Self Cleaning Filters - With Plunger Scraper Action
HD Process supply a range of self-cleaning filters including plunger filter types including the DFA range shown here with PDF below.
This unit comes in a range of sizes and flowrates for various flowrates in screen sizes from era .07 m² through to 2.84 m²
The plunger-type filter has less interaction with the product compared to a continually rotating scraper. This approach can be particularly useful where product is soft or difficult to clean off from the filter area. A single action plunger and purge effectively removes a large amount of waste product with a single action on the filter surface.
CONTROLS -
The basic version is the time control type. The cleaning cycle and the purging cycle are set by time cycle.
Advanced version has both differential pressure(D.P. for short) and time cleaning modes. The differential pressure indicates the filter cake accumulation and the filter element clogging. When it reaches setpoint the cleaning sequences are triggered.
The recommended D.P. value is 50Kpa (adjustable eg 10 to 100Kpa).
Various other control patterns are available along with control feedback
This unit is also available in a range of explosionproof options
