Proportional Directional Valve 4WRKE16E220L-3X/6EG24K31/A1D3M - Bosch Rexroth R901536524

When a dedicated pilot pump feeds several valve blocks, pilot pressure stays constant across the plant. The 4WRKE16E220L-3X/6EG24K31/A1D3M is arranged for that with external pilot supply and external pilot drain and passes 220 l/min nominal flow at up to 350 bar.

Benefits

• External pilot supply and drain, constant pilot pressure from a central source
• 220 l/min nominal flow, up to 460 l/min maximum flow in size 16
• Internal spool position feedback, the on-board electronics close the loop without an external amplifier
• ±10 V command value at 24 VDC through a 7-pole (6 + PE) plug to EN 175201-804
• 350 bar, 10.98 kg, NBR seals, spool symbol E

Applications

The valve goes into press lines and test installations whose pilot stage runs on a separate circuit with filtration and cooling. Clean pilot oil noticeably extends the service life of the pilot stage. Mechanically the valve matches the versions with internal pilot routing.

Manufacturer

Bosch Rexroth, material number R901536524, type code 4WRKE16E220L-3X/6EG24K31/A1D3M. The suffix K31 separates this valve from the otherwise identical EK31, TK31 and ETK31 versions.