Pumpensicherheitsblock DBAWR40BF2N1X/100S6EG24N9K4R12V - Bosch Rexroth R901482735

A setting range of 3.7 to 100 bar targets circuits working far below the 350 bar limit of the valve, clamping and conveying equipment for instance. Unloading is handled by a built-on directional spool valve, so the pump circulates without pressure between strokes. As a size 40 unit with flange connection the block passes up to 450 l/min at a mass of 14.2 kg.

Benefits

• Setting range of 3.7 to 100 bar for low-pressure circuits
• Solenoid unloading through a built-on directional spool valve, pump circulates without pressure
• Flow up to 450 l/min in size 40
• Pressure stage in poppet seat design, pilot-operated, internal hexagon with protective cap
• Flange connection instead of subplate mounting, maximum operating pressure 350 bar
• FKM seals for HL hydraulic fluid, 24 VDC, mass 14.2 kg

Application

The block sits straight on the pump outlet of large power units whose loads work at low pressure but high flow. During pauses, solenoid unloading lets the pump circulate without pressure, cutting lost power and oil temperature. FKM seals allow higher temperatures than the standard NBR build.

Manufacturer

Bosch Rexroth lists this pump safety block DBAWR40BF2N1X/100S6EG24N9K4R12V under material number R901482735. The flange connection replaces the subplate, so the mating face has to be machined to suit.