Dungs Gas Solenoid Valve MV/4, MVD, MVD/5, MVDLE/5

Product Details

Energy Combustion, Ahmedabad suppliers of Dungs make Gas Solenoid Valve and Multibloc DUNGS is a leading global manufacturer of gas safety and combustion controls. Their gas solenoid valves are critical components in industrial and commercial burner systems, serving as automatic shut-off valves to ensure the safe release or termination of gas flow. Core Product Series DUNGS categorizes its valves based on their speed of operation and internal configuration. 1. Single Solenoid Valves (MV, MVD, MVDLE) These are single-stage, normally closed automatic shut-off valves. MV: Standard fast-opening, fast-closing valve (<1s). MVD: Fast-opening with a manual main volume adjustment (the "D" stands for "Drossel," or throttle). This allows you to limit the maximum flow rate. MVDLE: Slow-opening (approx. 20 s) with an adjustable fast-stroke section (the "L" for slow and "E" for adjustable). This is ideal for soft-start ignition. 2. Double Solenoid Valves (DMV) The DMV series integrates two safety valves into a single, compact housing. This design replaces two individual valves in a "gas train," saving space and reducing leak points. DMV-D: Both valves are fast-opening. DMV-DLE: Valve 1 is fast-opening; Valve 2 is slow-opening with an adjustable fast stroke. Approvals: Commonly used in systems requiring "Proof of Closure" (POC) to verify the valves are physically closed before the burner starts. 3. GasMultiBloc (MB) The MultiBloc is an all-in-one assembly that includes a filter, a pressure regulator, and two solenoid valves. It is the industry standard for modern boiler and burner systems. MB-DLE: Single-stage regulator and slow-opening valves. MB-ZRDLE: Two-stage (High/Low) operation for burners that require two different firing rates. Technical Specifications While specs vary by model, the typical range for DUNGS industrial valves includes: Max Operating Pressure: Up to 500 mbar (7 PSI) for standard models; high-pressure versions available up to 5 bar. Voltage Options: 230V AC (Standard), 110-120V AC, and 24V DC. Ambient Temperature: -15 °C to +60 °C. Protection Rating: Standard IP54 (IP65 available for harsh environments). Media: Suitable for Natural Gas, Propane, Butane, and Air. Special "SGN" versions are available for aggressive Biogas. Maintenance & Troubleshooting Dirty Sieve: All valves have an internal strainer. If you notice a pressure drop, the sieve may be clogged with pipe scale or debris. Coil Failure: If the valve fails to open, check the solenoid coil for continuity. DUNGS coils are replaceable without breaking the gas seal. Leak Testing: Annual leakage tests are mandatory. This is often done using a VPS 504 (Valve Proving System), which mounts directly to the side of the valve body to check for internal seat leakage automatically.