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YOKOGAWA PNEUMATIC PRESSURE CONTROLLER MC43
- PNEUMATIC PRESSURE CONTROLLER
- MC43
- 0-4 kg/cm2
In stock
ℹ️ Additional Information
| Condition |
USED/EXCELLENT CONDITION |
|---|---|
| Manufacturer |
YOKOGAWA |
| Product Code |
100.104.00217 |
📦 Guarantee Terms
🗂️ Product Files
🖹 Description
MC43-A1N-N*A/GAS-FM/P42
Supply: 1,3 – 1,5 kg/cm2
Input: -760mmHg – 0 – 4 kg/cm2
Output: Zero – Supply
The pneumatic pressure controller model MC43 by Yokogawa Electric Corporation is a classic industrial control device designed for precise pressure regulation in pneumatic systems. It is widely used in process industries where reliable, electricity-free control is required.
What It Is
The Yokogawa MC43 is a pneumatic pressure controller that measures process pressure, compares it to a predefined setpoint, and generates a pneumatic output signal (typically 3–15 psi) to regulate the system. It operates entirely using air signals, without the need for electrical power.
What It Does
This device performs three key control functions:
- Measures pressure continuously
- Compares it with a desired setpoint
- Outputs a pneumatic signal to adjust the process
It acts as the “brain” of a pneumatic control loop, making real-time decisions to maintain stable pressure.
Design and Components
The MC43 features a robust, panel-mounted design:
- Front gauge (0–4 kg/cm²): Displays actual process pressure
- Setpoint mechanism: Allows adjustment of target pressure
- Internal mechanism: Pneumatic PID-type control system
- Enclosed housing: Suitable for installation in control panels or control rooms
How It Works
The operation is based on pneumatic control principles:
- Pressure from the process is sensed by the controller
- It is compared with the setpoint
- The controller generates a pneumatic output signal
- This signal is sent to:
- A valve positioner
- A control valve or actuator
- The system adjusts pressure accordingly
Typical Control Loop
Pressure line → Controller → Pneumatic signal → Positioner → Control valve → Pressure regulation
Typical Applications
The Yokogawa MC43 is commonly used in:
- Legacy industrial plants
- Hazardous environments (ATEX zones)
- Pneumatic control systems
- Backup or fail-safe control loops
Key Advantages
- No electrical power required
- Safe operation in explosive environments
- Reliable and stable control
- Suitable for harsh industrial conditions
Comparison with Similar Controllers
| Feature | Foxboro Controller | Yokogawa MC43 |
| Function | Pressure control | Pressure control |
| Technology | Pneumatic | Pneumatic |
| Range | Varies | 0–4 kg/cm² |
Both devices perform the same role, with similar pneumatic control principles.
In Simple Terms
Think of the MC43 as a mechanical air-based controller that keeps system pressure stable automatically.
Role in a Control System
Process → Controller → Pneumatic signal → Positioner → Control valve
Big Picture
The Yokogawa MC43 belongs to the control layer of industrial automation systems, where decisions are made based on measured values.
Final Insight
In a complete pneumatic control system:
- Transmitters → measure
- Controllers (this device) → decide
- Positioners → refine control
- Valves → execute action
This makes the MC43 a critical component in maintaining stable and safe industrial operations.
