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One type of self-cleaning filters, There are internal scraping type and external scraping type according to the different positions of the scraper, and there are electric scraper type and pneumatic scraper type according to the different driving force. The Scraping Self-cleaning Filters use the scraper to automatically remove the particulate impurities attached to the surface of the filter element and discharge them through the sewage valve. It can continuously filter on-line and end the heavy replacement and cleaning of the filter element. It does not produce disposable filtering consumables. However, because the highest precision of the filter can only be 20μm, it is not suitable for occasions with higher precision requirements.
Common products parameters：
Model | D219 | D273 | D325 | D377 | D400 | D450 |
Filter element size(mm) | 160*400 | 203*600 | 225*680 | 300*680 | 325*680 | 380*680 |
Effective filtration area(㎡) | 0.20 | 0.43 | 0.48 | 0.65 | 0.66 | 0.89 |
Total volume(L) | 20 | 41 | 70 | 100 | 110 | 128 |
Inlet/Outlet size | DN25/40/50/80/100/125/150/200 | |||||
Average filtration velocity | Related to Inlet/Outlet size, Filtration accuracy, the characteristics of liquid | |||||
Sewage valve size | DN25/40/50 | |||||
Filtration accuracy | 20-1000μm | |||||
Max. Operating Pressure | 1.0MPa,or higher | |||||
When to clean | 0.05-0.1 MPa up（adjustable）or Every 1 hour（adjustable） | |||||
Control instrument | Differential pressure transmitter or switch, Time Relay | |||||
Scraper driving force | Geared motor or compressed air | |||||
Filter element Materials | SS304/SS316L/2205/TA2 | |||||
Vessel Materials | SS304/SS316L/2205/TA2 | |||||
Scraper Materials | Carbon fiber/PTFE/SS304/SS316L/2205/TA2 | |||||
Ways to control | The motor runs continuously or intermittently, Time or Pressure difference control automatic blowdown, Manual blowdown | |||||
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2021-02-22 15:48:15