3 n4
Size min. min. ±0.2 ±0.2 ±0.2 ±0.2
10 mm 7.1 61.0 66.7 58.7 33.3 7.9
inches (0.28) (2.40) (2.63) (2.31) (1.31) (0.31)
25 mm 11.1 78.0 79.4 73.0 39.7 6.4
inches (0.44) (3.07) (3.13) (2.87) (1.56) (0.25)
32 mm 16.7 102.0 96.8 92.9 48.8 4.0
inches (0.66) (4.02) (3.81) (3.66) (1.92) (0.16)
Hydraulics
B31
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Proportional Pressure Reducing Valves
Catalog HY14-2550/US
DWE-DWU.p65, dd, an
B
Ordering Information
DW
Pressure
Range
Design
Proportional
Pressure
Reducing Valve
Serial
Letter
OptionSeal
Series
E
Valve Size
and Interface
Code Description
Omit Nitrile
V Fluorocarbon
527
Solenoid
Connection
Weight: NG10 5.2 kg (11.5 lbs.)
NG25 6.3 kg (13.9 lbs.)
NG32 9.3 kg (20.5 lbs.)
Code Description
E Without Bypass
Check Valve
U With Bypass
Check Valve
Code Description
Omit Standard
U Quick Pressure
Unloading
Code Description
F With Connector
DIN 43650
Design Type
AF/PG11
Omit With Socket
Connector
without plug
Series DWE and DWU
Not
required
for ordering
Design
Series
Bolt Tightening Sealing Kits
Nominal (Quantity) Torque
Code Size Subplate Bolt Kit Size (Nm) Nitrile Fluorocarbon
P15 NG10 SPP3M4B910 BK389 (4x) M10x50 65 SK-DWEE 5P15 SK-DWLC 5P15V
P20 NG25 SPP6M8B910 BK485 (4x) M10x45 65 SK-DWEE 5P20 SK-DWLC 5P20V
P40 NG32 SPP10M12B910 BK388 (6x) M10x50 65 SK-DWEE 5P40 SK-DWLC 5P40V
Accessories
Code Description
B 70 Bar (1015 PSI)
E 175 Bar (2537 PSI)
G 250 Bar (3625 PSI)
K 350 Bar (5075 PSI)
Code Description
P15 NG10/CETOP 5
P20 NG25/CETOP 8
P40 NG32/CETOP 10
16 volts;
1.2 amps
LA
