41 600/117 ED
DSH *
LEVER OPERATED
DIRECTIONAL CONTROL VALVE
MOUNTING SURFACES
DSH3 ISO 4401-03
DSH5 ISO 4401-05
p max (see performances table)
Q nom (see performances table)
OPERATING PRINCIPLE
— 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).
PERFORMANCES (with mineral oil of viscosity of 36 cSt at 50°C)
DSH3 DSH5
Maximum working pressure:
- P - A - B ports bar 350 320
- T port 210 160
Nominal flow rate l/min 75 150
Ambient temperature range °C -20 / +60
Fluid temperature range °C -20 / +80
Fluid viscosity range 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
41 600/117 ED 1/6
DSH*
1 - IDENTIFICATION CODE
D S H - /
Seals:
N = NBR seals for mineral oil (standard)
Directional control valve
V = FPM seals for special fluids
with spool
Lever operated Series No.:
11 for DSH3 (the overall and mounting dimensions
remain unchanged from 10 to 19)
Size:
30 for DSH5 (the overall and mounting dimensions
3 = ISO 4401-03
remain unchanged from 30 to 39)
5 = ISO 4401-05
Spool type (see par. 2)
NOTE: S* SK* SA* SAK*
On request it is possible to have the lever mounted in different positions TA TAK
from those in the catalogue. Please consult our Technical Department. TA23 TAK23
2 - SPOOL TYPE
Type S*: Type SK*: Type SA*: Type SAK*:
3 positions 3 positions 2 positions 2 positions
with spring centering with mechanical retention (central + external) (central + external)
with spring centering with mechanical retention
Type TA: Type TAK:
2 external positions 2 external positions
with return spring 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.
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.
41 600/117 ED 2/6
DSH*
4 - PRESSURE DROPS ∆p-Q (values obtained with viscosity 36 cSt at 50 °C)
4.1 - DSH3
VALVE IN ENERGIZED POSITION
FLOW DIRECTION
SPOOL TYPE P→A P→B A→T B→T
CURVES ON GRAPH
S1, SA1, SAK1 2 2 3 3
S2, SA2, SAK2 1 1 3 3
S3, SA3, SAK3 3 3 1 1
S4, 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
FLOW DIRECTION
SPOOL TYPE 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
4.2 - DSH5
VALVE IN ENERGIZED POSITION
FLOW DIRECTION
SPOOL TYPE 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
6 5 VALVE IN DE-ENERGIZED POSITION
FLOW DIRECTION
SPOOL TYPE P→A P→B A→T B→T P→T
CURVES ON GRAPH
S2, SK2 5
S3, SK3 6 6
S4, SK4 5
41 600/117 ED 3/6
DSH*
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.
5.1 - DSH3
SPOOL TYPE CURVE SPOOL TYPE CURVE
P→A P→B P→A P→B
S1, SK1, SA1, SAK1 1 1 TA, TAK 1 1
S2, SK2, SA2, SAK2 1 1 TA02, TAK02 1 1
S3, SK3, SA3, SAK3 1 1 TA23, TAK23 1 1
S4, SK4, SA4, SAK4 2 2
5.2 - DSH5
SPOOL TYPE CURVE SPOOL TYPE CURVE
P→A P→B P→A P→B
S1, SK1, SA1, SAK1 1 1 TA, TAK 1 1
S2, SK2, SA2, SAK2 1 1
S3, SK3, SA3, SAK3 1 1
S4, SK4, SA4, SAK4 2 2
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 Surface finishing
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.
41 600/117 ED 4/6
DSH*
7 - OVERALL AND MOUNTING DIMENSIONS DSH3
DSH3 - S* dimensions in mm
DSH3 - SK*
DSH3 MOUNTING SURFACE
ISO 4401-03-02-0-05
(CETOP 4.2-4-03-350)
40.5
33
30.2
21.5
12.7
DSH3-TA
5.1 0.75
DSH3-TAK T
15.5
31 25.9 A B
DSH3-TA23
31.75
DSH3-TAK23 P
DSH3-SA*
ø 7.5 (max)
DSH3-SAK* ø4
M5
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 M5x10
mounting holes:
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.
41 600/117 ED 5/6
DSH*
8 - OVERALL AND MOUNTING DIMENSIONS DSH5
dimensions in mm
DSH5-S*
DSH5-SK*
MOUNTING SURFACE DSH5
(CETOP 4.2-4-05-320)
54
50.8
37.3
27
16.7
21.4
3.2
6.3
P
A B
32.5
46
T
M6x10
optional
“T” port
Attacco "T"
DSH5-TA
Ø11.2 (max) facoltativo
DSH5-TAK
1 Mounting surface with sealing rings:
N. 5 OR type 2050 (12.42x1.78) - 90 Shore
DSH5-SA* 2 Hand lever (NOTE)
DSH5-SAK*
Valve fastening: N. 4 SHC screws ISO 4762 M6x40
Tightening torque: 8 Nm (A 8.8 screws)
Threads of mounting holes: M6x10
NOTE: the valve can be supplied with hand lever oriented in different
positions; ask our technical department for details.
9 - SUBPLATES (See catalogue 51 000)
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
41 600/117 ED REPRODUCTION IS FORBIDDEN. THE COMPANY RESERVES THE RIGHT TO APPLY ANY MODIFICATIONS. 6/6
