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Brand: DUNGS
DUNGS DMV-D 5125/11 ECO Gas Double Solenoid Valve
Description
Product Overview
The DUNGS DMV-D 5125/11 ECO is a double solenoid valve combining two solenoid valves in a single unit, providing double safety shut-off for gas burners. It is part of the DUNGS DMV-D series of double solenoid valves, widely used in gas firing systems for industrial and commercial burners.
The DMV-D 5125/11 ECO version includes both valves as fast-acting Class A, Group 2 solenoid valves, suitable for automatic burner control where the gas supply must be shut off reliably in two independent stages. The double solenoid valve combines two shut-off valves in one housing without a pressure regulator, simplifying installation and reducing piping requirements. The unit is supplied with a DN 125 flange connection to PN 16.
Key Features
- Double solenoid valve with two Class A fast-acting solenoid valves
- Double safety shut-off for automatic gas burner control
- Adjustable main flow restrictor on valve V1 (D version)
- Suitable for natural gas, LPG and other fuel gases
- Compact combined design reduces piping and installation effort
- Proven DUNGS reliability for burner safety systems
- CE certified gas safety component
Technical Specifications
| Model | DUNGS DMV-D 5125/11 ECO |
|---|---|
| Function | double solenoid valve (two shut-off valves in one housing) |
| Valve class | A, Group 2 (EN 161), both valves |
| Connection | DN 125 flange, PN 16 |
| Regulator | none integrated; adjustable main flow restrictor on V1 |
| Gases | natural gas, LPG, town gas |
| Manufacturer | DUNGS Combustion Controls |
| Max. Operating Pressure | 500 mbar (50 kPa) |
| Closing / Opening Time | Less than 1 s closing; less than 1 s opening |
| Ambient Temperature | -15 to +60 °C (NBR seals); 0 to +60 °C (Viton version) |
| Voltage | 230 V AC (-15% / +10%), 50-60 Hz; preferred alternatives 110 V AC and 24 V DC |
| Power Consumption | Starting approx. 2 × 125 W; holding approx. 2 × 25 W (at 230 V AC, +20 °C) |
| Protection / Duty Cycle | IP 54 / 100% switch-on duration |
| Weight | 31.7 kg |
| Order Number | 253 461 (230 V AC, NBR seals) |
Applications
The DMV-D 5125/11 ECO is used in automatic gas burner systems for industrial furnaces, boilers, process heaters, commercial heating plants and similar firing equipment where dual safety shut-off is required for safe operation.
Ordering and Selection
When ordering the DUNGS double solenoid valve, confirm the valve size, gas type and coil voltage, because each DUNGS double solenoid valve is built for a specific burner duty. The DMV-D 5125/11 ECO is a DN 125 double solenoid valve without an integrated pressure regulator, and the selected DUNGS double solenoid valve must be matched to the burner capacity and gas supply pressure. Our team can help you confirm that the DUNGS DMV-D 5125/11 ECO you select is correct for your burner system, and each DUNGS double solenoid valve supplied by Seven Star LLC is a genuine DUNGS combustion control component.
Maintenance and Support
The DUNGS double solenoid valve should be inspected during burner service, including the valve seats and the inlet sieve. Genuine DUNGS double solenoid valve spares and complete replacement units are available through Seven Star LLC. Contact our team for assistance with the DUNGS double solenoid valve, and we will confirm availability and lead time for your project.
Industry Applications and Custom Support
The DUNGS double solenoid valve is trusted by operations and maintenance teams across boiler houses and process plants in Oman, the GCC and the wider Middle East region. Our customers select the DUNGS double solenoid valve for reliability, genuine quality and dependable supply. Seven Star LLC provides custom support including technical selection, quotation and after-sales assistance, and we regularly supply this gas valve as part of preventive maintenance programs and shutdown packages. Whether you need a single unit or a complete set for a project, our team supports procurement and inspection.
The DMV-D 5125/11 ECO double solenoid valve combines the two solenoid valves and an inlet sieve in one compact housing, and the block controls the gas supply of the burner with the safety shut-off function.
The double solenoid valve provides the double safety shut-off of the gas supply, and the unit is installed between the gas train and the burner for the gas fired boilers and the furnaces.
The DUNGS DMV-D double solenoid valve is used for the gas shut-off of the industrial burners, and a gas pressure switch can be mounted as an accessory.
The DUNGS DMV-D 5125/11 ECO double solenoid valve combines two Class A solenoid shut-off valves in one housing, and the DUNGS DMV-D 5125/11 ECO double solenoid valve is mounted in the gas train of the industrial burner.
The DUNGS DMV-D 5125/11 ECO double solenoid valve is verified for the gas train, and the DMV-D block is selected with the 5125/11 configuration.
DMV Variants and Type Code
The type code tells you exactly what the valve does. DMV is the DUNGS double solenoid valve family: two shut-off valves in one housing, each an automatic shut-off valve to EN 161 Class A, Group 2. The suffix D means an adjustable main flow restrictor on valve V1 for manual limitation of the gas flow. In 5125/11 the 125 is the nominal diameter, so this is a DN 125 flanged valve to PN 16, the largest size of a range that starts at Rp 2 (DN 50) and continues through DN 65, DN 80 and DN 100.
Three versions exist in each size. The plain DMV is fast opening and fast closing without flow adjustment. The DMV-D adds the main flow adjustment and is rated for 60 switching cycles per hour. The DMV-DLE is slow opening with an adjustable opening time and fast stroke on valve V2, and is rated for 20 cycles per hour. A DMV-D and a DMV-DLE of the same size share the same flange dimensions, so check the label before ordering a replacement. The 230 V AC version of the DMV-D 5125/11 eco with NBR seals has order number 253 461.
Compatible System Accessories
The valve body is prepared for direct mounting of DUNGS system accessories, and DUNGS states that the plug connection and all accessories must be ordered separately. Listed accessories are the VPS 504 valve proving system, the compact gas pressure switch GW…A5, the pressure limiters UB and NB…A2, and the K01/1 closed position signal contact, which can be fitted to V1 and V2. A G 3/4 ignition gas flange can be mounted on either side between the two valves. Fitting one accessory may block the mounting position of another.
The DMV has no gas pressure regulator. Where the burner needs a regulated pressure, a separate DUNGS regulator is installed in the gas train. An inlet sieve is fitted as standard, but DUNGS recommends a suitable gas filter upstream to protect the complete gas train. Measuring ports are G 1/8 on both sides upstream of V1, between V1 and V2 and downstream of V2, plus G 1/4 centrally upstream of V1 and downstream of V2. The valve contains no non-ferrous metals and is suitable for dry gases with up to 0.1 vol.% H2S.
Why Seven Star LLC?
Seven Star LLC supplies genuine DUNGS combustion controls to customers in Oman and the GCC. We verify model numbers and gas types, ensuring the correct double solenoid valve for your burner system.
Our engineers help you verify the exact model and revision before ordering, avoiding mismatches and delays.
Identifying the Correct Valve from the Nameplate
DUNGS combustion controls are sold in many closely related variants, so a replacement should always be matched to the label on the installed unit. The type designation, the article number, the rated inlet pressure, the connection size, the coil voltage and the approval details are all printed on the nameplate. Record all of them, together with the burner make and model, before placing an order for a DUNGS DMV-D 5125/11 ECO double solenoid valve. If the label is damaged, photographs of the valve body, the coil and the electrical connector help our engineers identify the unit.
- Type designation and article number from the label
- Supply voltage and frequency of the solenoid coils
- Maximum inlet pressure and gas family
- Flange or threaded connection size and orientation
Installation and Commissioning
Installation and commissioning must be carried out by qualified combustion personnel following the manufacturer instructions and local gas codes. Purge and clean the upstream pipework before fitting, since debris damages valve seats. Observe the flow direction arrow, use the correct flange seals, and support the gas train so no pipe stress reaches the valve body. After installation, carry out a leak test on all joints, check the tightness of both valve seats (by valve proving system or manual method as specified for the burner), then set the main flow adjustment on V1 during burner commissioning.
Maintenance and Troubleshooting
Include the double solenoid valve in every burner service. Typical issues are slow opening caused by low supply voltage or a failing coil, seat leakage caused by dirt, and pressure instability caused by a clogged upstream filter. Check the coil resistance and the supply voltage first, and replace worn units as a complete assembly rather than repairing sealed safety parts.
Use in Oman and the GCC
In the region, these valves are fitted on boilers, thermal oil heaters, bakery ovens, asphalt plants and industrial furnaces fired on natural gas or LPG.
DUNGS DMV-D 5125/11 ECO – Frequently Asked Questions
What is the DUNGS DMV-D 5125/11 ECO?
A double solenoid valve combining two Class A, Group 2 fast-acting solenoid valves in one DN 125 housing, giving double safety shut-off for gas burners.
Which gases can it be used with?
Natural gas, LPG and town gas.
What connection size does it have?
It has a DN 125 flange connection (PN 16).
What should I confirm before ordering?
Confirm valve size, gas type, coil voltage, burner capacity and gas supply pressure. Our team can check the selection for your burner.
Where can I buy DUNGS double solenoid valves in Oman?
Seven Star LLC supplies genuine DUNGS double solenoid valves and spares in Oman and the GCC. Request a quote below.
Request a Quote for DUNGS DMV-D 5125/11 ECO Gas Double Solenoid Valve
For the DMV-D 5125/11 ECO or any related control and instrumentation requirement, contact the Seven Star LLC team. Submit a formal inquiry through our RFQ page with your configuration and application details, and our specialists will respond with a detailed commercial proposal and the official DMV-D documentation.
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Datasheets & Documents
- Datasheet DUNGS DMV-D 5125/11 ECO Gas Multi-Block Double Solenoid Valve Datasheet Download
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About brand
Open the gas train cabinet of a boiler or an industrial burner and there is a good chance the valves and pressure switches inside are marked DUNGS. Karl Dungs was founded in 1945 and is based in Urbach, Germany, and it makes gas valves and combustion controls for heating, process heat and gas engines. Seven Star LLC sources and supplies DUNGS gas valves, regulators, pressure switches and valve proving systems for burner operators in Oman, identified by type designation and article number.
DUNGS product families listed here
The listed DUNGS gas valves and controls make up most of a burner gas train. The FRS is a spring-loaded gas pressure regulator in sizes from Rp 3/8 to DN 150. The GW A6 is a compact pressure switch for gas and air. DMV-D double solenoid valves, such as the DMV-D 507/11 and DMV-D 5125/11, combine two safety shut-off valves in one body, and the SV-D is a single safety solenoid valve. The MB-DLE 405 to 412 B01 GasMultiBloc integrates a filter, a regulator and two valves in one compact unit. The VPS 504 is a valve proving system that tests the tightness of the two shut-off valves before burner start.
Where DUNGS equipment is used
DUNGS combustion controls are fitted to steam and hot water boilers, thermal oil heaters, air heaters, dryers, ovens, kilns and furnaces, and to the fuel gas lines of gas engines. Buyers in the GCC typically need them as replacements on packaged burners in food plants, laundries, hospitals and building plant rooms.
Ordering DUNGS parts: what we need
Send the full type designation and the six-digit article number from the nameplate, for example VPS 504 S04 with 219881, a 230 V version. Add the coil voltage and frequency, the connection (Rp thread or flange DN), and the maximum inlet pressure. For an FRS regulator, state the outlet pressure and the spring range or spring color. For a GW pressure switch, state the setting range, which is part of the type name. For a MultiBloc, say whether operation is single-stage or two-stage. The burner make and model help us confirm the match.
Browse DUNGS products by category: Solenoid Valve.
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Frequently Asked Questions
What is the DUNGS DMV-D 5125/11 ECO?
It is a double solenoid valve with two fast-acting Class A, Group 2 solenoid valves in a DN 125 flanged body for burner safety shut-off.
What is the function of the two valves?
The two solenoid valves provide double safety shut-off of the gas supply for automatic burner control.
Which gases can the double solenoid valve handle?
It is suitable for natural gas, LPG and town gas.
What is the connection size?
The unit has a DN 125 flange connection (PN 16).
What details should I include in my inquiry for the DUNGS DMV-D 5125/11 ECO double solenoid valve?
Send the part number, your system details and the required quantity through the RFQ page. Seven Star LLC confirms the exact configuration, the matching accessories and the commercial terms for your project.
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