from 500 to 25 micron
MAIN TECHNICAL CHARACTERISTICS:
- Continuous flow including during washing phase
- Filtration degree from 500 to 25 μm on polyester mesh/ AISI316
- Maximum flow rate 1000 m3/h with a single filter
- Minimum quantity of water at discharge
- Pre-filtration in UF systems
- Evaporation towers
- Spray nozzle protection
- Heat exchangers
- Sea water
Water enters the filter through the IN inlet and goes through the filtering cylinder (1) from the inside to the outside. This will retain all non-deformable suspended solids that are the same size or bigger than the filtration degree installed. Filtered water leaves through the outlet pipe (OUT).
The continuous settling of suspended solids inside the filtering cylinder (1) obstructs the passage of water which results in a pressure difference (∆P). At a preset value of ∆P (range 0.3 ÷ 1 Bar) an automatic cycle will start to clean the filter cylinder (1). This operation begins with a signal that opens the discharge valve (2) and creates communication between the suction nozzles (3) with the outside environment. At the same time, the electric motor (4) creates a rotating motion which enables the nozzles to inspect the filtering surface. Dirt is ejected through the discharge valve (2). The cleaning cycle lasts approximately 15 seconds.
FILTER ELEMENT AND CLEANING SYSTEM
PICTURE OF FILTER INTERIOR
A switchboard controls the washing phases. The signal that starts the cleaning cycle is given by a differential pressure switch. The switchboard gives an “alarm” signal in case of problems in the washing system. These signals can be sent to a pre-existing control centre. The washing phase can also be controlled manually. The solenoid controlling the valve is pneumatic.
DIMENSIONS AND TECHNICAL DATA
*upon request 5 mm
These technical data are indicative and subject to changing without notice.
The max suspended solids at inlet is an important factor, because depending on their size distribution and their specific weight they can clog up the filter in a different way.
DURING THE REGENERATION PHASE THE PRESSURE DIFFERENCE BETWEEN THE PRESSURE GAUGE INSTALLED ON THE DISCHARGE VALVE AND THE OUTLET ONE MUST BE 0.5 / 1 BAR. SETTING THIS PRESSURE DIFFERENCE TO A HIGHER VALUE WILL ACCELERATE THE WEARING OUT OF INTERNAL PARTS.
DESCRIPTION OF PARTS
FILTERING MESH FLOW RATE TABLE FOR SCR L FILTERS (m3/h)