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The choice between size 25 and size 32 is decided by flow. The size 25 DBW20B2-5X relieves up to 500 l/min, limits pressure across 4 to 315 bar, switches to spool symbol B on 24 VDC and is rated for a maximum operating pressure of 350 bar.

Pressure Relief Valve DBW20B2-5X/315S6EG24N9K4R12/12 - Bosch Rexroth R978898122

BOSCH REXROTH Original product
Net price (excl. VAT)
€2,245.53
Item BRR-R978898122
Manufacturer no. R978898122
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Brand new Specialist dealer since 2009 Original product Worldwide shipping
Product data
Manufacturer no.R978898122
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R978898122
Frequently Bought Together

A power unit at 500 l/min is served by size 25 and saves the larger mounting block. Within that frame the pilot-operated poppet valve DBW20B2-5X/315S6EG24N9K4R12/12 limits pressure between 4 and 315 bar at a maximum operating pressure of 350 bar.

Benefits

  • Up to 500 l/min in size 25 to connection diagram ISO 6264-08-13.
  • Pressure adjustment range 4 to 315 bar, rated to a maximum of 350 bar.
  • Spool symbol B in two switching positions with 24 VDC solenoid actuation.
  • Internal hexagon with protective cap secures a pressure setting.
  • 5.88 kg, NBR seals for HL hydraulic fluid.

Technical data

Connection diagramISO 6264-08-13
Max. flow500 l/min
Product familyDB.10-30
Type of connectionSubplate mounting
Supply voltage24 VDC
Number of switching positions2
Hydraulic fluidHL
Number of ports2
Electrical connection descriptionConnector, 3-pole (2 + PE) according to EN 175301-803
Spool symbolB
Operating pressure, max.350 bar
Size25
SealsNBR
Electrical connectorConnector, 3-pole (2 + PE)
Type of actuationwith solenoid actuation
Weight5.88 kg

Application

It is used on medium duty power units, for instance on presses, clamping systems and machine tools. A connector to EN 175301-803 simplifies assembly, while poppet design keeps a circuit tight at rest.

Manufacturer

Bosch Rexroth lists this pilot-operated pressure relief valve DBW20B2-5X/315S6EG24N9K4R12/12 under material number R978898122. Data sheets RE 25802 and RE 25802-B show characteristic curves, installation dimensions and the connection diagram. Mounting dimensions follow ISO 6264-08-13 with two ports.

More Information
Weight 5.880000
Manufacturer Bosch Rexroth
Hersteller-Nr R978898122
Zolltarifnummer 84812010
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