Filter Serie SCR L Micron

from 20 to 5 micron

MAIN TECHNICAL CHARACTERISTICS:

  • Continuous flow including during washing phase
  • Filtration degree from 20 to 5 micron
  • Maximum flow rate 260 m³/h with a single filter/li>
  • Minimum quantity of water at discharge

APPLICATIONS

  • Prefiltration in UF systems
  • Evaporation towers
  • Spray nozzle protection
  • SHeat exchangers
  • Sea water


3D FILTERING TECHNOLOGY

The filtering element of the filtering fabric is made of AISI316 sintered fibre. This ensures high permeability with excellent filtering efficiency owed to the fabric’s thickness (hence called 3D) and the diameter of the fibres.

At equal surface and pressure differential, this type of construction allows retention of a much greater amount of TSS (Total Suspended Solids) compared with traditional single thread fabrics. Additionally, exposed to Delta P, the fibres are far more stable compared with single thread fabrics.

The filtering fabrics used are tested in our laboratories to assess the performance of the main filtering process.
Based on performance assessments, the most suitable fabrics for the requested use are selected.

The table shows load capacity data based on various filtering fabrics at various speed.

Data collected at ∆P = 5 P.S.I.

DHC diagram for the data shown on the table



FILTRATION EFFICENCY

Below is the chart of filtration efficiencies for 3D fabrics and different degrees of filtration at the reference speeds.

3D fabrics with different degrees of filtration at the reference speeds.

Particles Dimension [μm]

Below are the comparisons between the efficiencies of the 3D fabric and the monofilament fabric for different degrees of filtration.

Comparison between 3D fabric and monofilament fabric with 5 μm filtration degree.

Particles Dimension [μm]

Comparison between 3D fabric and monofilament fabric with 10 μm filtration degree.

Particles Dimension [μm]

Comparison between 3D fabric and monofilament fabric with 20 μm filtration degree

Particles Dimension [μm]

HOW IT WORKS

The water enters the filter at (IN) inlet point and runs through the filtering cylinder (1) in outward direction. Thus, all suspended nondeformable solid particles larger or equal to the filtration degree set are retained. The filtered water flows out through the outlet (OUT) pipe.

REGENERATION

Constant deposit of suspended solid particles inside the filtering cylinder (1) obstructs the passage of water, causing a pressure differential (∆P). At a preset ∆P value (ranging from 0.3 ÷ 1 Bar) an automatic cleaning cycle of the filtering (1) cylinder starts. This activity begins with a signal that opens the discharge valve (2) allowing communication of the suction nozzles (3) with the outside environment. At the same time, the electric motor’s (4) rotary motion allows the nozzles to inspect the entire filtering surface. Dirt is removed through the discharge valve (2). The cleaning cycle lasts 15 sec.

FILTER ELEMENT AND CLEANING SYSTEM





FILTRATION PHASE


WASHING PHASE


             

PICTURE OF FILTER INTERIOR

 SCRL_ELEMENTO FILTRANTE

CONTROL

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



Technical Data are indicative and subject to change without notice

Correct calibration of the filter requires granulometric analysis, hardness, COD (Chemical Oxygen Demand) and BOD (Biochemical Oxygen Demand)

DURING THE RIGENERATION PHASE, THE DIFFERENCE IN PRESSURE BETWEEN THE MANOMETER INSTALLED ON THE DISCHARGE VALVE AND THE OUTLET ONE SHALL BE EQUAL TO 1 BAR. A SETTING AT HIGHER PRESSURE DIFFERENCESPEEDS UP WEAR OF THE INSIDE COMPONENTS


DESCRIPTION OF PARTS

 

FILTERING MESH FLOW RATE TABLE FOR SCR L FILTERS (m3/h)

The flow rates indicated refer to a load loss of 0.2 Bar with clean, filtered water.

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