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This variant draws pilot oil externally through X, drains it internally and follows a ±10 V command value. It meters 220 l/min nominal flow at operating pressure up to 350 bar, and the spool carries symbol W8.
Proportional Directional Valve 4WRKE25W8-220L-3X/6EG24TK31/A1D3M - Bosch Rexroth R900735024
BOSCH REXROTH
Original product
Net price (excl. VAT)
€5,034.37
Item
BRR-R900735024
Manufacturer no.
R900735024
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900735024
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900735024
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When system pressure drops for part of the cycle, the pilot stage needs a source of its own. In version TK the 4WRKE25W8-220L-3X receives pilot oil through the X port and returns it internally, so 220 l/min nominal flow can still be metered cleanly. The command value is applied as ±10 V.
Benefits
- External pilot oil supply through X, internal pilot oil return
- Pilot stage keeps working when pressure in the P line collapses
- 220 l/min nominal flow, flow rate up to 870 l/min
- ±10 V command value, on-board electronics, 24 V DC supply
- 18.04 kg weight, operating pressure up to 350 bar
Technical data
| Connection diagram | ISO 4401-08-08-0-05 |
| Max. flow | 870 l/min |
| Product family | 4WRKE |
| Type of connection | Subplate mounting |
| Nominal flow | 220 l/min |
| Supply voltage | 24 VDC |
| Connectivity | Analog, command value ±10 V |
| Number of switching positions | 3 |
| Hydraulic fluid | HL |
| Number of ports | 4 |
| Electrical connection description | Connector 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol W8 |
| 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 | 18.04 kg |
Applications
Circuits like this appear on presses with an unloading phase and on accumulator driven systems. Spool symbol W8 connects the ports in the centre position as shown in the hydraulic symbol. Mounting is on size 25 subplates.
Manufacturer
Bosch Rexroth, material number R900735024. The type code 4WRKE25W8-220L-3X/6EG24TK31/A1D3M defines size, spool symbol, pilot oil routing and command value type without ambiguity.
| Hersteller-Nr | R900735024 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 18.040000 |
| 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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