Артикул: RX7553
Directional high-response cartridge valve, pilot-operated 2WRC(E)...-1X/S
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Description
- Size 63 … 160
- Component series 1X
- Maximum operating pressure 420 bar
- Maximum flow 50000 l/min
Features
- 2-way cartridge valve
- Pilot control valve: 2-stage directional servo valve
- Position sensing of the control spool by means of an inductive position transducer
- Normalized:
- Installation dimensions according to ISO 7368 - Control spool in seat or spool design
- External control electronics or integrated electronics (OBE), optional
- Typical applications:
– Forging manipulators
– Press cylinders
– Die casting machines
Product description
Valves of type 2WRC(E) are pilot-operated, 3-stage directional high-response cartridge valves. They control the quantity and direction of a flow and are mainly used in control loops.
Set-up
The valves consist of the following assemblies:
- 2-stage pilot control valve (1)
- with dry torque motor
- low-friction nozzle flapper plate amplifier
- mechanical feedback of the control spool position
- Main control spool (2) for flow control
- An inductive position transducer (3) the core (4) of which is attached to the main control spool (2) of the third stage
- External control electronics or integrated electronics (OBE) (5).
Function
In the control electronics, command and actual values are compared and the torque motor of the pilot control valve is actuatedn with a proportional current according to the control deviation.
The pilot control valve (1) takes a proportionally controlled position and controls the flows in and out of the control chambers A (6) and B (7), which actuate the main control spool (2) through the closed valve control loop up to 0 control deviation.
This means that the stroke of the main control spool (2) is regulated proportionally to the command value. It must be noted that the flow also depends on the valve pressure drop.
Valve features
The flow can pass through the valve from A to B or from B to A.
The control spool (seat design) closes or opens at 2% of the command value. At lower command values, the valve control loop attempts to guide the control spool, thus presses it onto the seat at full pilot pressure and blocks the connection in a leakage-free way.
The specified switching times only apply to the control area of the valve. At command value steps from the seat to lower opening values, additional delay times occur.
The opening point of 2% (= 0.2 V) is set at the factory. When the pilot control valve (1) or the control electronics is exchanged, the opening point can be readjusted by shifting the position transducer coil (3) by means of the nut (SW13).
Notes:
- Power failure at the pilot control valve leads to an undefined position of the main control spool (2).
- Preferably, port B should be connected to the actuator.
Type code
01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | |||
2 | WRC | ‒ | 1X | / | S | / | * |
01 | 2 main ports | 2 |
02 | Directional high-response cartridge valve, pilot-operated | WRC |
03 | For external analog electronics | no code |
With integrated electronics (OBE) | E | |
04 | Size 63 | 63 |
Size 80 | 80 | |
Size 100 | 100 | |
Size 125 | 125 | |
Size 160 | 160 | |
Control spool, flow characteristic | ||
05 | Standard cone seat (linear) | K001 |
Double cone (linear fine control range) | D001 | |
Control window (progressive fine control range) | S001 | |
06 | Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) | 1X |
Pilot control valve | ||
07 | Directional servo valve | S |
Power supply | ||
08 | External control electronics | no code |
Integrated electronics (OBE) | ||
Direct voltage 24 V | G24 | |
Direct voltage 15 V | G15 | |
Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") | ||
09 | NBR seals | M |
FKM seals | V | |
10 | Further details in the plain text | * |
Technical data
general
Size | 63 | 80 | 100 | 125 | 160 | ||
Installation position; commissioning | any, preferably horizontal | ||||||
Weight | kg | 56 | 114 | 198 | 357 | 635 | |
Storage temperature range | °C | -20 … +80 | |||||
Ambient temperature range | "WRCE" | °C | -20 … +60 | ||||
"WRC" | °C | -20 … +70 |
hydraulic
Size | 63 | 80 | 100 | 125 | 160 | |||
Maximum operating pressure | Main stage | Anschluss A | bar | 420 | ||||
Port B | bar | 420 | ||||||
Pilot control valve | Port X | bar | 315 | |||||
Port Y | Pressure peaks < 100, static < 10 | |||||||
Minimum pilot pressure (in % of the system pressure) | "K001" | % | 15 | |||||
"D001"; "S001" | % | 45 | ||||||
Nominal flow (qVnom –10 % at Δp = 5 bar) | "K001" | l/min | 2600 | 4100 | 6300 | 10100 | 17000 | |
"D001" | l/min | 2300 | 3600 | 5800 | 9200 | 15000 | ||
"S001" | l/min | 1800 | 3000 | 5200 | 7800 | 13300 | ||
Maximum flow | "K001"; "D001" | l/min | 5500 | 9000 | 14000 | 22000 | 35000 | |
"S001" | l/min | 8000 | 13000 | 20000 | 30000 | 50000 | ||
Pilot flow 1) | l/min | 42 | 135 | 165 | 320 | 430 | ||
Zero flow at the pilot control valve | see "characteristic curves" | |||||||
Control flow | cm³ | 36.3 | 67.9 | 132.5 | 313.4 | 565.5 | ||
Switching time | 200 bar | Stroke 50 % | ms | 37 | 32 | 45 | 50 | 70 |
Stroke 100 % | ms | 70 | 50 | 75 | 90 | 120 | ||
315 bar | Stroke 50 % | ms | 30 | 25 | 35 | 40 | 60 | |
Stroke 100 % | ms | 60 | 40 | 60 | 70 | 100 | ||
Hydraulic fluid | see table "Hydraulic fluid" | |||||||
Hydraulic fluid temperature range | Recommended | °C | +40 … +50 | |||||
Maximum admissible | °C | -20 … +80 | ||||||
Viscosity range | Recommended | mm²/s | 30 … 45 | |||||
Maximum admissible | mm²/s | 20 … 380 | ||||||
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) | Pilot control valve | Class 18/16/13 | ||||||
Main valve | Class 20/18/15 |
1) | Stepped input signal (seat position at 100%, pilot pressure 315 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, HLPD, HVLP, HVLPD | NBR, FKM | DIN 51524 | 90220 | |
Bio-degradable | Insoluble in water | HETG | 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: Hydrotherm 46M, Renosafe 500; | NBR | ISO 12922 | 90223 | |
Important information on hydraulic fluids:
|
static / dynamic
Hysteresis | % | ≤ 0.5 |
Response sensitivity | % | ≤ 0.2 |
Range of inversion | % | ≤ 0.2 |
electrical
Voltage type | Direct voltage | ||
Type of signal | analog | ||
Valve protection to EN 60529 | IP65 (If a suitable and a correctly mounted mating connector are used.) | ||
Zero calibration | % | ≤ 1 | |
Zero shift upon change of | Hydraulic fluid temperature | %/10 K | ≤ 0.3 |
Return flow pressure in Y (0 … 10 % of the pilot pressure) | %/bar | ≤ 0.3 | |
Control pressure in X | %/100 bar | ≤ 0.7 |
(For applications outside these values, please consult us!)
Diagrams/characteristic curves
(measured with HLP32, ϑOil = 40 ±5 °C)
Zero flow at the pilot control valve
Nominal flow
(Δp = 5 bar)
Symbols/Circuit diagrams
Simplified
Integrated electronics (OBE) | External control electronics |
Detailed
Notice:
Representation according to ISO 1219-1.
Electrical connection
Block diagram / controller function block
Integrated electronics (OBE)
Effect of the control:
A positive signal at pin D and a reference potential at pin E results in flow A → B or B → A
Connector pin assignment
| Interface assignment | ||
Pin | Signal | "G24" | "G15" |
A | Power supply | +24 VDC | +15 VDC |
B | 0 VDC | -15 VDC | |
C | Enable (+24 V) 1) | Reference to pin A, B | |
D | Differential command value input | 0 ... +10 V | 0 ... +10 V |
E | |||
F | Actual value | +0,2 ... +10 V Reference is pin B | +0,2 ... +10 V Reference is pin C |
PE | Protective ground | Functional ground (directly connected to the valve housing) |
1) | Without enable = SO37 ( –37 attached to the type code) |
Power supply :
- +24 VDC ±6 V; full bridge rectification with smoothing capacitor 2200 µF = Imax = 230 mA
- ±15 VDC ±0.45 V; stabilized and smoothened; Imax = 180 mA
Notices:
- Do not connect PE if the valve has already been grounded via the system.
- Command value and actual value have the same polarity.
- Electrical signals provided via control electronics (e.g. actual value) must not be used to switch off safety-relevant machine functions.
- Mating connectors, separate order, see "Accessories" and datasheet 08006.
Nominal command value range
0 … +10 V (0 … 100 %)
- In case of slow command value modification from 0.2 V ... 10 V, the actual value follows the command value within ±0.1 V.
- At a command value step to +10 V, the actual value can temporarily reach values of up to approx. +10.5 V.
- In the command value range of 0 … +0.2 V, the actual value remains constant at 0.2 V.
Dimensions
Size 63
Dimensions in mm
1.1 | Pilot control valve (directional servo valve NG6) |
2 | Socket |
3 | Mating connectors for valves with round connector, 6-pole, separate order, see "Accessories" |
4 | Mating connectors, separate order, see "Accessories" |
5 | Space required to remove the mating connector |
6 | Cabling ("WRCE") |
7 | Valve mounting screws (included in the scope of delivery) |
8 | Locking pin for locating hole |
9 | Identical seal rings for ports X and Y |
10 | Name plate |
11.1 | Measuring port MASt for control pressures, threaded coupling G1/4 |
11.2 | Measuring port MBSt for control pressures, threaded coupling G1/4 |
12 | Transport aid |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
Size 80
Dimensions in mm
1.2 | Pilot control valve (directional servo valve NG10) |
2 | Socket |
3 | Mating connectors for valves with round connector, 6-pole, separate order, see "Accessories" |
4 | Mating connectors, separate order, see "Accessories" |
5 | Space required to remove the mating connector |
6 | Cabling ("WRCE") |
7 | Valve mounting screws (included in the scope of delivery) |
8 | Locking pin for locating hole |
9 | Identical seal rings for ports X and Y |
10 | Name plate |
11.1 | Measuring port MASt for control pressures, threaded coupling G1/4 |
11.2 | Measuring port MBSt for control pressures, threaded coupling G1/4 |
12 | Transport aid |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
Size 100
Dimensions in mm
1.2 | Pilot control valve (directional servo valve NG10) |
2 | Socket |
3 | Mating connectors for valves with round connector, 6-pole, separate order, see "Accessories" |
4 | Mating connectors, separate order, see "Accessories" |
5 | Space required to remove the mating connector |
6 | Cabling ("WRCE") |
7 | Valve mounting screws (included in the scope of delivery) |
8 | Locking pin for locating hole |
9 | Identical seal rings for ports X and Y |
10 | Name plate |
11.1 | Measuring port MASt for control pressures, threaded coupling G1/4 |
11.2 | Measuring port MBSt for control pressures, threaded coupling G1/4 |
12 | Transport aid |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
Size 125
Dimensions in mm
1.3 | Pilot control valve (directional servo valve NG16) |
2 | Socket |
3 | Mating connectors for valves with round connector, 6-pole, separate order, see "Accessories" |
4 | Mating connectors, separate order, see "Accessories" |
5 | Space required to remove the mating connector |
6 | Cabling ("WRCE") |
7 | Valve mounting screws (included in the scope of delivery) |
8 | Locking pin for locating hole |
9 | Identical seal rings for ports X and Y |
10 | Name plate |
11.1 | Measuring port MASt for control pressures, threaded coupling G1/4 |
11.2 | Measuring port MBSt for control pressures, threaded coupling G1/4 |
12 | Transport aid |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
Size 160
Dimensions in mm
1.3 | Pilot control valve (directional servo valve NG16) |
2 | Socket |
3 | Mating connectors for valves with round connector, 6-pole, separate order, see "Accessories" |
4 | Mating connectors, separate order, see "Accessories" |
5 | Space required to remove the mating connector |
6 | Cabling ("WRCE") |
7 | Valve mounting screws (included in the scope of delivery) |
8 | Locking pin for locating hole |
9 | Identical seal rings for ports X and Y |
10 | Name plate |
11.1 | Measuring port MASt for control pressures, threaded coupling G1/4 |
11.2 | Measuring port MBSt for control pressures, threaded coupling G1/4 |
12 | Transport aid |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
Valve mounting screws (included in the scope of delivery)
Size | Quantity | Hexagon socket head cap screws |
63 | 4 | ISO 4762 - M30 x 220 -10.9 Tightening torque MA = 2000 Nm ±10 % |
80 | 8 | ISO 4762 - M24 x 220 -10.9 Tightening torque MA = 1000 Nm ±10 % |
100 | 8 | ISO 4762 - M30 x 290 -10.9 Tightening torque MA = 2000 Nm ±10 % |
125 | 8 | ISO 4762 - M36 x 300 -10.9-flZn/nc/480h/C Tightening torque MA = 2800 Nm ±10 % |
160 | 12 | ISO 4762 - M42 x 420 -10.9-flZn/nc/480h/C Tightening torque MA = 4500 Nm ±10 % |
Notice:
For tightening, use a manual torque wrench with a tolerance ≤10 %.
Installation bore
Dimensions in mm
1 | Depth of fit, minimum dimension |
2 | The ports P, T and B can be positioned around the central axis of port A. However, it must be observed that the mounting bores and the control bores are not damaged. |
Installation dimensions according to ISO 7368
NG | 63 | 80 | 100 | 125 | 160 | |
ØD1H7 | mm | 120 | 145 | 180 | 225 | 300 |
ØD2H7 | mm | 116 | 140 | 174 | - | - |
ØD3H7 | mm | 90 | 110 | 135 | - | - |
ØD4 | mm | 63 | 80 | 100 | 150 1) | 200 1) |
ØD5 | mm | 48 | 60 | 75 | - | - |
ØD6H7 | mm | 90 | 110 | 135 | 200 | 270 |
ØD7 | mm | 63 | 80 | 100 | 125 | 200 |
H1 2) | mm | 130 | 175 | 210 | 257 | 370 |
H2 2) | mm | 155 | 205 | 245 | 300 | 425 |
H3 2) | mm | 95 | 130 | 155 | 192 | 268 |
H4 | mm | 40 2) | 40 | 50 | 40 2) | 50 |
H5 | mm | 20 | 25 | 29 | 31 | 45 |
H7 | mm | 85 | 125 | 155 | - | - |
H8 | mm | 165 | 215 | 270 | - | - |
H9 | mm | 195 | 245 | 305 | - | - |
H10 | mm | 57 | 90 | 112 | - | - |
H11 | mm | 137 | 180 | 225 | - | - |
H12 | mm | 33 | 60 | 75 | - | - |
H13 | mm | 28 | 25 | 32 | - | - |
H16 | mm | 4 | 5 | 5 | 5.5 | 5.5 |
H17 | mm | 4 | 5 | 5 | 7 | 8 |
H18 2) | mm | 3.5 | 5 | 5 | 2.5 | 2 |
H19 | mm | 4 | 5 | 7.5 | - | - |
H20 | mm | 4 | 5 | 5.5 | - | - |
W | mm | 0.05 2) | 0.1 | 0.2 2) | 0.2 2) | 0.2 2) |
R1 max | mm | 4 | 4 | 4 | 4 | 4 |
R2 max 2) | mm | 1 | 1 | 1 | 1 | 1 |
1) | Maximum dimension |
2) | Deviating from ISO 7368 |
Dimensions in mm
Dimensions in mm
Installation dimensions according to ISO 7368
NG | 80 | 100 | |
D8 | M24 | M30 | |
ØD9 max | mm | 16 | 20 |
ØD10 | mm | 10 | 10 |
H21 1) | mm | 50 | 63 |
L1 | mm | 250 | 300 |
L2 | mm | 200 | 245 |
1) | Deviating from ISO 7368 |
Dimensions in mm
Dimensions in mm
1 | Bore for locating pin |
Notice:
Tolerances according to: General tolerances ISO 2768-mK
Size | Installation dimensions according to ISO 7368 |
63 | 7368-12-12-1-16 |
80 | 7368-13-13-1-16 |
100 | 7368-14-14-1-16 |
125 | 7368-15-15-1-16 |
160 | 7368-16-16-1-16 |
Accessories
Mating connectors for valves with round connector, 6-pole + PE
7P Z31
Mating connectors for valves with round connector, 6-pole + PE
7P Z31
- For valves with round connector according to EN 175201-804, 6-pole + PE as well as 6-pole, compatible with VG 95328
Downloads
Directional high-response cartridge valve, pilot-operated Data Sheet | RE29135 | 2020-09-01 | English | PDF | 1.1MB Product Groups: Proportional flow control valves Type WRC…S |
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