Compact
Screen Filters - Self Cleaning Model B
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Minimum
operating pressure: 29 psi
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Maximum
operating pressure: 145 psi
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Clean filter
pressure loss: 1.45 psi
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Maximum
water temperature: 149ºF
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Filtration
range: 50 - 400 micron
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Control
voltage: 12 VDC, 24 VAC
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Available
connections: M = Threaded socket V= Vic. F = Flange
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Flush water
consumption (at minimum working pressure): 2.11 gallons
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Filter housing
materials: carbon steel coated with baked on epoxy
Filtration
Water enters the filter through
the "Inlet" (1). The water then reaches the
fine screen (2), which purifies the flow by separating
smaller particles from the water. As the water flows through,
impurities build up on the fine screen. As impurities on the
screen accumulate, a pressure imbalance is built up between
the internal section of the fine screen (2) and its
external section.
Cleaning
Process
When the difference in pressure
reaches the preset value on the electronic control unit (3),
a series of events is triggered while water continues to flow
to the system units. The flushing valve (4) opens,
pressure is released from the hydraulic piston (5),
and water flows outside. Pressure in the hydraulic motor chamber
(6) and the dirt collector (7) is significantly
lowered, and the dirt collector nozzles (8) begin a
suction process. The water flows through the hydraulic motor
(9) which rotates the dirt collector around its axis.
The pressure release from the piston and the high pressure
inside the filter causes linear movement of the dirt collector.
The combination of linear movement and rotation efficiently
cleans the entire internal screen surface.
The flushing cycle
takes 5 seconds. The flushing valve closes at the end of the
cycle and the increased water pressure returns the system
to its initial position. The filter is now ready for the next
cycle, with clean and filtered water flowing through the "Outlet:
(12).
General
Description of the Electronic Control System
The electrical system controls
the cleaning process through the differential pressure indicator,
(10) that closes a circuit and triggers the electronic
control unit (3) controlling the opening and closing
of the flushing valves (4) via the solenoid valve (11).
the flushing cycle, which takes a total of 5 seconds, resumes
its operation whenever the difference in pressure reaches
the preset pressure value set on the differential pressure
indicator. If the difference in pressure remains unchanged
after one cycle, another cycle will start after a delay of
25 seconds.
Special
Options and Features of Compact Screen Filters
- Temperature Range - withstands
temperatures up to to 203ºF
- Anti Frost - special control
system for cold climate
- Available controls - Electronic,
timer, air-actuated, computerized and custom designed
- Special Coating - Prevents
deterioration from exposure to sale/sea water
Sectors
Served
Compact Screen Filters are used
in a wide range of applications in the Agricultural, Industrial,
Municipal and Commercial sectors. The main industries include:
steel mills, petroleum, plastics, chemicals, electronics,
textile, paper mills, food, beverage and power stations.
Typical applications for Compact Screen Filters include: cooling
towers, heat exchanger protection, ion exchange protection,
industrial wastewater recycling, effluent polishing water
supply and filtration for micro irrigation.
Automatic
| B
Series | E Series |
H Series | SE
Series | MiniTwist
|
