Automatic
Self Cleaning Water Filters Model H
-
Minimum
operating pressure: 29 psi
-
Maximum
operating pressure: 145 psi
-
Clean filter
pressure loss: 1.45 psi
-
Maximum
water temperature: 149ºF
-
Filtration
range:
50 - 3000 micron
-
Control
voltage:
12 VDC, 24 VAC
-
Flush water
consumption (at minimum working pressure): 21 gallons
-
Filter housing
materials: carbon steel coated with baked on epoxy
Filtration
Water enters the filter through
the "Inlet" (1) and passes through the coarse
screen (2) that functions as a "first stop"
for rough particles. Water then reaches the fine screen (3),
which further purifies the flow by separating smaller particles
from the water. As more 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 (3) and its external section.
Cleaning
Process
When the difference in pressure
reaches the preset value on the differential pressure indicator,
a series of events is triggered while the 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) 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 (7) around
its axis. The pressure released from the piston and the high
pressure inside the filter cause linear movement of the dirt
collector. The combination of linear movement and rotation
efficiently cleans the entire internal screen (3) surface.
The flushing cycle
takes 10 seconds. The flushing valve (4) closes at
the end of the cycle and the increased water pressure returns
the hydraulic piston (5) to its initial position. The
filter is now ready for the next cycle, with clean and filtered
water flowing through the "Outlet: (10).
General
Description of the Electronic Control System
The electrical system controls
the cleaning process through the differential pressure indicator,
(11) that closes a circuit and triggers the electronic
control unit (12) controlling the opening and closing
of the flushing valves (4) via the solenoid valve (13).
The flushing cycle, which takes a total of 10 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 Automatic Self Cleaning Water Filters
- High Pressure Rating psi:
232, 352, 580
- High Temperature Range:
Withstands temperatures up 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
Automatic Self Cleaning Water
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 Automatic Self Cleaning Water Filters
include: cooling towers, heat exchanger protection, ion exchange
protection, industrial wastewater recycling, effluent polishing
water supply and filtration for micro irrigation.
Automatic
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Series | E Series |
H Series | SE
Series | MiniTwist
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