Product Overview
The Dungs MB-ZRDLE 407 is a compact “MultiBloc” system that combines a dirt trap (filter), a pressure regulator, and two solenoid valves (V1 and V2) into one modular housing. This model is specifically designed for two-stage operation, making it the industry standard for burners requiring high and low fire control. It is suitable for gases of families 1, 2, 3 (Natural gas, LPG, and town gas) and is fully compliant with EN 161 Class A, Group 2 safety standards.
Key Features
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Integrated Multi-Functional Design: Combines a high-capacity strainer, a servo-pressure regulator, and two automatic shut-off valves in a space-saving monoblock.
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Two-Stage Operation (Z): Equipped with a specialized solenoid valve (V2) that supports two-stage output, allowing for seamless transitions between partial and full-load operations.
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Adjustable Slow Opening (LE): Features a hydraulic brake that enables a “soft-start” ignition through adjustable slow-opening timing, reducing mechanical stress and improving ignition safety.
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Precision Pressure Regulation: The integrated regulator maintains a constant outlet pressure regardless of inlet pressure fluctuations, ensuring high combustion stability.
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Main Flow & Step Stroke Adjustment: Allows for fine-tuning of the main gas flow and the initial gas volume (step stroke) to match the specific firing requirements of the burner.
Core Advantages
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Optimized Installation Space: The highly integrated “All-in-One” design significantly reduces the physical footprint and the number of pipe connections required compared to using individual components.
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Exceptional Safety Standards: Fully certified to international standards, including CE, UL, and CSA, providing peace of mind for global industrial and residential installations.
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Modular Versatility: The MultiBloc is designed for easy expansion, allowing for the direct mounting of pressure switches (GW), valve proving systems (VPS), and other monitoring accessories.
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High Reliability & Low Maintenance: Built with high-durability materials and an internal strainer that protects downstream components, the MB-ZRDLE 407 is engineered for long-term service with minimal intervention.
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Streamlined Diagnostics: The unit supports various electrical connection options and is compatible with modern burner control systems for rapid fault detection and performance monitoring.
