Product Overview
The Dungs MB-ZRDLE 410 is a “MultiBloc” system designed specifically for two-stage operation. It consolidates a high-capacity dirt trap, a precision servo-pressure regulator, and two automatic shut-off valves into a modular monoblock housing. This model is certified under EN 161 Class A, Group 2 and is engineered for use with Natural Gas, LPG, and non-corrosive gas families, ensuring stable gas supply and maximum safety for medium-to-large capacity heating equipment.
Key Features
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Two-Stage (ZR) Modulation: Features a specialized second solenoid valve that enables the burner to cycle between high and low fire settings, allowing for precise load matching and optimized combustion.
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Slow-Opening Hydraulic Brake (LE): Equipped with an adjustable hydraulic “slow-opening” characteristic, facilitating a soft-start ignition that prevents pressure surges and enhances operational safety.
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Integrated Servo-Pressure Regulator: The high-precision regulator ensures a constant outlet pressure regardless of inlet pressure fluctuations, maintaining combustion stability across the entire output range.
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Internal High-Efficiency Strainer: Includes a built-in 0.8 mm mesh dirt trap that protects downstream components from mechanical damage, significantly extending the service life of the system.
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Adjustable Main Flow & Step Stroke: Allows for manual fine-tuning of both the maximum gas flow and the initial ignition gas volume (step stroke) to meet specific burner requirements.
Core Advantages
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Space-Efficient Design: The “all-in-one” monoblock construction eliminates the need for multiple individual components and extensive piping, reducing the overall footprint of the gas train.
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Enhanced Energy Savings: The two-stage capability reduces unnecessary on/off cycling of the burner, leading to lower fuel consumption and reduced mechanical wear on the heating system.
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Modular Expandability: Designed with standardized mounting points for the easy addition of monitoring accessories, such as gas pressure switches (GW) and valve proving systems (VPS).
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Globally Certified Safety: Fully compliant with international standards (CE, UL, and CSA), ensuring that the unit meets the highest safety and reliability requirements for mission-critical applications.
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Streamlined Maintenance: The integrated design simplifies the inspection process and allows for the internal strainer to be cleaned or replaced with minimal downtime and labor.
