4wraeb6e/W/Ea/Wa 12/25-1X/G24n9 Da/Dk25/Dk26/K4 Hydraulic Directional Control Valve

• Media: Oil
• Temperature: Ordinary Temperature
• Actuator: Pneumatic
• Model NO.: 4WRA E B 6 E /W/EA/WA 12/25-1X/G24N9
• Connection Form: Clamp
• Type: Distribution of Direct Acting
• Material: Cast Iron
• Pressure: Ordinary Temperature
• Valve Structure: Pilot Piston Structure
• Power Supply: AC Solenoid Valve
• Usage: Safety, Emptying, Drain, Temperature Control, Flow Control
• Standard: GB
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Color: Blue
• Warranty: 12
• Lead Time: 5
• Transport Package: Carton
• Specification: 20*15*10
• Trademark: Rexroth
• Origin: Ger
• HS Code: 8413606090
• Production Capacity: 2000/Weeks

Product Description

Rexroth 4WRAEB6E/W/EA/WA 12/25-1X/G24N9 DA/DK25/DK26/K4 hydraulic directional control valve 
 

Product Description

 Direct operated proportional directional valve, without electrical position feedback, with integrated electronics (OBE) Control of the direction and magnitude of a flow Operation by means of proportional solenoids with central thread and detachable coil For subplate mounting: Porting pattern according to ISO 4401 Spring-centered control spool

Product Parameters

The 4/2 and 4/3 proportional directional valves are designed as direct operated devices in plate design. Operation by means of proportional solenoids with central thread and detachable coil. The solenoids are controlled via integrated electronics.

Set-up:

The valve basically consists of:

Housing (1) with connection surface Control spool (2) with compression springs (3 and 4) Solenoids (5 and 6) with central thread Integrated electronics (7)

Function:

With de-energized solenoids (5 and 6), central position of the control spool (2) due to compression springs (3 and 4) Direct actuation of the control spool (2) by energization of one proportional solenoid, e. g. energization of solenoid "b" (6) Control spool (2) is moved to the left in proportion to the electrical input signal Connection from P to A and B to T via orifice-type cross-sections with progressive flow characteristics Switching off of the solenoid (6) Control spool (2) is returned to the central position by the compression spring (3)

Valve with two spool positions (type 4WRA...A...):

The function of this valve version basically corresponds to the valve with three spool positions. This 2 spool position valve is, however, only equipped with solenoid "a". Instead of the 2nd proportional solenoid, there is a plug screw (8.1) with NG 6 or a cover (8.2) with NG10.

 

general

Type		4WRAE
Size		6	10
Installation position		any, preferably horizontal
Ambient temperature range	°C	-20 … +50
Storage temperature range	°C	-20 … +80
Weight	kg	2.2	6.8

hydraulic

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	42	75
	with double flow	l/min	80	140
Nominal flow		l/min	7 15 26	30 60
Hydraulic fluid 1)			Mineral oil (HL, HLP) to DIN 51524
Hydraulic fluid temperature range		°C	-20 … +80
	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) 2)			Class 20/18/15 according to ISO 4406 (c)
Hysteresis		%	≤ 5
Range of inversion		%	≤ 1
Response sensitivity		%	≤ 0.5

1)	Additional hydraulic fluids upon request
2)	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,

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.

electrical

Size			6	10
Voltage type			Direct voltage
Maximum solenoid current		A	2.5
Maximum current consumption	of the amplifier	A	1.8
	of the amplifier (impulse current)	A	3
Solenoid coil resistance	Cold value at 20 °C	Ω	2
	Maximum hot value	Ω	3
Actuated time		%	100
Maximum coil temperature 1)		°C	+ 150
Power supply		VDC	24
Supply voltage range		V	19 … 35
Command value input	"A1"	V	± 10
Command value input range	"F1"	mA	4 … 20

1)	Due to the surface temperatures occurring at the solenoid coils, the European standards ISO 13732-1 and EN 982 need to be adhered to.

READ LESS

 

 

 

 

 

 

 

 

Quantity(pieces)	1 - 5	>5
Lead time (days)	10	To be negotiated

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