In Europe, occupational health and safety at the workplace is becoming increasingly important. At the same time, production processes are becoming increasingly complex and particle sizes are becoming smaller and smaller. All these factors have resulted in a rising demand for extraction and filter technology that not only reliably protects systems and worker’s health, but also takes changing process parameters into account. Standards are extremely high, particularly in ATEX areas, where explosive air/dust mixtures can develop. Different factors, such as the required air flow rate, filter size, process integration, safety regulations and zone classification, etc. all have to be taken into account.
TBH GmbH offers different ATEX compliant extraction and filter systems for such applications. Among other things, the two different sizes offered in the FP series cover a wide range of potential customer applications. The FP 150 ATEX system, based on the existing FP 150 system, is equipped with a cleanable cartridge filter meaning that built-up dust on the filter can be removed using bursts of compressed air, which in turn considerably increases the service life of the system. Various design features, as well as a special ATEX-tested particle filter (filter class H13 in accordance with DIN EN 1822) contribute to the system’s safety. This extraction and filter system is used in areas with a required extraction volume of approx. 250m³/h and has a maximum vacuum level of 21000 Pa. This makes it optimal for extracting particles and emissions even in narrow intake areas and with longer suction lines.
FP 211 ATEX or FP 213 ATEX extraction and filter systems are used in applications with multiple extraction sites and/or large amounts of dust. Both systems, as opposed to the FP 150 ATEX, have six instead of just one cleanable filter cartridge. The FP 211 ATEX with an air flow rate of approx. 1500 m³/h and max. 3000 Pa, or the FP 213 ATEX with an air flow rate of approx. 800 m³/h and max. 15000 Pa are used according to application requirements (intake area, suction line length). They are particularly suited for larger machining processes and offer a longer service life. Thanks to various design modifications and adjustments, as well as a special ATEX particle filter (filter class H13 in accordance with DIN EN 1822), systems from the FP 200 ATEX series also meet ATEX requirements. Cleaned air can subsequently be diverted back to the processing area without any problems. Heating costs can also be saved in this way.
The systems were designed and constructed in accordance with the ATEX Directive (94/9 EC ATEX Product Directive) and documentation has been presented to a notified body (IbexU) in accordance with the Directive. In order to allow for easy integration into the overall system and to simplify operation, the systems are not only equipped with a filter monitoring mechanism (differential pressure), but also feature fully adjustable speed control and malfunction indicators. The interface with a start/stop function, a change-filter signal and external speed control allows customers to monitor the entire system for error messages. This means users can simply integrate the extraction and filter system into their processes, and, depending on the manufacturer, use this system to control extraction and filtration.
As with all extraction and filter systems, TBH GmbH’s top priorities for the ATEX series are the quality and reliability of the systems. The systems’ compact design, motor designed for continuous operation, extensive control options and numerous other features set them apart from competing products on the market.
Picture: TBH Extraction and filter systems FP 211/213 ATEX (left) and FP 150 ATEX (right)