Артикул: RX7242
Freewheeling valve Hägglunds VFWCB 600 Includes valves for ATEX environment
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Цена по запросу
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Description
- Valid for: Hägglunds motor CA, CB, CBM
- Maximum flow 1000 l/min
- Nominal flow 600 l/min
- For closed and open loop hydraulic system
Features
- Compact and robust design
- Multifunctional
- Mounted directly on Hägglunds motors
- Detent function on pilot valve
- Possible for remote control
Product description
General
All Hägglunds Compact motors can be operated in freewheeling mode by retracting the pistons and allowing the cylinder block to freely rotate on its bearings.
The valve is designed for use with Compact motors CA, CB and CBM and provides free-wheeling of the motor by means of disconnecting the motor from the main lines and connecting both motor ports to T which has to be drained to tank. The valve can be mounted directly onto the motor and can be used in both open and closed loop applications. Maximum operating pressure is 350 bar and maximum flow 1000 l/min. Nominal flow is 600 l/min.
The valve is available in three main configurations:
- VFWCB 600 E (Free-wheeling valve electrically operated)
- VFWCB 600 H (Free-wheeling valve hydraulically operated)
- VFWCB 600 M (Free-wheeling valve manually operated)
Various options are available referring to the order code.
Notice!
Only one valve is to be used on the Hägglunds CBM.
For more than one valve, contact Bosch Rexroth DC-IA/EHD.
Function
A system is required to ensure that the motor is in stationary position before switching from free wheeling position into drive position. Free-wheeling is achieved by maintaining pressure into the motor case causing the piston to be lift off the cam ring and pushed in to the cylinder block. The rotating section of the motor comprising the cylinder block, pistons and cam rollers can then rotate on the main bearings without oil flow through the motor main ports. This case pressure is generated by ensuring that there is a flow through the motor case. The case pressure shall be controlled with a pressure relief valve on the motor case drain line, maintaining a pressure of 1 ... 1.5 bar, (one of the D ports). A typical response for a Hägglunds CA210 motor with casing flow of 60 l/min would be 1 seconds to change into free-wheeling mode.
Before the motor is put into free-wheeling the pilot control valve (3) is operated, which switches the main spool (1) and connects the motor ports AM and Cm to T. T has to be connected to tank.
The shuttle valve (2) allows pilot pressure to be selected from the high pressure motor line.
Shifting from free-wheeling into operation during running will not be allowed due to risk for motor damage. For this reason the pilot control valve (3) has a detent function in order to avoid unintentional shifting during operation if for example there is a power failure to the solenoid.
When using the internal pilot valve it is important to ensure that minimum pilot pressure is available, so that drive or free-wheeling mode is fully engaged before driving the motor. External pilot pressure via Px or Pa and Pb is recommended for open loop system.
For additional information regarding free wheeling see data sheet, section technical data, for respective motor.
 |
| Shifting from free wheeling position into drive position during running of motor Damage on piston parts and camring
|
Hydraulic Circuit for VFWCB 600 E 2 U 6. Electrically operated pilot control detented valve. Internal pilot valve supply. Main spool spring return to drive position.
Dimensions in mm
| 1) | M8 thread |
Hydraulic Circuit VFWCB 600 E 2 U 7 1000. Electrically operated pilot control detented valve. Internal pilot valve supply. Main spool spring return to free-wheel position
Dimensions in mm
| 1) | M8 thread |
Hydraulic Circuit for VFWCB 600 M U 7. Manually operated pilot control detented valve. Internal pilot valve supply. Main spool spring return to free-wheel position
Dimensions in mm
| 1) | M8 thread |
Hydraulic Circuit for VFWCB 600 H Q 6. Direct hydraulic control of main spool. Main spool spring return to drive position.
Dimensions in mm
| 1) | M8 thread |
Hydraulic circuit for VFWCB 600 E 2 Q 6. Electrically operated pilot control detented valve. External pilot valve supply. Main spool spring return to drive position
Dimensions in mm
| 1) | M8 thread |
Hydraulic circuit for VFWCB 600 H 0 U 7 0 03. Hydraulic operated pilot control valve. Internal pilot valve supply. Main spool spring return to free-wheel position
Dimensions in mm
| 1) | M8 thread |
Type code
ln order to identify Hägglunds equipment exactly, the following ordering code is used. These ordering codes should be stated in full in all correspondence e.g. when ordering spare parts.
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 |
| VFWC | B | 600 |
| 01 | Freewheeling valve | VFWC |
| 02 | Version | B |
| Nominal flow | ||
| 03 | 600 l/min | 600 |
| Operation | ||
| 04 | Electrical operated | E |
| Hydraulic actuated | H | |
| Manual operated | M | |
| Electric data voltage | ||
| 05 | No | 0 |
| 12 VDC (only standard design) | 1 | |
| 24 VDC | 2 | |
| 100 VAC (only standard design) | 3 | |
| 230 VAC (only standard design) | 4 | |
| Pilot pressure supply | ||
| 06 | Internal pilot | U |
| External Pilot | Q | |
| Main spool | ||
| 07 | Spring return to drive position | 6 |
| Spring return to freewheel position | 7 | |
| Explosive environment | ||
| 08 | Non explosive environment | 0 |
| Explosive environment 3) | 1 | |
| Modification 1) | ||
| 09 | 0 ... 9 | |
| Design | ||
| 10 | Standard | 00 |
| Pilot valve with junction box (only 24 VDC) | 01 | |
| Pilot valve ATEX class (EEx) (only 24 VDC) | 02 | |
| Hydraulic operated pilot control valve. Internal pilot valve supply. Main spool spring return to free-wheel position. 2) | 03 | |
| Other special index 1) | 04 ... 99 | |
| 1) | To be filled in by Bosch Rexroth DC-IA/EHD |
| 2) | Only valid for VFWCB 600 H 0 U 6 0 0, VFWCB 600 H 0 U 7 0 0, VFWCB 600 H 0 U 6 1 0 and VFWCB 600 H 0 U 7 1 0 |
| 3) | Only valid for attribute 05 code 2 and attribute 10 code 00 and 03 |
 |
| Load drop Danger to life or risk of injury, damage to equipment!
|
Technical data
General data
| Mechanical specification | Maximum operating pressure | bar | 350 | |
| Pilot pressure (to shift main spool) | bar | 7 ... 350 | ||
| Drain pressure (to retract piston assemblies) | bar | 1 ... 1.5 | ||
| Maximum flow | l/min | 1000 | ||
| Nominal flow (see section "Pressure loss diagram") | l/min | 600 | ||
| Hydraulic fluid (refer to data sheet RE 15414 Hydraulic fluid quick reference) | Fluid temperature range | °C | -25 … +70 | |
| Viscosity range | mm²/s | 20 … 380 | ||
| Recommended operating viscosity | mm²/s | 40 | ||
| Pilot valve interface | CETOP 03 | |||
| Weight | Free-wheeling valve typical VFWCB 600 | kg | 40 | |
| Pilot valve: Connectors EN 175301-803 / Sea water protected | Supply voltage | VDC | 24 | |
| Solenoid power | W | 30 | ||
| Solenoid current | A | 1.25 | ||
| Solenoid protection class (EN 175301-803) | IP65 | |||
| Solenoid protection class | IP65 (sea water protective) | |||
| Cable area | min. | mm² | 1 | |
| Cable size | Ø | mm | 10 ... 14 | |
| Connection | Pin 1 | VDC | 24 | |
| Pin 2 | VDC | 0 | ||
Explosion protection information, hydraulic operated VFWCB 600
| Area of application according to ATEX directive 2014/34/EU | IM2, II2G, II2D, II3G, II3D | |
| Protection of the valve by liquid immersion according to | k (EN 13463-8) | |
| Constructional safety according to | c (EN 13463-5) | |
| Maximum surface temperature | °C | + 100 |
| Temperature class | T4 | |
| Conforms to “Equipment and components intended for use in potentially explosive atmospheres and in underground mines” | EN 1710 | |
| ATEX Classification of valve | II 2 G D c k T4 / I M2 c k T4 | |
| Ambient temperature range | °C | -25 … +50 |
Explosion proof information, pilot valve electrical operated
Electrical operated / data
| Voltage | VDC | 24 |
| Voltage tolerance | % | ± 10 |
| Nominal power at ambient temperature +20 ºC | W | 17 |
| Maximum power with 1.1 x nominal voltage and an ambient temperature of 20 °C | W | 20.6 |
| Protection class | IP66 |
Explosion protection information
| Area of application according to directive 2014/34/EU | II 2G | |
| Type of protection valve | c (EN 13463-5) | |
| Maximum surface temperature | °C | + 135 |
| Temperature class | T4 | |
| Type of protection valve solenoid according to EN 60079-7 / EN 60079-18 | Ex eb mb IIC T4 Gb | |
| Type examination certificate solenoid | KEMA 02ATEX2240 X | |
| IECEx Certificate of Conformity solenoid | IECEx DEK 1268X | |
| Ambient temperature range | °C | -20 … +70 |
Pressure loss diagram
Pressure loss diagram - P to Am, Cm to C
Viscosity 40 mm2/s
Pressure loss diagram - Pressure drop Am, Cm to T for flow taking the motor from drive to free-wheel
Viscosity 40 mm2/s
Dimensions
VFWCB 600 E
Dimensions in mm
VFWCB 600 H, VFWCB 600 H Ex
Dimensions in mm
VFWCB 600 M
Dimensions in mm
VFWCB 600 E EEX
Dimensions in mm
VFWCB 600 E, Sea water protected pilot valve
Dimensions in mm
VFWCB 600 H, special index 03
Dimensions in mm
Mounting
Installation
Fitting the VFWCB 600 valve on Hägglunds CA,CB
Refer also to the Installation and Maintenance Manual for actual motor.
 |
| Contamination of the system! Risk of damage components.
|
- Remove the SAE flanges from motor mounting surface and the plastic plugs from the valve mounting surface.
- Place the O-rings (included in delivery) in their proper position on the valve mounting surface.
- Use clean grease to keep O-rings fixed during assembly.
- Mount the valve against the motor with the ports in the correct position.
- Re-instate paint finish and protect exposed surfaces.
 |  |
| Hägglunds CA | Hägglunds CB |
| Position | Description |
| 1 | 6 pcs 1/2 UNC x 127 (included in delivery) |
| 2 | Valve VFWCB 600 |
| 3 | 2 pcs O-rings ø47.22 x 3.53 NBR 90 (included in delivery) |
Fitting the valve on Hägglunds CBM
Refer also to the Installation and Maintenance Manual for actual motor.
 |
| Contamination of the system! Risk of damage components.
|
- Remove the SAE flanges from motor mounting surface and the plastic plugs from the adapter/valve mounting surfaces.
- Place the O-rings (6) (included in delivery) in their proper position on the adapter (4) mounting surface.
- Use clean grease to keep O-rings fixed during assembly.
- Mount the adapter (4) onto the motor with the ports in their correct position.
- Place the O-rings (3) (included in delivery) in their proper position on the valve (2) mounting surface.
- Use clean grease to keep O-rings fixed during assembly.
- Mount the valve (2) against the adapter (4) with the ports in their correct position.
- Re-instate paint finish and protect exposed surfaces.
Note!
Mounting the valve on Hägglunds CBM, adapter R939011952, VA 1000 15 must be ordered separately!
Hägglunds CBM
| Position | Description |
| 1 | 6 pcs 1/2 UNC x 127 (included in delivery) |
| 2 | Valve VFWCB 600 |
| 3 | 2 pcs O-rings ø47.22 x 3.53 NBR 90 (included in delivery) |
| 4 | Adapter VA 1000 15 not included in delivery |
| 5 | 8 pcs 3/4-UNC x 178 (included in VA 1000 15) |
| 6 | 2 pcs O-ring 56.74 x 3.53 NBR 90 (included in VA 1000 15) |
Installation drawing – VFWCB 600 E, VFWCB 600 E Ex
Refer to dimensional drawing: 078 3920
Dimensions in mm
Installation drawing – VFWCB 600 H, VFWCB 600 H Ex
Refer to dimensional drawing: 078 3921
Dimensions in mm
Installation drawing – VFWCB 600 M
Refer to dimensional drawing: 078 3922
Dimensions in mm
| Connection | Description | Connection |
| P, C | Main connection | SAE 1 1/4" 1) |
| T | Drain connection | G 1 |
| Px | External Pilot | G 1/4 |
| Pa, Pb |
| 1) | J815C, Code 62, 414 bar |
Electrical installation
Electrical circuit connection, standard
Circuit diagram standard terminal box
Electrical circuit connection, Ex
Electrical connection, Ex terminal box
Properties of the connection terminals and mounting elements
| Position | Function | Connectable line cross-section | |
| 1 | Operating voltage connection | Single-wire | 0.75 … 2.5 mm2 |
| Finely stranded | 0.75 … 1.5 mm2 | ||
| 2 | Connection for protective earthing conductor | Single-wire max. | 2.5 mm2 |
| Finely stranded max. | 1.5 mm2 | ||
| 3 | Connection for potential equalization conductor | Single-wire | 4 … 6 mm2 |
| Finely stranded min. | 4 mm2 | ||
Circuit diagram Ex terminal box
Cable gland
| Type approval |
| II 2G Ex e IIC Gb |
| Threaded connection |
| M20x1.5 |
| Protection class according to EN 60529 |
| IP66 (with correctly installed electrical connection) |
| Line diameter | mm | 7 ... 10.5 |
| Sealing |
| Outer sheath sealing |
Connection line
| Line type |
| Non-armored cables and lines (outer sheath sealing) |
| Temperature range | °C | -30 … ≥110 |
Information
Required and additional documents
| Title | Document no | Document type |
| Hydraulic fluid quick reference | RE 15414 | Data sheet |
| Hägglunds valve adapters | RE 15383 | |
| Directional spool valves, direct operated, with solenoid actuation | RE 23178-XE | |
| Freewheeling valve VFWCB 600 E | 078 3920 1) | Dimension drawing |
| Freewheeling valve VFWCB 600 H | 078 3921 1) | |
| Freewheeling valve VFWCB 600 M | 078 3922 1) |
| 1) | Documents only available at LHD extranet. Contact your Bosch Rexroth representative for information. |
Documents at Bosch Rexroth Media Directory
Safety Instructions
Warning signs
In this manual you will find the following signs which indicate a potential hazard, which can or will cause personal injury or substantial property damage. Depending on the probability if the hazard, and how serious the injury or property damage could be, there are three levels if classification.
| Warning sign (warning triangle) | Draws attention to the hazard |
| Signal word | Identifies the degree of hazard |
| Type of risk | Specifies the type or source of the hazard |
| Consequences | Describes the consequences of non-compliance |
| Precautions | Specifies how the hazard can be prevented |
The signal words have the following meaning:
| Warning sign, signal word | Meaning |
 | Indicates a dangerous situation which will cause death or severe personal injuries if not avoided. |
 | Indicates a dangerous situation which may cause death or severe personal injuries if not avoided. |
 | Indicates a dangerous situation which may cause minor or medium personal injuries if not avoided. |
 | Material damage: the product or its environment could be damaged. |
General safety instructions
 |
| Danger from excessively high pressure! Danger to life or risk of injury, damage to equipment! Using the valve above the permissible maximum pressure can cause valve burst and hydraulic fluid to escape under high pressure.
|
| Pressurized valve Danger to life risk of injuries when working on valve in system not being depressurized.
|
Safety instructions for ATEX environment
 |
| Unsafe work on the valve Danger to life or risk of injury, damage to equipment!
|
 |
| Escaping oil mist! Risk of explosion, fire health hazard, environmental pollution.
|
| Static discharge Cleaning the valve with a dry rug may lead to explosions through electrostatic discharge that may cause severe injuries and even death.
|
| Lack of grounding Risk of explosion that may cause severe injuries and even death.
|
| Painting Risk of explosion that may cause severe injuries and even death.
|
Ordering codes
Downloads
 | Hägglunds VFWCB 600 Data Sheet | RE15380 | 2016-11-01 | English | PDF | 1.5MB Product Groups: Hägglunds VFWCB 600 Freewheeling valve |
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