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For medium sized axes a 4...20 mA current interface is the more robust choice compared with a voltage command. This 4WRZE25 with spool symbol W6 uses it to control 220 l/min nominal flow at 350 bar. Pilot oil is taken internally and returned externally.
Proportional Directional Valve 4WRZE25W6-220-7X/6EG24N9EK31/F1M - Bosch Rexroth R900746205
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,131.33
Item
BRR-R900746205
Manufacturer no.
R900746205
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900746205
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900746205
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Total price
In large plants thirty metres of cable between cabinet and valve are quickly reached, and a voltage signal loses accuracy over that distance. This 4WRZE25 therefore takes its command as a 4...20 mA current and sets 220 l/min nominal flow at 350 bar.
Benefits
- The 4...20 mA interface stays accurate over long cable runs and reveals a broken wire.
- 220 l/min nominal flow for medium axes, up to 870 l/min maximum.
- Internal pilot supply saves the feed line, external return relieves the pilot chamber.
- On-board electronics in the valve, 24 VDC supply through one connector.
- 350 bar operating pressure, NBR seals, HL hydraulic fluid.
Technical data
| Conformity, evidence | UKCA - Electromagnetic compatibility (EMC) SI2016/1091 |
| Connection diagram | ISO 4401-08-08-0-05 |
| Max. flow | 870 l/min |
| Product family | 4WRZ(E) |
| Type of connection | Subplate mounting |
| Nominal flow | 220 l/min |
| Conformity | UKCA |
| Supply voltage | 24 VDC |
| Connectivity | Analog, command value 4...20 mA |
| Number of switching positions | 3 |
| Hydraulic fluid | HL |
| Number of ports | 4 |
| Electrical connection | Connector 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol W6 |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | NBR |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 20.2 kg |
Applications
The valve is installed in widely spread plants such as sawmills, recycling presses and steel construction machinery, where the control cabinet stands far from the actuator. Size 25 with the ISO 4401-08-08-0-05 pattern is the usual interface in this power class. The weight is 20.2 kg.
Manufacturer
This product comes from Bosch Rexroth and carries material number R900746205. Characteristic curves and installation dimensions are given in data sheet RE 29115 and RE 07600-B.
| Hersteller-Nr | R900746205 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 3.580000 |
| Zolltarifnummer | 84812010 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
| Position sensing | No |
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