Rexroth 4WRA 4WRE Proportional Directional valves

Overview

Path 6

path 10

Installation location

Arbitrary, it is recommended to install at a priority level

Storage temperature

°C

-20 to +80

Use

4WRE

°C

-20 to +70

Ambient temperature

4WREE

°C

-20 to +50

Weight

4WRE

 kg

2.2

6.3

4WREE

 kg

2.4

6.5

Hydraulic parameters (measured at p = 100 bar, mineral oil HLP46, 40 °C ± 5 °C)

Work pressure

Oil port A, B, P

bar

To 315

Oil port T

bar

To 210

Rated flow rate qV nom at p =10 bar

L/min

8

25

16

50

32

75

Maximum allowable flow

L/min

80

180

Hydraulic oil

Mineral oil (HL, HLP) according to DIN 51 524;

Please consult us for other oils!

Oil temperature range

°C

-20 to +80 (preferably +40 to +50)

Viscosity range

mm²/s

20 to 380 (preferred 30 to 46)

Oil cleanliness

Recommended for the highest pollution level of oil
Minimum filtration ratio according to ISO 4406 (C) 20/18/15 1)

Hysteresis

%

≤ 0.1

Reverse error

%

≤ 0.05

Repeatability

%

≤ 0.05

The zero displacement will follow the pressure oil

Temperature and operating temperature change and change

%/100 K

0.15

%/100 bar

0.1