Proportional Directional Valve 4WRZE32W8-520-7X/6EG24ETK31/F1D3V - Bosch Rexroth R900955805

Internal pilot oil supply and internal pilot oil return save two bores in the manifold, and that is exactly what this version of the 4WRZE32W8-520-7X is built for. The main stage delivers 520 l/min nominal flow at up to 350 bar, driven by a 4 to 20 mA current signal.

Key benefits

• Pilot oil taken internally and returned internally, neither X nor Y line needed.
• Nominal flow 520 l/min, flow up to 1600 l/min.
• Operating pressure up to 350 bar, size 32 to ISO 4401-10-09-0-05.
• Command value 4 to 20 mA at the on-board electronics, 24 VDC supply.
• Pressure reducing valve in the pilot stage keeps pilot pressure from the P channel constant.
• FKM seals for HL fluid, 7-pole connector (6 + PE) to EN 175201-804.

Applications

This version suits compact manifolds where every extra bore costs installation space. It requires a system pressure that stays permanently above the minimum pilot pressure, because the pilot stage draws its oil from the P channel. Typical applications are presses and test rigs with steady supply pressure. The valve weighs 43.6 kg.

Manufacturer

Bosch Rexroth, material number R900955805. Characteristic curves, performance limits and installation dimensions are given in data sheet RE 29115, with a series overview in catalogue RE 07600-B.