
Dry Electrostatic Precipitators
The BETH Dry Electrostatic Precipitators are designed to significantly reduce dust emissions, achieving values below 20 mg/m³ (0.00873 grain/ft³)…
Airflow capacity
Up to 1,500,000 Am³/h
Residual dust
< 20 mg/m³
Gas temperature
Up to 420 °C
Product Overview
Engineered for continuous duty.

The BETH Dry Electrostatic Precipitators are designed to significantly reduce dust emissions, achieving values below 20 mg/m³ (0.00873 grain/ft³) under standard conditions, well within legal limits. These systems offer numerous benefits over traditional media filtration systems, including:
The dust-laden process gas enters the electrostatic precipitator horizontally, where it is evenly distributed to create a consistent flow across the entire filter profile. High-voltage discharge electrodes generate an electric field that charges the dust particles as they pass through. These charged particles are attracted to the collecting electrodes, where they combine with already separated dust. The accumulated dust is dislodged by drop hammers and falls into the filter hopper for removal via the material discharge system. The purified gas is released out of the clean gas hood.
Why BETH Dry Electrostatic Precipitators
Low Energy Consumption
They require less energy to operate, making them more cost-effective and environmentally friendly.
High Operational Reliability
These precipitators are designed for consistent and dependable performance, reducing the likelihood of operational disruptions.
Low Maintenance Requirements
Their design minimizes the need for frequent maintenance, which can save both time and money.
Cost Efficiency
They have lower initial investment costs, making them an economically viable option for industries looking to reduce emissions. These key features make BETH Dry Electrostatic Precipitators an efficient and cost-effective solution for controlling dust emissions in various industrial applications.
Where Dry Electrostatic Precipitators excel
- Low pressure drop safes energy (approx. 250 pa)
- Suitable for 24/7 operations
- Low maintenance, no bags to replace
- Reliable compliance with legal emission limits
- Standardized spare parts
- High operational safety
- High availability
- High energy efficiency
- High durability
- High separation grade
- Quick and cost-effective installation thanks to pre-assembled components
- Custom-designed to fit seamlessly into any location
The Range
4 configurations,one engineering standard.



01 / 04Mini Electrostatic Precipitator
Introducing the BETH Mini ESP, an innovative solution designed for efficient gas filtration for small boilers up to 1.3 MW. With their compact design, these units are ideal for installation in most basements. Fully pre-assembled, our Mini ESP offers quick and hassle-free installation, getting you up and running in no time.
- Space-saving
- Heat resistant
- Versatile design
- Energy efficient



01 / 04Small Electrostatic Precipitator
Introducing BETH Small Electrostatic Precipitators, designed specifically for medium-volume gas applications. With a range of sizes available, these filters are perfect for ensuring efficient and reliable particle separation in small biomass boiler plants between 1,000 and 7,000 kW. As state subsidy programs continue to promote the use of biomass for power generation, there is an increasing need for cost-effective and hassle-free solutions that meet stringent clean gas dust content requirements.
- Space-saving
- High-temperature resistant
- Versatile design
- Energy efficient



01 / 04Standard Electrostatic Precipitator
The BETH Standard ESP series, our original and trusted solution, has a track record of success across numerous applications. Ideal for airflow capacities ranging from 20,000 Am3/h to 200,000 Am3/h (11,800 ACFM to 118,000 ACFM), these units deliver reliable performance. For specialized needs, they can be equipped with two separate electrical fields. With our innovative modular construction system, we customize each unit to seamlessly integrate into your facility, ensuring optimal fit and functionality.
- Cost-efficient
- High-temperature resistant
- Versatile design
- Energy efficient


01 / 03Industrial Electrostatic Precipitator
Introducing our Industrial ESP Series, engineered for the most demanding heavy-duty operations, delivering unparalleled reliability. Designed to handle airflows ranging from 25,000 to 1,500,000 Am³/h (15,000 to 881,000 ACFM), these units are optimized for peak performance. Equipped with advanced 3-phase or multifrequency high voltage transformers, our ESP systems ensure superior particle separation, achieving residual particle levels below 20 mg/m³. Experience the ultimate in industrial air filtration with our top-of-the-line ESP technology.
- Best reliability
- High-temperature resistant
- Versatile design
- Unmatched separation performance
Specifications
At a glance.
Standard series figures. Every BETH system is sized and configured to the individual application.
- Airflow capacity
- Up to 1,500,000 Am³/h
- Residual dust
- < 20 mg/m³
- Gas temperature
- Up to 420 °C
- Pressure drop
- < 250 Pa