High efficiency filtration

Fine particle control in Dulevo Sweepers

During the mechanical collection phase, particles raised by the central brush are aspired and retained due to the depression created in the container by two suction fans.

The flow and head of these fans are sufficiently powerful to raise fine particles, without blocking filters. The result is a system capable of aspiring all fine and ultra fine particles, as well as light waste such as leaves, paper and plastic bags.

This particular fabric filtering system also retains the finest of particles and completes the sweeping cycle, while guaranteeing the re-emission of only clean air into the environment.

Medium-sized Dulevo sweepers have also been designed according to the mechanical-aspiring-filtering sweeping principle, with direct front collection.

Dulevo & GORE: together to protect the environment

Growth in harmony with the territory, while limiting environmental impact: this is the mission driving constant improvements to production activities through investment in new technologies to reduce consumption and optimise resources.

Constant research into increasingly innovative solutions and a continuous drive for improvement, coupled with insatiable curiosity: these are the cornerstones of the meeting of Dulevo and the GORE® Group.

Both top, state-of-the-art companies, aware of their common goal: environmental protection.

In working with the GORE® Group, Dulevo International has once more improved its fine particle filtering system.
The patented Dulevo mechanical-aspiring-filtering system, renowned for its power to filter fine and ultra-fine particles, has become the only one to guarantee the total elimination of PM10 particles, thanks to the application of GORE® filters.

After years of intense research, it can truly be said that the matching of both technologies has revolutionised all parameters linked to the concept of fine particle filtering, determining a new standard for the industrial and urban cleaning sector.

The GORE Group: history, properties and characteristics

When Roy Plunkett discovered Polytetrafluoroethylene (PTFE) in 1938, he had no idea of the extent to which it would revolutionise the world around him.

One day he opened a new container of tetrafluoroethylene gas and nothing came out. He weighed it to check it was full. He cut the container open in half and found a white powder instead of gas.

This powder was PTFE, a polymer of tetrafluoroethylene. From the moment of his discovery until today, PTFE has been used in a huge array of applications: automotive, chemical, pharmaceutical, IT, electronics, medicine, to name but a few.

The GORE filter applied to your Dulevo sweeper

Dulevo has over 30 years of experience in industrial and urban sweeping and has developed an extensively tested fine particle filtering system of proven quality. Collaboration with GORE® has further bolstered the prestige and quality which have always characterised the company.

The application of this innovative type of filter (available in all industrial and road sweeper models, starting from mod. 1100 up to mod. 5000) guarantees:

  • minimum filter maintenance. The filtering surface is entirely impenetrable to fine particles, and is therefore self-cleaning, even in the total absence of maintenance
  • Total filtering of PM10 fine particles of over 99%. Dulevo technology has perfected the already exceptional performance of its traditional system, with the application of GORE® filters, achieving PM10, PM5, PM2.5 and PM1 particle filtering standards deemed impossible until today
  • quality filtering which lasts over time. PTFE ensures that the machine's filtering qualities remain unaltered over time, so that particles always remain outside the membrane, preventing even partial blockage over time
  • improved cleaning quality. Thanks to a 35% increase in your machine's air flow, ensuring improved aspiration of fine particles and light waste
  • total resistance to external agents. The perfect functioning of your Dulevo sweeper shall never again be compromised by water, oil, vegetable and animal fats or chemical agents, even and especially in the most extreme environments
  • a useful filter life with a 5 year unlimited warranty. Even if used in extremely dusty environments, GORE® filters come with an unlimited 5 year warranty

The patented mechanical aspiring filtering system used on Dulevo sweepers, already renowned for their fine particle and ultra-fine particle filtering performance, have been perfected thanks to the exclusive application of Gore® filters, becoming the only one capable of entirely eliminating PM10 fine particles in civil and industrial environments.

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