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5/2-way valve, Series 581, size 4

▶ Qn = 6000 l/min ▶ plate connection ▶ Pilot valve width: 30 mm ▶ compressed air connection output: Base plate ISO 5599-1 ▶ Basic valve for CNOMO pilot valve; with differential piston ▶ suitable for ATEX

Standards	ISO 5599-1
ATEX	2G Ex mb II T4 2D Ex tD A21 T130°C
Version	Spool valve
Pilot	external, internal
Sealing principle	soft sealing
Blocking principle	Single base plate principle
Working pressure min./max.	-0.95 bar / 16 bar
Ambient temperature min./max.	-20°C / +70°C
Medium temperature min./max.	-20°C / +70°C
Medium	Compressed air
Max. particle size	50 µm
Oil content of compressed air	0 mg/m³ - 5 mg/m³
version pneumatic port	according to ISO 5599

Protection class with electrical connector/plug	IP 65
Duty cycle	100 %
Mounting screw	with hexagon socket
mounting screw tightening torque	10 Nm

Materials:

Housing	Aluminum
Seals	Acrylonitrile Butadiene Rubber

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Technical Remarks
■	The pressure dew point must be at least 15 °C under ambient and medium temperature and may not exceed 3 °C.
■	The oil content of air pressure must remain constant during the life cycle.
■	Use only the approved oils from Bosch Rexroth, see chapter „Technical information“.
■	* Note: ATEX version can be produced by combining the basic valve without coil with a series DO30 CNOMO pilot valve and an ATEX coil. ATEX ID: see ATEX coils catalog page.

Flow conductance	Qn	Control pressure min./max.	Weight	Note	Part No.
C
[l/(s*bar)]	[l/min]	[bar]	[kg]
24.5	6000	1.5 / 16	1.28	1); 2)	5814680000
24.5	6000	1.5 / 16	1.28	1); 2); 3)	5814681000

1) The pilot can be set by turning the seal under the valve cover by 180°.

2) For internal pilot the working pressure min/max is the same as the control pressure min/max.

3) with throttle
Basic valve without pilot valve
The minimum pilot pressure is dependent on the pressure in port 1.
Differential piston, signal 14 has priority
Nominal flow Qn at 6 bar and Δp = 1 bar

Dimensions