4/3 proportional directional valves with integrated digital electronics and field bus interface (IFB-P) 4WREF

Type			4WREF
Size			6	10
Installation position			any, preferably horizontal
Ambient temperature range		°C	-20 … +50
Storage temperature range		°C	-20 … +80
Weight	without sandwich plate	kg	2.4	6.5
Climate			Environmental audit according to EN 60068-2
MTTFd values according to EN ISO 13849		y	150

Size			6	10
Maximum operating pressure		bar	315
Maximum operating pressure	Port P	bar	315
	Port T	bar	210
	Port A	bar	315
	Port B	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
	preferably	°C	+40 … +50
Viscosity range		mm²/s	20 … 380
	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 2)		%	≤ 0.1
Range of inversion 2)		%	≤ 0.05
Response sensitivity 2)		%	≤ 0.05
Zero shift upon change of:	Hydraulic fluid temperature	%/10 K	< 0.15
	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.
2)	Position control – valve control spool

Hydraulic fluid

Classification

Suitable sealing materials

Standards

Mineral oils and related hydrocarbons

HL, HLP

NBR / FKM

DIN 51524

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.

Size			6	10
Voltage type			Direct voltage
Maximum current consumption	of the amplifier	A	2
	of the amplifier (impulse current)	A	3
Actuated time 1)		%	100
Maximum coil temperature 2)		°C	150
Protection class according to DIN EN 60529			IP65 with plug-in connectors mounted and locked
EMC (electro-magnetic compatibility)			Interference resistance prEN 50082-2: 1994; interference emission EN 50081-1: 1992
Converter resolution (command/actual value signals)		Bit	10
Power supply		V	24
Supply voltage range		V	19,4 … 35
Earthing (GND)		V	0
Command value input	"A1"	V	± 10
Command value input range	"F1"	mA	4 … 20
Actual value output	"A1"	V	± 10
Actual value output range	"F1"	mA	4 … 20

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 EN ISO 4413 need to be adhered to!

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