Filtration and Ventilation Unit, FVU, TWEKO

TWEKO FVU series filtration and ventilation units are industrial dust collectors designed for extraction and cleaning of dust-laden air. The systems remove dust and fine particles from the airflow and can be used with abrasive blasting and spray-painting chambers as well as in other industrial dust-extraction systems.

The FVU series combines a high-capacity fan, cartridge filter elements, a dust-collection hopper and an automatic compressed-air pulse-cleaning system. Depending on the configuration, airflow capacity ranges from 9,000 to 30,000 m³/h.

Applications

• Abrasive and shot blasting chambers
• Paint shops and production areas
• Metalworking facilities
• Welding and grinding areas
• Industrial dust-extraction systems
• Local and centralised industrial dust collection

Operating Principle

Dust-laden air enters the filtration and ventilation unit. Large and heavy particles are separated from the airflow by gravity and fall directly into the dust-collection hopper.

Finer particles are distributed evenly between the cartridge filter elements. Dust is retained on the outer surface of the cartridges, while cleaned air passes through the filter media and exits the unit.

• Extraction: contaminated air enters the unit
• Pre-separation: large and heavy particles settle out
• Filtration: cartridge filters capture fine dust
• Collection: separated dust accumulates in the lower hopper
• Discharge: cleaned air exits the unit

Pulse-Jet Filter Cleaning

During operation, a layer of dust gradually accumulates on the outer surface of the filter cartridges. An automatic pulse-cleaning system is used to restore filter permeability.

Compressed air is supplied through solenoid valves in short pulses into the inside of the filter elements. The air pulse dislodges accumulated dust from the outer surface of the cartridge, allowing it to fall into the lower hopper for subsequent removal.

• Automatic regeneration of filter elements
• Compressed-air pulse cleaning
• Solenoid-controlled valves
• Maintains filter airflow capacity during operation
• Reduces the need for frequent manual cartridge cleaning

Filtration System

The main filtration components of the FVU are cartridge filters with a large total filtration area. Depending on the model, the filter surface area ranges from 162 to 540 m², allowing large volumes of dust-laden air to be processed.

• Cartridge filter elements
• Large filtration surface area
• Capture of fine solid particles
• Automatic filter regeneration

Ventilation System

An industrial fan installed inside the unit generates the airflow and negative pressure required by the connected extraction system.

• Airflow capacity: 9,000–30,000 m³/h
• Maximum aerodynamic resistance: 2,200–2,500 Pa
• Electrical power depending on model: 11–30 kW

Construction

• Heavy-duty sheet-steel housing
• Integrated industrial fan
• Cartridge filter elements
• Clean-air chamber
• Pneumatic pulse-cleaning system
• Solenoid valves for filter regeneration
• Dust-collection hopper
• Dust discharge system

Key Parameters

• Airflow capacity: 9,000–30,000 m³/h
• Filtration area: 162–540 m²
• Maximum aerodynamic resistance: 2,200–2,500 Pa
• Electrical power: 11–30 kW
• Filter cleaning method: compressed-air pulse cleaning

Main Benefits

• High airflow capacity: processes up to 30,000 m³ of air per hour
• Large filtration area: up to 540 m² of filter surface
• Automatic regeneration: cartridge filters are cleaned by compressed-air pulses
• Stable extraction: industrial fan maintains the required airflow and negative pressure
• Versatility: suitable for integration into different industrial dust-extraction systems
• Heavy-duty construction: sheet-steel housing for industrial use
• Configurable capacity: airflow and filtration area can be selected according to process requirements

TWEKO FVU series filtration and ventilation units provide high-capacity extraction and filtration of dust-laden air in industrial environments. Their combination of cartridge filtration, automatic pulse cleaning and high-capacity ventilation allows the FVU to operate either as a standalone dust collector or as part of a complete industrial air-cleaning system.