41 600/117 ED
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41 600/117 ED
OPERATING PRINCIPLE
DSH
*
LEVER OPERATED
DIRECTIONAL CONTROL VALVE
— The DSH
*
are lever operated directional control valves,
available with 3 or 4 ways and with several types of
interchangeable spools (1).
— The valve body (2) is made with high strength iron
castings provided with wide internal passages in order to
minimize the flow pressure drop.
— They are available with 2 or 3 positions with return spring
or mechanical retention.
— On DSH3 version is possible to rotate the lever (3) by
180° compared with the standard position, depending on
installation requirements (par. 7).
MOUNTING SURFACES
DSH3 ISO 4401-03
DSH5 ISO 4401-05
p max (see performances table)
Q nom (see performances table)
DSH3 DSH5
Ma
xi
m
um
worki
ng
pre
ssu
re:
- P - A - B ports
-
T
p
o
rt
bar
350
210
320
160
No
m
i
n
a
l
f
lo
w
ra
t
e
l/min
75
150
Am
b
i
e
n
t
te
m
pe
rat
ure
ra
n
g
e
°C
-20 / +60
Flu
id
t
em
p
e
rat
ure ra
n
ge
°C -20 / +80
Flu
id
vi
scosi
t
y ra
n
ge
cSt
10 ÷ 400
Fluid contamination degree
according to ISO 4406:1999 class 20/18/15
Recommended viscosity
cSt
25
Mass
kg 1.3
4.2
PERFORMANCES (with mineral oil of viscosity of 36 cSt at 50°C)
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DSH*
2 - SPOOL TYPE
1 - IDENTIFICATION CODE
Lever operated
Size:
3 = ISO 4401-03
5 = ISO 4401-05
Spool type (see par. 2)
S* SK* SA* SAK*
TA TAK
TA23 TAK23
Seals:
N = NBR seals for mineral oil (standard)
V = FPM seals for special fluids
Series No.:
11 for DSH3 (the overall and mounting dimensions
remain unchanged from 10 to 19)
30 for DSH5 (the overall and mounting dimensions
remain unchanged from 30 to 39)
Directional control valve
with spool
D S H - /
3 - HYDRAULIC FLUIDS
Use mineral oil-based hydraulic fluids HL or HM type, according to ISO 6743-4. For these fluids, use NBR seals (code N). For fluids HFDR type
(phosphate esters) use FPM seals (code V). For the use of other fluid types such as HFA, HFB, HFC, please consult our technical department.
Using fluids at temperatures higher than 80 °C causes a faster degradation of the fluid and of the seals characteristics. The fluid must be
preserved in its physical and chemical characteristics.
NOTE:
On request it is possible to have the lever mounted in different positions
from those in the catalogue. Please consult our Technical Department.
Type S*:
3 positions
with spring centering
Type TA:
2 external positions
with return spring
Type TAK:
2 external positions
with mechanical retention
Type SA*:
2 positions
(central + external)
with spring centering
Type SAK*:
2 positions
(central + external)
with mechanical retention
Type SK*:
3 positions
with mechanical retention
Besides the diagrams shown, which are the most frequently
used, other special versions are available: consult our
Technical Department for their identification and operating
limits.
NOTE: TA02,TA23, TAK02 and TAK23 spools are available
only for DSH3.
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DSH*
VALVE IN ENERGIZED POSITION
4 - PRESSURE DROPS ∆p-Q (values obtained with viscosity 36 cSt at 50 °C)
4.1 - DSH3
VALVE IN DE-ENERGIZED POSITION
4.2 - DSH5
SPOOL TYPE
FLOW DIRECTION
P→A P→B A→T B→T P→T
CURVES ON GRAPH
S2, SA2, SAK2
2
S3, SA3, SAK3
3 3
S4, SA4, SAK4
3
SPOOL TYPE
FLOW DIRECTION
P→A P→B A→T B→T
CURVES ON GRAPH
S1, SA1, SAK1
2 2 3 3
S
2, SA2, SAK2
1 1 3 3
S
3, SA3, SAK3
3 3 1 1
S
4, SA4, SAK4
4 4 4 4
TA, TAK
3 3 3 3
TA02, TAK02
2 2 2 2
TA23, TAK23
3 3
VALVE IN DE-ENERGIZED POSITION
VALVE IN ENERGIZED POSITION
SPOOL TYPE
FLOW DIRECTION
P→A P→B A→T B→T P→T
CURVES ON GRAPH
S2, SK2
5
S3, SK3
6 6
S4, SK4
5
SPOOL TYPE
FLOW DIRECTION
P→A P→B A→T B→T
CURVES ON GRAPH
S1, SK1
2 2 1 1
S2, SK2
3 3 1 1
S3, SK3
3 3 2 2
S4, SK4
1 1 2 2
TA, TAK
3 3 2 2
5
6
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DSH*
5.1 - DSH3
5.2 - DSH5
SPOOL TYPE
CURVE
P→A P→B
S
1, SK1, SA1, SAK1
1 1
S
2, SK2, SA2, SAK2
1 1
S
3, SK3, SA3, SAK3
1 1
S4, SK4, SA4, SAK4
2 2
SPOOL TYPE
CURVE
P→A P→B
T
A, TAK
1 1
T
A02, TAK02
1 1
T
A23, TAK23
1 1
SPOOL TYPE
CURVE
P→A P→B
S1, SK1, SA1, SAK1
1 1
S2, SK2, SA2, SAK2
1 1
S3, SK3, SA3, SAK3
1 1
S4, SK4, SA4, SAK4
2 2
SPOOL TYPE
CURVE
P→A P→B
TA, TAK
1 1
5 - OPERATING LIMITS
The curves define the flow rate operating fields according to the valve pressure of the different versions.
The values have been obtained according to ISO 6403 norm, with mineral oil viscosity 36 cSt at 50 °C and filtration ISO 4406:1999 class
18/16/13.
NOTE: Values in the graphs are relevant to the standard valve. The operating limits can be considerably reduced if a 4-way valve is
used with port A or B plugged.
6 - INSTALLATION
Configurations with centering and return springs can be mounted in any position; valves with
mechanical detent must be mounted with the longitudinal axis horizontal.
Valve fixing is by means of screws or tie rods, with the valve mounted on a lapped surface, with values
of planarity and smoothness that are equal to or better than those indicated in the drawing. If the
minimum values of planarity and/or smoothness are not met, fluid leakage between valve and
mounting surface can easily occur.
Surface finishing
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DSH*
7 - OVERALL AND MOUNTING DIMENSIONS DSH3
DSH3 - S*
DSH3 - SK*
dimensions in mm
DSH3-TA
DSH3-TAK
DSH3-TA23
DSH3-TAK23
DSH3-SA*
DSH3-SAK*
NOTE: The valve is supplied with the hand lever oriented in a perpendicular position with respect to the mounting surface (as indicated
in the above drawing). For installation needs the hand lever can be oriented by the user directly at 180° to the standard position, simply
by unscrewing the lever and re-screwing it in the desired position.
1 Mounting surface with sealing rings:
N. 4 OR type 2037 (9.25x1.78) - 90 Shore
2 Hand lever (NOTE)
Valve fastening: N. 4 SHC screws M5x30 ISO 4762
Tightening torque: 5 Nm (bolts A 8.8)
Threads of
mounting holes:
M5x10
0.750.75
TT
BB
31.7531.75
PP
AA
25.925.9
15.515.5
5.15.1
12.712.7
3131
M5M5
ø4ø 4
ø7.5(max)ø7.5(max)
21.521.5
30.230.2
40.540.5
3333
DSH3 MOUNTING SURFACE
ISO 4401-03-02-0-05
(CETOP 4.2-4-03-350)
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DSH*
REPRODUCTION IS FORBIDDEN. THE COMPANY RESERVES THE RIGHT TO APPLY ANY MODIFICATIONS.
8 - OVERALL AND MOUNTING DIMENSIONS DSH5
d
imensions in mm
DSH5-TA
DSH5-TAK
DSH5-SA*
DSH5-SAK*
DSH5-S*
DSH5-SK*
DSH3 DSH5
Type with rear ports PMMD-AI3G PMD4-AI4G - 3/4” BSP threaded
Type with side ports PMMD-AL3G PMD4-AL4G - 1/2” BSP threaded
P, T, A and B threads 3/8” BSP
9 - SUBPLATES (See catalogue 51 000)
1 Mounting surface with sealing rings:
N. 5 OR type 2050 (12.42x1.78) - 90 Shore
2 Hand lever (NOTE)
Valve fastening: N. 4 SHC screws ISO 4762 M6x40
Tightening torque: 8 Nm (A 8.8 screws)
Threads of mounting holes: M6x10
50.8
37.3
27
3.2
16.7
54
M6x10
facoltativo
Attacco"T"
B
A
P
T
Ø11.2(max)
46
32.5
21.4
6.3
MOUNTING SURFACE DSH5
(CETOP 4.2-4-05-320)
optional
“T” port
NOTE: the valve can be supplied with hand lever oriented in different
positions; ask our technical department for details.