Proportional Directional Valve 4WRKE16E1-220L-3X/6EG24EK31/F1D3M - Bosch Rexroth R901495526

A cylinder has to hold position while moving up to 220 l/min. Inside this size 16 valve a pilot-operated main spool runs against an inductive position transducer, so the relation between command signal and spool travel holds up to 350 bar operating pressure.

Advantages

• 220 l/min nominal flow, up to 460 l/min peak flow
• Operating pressure up to 350 bar on all four ports
• Spool symbol E1 with a linear characteristic across three switching positions
• Current command 4...20 mA, tolerant of voltage drop on long cable runs
• Internal pilot oil supply, external pilot oil return
• ISO 4401-07-07-0-05 interface, 10.98 kg

Applications

Presses, injection moulding machines and test rigs where a large cylinder needs a defined speed ramp are the usual home for this size. External pilot oil return suits circuits that carry elevated tank pressure. HL fluid and NBR seals make the unit ready for standard industrial mineral oil systems.

Manufacturer

Bosch Rexroth lists the valve as material number R901495526. The electronics sit on the valve body and are fed through a 7-pole connector (6 + PE) to EN 175201-804.