Артикул: RX7556
Directional high-response cartridge valve, pilot-operated, with hydraulic actuation and inductive position transducer 3WRCBH
Доступно к заказу
Цена по запросу
И выбери подходящего.
Description
- Size 25 … 50
- Component series 1X
- Maximum operating pressure 315 bar
- Maximum flow 2250 l/min
Features
- 3-way directional cartridge valve
- Control spool with anti-rotation feature and control edges in servo-type quality
- Pressure-resistant up to 315 bar
- Control line A of the pilot control valve according to X generally required
- Dynamic reset "Z" (B to Z) possible for version "F" (only NG25 and 50)
- With inductive position transducer, position-controlled through the external pilot control valve and the valve electronics
- Pilot control valve at the manifold externally assigned
- Hysteresis <0.1 %, hardly measurable
- Flow characteristic, progressive with fine control edge
Product description
In connection with pilot control valves, valves of type 3WRCBH are pilot-operated directional high-response cartridge valves with 2 control edges in servo quality, P–A / A–T. They control size and direction of a flow.
The transition was designed by means of fine control edges for minimum leakage at high and linear pressure amplification. The control spool position is deflected by the pilot oil of the pilot control valve. In case X is unloaded and/or in case of power failure, the load pressure in A and the internal spring result in a control spool reset (A–T).
The control spool position is recorded by an inductive position transducer. Its signal and the valve electronics allow for position control via a pilot control valve.
An additional pilot oil port Z (only version "F" and NG25 and 50) allows for fast reset in case of low load in port A. In this connection, the pilot control valve must be connected to A–X and B–Z.
For the external position control, the following components are required:
- Pilot control valve type 4WRP(E)H 6 (separate order, see "Accessory")
- Integrated electronics (OBE) or external control electronics (separate order, see "Accessory")
- Valve block (customer side).
The pilot oil guidance in the valve block and the electrical connection design the pilot-operated valve function for control tasks in the system. In most cases, this is a process for velocity and pressure control. The process controllers of the system generate the valve signal for the control loop.
Main stage
Type 3WRCBH . VF…Z
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | ||
| 3 | WRCB | H | V | M | ‒ | 1X | / | M | * |
| 01 | 3 main ports | 3 |
| 02 | Directional high-response cartridge valve, pilot-operated | WRCB |
| 03 | Hydraulic actuation | H |
| 04 | Size 25 | 25 |
| Size 32 | 32 | |
| Size 50 | 50 | |
| 05 | Control spool with zero overlap | V |
| Area ratio at the control spool (determined at the factory) | ||
| 06 | 1:1 | no code |
| 1:1,5 | F | |
| Rated flow (Δp = 5 bar/control edge) | ||
| 07 | Size 25 | |
| 65 l/min | 65 | |
| 190 l/min | 190 | |
| Size 32 | ||
| 380 l/min | 380 | |
| Size 50 | ||
| 300 l/min | 300 | |
| 750 l/min | 750 | |
| Flow characteristic | ||
| 08 | Inflected characteristic curve, progressive with linear fine control range | M |
| 09 | Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) | 1X |
| Pilot oil port | ||
| 10 | Without | no code |
| Additional pilot oil port (Only version "F" and NG25 and 50) | Z | |
| Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") | ||
| 11 | NBR seals | M |
| 12 | Further details in the plain text | * |
Technical data
(For applications outside these values, please consult us!)
general
| Type | 3WRCBH | |||
| Size | 25 | 32 | 50 | |
| Installation position | horizontal or position transducer downwards | |||
| Earth | kg | 3.9 | 5.6 | 14.7 |
| Ambient temperature range | °C | -20 … +50 | ||
| Vibration resistance, test condition | max. 25 g, room vibration test in all directions (24h) | |||
hydraulic
| Size | 25 | 32 | 50 | ||
| Maximum operating pressure | Port P | bar | 315 | ||
| Anschluss A | bar | 315 | |||
| Port T | bar | 315 | |||
| Port X | bar | 315 | |||
| Port Z | bar | 315 | |||
| Minimum pilot pressure | bar | pA + 4 | |||
| Hydraulic fluid | see table "Hydraulic fluid" | ||||
| Hydraulic fluid temperature range | °C | -20 … +80 | |||
| Viscosity range | Recommended | mm²/s | 10 … 800 | ||
| Maximum admissible | mm²/s | 20 … 100 | |||
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) | Class 18/16/13 | ||||
| 1) | 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
| Size | 25 | 32 | 50 | ||||
| Nominal flow 1) | l/min | 65 | 190 | 380 | 300 | 750 | |
| Maximum flow | l/min | 350 | 570 | 820 | 1600 | ||
| Pilot flow 2) | l/min | 8 | 16 | 28 | |||
| Leakage flow (at 100 bar) | Pilot control valve | cm³/min | < 300 | < 500 | < 900 | ||
| Main stage | cm³/min | < 350 | < 500 | < 600 | |||
| 1) | With Δp = 5 bar/control edge; flow with deviating Δp see formula. |
| 2) | p = 100 bar; maximum dynamics |
| 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
| Size | 25 | 32 | 50 | ||
| Manufacturing tolerance | % | ≤ 10 | |||
| Switch-off behavior 1) | Pilot control valve in "fail-safe" position, main valve moves to position A-T | ||||
| Temperature drift | Zero shift < 1 % at Δϑ = 40 °C | ||||
| Actuating time 2) | A–X | ms | 33 | 28 | 60 |
| A–X; B–Z | ms | 27 | - | 50 | |
| Zero point calibration | Valve amplifier ±5% adjustable, pilot control valve with integrated electronics (OBE) set in the plant | ||||
| 1) | After electric shut-off |
| 2) | Signal step 0 … 100% at pX = 100 bar / pA = 50 bar |
electrical
| Position transducer DC/DC technology | Supply | +15 V/35 mA; -15 V/25 mA | |
| Signal (RL ≥10 kΩ) | V | 0 … ±10 |
Diagrams/characteristic curves
(measured with HLP46, ϑOil = 40 ±5 °C)
Pressure amplification
Flow/signal function
Size 25
Frequency response
(pSt = 100 bar, pA = 50 bar)
Size 32
Frequency response
(pSt = 100 bar, pA = 50 bar)
Size 50
Frequency response
(pSt = 100 bar, pA = 50 bar)
Symbols/Circuit diagrams
| "No code" version (area ratio 1:1) | Version "F…Z" (area ratio 1:1.5) |
 |  |
Pilot oil supply
| "No code" version (area ratio 1:1) | Version "F…Z" (area ratio 1:1.5) |
 |  |
Dimensions
Size 25
Dimensions in mm
| 1 | Directional high-response cartridge valve (main stage) |
| 2 | Position transducer |
| 3 | Seal ring (only version "Z") |
| 4 | Valve mounting screws (included in the scope of delivery) (see below) |
| 5 | Mating connector (included in the scope of delivery, see "Accessory") |
| 6 | Installation bore (see below) |
| 7 | Space required to remove the mating connector |
| 8 | Locating pin, version "F" |
| 9 | Locating pin |
| 10 | Name plate, version "F" |
| 11 | Name plate |
Size 32
Dimensions in mm
| 1 | Directional high-response cartridge valve (main stage) |
| 2 | Position transducer |
| 4 | Valve mounting screws (included in the scope of delivery) (see below) |
| 5 | Mating connector (included in the scope of delivery, see "Accessory") |
| 6 | Installation bore (see below) |
| 7 | Space required to remove the mating connector |
| 8 | Locating pin, version "F" |
| 9 | Locating pin |
| 11 | Name plate |
Size 50
Dimensions in mm
| 1 | Directional high-response cartridge valve (main stage) |
| 2 | Position transducer |
| 3 | Seal ring (only version "Z") |
| 4 | Valve mounting screws (included in the scope of delivery) (see below) |
| 5 | Mating connector (included in the scope of delivery, see "Accessory") |
| 6 | Installation bore (see below) |
| 9 | Locating pin |
| 11 | Name plate |
Installation bore
Dimensions in mm
| NG | 25 | 32 | 50 | |
| ØD1H7Ⓔ | mm | 45 | 60 | 90 |
| ØD2H7Ⓔ | mm | 43 | 58 | 87 |
| ØD3H7Ⓔ | mm | 34 | 55 | 68 |
| ØD4 max | mm | 22 | 28 | 44 |
| ØD5 max | mm | 21 | 26 | 39 |
| ØD6 max | mm | 6 | 8 | 10 |
| D7 | M12 | M16 | M20 | |
| ØD8H13 | mm | 6 | 6 | 8 |
| ØD9+0,2 | mm | 33.7 | 54.7 | 67.7 |
| ØD10H7Ⓔ | mm | 44 | - | 88.5 |
| ØD11 | mm | 4 | - | 6 |
| H1+0,1 | mm | 103 | 100 | 165 |
| H2+0,2 | mm | 56 | 43.5 | 87 |
| H3±0,2 | mm | 45 | 30 | - |
| H3±0,3 | mm | - | - | 66 |
| H4 | mm | 15 | 15 | 16 |
| H5 | mm | 12.5 | 18 | 20 |
| H6±0,2 | mm | 78 | 71.5 | - |
| H6±0,3 | mm | - | - | 122 |
| H7+0,3 | mm | 89 | - | - |
| H7+0,3 | mm | - | 85 | - |
| H7±0,3 | mm | - | - | 143 |
| H8 | mm | 11.5 | - | 18 |
| H8±0,2 | mm | - | 13 | - |
| H9 | mm | 2.5 | 3 | 3 |
| H10 | mm | 2.5 | 0.5 | 4 |
| H11 | mm | 14.5 | - | 21 |
| H12 | mm | - | - | 29 |
| H12-0,2 | mm | 19 | - | - |
| H13 | mm | 32 | - | 46 |
| H14 | mm | 3 | 3 | 3 |
| L1 | mm | 85 | 102 | 140 |
| L2 | mm | 85 | 102 | 140 |
| L3 | mm | 42.5 | 51 | 70 |
| L4±0,2 | mm | 58 | 70 | 100 |
| L5±0,1 | mm | 29 | 35 | 50 |
| L6±0,2 | mm | 33 | 41 | 58 |
| L7±0,2 | mm | 16 | 17 | 30 |
| T1 | mm | 25 | 35 | 45 |
| T2 min | mm | 10 | 10 | 10 |
| V | mm | 0.03 | 0.03 | 0.03 |
| W | mm | 0.05 | 0.1 | 0.1 |
| 1 | Connect port X to port A of the pilot control valve. |
| 2 | Bore for locating pin |
| 3 | Depth of fit |
| 4 | The ports P, T and Z 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. |
| 5 | Only version "Z" |
| 6 | Connect port Z to port B of the pilot control valve. |
| 7 | Not version "Z" |
Notice:
Tolerances according to: General tolerances ISO 2768-mK
Valve mounting screws (included in the scope of delivery)
| Size | Quantity | Hexagon socket head cap screws |
| 25 | 4 | ISO 4762 - M12 x 35 - 10.9-flZn/nc/480h/C (Friction coefficient μtotal = 0.09 … 0.14) Tightening torque MA = 90 Nm ±10 % |
| 32 | 4 | ISO 4762 - M16 x 50 - 10.9-flZn/nc/480h/C (Friction coefficient μtotal = 0.09 … 0.14) Tightening torque MA = 250 Nm ±10 % |
| 50 | 4 | ISO 4762 - M20 x 70 - 10.9-flZn/nc/480h/C (Friction coefficient μtotal = 0.09 … 0.14) Tightening torque MA = 450 Nm ±10 % |
Accessories
High-response directional valves, direct operated, with electrical position feedback and integrated electronics (OBE)
4WRPEH 6 -2X
High-response directional valves, direct operated, with electrical position feedback and integrated electronics (OBE)
4WRPEH 6 -2X
- Size 6
- Component series 2X
- Maximum operating pressure 315 bar
- Nominal flow 2 … 40 l/min
High-response valves with electrical position feedback (Lvdt DC/DC ±10 V)
4WRPH 6
High-response valves with electrical position feedback (Lvdt DC/DC ±10 V)
4WRPH 6
- Size 6
- Component series 2X
- Maximum operating pressure 315 bar
- Maximum flow 40 l/min
- Nominal flow 2 … 40 l/min
Valve amplifiers for high-response valves
VT-VRRA1-527-2X/V0/2STV
Valve amplifiers for high-response valves
VT-VRRA1-527-2X/V0/2STV
- Component series 2X
- Analog, Euro-card format
- For valves:
4WRL 10…35 V/V1…M-3X...
4WRL 10…35 E/W…S-3X…
4WRL 10…25 V/V1…M-3X…-750
3WRCB 25…50…M-1X…
Ordering codes
Currently eShop is not available. Please try again later.Downloads
Нет отзывов об этом товаре.