Hydraulics
C5
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Cartridge Valves – Electric Unloading Relief
Catalog HY14-3201/US
DSM.p65, dd, an
C
Technical Information Series DSM
Performance Curves
Specifications
General Description
The DSM series is a pilot operated pressure relief
valve with an electrical unloading function. The unload-
ing of the main stage (poppet) can be achieved with a
normally open pilot valve (symbol A, code 10) or with a
normally closed pilot valve (symbol B, code 11). The
cartridge valves are supplied complete with cover unit
and pilot valve for installation in a manifold cavity
according to DIN 24342.
Switch
Code 11
Switch
Code 10
Electric Data
for Standard Solenoid Voltages
Solenoid Solenoid
Solenoid Voltage Power Current
Code (±10%) in W in A
N 12VDC 30 2.5
P 24VDC 30 1.25
V 98V *** 30 0.3
W 198V *** 30 0.15
B
A
B
A
3
Y
X
B
A
2
1
0
0
100 15050
58 4
116 8
174
12
232
PSI
16
Bar
Q(%)
nom
Pressure Drop p∆
Minimum Pressure
(Minimum Setting)
Pressure Override
0 25 50 75 100
Nominal Volume Flow (%)
0
1450
725
100
50
2175 150
2900
200
3625 250
4350
5075
PSI
300
350
Bar
Pressure p
Nominal Size 16 25 32 40 50 63
Nominal LPM 220 500 950 1400 2300 4000
Flow Q* (GPM) (58) (132) (251) (370) (609) (1058)
Setting up to 70 Bar (1015 PSI),
Pressure up to 175 Bar (2538 PSI),
Ranges up to 250 Bar (3625 PSI),
up to 350 Bar (5075 PSI)
Pressure Drop see flow curve
Maximum
Operating ports A, B, X = 350 Bar (5075 PSI)
Pressure ** Y = 100 Bar (1450 PSI)
Poppet Type C1
Mounting
Dimension according to DIN 24342
Mounting
Position any position
* at 8 Bar (116PSI) ∆p
** Any pressure at Y port is additive to the valve setting
*** For use with 110VAC and 220VAC applications (DC rectified
connector option “H”)
Standard Orifices
Orifice NG 16 NG 25 NG 32 NG 40 NG 50 NG 63
No. 1 Ø1.1 Ø1.3 Ø1.4 Ø1.5 Ø1.6 Ø1.7
M5 M5 M5 M5 M6 M6
No. 2 Ø0.9 Ø1.1 Ø1.2 Ø1.3 Ø1.4 Ø1.5
1/16* 1/16* 1/16* 1/16* 1/16* 1/16*
No. 3 Ø1.3 Ø1.5 Ø1.7 Ø1.8 Ø2.0 Ø2.2
M5 M6 M6 M6 M8 M8
Orifice diameter in mm
*Thread type in NPT
2
Y
T
A
A
C
B
1
b
b
Switch
Code 11
Switch
Code 10
Hydraulics
C6
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Cartridge Valves – Electric Unloading Relief
Catalog HY14-3201/US
DSM.p65, dd, an
C
Dimensions Series DSM
123 (D.C. Solenoid)
(4.84)
46
(1.81)
Y
X
B
t2
L
max
A
H
∅
∅
d2
d1
44
(1.73)
b1
Nominal Size 16 25 32 40 50 63
H 177 (6.97) 181 (7.13) 186 (7.32) 196 (7.72) 231 (9.09) 246 (9.69)
b1 79 (3.11) ** 85 (3.35) 102 (4.02) 125 (4.92) 140 (5.51) 180 (7.09)
d1 H7 32 (1.26) 45 (1.77) 60 (2.36) 75 (2.95) 90 (1.96) 120 (4.72)
d2 H7 25 (0.98) 34 (1.34) 45 (1.77) 55 (2.17) 68 (2.68) 90 (3.54)
t2 +0.1 56 (2.20) 72 (2.83) 85 (3.35) 105 (4.13) 122 (4.80) 155 (6.10)
Lmax v2* 171(6.73) 169 (6.65) 174 (6.85) 186 (7.32) 194 (7.64) 241 (8.43)
Lmax v5* 171(6.73) 169 (6.65) 174 (6.85) 186 (7.32) 194 (7.64) 214 (8.43)
Lmax v9* 160 (6.30) 155 (6.10) 163 (6.42) 175 (6.89) 182 (7.17) 202 (7.95)
Lmax v61* 192 (7.56) 187 (7.36) 195 (7.68) 207 (8.15) 214 (8.43) 234 (9.21)
*See ordering information: adjustment type
**Width 65mm (2.56 in)
Inch equivalents for millimeter dimensions are shown in (**)
Dimensional drawing corresponds to cartridge valve of series: DSM - NG 16 to NG 40
Hydraulics
C7
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Cartridge Valves – Electric Unloading Relief
Catalog HY14-3201/US
DSM.p65, dd, an
C
Ordering Information Series DSM
Nominal
Size
Pressure
Range
Serial
Letter*
Design
Series
Poppet
Type
C1
Adjustment
Type
Seals Insert
Cartridge
Valve
1DSM E
*Valves already in the market may
contain a different serial letter. As
far as dimensions and technical
aspects are concerned, they are
identical and can be interchanged.
Please keep this
in mind when identifying the
products.
Seal Kits
Nominal Compound: Compound:
Size Nitrile Fluorocarbon
16 SK-DSMB10-E16 SK-DSMB10-E16V
25 SK-DSMB10-E25 SK-DSMB10-E25V
32 SK-DSMB10-E32 SK-DSMB10-E32V
40 SK-DSMB10-E40 SK-DSMB10-E40V
50 SK-DSMB10-E50 SK-DSMB10-E50V
63 SK-DSMB10-E63 SK-DSMB10-E63V
Code Description
Omit Nitrile
V Fluorocarbon
10
N
Code Description
B Adjustable up to 70 Bar (1015 PSI)
E Adjustable up to 175 Bar (2538 PSI)
G Adjustable up to 250 Bar (3625 PSI)
K Adjustable up to 350 Bar (5075 PSI)
Code Size
16 16
25 25
32 32
40 40
50 50
63 63
Accessories
Weight
Nominal Size 16 25 32 40 50 63
Weight kgs 4.0 5.0 6.7 9.7 15.5 24.7
(lbs) (8.8) (11.0) (14.8) (21.4) (34.2) (54.5)
Solenoid
Solenoid
Connection
Switch
Type
Code Description
2 Hexagon socket
screw with locknut
5 Knob with ratchet
9 Same as Code 2,
with nut cover cap
61 Knob with E10 lock
Code Description
Omit No plug
With plug DIN
F 43650 design
type AF/PG11
H Plug with rectifier
Pressure
Relief Valve
with Electric
Unloading
Bolt Kits
Nominal Bolt Part Torque
Size Dimensions Number Nm
16 (4) M8 x 40 BK414 33 Nm
(4) 5/16-18 x 1.5 BK84 24 ft-lbs
25 (4) M12 x 50 BK391 115 Nm
(4) 1/2-13 x 2.0 BK77 84 ft-lbs
32 (4) M16 x 55 BK415 281 Nm
(4) 5/8-11 x 2.25 BK85 207 ft-lbs
40 (4) M20 x 70 BK416 553 Nm
(4) 3/4-10 x 2.75 BK86 408 ft-lbs
50 (4) M20 x 75 BK417 553 Nm
(4) 3/4-10 x 3 BK87 408 ft-lbs
63 (4) M30 x 100 BK418 1910 Nm
(4) 1 1/4-7 x 4.0 BK88 1408 ft-lbs
Code Description
N 12VDC
P 24VDC
V 98VDC **
W 198VDC ***
** 110VAC application
with Rectifier Plug
*** 220VAC application
with Rectifier Plug
Code Description Symbol
Pressure unloaded
10 when solenoid
is not energized
Pressure unloaded
11 when solenoid
is energized
B
A
B
A
B
