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Bosch Rexroth | DBW20B1-5X200-6EW110N9K412

DBW20B1-5X/200-6EW110N9K4/12

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The Bosch Rexroth DBW20B1-5X/200-6EW110N9K4/12 is part of the DB Pressure Relief Valves series. This valve features a normally open directional valve function and supports a solenoid voltage of 110 VAC. It has a nominal size of NG25 and is designed for subplate mounting. The unit offers a set pressure rating of 200 bar with a maximum operating pressure of 350 bar. The maximum backpressure is rated at 160 bar, and it can handle a flow up to 500 liters per minute. Fluid cleanliness is maintained at ISO 4406 (c) 20/18/15, and the acceptable hydraulic fluid temperature ranges from minus 20 to 80 degrees Celsius when using NBR seals. Pressure adjustment is managed with a rotary knob, and the valve allows for internal supply and return of pilot oil.

Technical Specifications

Directional Valve Function
Normally Open

Electrical Connection
EN 175301-803 (K4)

Fluid Cleanliness
ISO 4406 (c) 20/18/15

Hydraulic Fluid Temp
−20 to +80 °C (NBR)

Mass
4.95 kg

Max Backpressure (t,y 6ew)
160 bar

Max Flow (subplate)
500 l/min

Max Operating Pressure (p,x)
350 bar

Mounting
Subplate

Nominal Size
NG25

Pilot Oil
Internal Supply/Internal Return

Pressure Adjustment
Rotary Knob

Set Pressure Rating
200 bar

Solenoid Voltage
110 VAC

Viscosity Range
10 to 800 mm2/s

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