All products presented on this website are subjected to extensive checks from our team of engineers and mechanics. Althought,we can not offer a full guarantee for any of our products, as they are used parts from third parties. The limited liability guarantee that comes with these products is extensively analysed here. Please contact our Support Lineif you have any questions about our products guarantee.
ℹ️ Additional Information
| Condition |
USED/EXCELLENT CONDITION |
|---|---|
| Manufacturer |
REXROTH |
| Product Code |
100.999.00056 |
📦 Guarantee Terms
🗂️ Product Files
🖹 Description
Electro-pneumatic pressure control valves convert an electrical signal (current, voltage, resistance) proportionally into pneumatic pressure. They are used where electrical control is required to act directly on a change of pressure or force.
Type: Poppet valve
Operating pressure:
min: 6 bar
max: 8 bar
Output pressure :0 – 6 bar
Supply voltage DC 24 V ± 20 %
Admissible ripple 5%
Current consumption max. 0.3 A
Protection with plug IP 65 according to DIN VDE 0470
Nominal input value :4 – 20 mA / 0 – 20 mA /0 – 10 VDC
The electro-pneumatic converter model 346 056 5500 by Bosch Rexroth is a critical interface device used in industrial automation and process control systems. Its primary function is to convert electrical control signals into proportional pneumatic pressure, enabling seamless communication between electronic controllers and pneumatic equipment.
What It Is
An electro-pneumatic converter (also known as an I/P converter – current to pressure) translates an electrical signal, typically 4–20 mA, into a corresponding air pressure output, usually in the range of 0–10 bar. This allows electronic systems such as PLCs (Programmable Logic Controllers) to control pneumatic actuators with high precision.
What It Does
The device acts as a bridge between electrical and pneumatic systems:
- Receives an electrical signal from a controller (PLC, DCS, or sensor system)
- Converts it into a proportional pneumatic pressure signal
- Sends that pressure to control a pneumatic actuator or valve
This conversion is essential in systems where accurate modulation of pressure, flow, or position is required.
How It Fits in a System
In a typical industrial control loop, the electro-pneumatic converter plays a central role. For example:
PLC → Electro-pneumatic converter → Pneumatic actuator → Control valve adjusts flow
In systems such as the STEVI 440 control valve, the converter ensures that electrical commands are translated into precise mechanical movement μέσω air pressure.
Design and Components
The unit features a compact and durable industrial design:
- Blue enclosure housing the electronic circuitry
- Electrical connectors on the top for signal input
- Pneumatic ports (typically on the side or bottom) for air supply and output
- Labeling that identifies model and specifications
Typical Applications
Electro-pneumatic converters are widely used in:
- Control valves and modulating systems
- Process control loops (pressure, flow, temperature)
- Industrial automation and manufacturing
- Energy and chemical processing plants
Advantages
Key benefits include:
- High accuracy in signal conversion
- Reliable and stable control performance
- Easy integration with PLC and DCS systems
- Improved efficiency in automated processes
In Simple Terms
Think of this device as a translator between electricity and compressed air. It takes an electrical command and turns it into air pressure that machines can understand and act upon.
Quick System Overview
- Air cylinder: creates motion
- Hand valve: manual control
- Directional valve: directs airflow
- Solenoid valve: electrically controls airflow
- Control valve (STEVI): regulates flow
- Electro-pneumatic converter (this device): converts electrical signals into pneumatic pressure
Overall, the Bosch Rexroth 346 056 5500 electro-pneumatic converter is an essential component for achieving precise and efficient control in modern industrial automation systems.
