Membrane Filter Elements
46 Operating Manual Status: 06/2001/01
8 Service and Maintenance
General information on service and maintenance
LENSER filter elements must be checked for contamination at regular intervals, including
under the filter cloth.
Clean the filter elements with a commercially available high-pressure cleaning unit or filter
cloth washing devices.
Please make sure that the high-pressure water jet is not directed at one spot for an
extended time in order to avoid washing out the filtering surface.
Cleaning and maintenance work
Danger
Wear protective clothing when cleaning the filter cloths and filter elements:
• protective goggles
•gloves
• breathing protection
• protective clothing
Ask your safety representative for further information.
Improper working methods may cause injuries.
Component Cleaning work
Sealing edges Always clean dirty sealing edges.
- As a result of dirt deposits, the filter elements may be deformed and
permanently damaged, which may result in leakage of the
chambers.
Filter elements Filter elements can be cleaned chemically or sterilised.
- However, the resistance of the materials to the selected cleaning
agent must be ensured.
- When sterilising the filter elements with steam, the following table
must be observed.
material max. temperature max. reaction time
PP + TPE 120 °C 20 min
EPDM/NBR 120 °C 20 min
PVDF 135 °C 30 min
Handle for
automatic or
manual plate
shifting
Handles for automatic or manual plate shifting are to be checked at
regular intervals for wear of the sliding surfaces.
If, due to wear of the sliding surfaces, the filter elements no longer
hang in the centre of the filter press frame, the worn pieces or the
entire handles must be replaced.
DANGER
