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This size 25 valve serves two habits at once: the target value between 3.8 and 200 bar is dialled in by hand on a rotary knob, while a 24 VDC coil takes care of unloading. Up to 500 l/min pass through the threaded connection and the valve weighs 6.5 kg.
Pressure Relief Valve DBW 25 BG1-5X/200-6EG24N9K4/12 - Bosch Rexroth R978911837
BOSCH REXROTH
Original product
Net price (excl. VAT)
€2,122.37
Item
BRR-R978911837
Manufacturer no.
R978911837
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R978911837
Country of originGermany
ConditionNew
Artikel
BRR-R978911837
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Commissioning calls for quick changes of the pressure setting, series production calls for electrical unloading. This size 25 version offers both, a rotary knob covering 3.8 to 200 bar and a mounted directional spool valve on 24 VDC that puts the line back to tank level.
Advantages
- Manual adjustment on a rotary knob between 3.8 and 200 bar
- Solenoid unloading on 24 VDC through a mounted directional spool valve
- Flow up to 500 l/min, maximum operating pressure 350 bar
- Threaded connection with two ports to ISO 6264-08-13
- Poppet seat pressure stage, 6.5 kg, NBR seals for HL fluid
Technical data
| Connection diagram | ISO 6264-08-13 |
| Max. flow | 500 l/min |
| Product family | DB.10-30 |
| Type of connection | Threaded connection |
| Supply voltage | 24 VDC |
| Number of switching positions | 2 |
| Hydraulic fluid | HL |
| Number of ports | 2 |
| Electrical connection description | Connector 3-pole (2 + PE) according to EN 175301-803 |
| Spool symbol | B |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | NBR |
| Electrical connector | Connector, 3-pole (2 + PE) |
| Type of actuation | with solenoid actuation |
| Weight | 6.5 kg |
Application
It is typically fitted to test rigs and special machines where the target value changes from one specimen to the next. The knob makes a tool unnecessary. Between two test runs the pump keeps turning unloaded through the solenoid stage.
Manufacturer
Bosch Rexroth lists this version as R978911837 in the DB.10-30 product family. The relation between travel and pressure is plotted in the data sheet.
| Weight | 6.500000 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R978911837 |
| GPSR Herstellerdaten | Bosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com |
| Artikelzustand | New |
| Artikel-Authentizität | Original product |
| Country of Manufacture | Germany |
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