USR-F | Sample Filter System with Ultrasonic Irradiation
Features and typical applications
Long-term stable sample filtration for use with process water analyzers
Sampling for analyzers such as TOC, conductivity, pH, dissolved O2, turbidity, etc.
Process water with high corrosion potential and degree of contamination
Defined and constant filtering
Automatic ultrasonic cleaning of filter element
Filter element in cross-flow configuration with pore sizes from 1 µm to 200 µm available
High reliability of the analyzer system
Minimized filter maintenance
On-line water analysis often places heavy demands on sample filtration. Aside from the expected high availability of the analysis system in conjunction with low maintenance requirements, defined constant filter characteristics must be assured.
LFE's USR-F sample filter system helps to meet these requirements using a filter element in cross-flow configuration. The filter element is irradiated at adjustable, regular intervals and defined duration by ultrasonic energy. The ultrasound generator creates cavitation in the water sample which serves as the coupling medium.
The implosions of a tremendous number of micro cavitation bubbles results in the familiar excellent cleaning effect of this method. The particles loosened from the filter element are carried away by the main sample stream. The connected analyzer system can take the sample continuously from the cleaned filter element achieving considerably lower maintenance and longer service life.
LFE's sample filter consists of the corrosion resistant filter unit containing the ultrasonic transducer and a control unit with the time or remote controlled ultrasound generator. The control unit is housed in a water-protected (IP65) wall-mounted housing.
Filter element arranged in cross-flow configuration
Ultrasonic cleaning of filter element – time controlled via timer or remote controlled via digital inputs
Diverse filter elements with pore sizes from 1 µm to 200 µm available
Constant filter characteristics
High corrosion resistance of filter unit made of PVDF and ultrasound transducer made of Hastelloy®
High reliability and low maintenance
Technical specifications subject to change without notice
Ultrasound module - Sample filter
Ultrasound module / Filter head assembly: Wall-mounted, stainless steel housing with Hastelloy® transducer diaphragm Filter head assembly: PVDF; exchangeable filter material (various materials and pore sizes (1 - 200 µm) available)
see dimensional diagram below
Cable btwn. control unit and ultrasound module assembly: approx. 3 m