Pumpensicherheitsblock DBAW40BH2N1X/180S6EG24N9K4R12E - Bosch Rexroth R901546330

The block sits at the pump outlet and carries out two tasks at once. The pilot-operated pressure valve in poppet seat design limits the pressure to the value set between 3.7 and 180 bar, while the built-on directional spool valve unloads the pump electrically at 24 VDC.

Benefits

• Pressure limitation and electrical unloading in one block, so separate valves and their piping are not needed
• Adjustment range of 3.7 to 180 bar at a maximum operating pressure of 350 bar
• Flow of up to 500 l/min in size 40
• Pressure valve in poppet seat design, so the seat closes tightly
• Internal hexagon with a protective cap holds the set pressure in place
• High-pressure flange connection, NBR seals for HL hydraulic fluid, weight of 14 kg

Applications

The block protects pumps in the power units of presses, injection moulding machines and test rigs. Electrical unloading lets the motor start without pressure and idle without load. The two ports are bolted through the high-pressure flange.

Manufacturer

Bosch Rexroth lists this pump safety block of product family DBA(W) under material number R901546330. The ordering code DBAW40BH2N1X/180S6EG24N9K4R12E states the size, the pressure rating and the valve voltage.