4WREQ

general

Size			6	10
Maximum operating pressure		bar	315
Maximum operating pressure	Port P (sensor 100 bar)	bar	100
	Port P (sensor 160 bar)	bar	160
	Port P (sensor 250 bar)	bar	250
	Port P (sensor 400 bar)	bar	315
	Port T (sensor 100 bar)	bar	100
	Port T (sensor 160 bar)	bar	160
	Port T (sensor 250 bar)	bar	210
	Port T (sensor 400 bar)	bar	210
	Port A (sensor 100 bar)	bar	100
	Port A (sensor 160 bar)	bar	160
	Port A (sensor 250 bar)	bar	250
	Port A (sensor 400 bar)	bar	315
	Port B (sensor 100 bar)	bar	100
	Port B (sensor 160 bar)	bar	160
	Port B (sensor 250 bar)	bar	250
	Port B (sensor 400 bar)	bar	315
Maximum flow		l/min	80	180
Nominal flow		l/min	8 16 32	25 50 75
Hydraulic fluid			see table
Hydraulic fluid temperature range		°C	-20 … +70
Hydraulic fluid temperature range	preferably	°C	+40 … +50
Viscosity range		mm²/s	20 … 380
Viscosity range	preferably	mm²/s	30 … 46
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) ¹⁾			Class 20/18/15 according to ISO 4406 (c)
Hysteresis		%	≤ 0.1
Range of inversion		%	≤ 0.05
Response sensitivity		%	≤ 0.05
Zero shift upon change of	Hydraulic fluid temperature	%/10 K	< 0.15
Zero shift upon change of	Operating pressure	%/100 bar	< 0.1

¹⁾	The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.

Hydraulic fluid	Classification	Suitable sealing materials	Standards
Mineral oils and related hydrocarbons	HL, HLP	NBR / FKM	DIN 51524
Flame-resistant – containing water	HFC (Fuchs HYDROTHERM 46M, Petrofer Ultra Safe 620)	NBR	ISO 12922
Important information on hydraulic fluids: For more information and data on the use of other hydraulic fluids please contact us. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). The flash point of the process and operating medium used must be 40 K over the maximum solenoid surface temperature. Flame-resistant – containing water: Maximum pressure differential per control edge 175 bar Pressure pre-loading at the tank port > 20 % of the pressure differential, otherwise increased cavitation Life cycle as compared to operation with mineral oil HL, HLP 50 % to 100 %

Size			6	10
Voltage type			Direct voltage
Maximum current consumption	of the amplifier	A	2
Maximum current consumption	of the amplifier (impulse current)	A	3
Maximum current	Output stage	A	1.7
Maximum current	Signal part	A	0.3
Actuated time ¹⁾		%	100
Maximum coil temperature ²⁾		°C	150
Protection class according to DIN EN 60529			IP65 (If a suitable and a correctly mounted mating connector are used.)
Converter resolution (command/actual value signals)		bits	10
Power supply		V	24
Supply voltage range		V	19,4 … 35
Earthing (GND)		V	0
Enable input range	“A6”	V	9 … 35
Enable input range	“F6”	V	9 … 35
Command value input	UQ “A6”	mA	10
Command value input range	UP “A6”	mA	0 … 10
Command value input range	IQ and IP “F6”	mA	4 … 20
Actual value output	UQ “A6”	V	± 10
Actual value output range	UP “A6”	mA	0 … 10
Actual value output range	IQ and IP “F6”	mA	4 … 10
Control voltage			Level as for pin 1
0 V reference potential			For pins 3, 6, 8 and 11 (connected to pin 2 in valve)
Error output			24 V (19.4 V to 35 V), 200 mA maximum load

¹⁾	Connect the valve to the supply voltage only when this is required for the functional sequence of the machine.
²⁾	Due to the surface temperatures occurring at solenoid coils, the European standards ISO 13732-1 and ISO 4413 need to be adhered to.

Overload protection	Sensor 100 bar	bar	200
	Sensor 160 bar	bar	320
	Sensor 250 bar	bar	500
	Sensor 400 bar	bar	800
Bursting pressure	Sensor 100 bar	bar	400
	Sensor 160 bar	bar	640
	Sensor 250 bar	bar	1000
	Sensor 400 bar	bar	1600
Characteristic curve deviation		%	< 0.2
Hysteresis		%	< 0.1
Repetition accuracy		%	< 0.05
Long-term drift (1 year) under reference conditions		%	< 0.2

Brands	Rexroth