3/2 and 4/2 directional poppet valves with solenoid operation
Type M-.SED10...L1X
Features
- Direct operated directional poppet valve with solenoid actuation
- Mounting face as per DIN24 340 A
ISO 4401 and CETOP-RP 121H
- Closed port is leak-free isolated
- keep switch flexibility under high pressure
- Pressure-tight chamber does not need to be opened for a change of
the coil
- Solenoid coil can be rotated through 90°
- With concealed manual override, optional
Function and configuration
·Type M-SED10 3/2 directional poppet valve
Directional valves of the type SED are direct operated directional
poppet valves with solenoid actuation.
They control the start, stop and direction of flow.
The directional poppet valves consist of housing (1), the solenoid
(2), the valve seat (7) and (11) and the control spool (4).
The manual override (6) allows for the switching of the valve
without solenoid energization.
General principle (3/2 directional poppet valve):
The initial position of the valve (normally open "UK" or normally
closed "CK") is determined by the arrangement of the spring (5).
The chamber (3) behind the control spool(4) is connected to port P
and sealed against port T. Thus, the valve is pressure compensated
in relation to the actuating forces (solenoid and spring).
By means of the control spool (4),the port P,A and T can be loaded
with maximum operating pressure (350bar) and the flow can be
directed in both directions (see symbols).
In the initial position, the control spool (4) is pressed onto the
seat (11) by the spring (5), in spool position, it is pressed onto
the seat (7) by the solenoid (2). The flow is blocked.
·Type M-4SED10 4/2 directional poppet valve
With a sand with plate, the Plus-1plate, under the 3/2 directional
poppet valves, the function of a 4/2 directional poppet valve is
achieved.
1). Initial position:
the main valve is not actuated. The spring(5)holds the control
spool(4)on the seat(11).Port P is blocked and A is connected to T.
Apart from that, one control line is connected from A to the large
area of the control spool(8), which is thus unloaded to the tank.
The pressure applied via P now pushes the ball(9) onto the
seat(10). Now, P is connected to B, and A to T.
2). Transition position:
When the main valve is actuated, the control spool(4) is shifted
against the spring(5) and pressed onto the seat(7). During this,
port T is blocked, P, A, and B are briefly connected to each other.
3). Spool position:
P is connected to A.As the pump pressure acts via A on the large
area of the control spool (8), the ball (9) is pressed onto the
seat (12). Thus, B is connected to T, and P to A. The ball (9) in
the Plus-1 plate has a "positive spool overlap".
·Throttle insert:
The use of a throttle insert is required, if, due to the operating
conditions, flows are to be expected during the switching
procedure, which are higher than the started maximum performance
limits of the valve.
The throttle is inserted into port P of the valve.
·Cartridge check valve:
The cartridge check valve allows free flow from P to A and provides
leak-free closed from A to P.
The cartridge check valve is inserted into port P of the valve.
Spool symbols
Specification
Technical data
| Installation position | Optional |
| Environment temperature | ℃ | -30 to +50 (NBR seal) |
| -20 to +50 (FKM seal) |
| Weight | Two tee Solenoidic directional valve | Kg | 2.6 |
| Two four-way Solenoidic directional valve | Kg | 3.9 |
| Max operation pressure | bar | 350 |
| Max flow | L/min | 40 |
| Hydraulic fluid | Mineral oil suitable for NBR and FKM seal |
| Phosphate ester for FKM seal |
| Fluid temperature range | ℃ | -30 to +80 (NBR seal) |
| -20 to +80 (FKM seal) |
| Viscosity range | mm2/s | 2.8 to 500 |
| Degree of contamination | Maximum permissible degree of fluid contamination:Class 9. NAS 1638
or 20/18/15, ISO4406 |
Electrical data
| Voltage type | DC | AC+ rectifier |
| Voltage version | V | 12, 24, 110, 205, 220 | 110,220(only possible via Z5 rectifier) |
| Permissible voltage(deviation) | % | +10～-15 |
| Input power | W | 30 |
| Continuous power-on time | Continuous |
| Switching time to ISO 6403 |
| Pressure bar | Flow L/min | DC solenoid | AC + rectifier |
| On/ms (without oil tank pressure) | Off/ms | On/ms (without oil tank pressure) | Off/ms |
| UK | CK | D | Y | UK, CK | D, Y | UK | CK | D | Y | UK, CK | D, Y |
| 70 | 40 | 40 | 30 | 40 | 35 | 10 | 10 | 35 | 30 | 40 | 35 | 40 | 40 |
| 140 | 40 | 40 | 30 | 40 | 35 | 10 | 10 | 40 | 30 | 40 | 35 | 40 | 40 |
| 210 | 40 | 45 | 35 | 45 | 35 | 10 | 10 | 45 | 35 | 45 | 35 | 40 | 40 |
| 280 | 40 | 45 | 35 | 45 | 35 | 10 | 10 | 45 | 35 | 45 | 35 | 40 | 40 |
| 315 | 40 | 50 | 35 | 50 | 35 | 10 | 10 | 50 | 40 | 50 | 35 | 40 | 40 |
| 350 | 40 | 50 | 45 | 50 | 45 | 10 | 10 | 50 | 45 | 50 | 45 | 40 | 40 |
| Note: The switching types relate to a flow of P to A and A to T. With
reversed flows deviations are possible. |
| Switching frequency | Cycles/h | to 15000 |
| IP rating as per DIN 40050 | IP65 |
| Max coil temperature | ℃ | +150 |
Note: for electrical connection, protective wire (PE) shall be earthed
as required.
Unit dimensions
·M-3SED10 -L1X/...solenoid directional poppet valve
1 Solenoid
2 Manual override
3 Plug-in connector to DIN 43650 (rotatable 90º)
4 Space required to remove the Plug-in connector
5 O-rings 12×2 for ports A,B,TA,TB
O-rings 14×2 for port P
6.1 Plug for M-3SED10UK-L1X/
6.2 Plug for M-3SED10CK-L1X/
7 Name plate
8 Space required to remove the coil
9.1 Total length of M-3SED10UK-L1X/
9.2 Total length of M-3SED10CK-L1X/
10 Securing nut tighting torque MA = 4Nm
11 Ports B and TB are a blind counter bore
12 Valve fixing screws
Internal hexagon screw: M6×40 GB/T 70.1-10.9,
tighting torque MA = 15.5 Nm
It must be ordered separately, if connection plate is needed. Type:
G 66/01 (G 3/8), G 66/02 (M18×1.5)
G 67/01 (G 1/2), G 67/02 (M22×1.5)
·M-4SED10 -L1X/...solenoid directional poppet valve
1 Solenoid
2 Manual override
3 Plug-in connector to DIN 43650 (rotatable 90º)
4 Space required to remove the Plug-in connector
5 O-rings 12×2 for ports A,B,TA,TB
O-rings 14×2 for port P
6.1 Plug for M-4SED10D-L1X/
6.2 Plug for M-4SED10Y-L1X/
7 Name plate
8 Space required to remove the coil
9.1 Total length of M-4SED10D-L1X
9.2 Total length of M-4SED10Y-L1X
10 Plus-1 Plate
11 Securing nut tighting torque MA = 4Nm
12 Port TB is a blind counter bore
13 Valve fixing screws
Internal hexagon screw: M6×40 GB/T 70.1-10.9,
tighting torque MA = 15.5 Nm
It must be ordered separately, if connection plate is needed. Type:
G 66/01 (G 3/8), G 66/02 (M18×1.5)
G 67/01 (G 1/2), G 67/02 (M22×1.5)
