Quick Facts
- For air and flue gas
- High switching accuracy
- Low pressure differentials
- FM approved, UL listed
Kromschröder DL Series
Precision Switches
Reliable monitoring and control of air, flue gas, and other non-aggressive gases in industrial systems.
Selection Guide
DL..A
Adjustable
Pressure switch with hand wheel for adjusting the switching point.
DL..K
Tube Connection
Pressure switch with tube connection for flexible installation.
DL..E
External Adjust
Pressure switch with external adjustment screw for precise setting.
Series Overview
The Kromschröder DL Series air pressure switches are designed for precision monitoring of air, flue gas, and other non-aggressive gases. They are widely used in combustion, ventilation, and air-conditioning systems.
Key Features
- High Precision: Diaphragm pressure switch with micro switch ensures high switching accuracy.
- Versatile Applications: Suitable for positive pressure, negative pressure, and differential pressure monitoring.
- Easy Adjustment: Switching point can be adjusted via a hand wheel (DL..A) or adjusting screw.
- Reliable Operation: Robust design for long-term reliability in industrial environments.
- Approvals: FM approved, UL listed, CE certified, and RoHS compliant.
Models
- DL..A: Features a hand wheel for easy adjustment of the switching point without tools.
- DL..K: Equipped with tube connections for specific installation requirements.
- DL..E: Designed with an external adjustment screw for tamper-resistant settings.
- DL..T: US version with NPT connections and specific approvals for the North American market.
These switches are essential for ensuring the safe operation of burners, fans, and ventilation systems by detecting airflow and pressure changes.
Technical Specifications
| Parameter | Value |
|---|---|
| Adjusting Range | 0.2 to 150 mbar (0.08 to 60 "WC) |
| Max. Inlet Pressure | 600 mbar (8.5 psig) |
| Medium | Air, flue gas, non-aggressive gases |
| Switching Capacity | 24-250 V AC, 5 A (resistive load) |
| Protection Class | IP 54 (NEMA 3) |
| Ambient Temperature | -15 to +80 °C (5 to 176 °F) |
Frequently Asked Questions
What is the primary function of the Kromschroder DL Series?
The Kromschroder DL Series is designed to provide precise and reliable control for industrial combustion systems, ensuring optimal performance, safety, and energy efficiency across various heating applications.
How do I select the right model within the DL Series?
Selecting the correct model depends on your specific application requirements, including operating voltage, required torque or capacity, and control logic (e.g., on-off vs. modulating). Refer to the model overview table above or contact our engineering team for technical assistance.
Are DL Series components suitable for retrofitting existing systems?
Yes, Kromschroder designs the DL Series with standardization in mind, making them excellent choices for both new installations and retrofitting older or legacy combustion systems to meet modern safety and emissions standards.