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Bosch Rexroth | DB20-1-5X100Y

DB20-1-5X/100Y

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The Bosch Rexroth DB20-1-5X/100Y belongs to the DB Pressure Relief Valves series and is a pilot-operated pressure relief valve. This model is designed for subplate mounting and features a mounting configuration following the ISO 6264-08-13-*-97 porting pattern. The main spool diameter measures 24 mm, and it uses a rotary knob for pressure adjustment. Its maximum operating pressure reaches up to 350 bar with set pressure specified at 100 bar. The valve is compatible with size 25 (NG25) systems and allows for a maximum flow rate of 500 liters per minute through the subplate. The pilot oil is supplied internally and returned externally via port Y, with both port T and port Y supporting pressures up to 315 bar. Cleanliness is maintained to ISO 4406 class 20/18/15, and installation requires four M16 x 50 screws tightened to 185 Nm.

Technical Specifications

Adjustment Type
Rotary Knob

Cleanliness Class
ISO 4406 20/18/15

Main Spool Diameter
24 mm

Max Pressure Port T
315 bar

Max Pressure Port Y
315 bar

Maximum Flow (subplate)
500 l/min

Maximum Operating Pressure
350 bar

Mounting
Subplate Mounting

Mounting Screws
4x M16 x 50 (ISO 4762)

Pilot Oil Return
External (Y)

Pilot Oil Supply
Internal

Porting Pattern
ISO 6264-08-13-*-97

Screw Tightening Torque
185 Nm

Set Pressure (max)
100 bar

Size
Size 25 (NG25)

Valve Type
Pilot-Operated Pressure Relief

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