Diesel Exhaust Aftertreatment
- / Diesel Exhaust Aftertreatment
Diesel Exhaust Aftertreatment
Modular passive exhaust gas aftertreatment system with continuous regeneration, for use with Holzhauer-Pumpen fire-fighting diesel engines according to VdS or NFPA/FM regulations.
With continuous regeneration.
As a complete unit ready for operation and installation for operation without additional auxiliary energy. The unit is equipped with one inlet and one outlet connection and can be integrated directly into the flue gas pipe system.
The filter inserts can be removed for maintenance without dismantling the housing. With complete thermal insulation and galvanised sheet steel cladding.
- Particle separation > 99.8 % (particle count measurement)
- CO reduction > 90%
- Soot number according to BOSCH < 0.5
- HCHO-formaldehyde up to 90%
- Reduction of exhaust gas temperature min. 350°C (filter inlet)
Expected emission data
- CO carbon monoxide < 30 mg/m³*
- Soot < 3 mg/m³*
*Values are based on exhaust gas volume flow at 5 vol.% residual oxygen
The system consists of sintered ceramic filter inserts with upstream oxidation catalysts in the required number and a safety bypass device to ensure the unrestricted operational readiness of the fire pump for the extinguishing duration even in the event of filter saturation resulting from possible motor malfunctions.
The passive particle filters are VERT approved by TRGS 554, BAFU, EMPA, Switzerland.
The unit is monitored electronically. All fault conditions are logged with all necessary data and can be read out. Faults are displayed on the pump control cabinet and are also available as a potential-free signalling contact for forwarding to a manned position.
The system is self-cleaning and does not require any maintenance by the system operator if it is operated properly and in accordance with its intended use and if the prescribed engine lubricants and fuels are used.
Fixing points for ceiling suspension on elevation are provided as standard.
Petrochemistry and Tank Farms
Requirements Storage facilities and rooftop tanks represent particular risk factors in petrochemical and chemical industry plants. Fires occurring in refineries and petrochemical plants produce…
Requirements Many factors play a crucial role here: The size of the sales areas, the critical properties of goods such as easy flammability or…
Requirements Special fire protection precautions must be taken during both the production and use of information technology. The most common type of fire in…
Requirements The most efficient and effective system concept must be developed individually for each individual research institution, because a failure can turn into an…
High-Rise and Residential
Requirements The aim of fire safety regulations in high-rise and residential buildings is primarily to save human lives, while firefighting is to prevent the…
Wood, Paper and Printing
Requirements In the woodworking and processing industry, a high fire load is often caused by combustible raw and auxiliary materials, by dust generation and…
Power Plants and Recycling
Requirements The electricity generated in power plants is vital for maintaining the economy and social life. Recycling plants protect our environment and serve to…
Hospitals and Hotels
Requirements In-patient fire protection ensures unhindered operation and safety of guests or patients who are unable to rescue themselves or are unfamiliar with the…
Logistics Centres and Warehouses
Requirements Logistics centres, high-bay and goods warehouses as well as large distribution centres contain large values. Technical and human errors, autonomous mobile robots, electric…
Metal and Plastics Industry
Requirements Injection moulding, extrusion, casting, centrifugal casting, welding, abrasive cutting, soldering or flame cutting – production in the metal and plastics industry is particularly…
Requirements Factories in the automotive industry are exposed to considerable fire risks. The risk of fire is very high in the production and storage…
Environmentally friendly fire protection with aesthetic appeal
The headquarters of a major car manufacturer is in Stuttgart. From there, the global business is managed with more than 173,000 employees worldwide.
Fire protection for fractioning plant
Our client employs a total of 30,000 people who refine oilseeds, maize, wheat and cocoa into food, animal feed, industrial and renewable energy products.
Petroleum Industry & Tank Farms
14 bathtubs per second
Nord-West Oelleitung GmbH
With 35 tanks and a total capacity of 1,600,000 m³, the NWO is one of the most important mineral oil import ports in Germany.…
Did you know …
Sprinklers react to increased temperatures around a fire source, not to smoke.
Let us help you!
Our employees explain and illustrate the requirements of standards and regulations as early as the initial consultation phase and thus facilitate the implementation and safe application in your daily work. In addition, they present engineering expertise spanning 50 years of hands-on application and research and thus provide our customers with a decisive competitive edge.