Servo Directional Valve 4WS2EM10-5X/5B11XHT315K31EV - Bosch Rexroth R901406026

A small servo axis loses accuracy the moment its valve stops resolving in the low flow range. This directly actuated servo valve in size 10 is rated at 5 l/min nominal flow, passes 9 l/min at most, and works up to 350 bar operating pressure.

Benefits

• 5 l/min nominal flow keeps resolution at slow feed rates, with 9 l/min as the maximum
• External pilot oil supply with internal pilot oil return, so pilot pressure ignores load steps in the P line
• Internal spool position feedback, driven by analog command value 30 mA/85 from external electronics on 24 VDC
• 350 bar operating pressure with FKM seals on HL hydraulic fluid
• ISO 4401-05-05-0-05 connection diagram, subplate mounting, 3 switching positions, 3.86 kg

Application

Test benches, materials testing machines, position axes with small cylinders under closed loop position or force control. External pilot supply pays off where system pressure dips in the cycle while valve dynamics have to stay constant. Mounting is on a subplate to ISO 4401-05-05-0-05.

Manufacturer

Made by Bosch Rexroth. Material number R901406026 stands for the 4WS2EM10-5X/5B11XHT315K31EV version out of product family 4WS2EM10..XH.