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Polytech - Model P Series -Gravity Bed Filters
Polytech`s gravity bed filters are an automatic filtration solution utilizing low-cost bulk roll filter media, ideal for environments with moderate levels of contaminants. These filters work by allowing the contaminated liquid to pass through a non-woven synthetic filter fabric supported by a conveyor belt. As contaminants build up on the media, the liquid flow reduces, raising the liquid level and triggering a float switch that activates the conveyor to advance the media. This design eliminates the need for seal maintenance present in deep bed filters that use submerged edge seals by containing the entire liquid pool in the filter paper. Gravity bed filters can be provided as a filter chassis alone or as a complete system with a tank, pump, and electrical controls, and they may be integrated with other filtration systems to meet specific clarity requirements. For more tailored solutions, Polytech offers engineering consultations to address particular process needs.
Polytech’s gravity bed filters offer automatic operation and use low cost bulk roll filter media. They are well suited to applications with moderate contaminant levels. Gravity bed filters are a great, reliable filtration solution with no seal maintenance.
- Creepfeed Grinding
- Surface Grinding. Rough: 63 rms & Above
- Surface Grinding. Medium: 32 - 16 rms
- Internal & Centerless Grinding
- Abrasive Belt Grinding
- Cutoff Saws
Contaminated liquid flows through non-woven synthetic filter fabric supported by the conveyor belt.
As filtered contaminants restrict the liquid flow, the liquid level rises and actuates a float switch which starts the conveyor.
Unlike so-called “deep bed filters” which utilize a submerged edge seal to prevent contaminated coolant from leaking directly into the filtered coolant tank, the filter paper contains the entire pool of liquid and filter paper is transported beneath the liquid. You get reliable filtration without seal maintenance.
Gravity filters are available as filter chassis only or fully outfitted with tank, pump and electrical controls. Gravity filters may be combined with other filters and separators such as:
- Magnetic Separators
- Cartridge Filters
- Depth Filters
to meet process and clarity goals. Speak to one of our engineers about your specific needs.