Артикул: RX7560
Proportional directional cartridge valve, pilot-operated FE
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Description
- Size 16
- Component series 2X
- Max. operating pressure 315 bar
- Flow, max. 190 l/min
Features
- Pilot-operated 2-way proportional throttle valve in block installation technology
- Installation dimensions according to DIN ISO 7368
- Orifice spool electrically position-controlled
- Flow direction from A to B
- In case of power failure or cable break, the orifice spool will automatically move into closed position and block the flow from A to B
- Can be used for pressure-compensated closed-loop flow control in conjunction with a pressure compensator
- For external analog electronics
Product description
Valves of type FE are pilot-operated 2-way proportional throttle valves for block installation for the continuous control of flows.
Technical set-up
The valve consists of four main assemblies:
- Cover (1) with connection surface for pilot oil connections
- Main valve (2) with orifice spool (3)
- Pilot control valve (4) with proportional solenoid (5)
- Command value-dependent position control of the orifice spool (3) and thus defined opening of the orifice (8)
- The flow depends on the Δp across the orifice (8) and the position of the orifice spool (3)
- Actual value recording of the orifice spool (3) position by the position transducer (7); command/actual value comparison in the electronics (6); variations are prepared and forwarded as control output for correction of the orifice spool (3) position to the proportional solenoid (5) to the pilot control valve (4)
- Area ratio of area (15) to area (12) = 1 : 1
- Flow direction A → B; connect X to A or connect externally
- With external pilot oil supply, the pressure at X must be ≥ the pressure in A in order for the valve to work
- Pilot oil bypass via the nozzle (16) increases the vibration absorption
- When the enable is disconnected, the orifice spool (3) in the valve socket will move against stop (17) (closed position) and block the flow from A → B
- Orifice spool position at command value 0 V or 4 mA already regulated, whereas the orifice (8) is still located in the positive overlap and blocks A → B
- Zero flow over the orifice spool (3) and the pilot control valve (4) at command value 0 V or 4 mA as well as inactive enable see technical data
- Flow A → B and A connected to X
- The proportional solenoid (5) moves the pilot spool (4.1) against the spring (13) and opens the connection from control chamber (12) to Y; pressure reduction in the control chamber (12) and movement of orifice spool (3) in opening direction by the pressure in A on the area (15)
- Flow A → B and A connected to X
- Flow reduction in the proportional solenoid (5); the spring (13) moves the pilot spool (4.1) against the proportional solenoid and opens the connection from X to the control chamber (12); pressure build-up in the control chamber (12); pressure on the orifice spool area in the control chamber (12) plus spring force (10) move the orifice spool (3) in closing direction
- Can be used in connection with a pressure compensator for the load-compensated control of a flow
- The electronics de-energize the solenoid in case of supply voltage failure or cable break in the position transducer (7)
- The pressure applied to control port X plus the spring force (10) move the spool into closed position where it blocks the flow A → B
General function:
Open orifice spool function:
Close orifice spool function:
Flow control function:
Supply voltage failure:
Notice:
Failure of the supply voltage will lead to an abrupt standstill of the control axis. The acceleration forces occurring in this connection may cause machine damage!
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | ||
| FE | 16 | C | - | 2X | / | * |
| 01 | Electrically operated 2-way proportional throttle valve for block installation | FE |
| 02 | Size 16 | 16 |
| 03 | Installation kit | C |
| 04 | Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions) - Size 6 | 2X |
| Flow characteristic linear | ||
| 05 | 100 l/min | 100L 1) |
| 190 l/min | 190L 1) | |
| Electrical connection | ||
| 06 | Without mating connector, with connector according to DIN EN 175301-803, separate order | K4 |
| Seal material | ||
| 07 | NBR seals, suitable for mineral oil HL and HLP according to DIN 51524 | M |
| FKM seals | V | |
| 08 | Further details in the plain text | * |
| 1) | Rated flowat 10 bar valve pressure differential between port A and B | |
Technical data
general
| Type | FE | |
| Size | 16 | |
| Component series | 2X | |
| Installation position | Any | |
| Weight | kg | 2.7 |
| Storage temperature range | °C | -20 … +80 |
| Ambient temperature range | °C | -20 … +70 |
hydraulic
| Type | FE | ||
| Size | 16 | ||
| Maximum operating pressure | bar | 315 | |
| Maximum operating pressure | Anschluss A | bar | 315 |
| Port B | bar | 315 | |
| Maximum pilot pressure | Port X | bar | 315 |
| Return flow pressure | Port Y | depressurized to the tank | |
| Minimum inlet pressure | in port A (flow direction A → B) | bar | 7 |
| Maximum flow | l/min | 190 | |
| Pilot oil volume for switching process seat position | 0 → 100 % | cm³ | 0.9 |
| Maximum pilot oil flow 1) | Port Y | l/min | 2.5 |
| Pilot oil port | Connect X to A or connect externally; with external pilot oil supply at X, the pressure at X must be ≥ the pressure in A! | ||
| Zero flow | State: Command value 0 V or 4 mA | from A → B see characteristic curves 0.4 l/min from A → X and via the nozzle in the main control spool after Y with Δp = 315 bar | |
| State: Enable inactive (solenoid de-energized) | max. 1.5 l/min from A → B with Δp = 315 bar max. 0.2 l/min from A → X and via the nozzle in the main control spool after Y with Δp = 315 bar | ||
| Hydraulic fluid temperature range | °C | -20 … +80 | |
| Viscosity range | mm²/s | 15 … 380 | |
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) | Pilot control valve | Class 17/15/12 according to ISO 4406 (c) | |
| Main valve | Class 20/18/15 according to ISO 4406 (c) | ||
| Hysteresis | % | < 0.2 | |
| Response sensitivity | % | < 0.1 | |
| Range of inversion | % | < 0.15 | |
| 1) | with stepped input signal |
| 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 |
| Mineral oils and related hydrocarbons | HL, HLP | NBR / FKM | DIN 51524 |
| For more information and data on the use of other hydraulic fluids please contact us. | |||
electrical
| Type | FE | ||
| Voltage type | Direct voltage | ||
| Rated current | mA | 1000 | |
| Solenoid coil resistance | Cold value at 20 °C | Ω | 12.7 |
| Maximum hot value | Ω | 19.3 | |
| Duty cycle | % | 100 | |
| Protection class according to DIN EN 60529 | IP65 (If a suitable and a correctly mounted mating connector are used.) | ||
electrical, inductive position transducer
| Type | FE | ||
| Coil resistance at 20°C | Total resistance between 1 and 2 | Ω | 31.5 |
| Total resistance between 2 and PE | Ω | 45.5 | |
| Total resistance between PE and 1 | Ω | 31.5 | |
| Type of protection according to EN 60529 | IP65 (If a suitable and a correctly mounted mating connector are used.) | ||
| Inductivity | mH | 6 ... 8 | |
| Oscillator frequency | kHz | 2.5 | |
| Electrical position measurement system | Differential throttle | ||
Diagrams/characteristic curves
Flow characteristic linear
Transition function with stepped electric input signals
Zero flow from A → B dependent on the pressure differential Δp (command value 0 V and/or 4 mA)
Symbols/Circuit diagrams
load errorElectrical connection
load errorDimensions
load errorDownloads
 | 2-way proportional throttle valve for block installation Types FE, FEE Data Sheet | RE29202 | 2005-07-01 | English | PDF | 196k Product Groups: Proportional flow control valves |
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