Pumpensicherheitsblock DBAWR40BH2N1X/100S6EG24N9K4R12 - Bosch Rexroth R901221734

The key BH2 marks the high-pressure flange with two ports, the figure 100 marks the adjustment range of 3.7 to 100 bar. The block limits pump pressure in a pilot-operated poppet seat and unloads the system through a built-on directional spool valve at 24 VDC. Up to 450 l/min are discharged in the process.

Benefits

• Adjustment range 3.7 to 100 bar, suited to circuits working at low pressure
• Flow up to 450 l/min at a maximum operating pressure of 350 bar
• Solenoid unloading through the built-on directional spool valve, 2 switching positions at 24 VDC
• High-pressure flange with 2 ports, size 40, mass 14.39 kg
• Internal hexagon with protective cap keeps the pressure setting from being altered
• Connector, 3-pole (2 + PE) according to EN 175301-803, NBR seals for HL hydraulic fluid

Application

The block bolts straight onto the pump outlet of power units that work up to around 100 bar. During start-up and idle periods the solenoid runs the pump unloaded, which cuts drive power and oil heating. Typical hosts are power units for clamping fixtures and feed drives moving several hundred litres per minute.

Manufacturer

Bosch Rexroth lists this pump safety block of the DBA(W) product family under material number R901221734.