Артикул: RX7356
Directional poppet valves, directly operated, with solenoid actuation SEC 6
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Description
- Size 6
- Component series 2X
- Maximum operating pressure 400 bar
- Maximum flow 20 l/min
Features
- 3/3-, 4/2 or 4/3 directional design
- Porting pattern according to ISO 4401-03-02-0-05
- Reliable switching when under pressure over longer periods of standstill
- Wet-pin DC solenoids with detachable coil
- Solenoid coil can be rotated by 90°
- The coil can be changed without having to open the pressure-tight chamber
- Electrical connection as individual connection
- Central connection possible via double mating connector
- Corrosion-protected design
Product description
Directional valves type SEC are solenoid-actuated directional seat valves. They control the start, stop and direction of a flow.
The directional valves basically consists of a housing, the electronic solenoids, as well as the hardened valve system.
It is to be ensured that the maximum flow indicated is not exceeded. If necessary, a screw-in throttle has to be used for flow limitation (see below).
Depending on the production tolerances, a pump or tank pre-opening of the valve occurs. For this reason, for valves of the same type, different pressure gradients can occur during the switching process.
One valve alone may not be used for holding loads or positions.
Check valve insert
The check valve insert in P enables a free flow from P to A/B and closes the flow from A/B to P.
The check valve insert in T enables a free flow from A/B to T and closes the flow from T to A/B.
Screw-in throttle
The use of a screw-in throttle is required if, due to prevailing operating conditions, flows which exceed the performance limit of the valve can occur during the switching processes.
Examples:
- Accumulator operation,
- Use as pilot control valve with internal pilot fluid tapping.
For available screw-in throttles and check valve insert, refer to "Accessories".
| 1 | Screw-in throttle |
| 2 | Check valve insert |
| 3 | Check valve insert |
Type code
| 01 | 02 | 03 | 04 | 05 |
| 06 | 07 | 08 | 09 | 10 |
| SEC | 6 | 2X | / | N9 |
| 01 | 3 main ports | 3 | |
| 4 main ports | 4 | ||
| 02 | Seat valve | SEC | |
| 03 | Size 6 | 6 | |
| Symbols | |||
| 04 |  | 3 main ports | E35 |
 | 4 main ports | EB | |
 | E | ||
| 05 | Component series 20 … 29 (20 … 29: unchanged installation and connection dimensions) | 2X | |
| 06 | Direct voltage 12 V | G12 1) | |
| Direct voltage 24 V | G24 | ||
| 07 | With concealed manual override | N9 | |
| Electrical connection | |||
| 08 | 3-pole connector (2+PE) according to DIN EN 175301-803 | K4 2; 3) | |
| 09 | Without check valve insert, without screw-in throttle | no code | |
| With check valve insert, with screw-in throttle (see "Accessories") | P 4) | ||
| Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") | |||
| 10 | NBR seals | no code | |
| FKM seals | V | ||
| 1) | Only version "E" |
| 2) | Mating connectors, separate order, see "Accessories" and datasheet 08006. |
| 3) | Double valve mating connectors for central connection, separate order, see "Accessories" and data sheet 08006. |
| 4) | Only version "E.G24" |
Technical data
(For applications outside these values, please consult us!)
general
| Size | 6 | ||
| Weight | 3/3 directional seat valve | kg | 2.4 |
| 4/2 directional seat valve | kg | 2.1 | |
| 4/3 directional seat valve | kg | 2.4 | |
| Installation position | any | ||
| Ambient temperature range | NBR seals | °C | -40 … +80 |
| FKM seals | °C | -20 … +50 | |
hydraulic
| Size | 6 | ||
| Maximum operating pressure | Port P | bar | 400 |
| Port A | bar | 400 | |
| Port B | bar | 400 | |
| Port T | bar | pT < pP, pT < pA, pT < pB; however, max. 50 (energized) | |
| Maximum flow 1) | l/min | 20 | |
| Hydraulic fluid | see table "Hydraulic fluid" | ||
| Hydraulic fluid temperature range | NBR seals | °C | -25 … +80 |
| FKM seals | °C | -20 … +80 | |
| Viscosity range | mm²/s | 4 … 500 | |
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) | Class 20/18/15 | ||
| 1) | 25 l/min at a system pressure of up to 280 bar |
| 2) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
| Hydraulic fluid | Classification | Suitable sealing materials | Standards | Data sheet | |
| Mineral oils | HL, HLP | NBR, FKM | DIN 51524 | 90220 | |
| Bio-degradable | Insoluble in water | HETG | NBR, FKM | ISO 15380 | 90221 |
| HEES | FKM | ||||
| Soluble in water | HEPG | FKM | ISO 15380 | ||
| Flame-resistant | Water-free | HFDU (glycol base) | FKM | ISO 12922 | 90222 |
| HFDU (ester base) | FKM | ||||
| HFDR | FKM | ||||
| Containing water | HFC (Fuchs: Renolin ZAF DT 46, Renolin ZAF 46 D VW; | NBR | ISO 12922 | 90223 | |
| Important information on hydraulic fluids:
| |||||
electrical
| Voltage type | Direct voltage | ||
| Available voltages 1) | V | 12 / 24 | |
| Voltage tolerance | % | ± 10 | |
| Power consumption | W | 30 | |
| Duty cycle | % | 100 | |
| Maximum coil temperature | °C | 120 | |
| Maximum switching time | ON | ms | 60 |
| OFF | ms | 60 | |
| Maximum switching frequency | 1/h | 2000 | |
| Protection class according to EN 60529 | IP65 (If a suitable and a correctly mounted mating connector are used.) | ||
| 1) | Special voltages available upon request |
Notices:
- Actuation of the manual override is only possible up to a tank pressure of approx. 50 bar. Avoid damage to the bore of the manual override. Do not use sharp-edged objects.
- The shut-off of the solenoids creates voltage peaks, which can be reduced by the use of suitable diodes.
- For the assembly, commissioning and maintenance, see data sheet 07300
- In the set-up mode, a H position can be achieved by controlling both coils (only with the 4/3 directional seat valve with the spool symbol “E”). In order to avoid an overheating of the coils, (according to VDE 0580) in the intermittent operation S3, a duty cycle of 10 % may not be exceeded with a play time of 5 minutes or 50 % at 70 seconds.
Diagrams/characteristic curves
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves
Screw-in throttle
Dimensions
Dimensions in mm
 Required surface quality of the valve contact surface |
| 1 | Solenoid “a” |
| 2 | Solenoid “b” |
| 3 | Name plate |
| 4 | Mating connector without/with circuitry for connector "K4", separate order, see "Accessories" |
| 5 | Double valve mating connector without/with circuitry for “K4” connector (separate order, see data sheet 08006) |
| 6 | Mounting nut, tightening torque MA = 5+1 Nm |
| 7 | Identical seal rings for ports A, B, P, T |
| 8 | Space required to remove the mating connector |
| 9 | Space required to remove the coil |
| 10 | Porting pattern according to ISO 4401-03-02-0-05 |
| 11 | Accessories, (separate order, see "Accessories") |
| 12 | Optional G1/8 port for pressure switches in actuator lines A and B; tightening torque MA = 13 Nm |
Notices:
Maximum diameter for additional connection bores in block (A, B, P, and T) 6.8 mm.
With larger diameters, there is a risk that the additional elements (plug-in components) may not remain in the position intended.
Valve mounting screws (separate order)
| Size | Quantity | Hexagon socket head cap screws | Material number |
| 6 | 4 | ISO 4762 - M5 x 55 - 12.9 (Friction coefficient μtotal = 0.09 … 0.14) Tightening torque MA = 9,3 Nm ±10 % | R913051416 |
Project planning information
Classification according to DIN EN ISO 13849
Based on the assessment according to table C.1 and C.2 of DIN EN ISO 13849-2.2000-12, the valve can be classified as category 1.
- The stipulations of the Machinery Directive 2006/42/EC are to be adhered to.
- Please also observe the data sheets 07008 and 07300.
Evaluation of the MTTFd value according to DIN EN ISO 13849-1.2007-02
Based on the assessment according to attachment C.3 of DIN EN ISO 13849-1, for the valve, a MTTFd of 150 years can be indicated.
- Based on the casting tolerances, with manifold installation, a manifold with an inside micrometer of 55 mm is to be used.
Accessories
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Mating connectors for valves with one or two solenoids (individual connection)
Mating connectors for valves with connector “K4”, with indicator light
3P Z5L
Mating connectors for valves with connector “K4”, with indicator light
3P Z5L
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Mating connectors for valves with one or two solenoids (individual connection)
Mating connectors for valves with connector “K4”, with indicator light and Zener diode suppression circuit
3P Z5L1
Mating connectors for valves with connector “K4”, with indicator light and Zener diode suppression circuit
3P Z5L1
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Mating connectors for valves with one or two solenoids (individual connection)
Double mating connectors for valves with two solenoids and connector “K4”, with line connection M12 x 1
3P Z60
Double mating connectors for valves with two solenoids and connector “K4”, with line connection M12 x 1
3P Z60
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Cable sets for valves with two solenoids (double mating connectors)
Double mating connectors for valves with two solenoids and connector “K4”, with indicator light and line connection M12 x 1
3P Z60L
Double mating connectors for valves with two solenoids and connector “K4”, with indicator light and line connection M12 x 1
3P Z60L
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Cable sets for valves with two solenoids (double mating connectors)
Double mating connectors for valves with two solenoids and connector “K4”, with indicator light, Zener diode suppression circuit and line connection M12 x 1
3P Z60L8
Double mating connectors for valves with two solenoids and connector “K4”, with indicator light, Zener diode suppression circuit and line connection M12 x 1
3P Z60L8
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Cable sets for valves with two solenoids (double mating connectors)
Double mating connectors for valves with two solenoids and connector “K4”, with assembled connection line
4P Z61 +
Double mating connectors for valves with two solenoids and connector “K4”, with assembled connection line
4P Z61 +
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Cable sets for valves with two solenoids (double mating connectors)
Double mating connectors for valves with two solenoids and connector “K4”, with indicator light, with assembled connection line, cable shielded
3P Z61L +
Double mating connectors for valves with two solenoids and connector “K4”, with indicator light, with assembled connection line, cable shielded
3P Z61L +
- For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector”
- Cable sets for valves with two solenoids (double mating connectors)
Accessories (separate order)
| Quantity | Comprising: | Channel | Material number | |
| 1 | Screw-in throttle | Ø0,8 | P | R961013102 |
| 1 | Screw-in throttle | Ø1,2 | P | |
| 1 | Screw-in throttle | Ø2,0 | P | |
| 1 | Check valve insert | P | ||
| 1 | Check valve insert | T | ||
Ordering codes
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