Rexroth Pneumatic Solenoid Valve 230V 0820 051 551

Description

This is a high-quality 5/3-way pneumatic directional control valve from Bosch Rexroth, part number 0820 051 551. It belongs to the reliable Series 581 (Size 1) and is designed for base plate mounting according to the ISO 5599-1 standard. The valve is a double solenoid, spring-centered version with a mid-position closed function, allowing for precise actuator control and locking. It operates with 230V AC coils, making it suitable for a wide range of industrial control systems.

Specifications

• Manufacturer: Rexroth
• Valve Part Number: 0820 051 551
• Coil Part Number: 1 827 414 812
• Valve Type: 5/3-Way Directional Control Valve
• Series: 581, Size 1
• Actuation: Double Solenoid, Spring Centered
• Function: Mid-position closed (All ports blocked)
• Operating Voltage: 230V AC, 50/60Hz
• Power Consumption: 1.6/1.4 VA
• Maximum Operating Pressure: 10 bar
• Mounting: ISO 5599-1 Base Plate Interface

Label Info

• Brand: Rexroth
• Valve Model: 0820 051 551
• Coil Model: 1 827 414 812
• Voltage: 230V 50/60Hz
• Pressure: max 10bar

Application

This valve is ideally suited for industrial automation applications requiring precise control of double-acting pneumatic cylinders, such as in machine building, material handling, and assembly line equipment where intermediate positioning or secure holding is necessary.

Country of Origin

Made in France.

CO2 Impact

By purchasing this pre-owned component, you are contributing to a circular economy and helping to avoid approximately 12.0 kg of CO2 emissions. This is equivalent to the emissions from driving a standard passenger car for 60 kilometers.

Availability

This item is in stock and ready for immediate dispatch. All our products are tested and guaranteed to be fully functional. Order now from PLC2Day for expert support and fast delivery.

FAQ

Question?
What is the function of a 'mid-position closed' 5/3-way valve?

Answer: In a 'mid-position closed' (or 'all ports blocked') 5/3-way valve, when both solenoids are de-energized, the spool centers and blocks all ports (pressure, exhaust, and both cylinder ports). This locks the pneumatic actuator, such as a cylinder, in its current position, which is useful for safety stops or precise intermediate positioning.

Answer: Yes, the solenoid coils on Rexroth Series 581 valves are typically modular. You can replace the existing 230V AC coils with compatible 24V DC coils from the same series. However, you must ensure the replacement coil has the correct form factor and that your control system can provide the appropriate DC voltage and current.

Answer: The ISO 5599-1 standard defines the dimensions and port locations for the mounting interface of pneumatic directional control valves. This standardization ensures that this Rexroth valve is interchangeable with any other brand's valve that also complies with the ISO 5599-1 standard for the same size (Size 1 in this case). It simplifies installation, maintenance, and replacement on a standard manifold base.

Friday, March 13, 2026

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