Rexroth A11VO/145LRDS Valve

The Rexroth A11VO/145LRDS valve is a linear, normally-closed pilot operated check valve with the built-in solenoid and electronics for self actuation. The valve provides for directional control of liquids, gases, air and vapors. The A11VO/145LRDS valve is available in several materials of construction.

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Features

Type code

Dimensions

Technical data

Rexroth A11VO/145LRDS Valve Service Manual

Features

Synchronous operation of up to 4 consumers with a wide flow range connected in parallel
Protection against overrevving of hydraulic motors in control mode
Constant division ratio in the case of summating flow division
Optional preselectable or readjustable division accuracy by proportional orifice
Optional with free wheel mode
Double acting (dividing and summing) flow divider
Suitable for open and closed circuits
Integrated pressure relief and anti-cavitation valves for protecting hoses and preventing cavitation
Series 1x

Type code

Dimensions

Technical data

General



Weight (approx.)	Without free-wheel	m	kg	14	18.2	18.2	29.9	37.4	37.4
Weight (approx.)	With free-wheel	m	kg	14.1	18.3	18.3	30	37.5	37.5
Installation position				Horizontal preferred
Operating temperature		ϑ	°C	-25 … +80
Standard painting				Single coat RAL 5010

Hydraulic


Nominal pressure	Port P, A, B, C, D	p	bar	500
Maximum operating pressure	Port S	p	bar	40
Maximum flow	Port P	qV	l/min	160	440
Hydraulic fluid temperature		ϑ	°C	-20 … +80
Viscosity range		v	mm²/s	10 … 380

Electric

Voltage type				DC voltage

	Supply voltage		V
	Maximum control current		A	1.76	1.2
	Coil resistance	Cold value at 20 °C	Ω	2.3	4.8
		Maximum warm value	Ω	3.8	7.9
	Duty cycle		%	100
	Maximum coil temperature		°C	150 2)

	Supply voltage		V
	Voltage tolerance			see diagram
	Power consumption (solenoid)		W	22
	Duty cycle			see diagram
	Switching time according to ISO 6403 (solenoid horizontal)	ON	ms	≤ 80
		OFF	ms	≤ 50
	Maximum switching frequency			15000
	Maximum coil temperature		°C	150 2)
Protection class according to VDE 0470-1 (DIN EN 60529)		Connector version	K40	IP69K with mating connector mounted and locked1)
			C4	IP66 with mating connector mounted and locked1)
				IP69K with Rexroth mating connector (material number R901022127)1)
Electronic controls				Mobile amplifier VT-MSPA1-100 Plug amplifier VT-SSPA1-1.., see data sheet 30116

1) Plug-in connectors are not included in the scope of delivery and must be ordered separately
2) Surface temperature of coil housing. Due to the arising surface temperature of the solenoid coil, European standards EN 563 and EN 982 must be observed.