Kromschröder DG50B-3 – 2.5-50 mbar Gas Pressure Switch
A Kromschröder DG50B-3 is a gas pressure switch with an adjusting range of 2.5-50 mbar, a max pressure of 600 mbar, and an IP54 rating.
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Kromschröder DG50B-3 – 2.5-50 mbar Gas Pressure Switch
The Kromschröder DG50B-3 is a highly reliable gas pressure switch designed to monitor positive pressure in industrial combustion systems. With a maximum pressure rating of 600 mbar (0.6 bar), this device is used to trigger a switch when the pressure in a gas or air line reaches a set point. Its adjustable range of 2.5 to 50 mbar allows for precise calibration, ensuring the safe and efficient operation of burners and other gas-fired equipment.
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Key Features
- Positive Pressure Monitoring: Designed to monitor pressure in gas and air systems and switch at a set point.
- Adjustable Range: The switch can be precisely set to trigger at a pressure between 2.5 and 50 mbar.
- High Maximum Pressure: The device can safely handle a maximum pressure of 600 mbar.
- Rising Pressure Switch: The “B” in the model name indicates that it switches when pressure rises past the set point.
- High Environmental Ratings: With an IP54 rating, it is protected against dust and splashing water.
How it Works
A gas pressure switch works like a safety valve. It uses a diaphragm that is pushed on one side by the gas pressure. On the other side, a spring provides a counteracting force. You can adjust the tension of this spring with a handwheel to set the desired switching pressure. When the gas pressure exceeds this set point, it overcomes the spring force, causing the diaphragm to move and trigger a microswitch. This switch can then be used to turn a burner on or off, or to trigger an alarm in the event of a pressure change.
Technical Specifications
- Manufacturer: Kromschröder (a brand now part of Honeywell)
- Part Number: 84447200
- Product Type: Gas Pressure Switch
- Model: DG50B-3
- Adjusting Range: 2.5-50 mbar
- Max Pressure: 600 mbar
- Voltage: Up to 250 VAC
- Current: 5(1) A
- Protection Rating: IP54
Applications
The Kromschröder DG50B-3 is an essential component in industrial combustion systems, including:
- Burner and Furnace Control
- Boiler and Oven Systems
- Gas-Fired Heating Systems
- Industrial Pressure Monitoring
Why Choose ROMA Company for industrial supplies?
ROMA Industrial is your trusted partner for a full range of industrial supplies across categories like Motion Control & Mechatronics, Electrical & Automation, and Fluid Power & Control. We are committed to providing top-tier products and service to keep your operations running smoothly. We partner with world-class shipping providers like FedEx, DHL, and UPS to ensure fast and reliable delivery worldwide.
| Manufacturer | |
|---|---|
| Range |
2.5-50 mbar |
| Accuracy | |
| Output Signal |
Electrical (Switching) |
| Process Type The used fluid with the product | , |
| Primary Function |


















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