RE 29121, edition: 2014-01, Bosch Rexroth AG
4/4 directional control valves, direct operated,
with electrical position feedback and integrated
electronics (OBE)
Features
▶ Reliable - proven and robust design
▶ Safe - fail-safe position of the control spool in switched-
off condition
▶ Energy-efficient - no pilot oil demand
▶ High quality - control spool and sleeve in servo quality
▶ Flexible - suitable for position, velocity and
pressurecontrol
▶ Precise - high response sensitivity and little hysteresis
Contents
Features 1
Ordering code 2, 3
Symbols 3
Function, section 4
Technical data 5, 6
Block diagram/controller function block 7
Electrical connections, assignment 7
Characteristic curves 8 ... 10
Dimensions 11
Accessories, additional information 12
▶ Size 6
▶ Component series 3X
▶ Maximum operating pressure 350bar
▶ Rated flow 4...40 l/min (
∆p = 70 bar)
RE 29121
Edition: 2014-01
Type 4WRPEH
Inhalt
Features 1
Contents 1
Ordering code 2
Ordering code 3
Symbols 3
Function, section 4
Technical data
(For applications outside these parameters, please consult
us!) 5
Technical data
(For applications outside these parameters, please consult
us!) 6
Block diagram/controller function block 7
Electrical connections and assignment 7
Characteristic curves
(measured with HLP46, ϑ
oil
= 40 ±5 °C) 8
Characteristic curves
(measured with HLP46, ϑ
oil
= 40 ±5 °C) 9
Characteristic curves
(measured with HLP46, ϑ
oil
= 40 ±5 °C) 10
Dimensions (dimensions in mm) 11
Dimensions 12
Accessories (not included in the scope of delivery) 12
Project planning / maintenance instructions / additional
information 12