INT'L Shortcut Cartridge Catalogue - Bibus SK, s.r.o.

Solenoid Operated Cartridge Valves
4-WAY, 2-POSITION, DIRECTIONAL SPOOL VALVE
b
4
Port
3
Port
2
Port
1
d
Port
Note: Performance limits
are derived with 4-way
operation and symmetrical
flow. For valve applications
where either asymmetrical
flow or 3-way operation are
present, these performance
limits may be reduced.
Locating
Shoulder
Performance Curves
P = bar
c
a
400
300
200
100
R, E, U, L
(Spool Options)
2 4
DNDA-***
Nominal
Capacity
Typical
Cartridge
Model Code
■ Maximum operating pressure = 350 bar.
■ Maximum valve leakage at 24 cSt = 160 cc/min. at 210 bar.
■ Manual override force requirement = 10 kg at 350 bar.
■ Manual override stroke = 2,5 mm.
■ Response time - typical = 50 ms.
■ Maximum switching frequency = 15000 cycles/hr.
■ Viscosity range = 10 - 600 cSt.
■ This valve is direct actuated and requires no minimum hydraulic pressure for operation.
■ The solenoid tube assembly is fatigue rated for 350 bar service.
■ The soft shift feature results in significantly longer response time over Sun’s standard solenoid. Response time is dependant
on flow, pressure, coil voltage, oil viscosity and ambient temperature. Typical response time ranges from 150 ms to 300 ms.
■ A wide variety of coil termination and voltage options are available. See Sun website: Products: Accessories: Coils.
Visit www.sunhydraulics.com for current list pricing and complete technical information on all Sun products.
Int’l Shortcut Catalogue #999-901-312 138
DNDA – X ✱✱ – ✱✱✱
Nominal
Capacity
Control* Spool Configuration** Spool Configuration** Coil Options**
D 40 L/min. X No Manual
Override
C Closed, Shift
to Through
2 4
N Through,
Shift to Cross
2 4
See page 187:
Coil option information
M Manual
Override
D Closed, Shift
to Cross
3
2
1
4
R Regen, Shift
to Cross
3
2
1
4
for Metal Housing (Round)
Solenoid Cartridges.
S Soft Shift E Cross, Shift T Tandem, Shift
to Closed to Through
D Twist/Lock
Dual, Manual H Open, Shift
3
2
1
4
U Through, Shift
Override to Cross to Through
Cartridge Dimensions
Cavity a b c*** d
X,M,S D,L,T
L Twist/Lock, L Cross, Shift 2 4
Y Motor, Shift
Detent, P to A, B and to Cross Seal Material
Manual
Override
T Blocked
3 1
3 1
N Buna-N
T Twist/Lock, V Viton
Momentary,
Manual Override
Installation
Torque
(Nm)
40 L/min. DNDA – *** T - 31A 84,8 22,2 89,4 114,3 37,3 45 - 50
***An additional 50,8 mm clearance is needed for coil installation and removal.
Valve Performance Limits at 10% Undervoltage and Stabilized Coil Temperature
N
T
D, H, Y
C
P = bar
400
300
200
100
1 to 4
2 to 3
4 to 1
Looped
3 to 2 to
4 to 1
3 to 2
0 5 10 15 20 25 30 35 40 45 0 5 10 15 20 25 30 35 40 45
0 5 10 15 20 25 30 35 40 45
0 10 20 30 40
Flow = L/min.
Flow = L/min.
Flow = L/min.
Flow = L/min.
OPTION ORDERING INFORMATION
3
1
DNDA-X** DNDA-SC* DNDA-SN* DNDA-***
3
2
3
1
4
1
* See page 178
for information ** Consult the Sun website for complete information on Spool Configurations,
on Control Options the full line of Coil Options and Embedded Amplifier Coils/Controllers.
P = bar
400
300
200
100
2 to 1
4 to 3
3
2
3
2
3
2
1
4
1
4
1
4
1 to 2
3 to 4
P = bar
20
15
10
5
Pressure Differential
vs. Flow
2-1 Shifted,
3-4 Not Shifted
4-1 Shifted
3-2 and 3-4
Shifted
2-1 Not
Shifted