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Marwis DPF DUO PREMIUM

DPF DUO PREMIUM = CLEANING CABIN + DPF/FAP FILTER DRYER

This set of devices allows for maximum optimization of the regeneration process. An efficiently organized operator can work on three filters simultaneously.

Washes
Dries

Advantages of DPF DUO Premium:

-> A separate dryer doubles operational efficiency
-> We are the only ones offering a large-diameter hose for DPF connection. Large diameter = more water = more effective cleaning
-> Our filter mounting system is free from internal components inside the DPF filter tube that could block the water flow, allowing full utilization of the water and air pumps’ performance and reducing regeneration time.
-> Spacious cabin provides flexibility when securing the filter for cleaning. The operator, based on their experience, chooses the most suitable position for washing.
-> Protection against excessive filter pressure during cleaning
-> Protection against lack of airflow through the filter during drying
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-> Ability to set individual cleaning programs according to filter capacity
-> Stable filter clamping during drying
-> Three-stage dirty water filtration system
-> Water heating controller
-> Insulated water tank
-> On-site training available for customers

The device enables the removal of soot and ash from DPF/FAP filters without negatively impacting filter structure, restoring up to 99% of the rated flow capacity. Our technologists ensure that the cleaning procedures and detergents used are safe for both the environment and machine operators.

The operator uses an endoscopic camera to inspect the filter for mechanical damage. If melting, cracks in the ceramic core, or other visible mechanical defects affecting the DPF filter are detected, regeneration will not be possible.

The regeneration process takes place in an enclosed chamber equipped with filters preventing harmful contaminants from escaping into the machine’s room. Water with cleaning solution circulates in a closed loop and is filtered throughout the process, significantly extending the bath’s lifespan. The DPF DUO Premium cleans filters using water, chemical agents, and air. The precisely programmed, computer-controlled sequence of injecting water with chemicals and air—combined with pulses generated by compressed air—ensures highly effective regeneration.

After cleaning, an additional device dries the filter with air at 90°C, ensuring complete evaporation of the cleaning solution. After drying, the machine performs a final backpressure measurement. This measurement can also be performed prior to cleaning to compare values before and after regeneration. The device is equipped with a printer for printing test reports.

The washing time for passenger car or van filters is 20–40 minutes, enabling regeneration of up to a dozen filters within 8 hours. High efficiency combined with low operating costs ensures a fast return on investment.

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