Fully Automatic Backflushing Filter Type ABF 50 - 1000 |
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Application |
| INTERNORMEN - backflushing filters are primarily used for filtration of
highly contaminated liquides.
They are suitable for filtering fuels, lubrication oils, solvents, machine tool cooling
lubrications, chemical process cleaning fluids, water treatment plants in the power industry,
in the food sector and for filtration of cooling- and seawater.
This filter type is designed to operate trouble free in batch format or continuously. The
filters may also be used in hazardous areas with all electrical components being designed
in accordance with explosion proof classes, for example Eex d2 II CT4.
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Construction |
| The filter type ABF consists of a filter housing with dished bottom and a flat
removable cover. Manufactured in either carbon or specific stainless steels, for example
1.4541 (AISI 321), 1.4571 (AISI 316), 1.4539 (AISI 904L) or other high alloy steels, such
as Hastelloy C22, Alloy 624, Inconel, CuNi 90/10 The housing cover sealing is selected,
depending on existing operational conditions, such as pressure, temperature and fluid to
be filtered.
Two different kinds of sealings are available: O-Ring sealing or a an special cartridge
construction suitable for high pressure and temperatures as well as for dangerous liquids.
The product inlet is located at the lower portion of the filter housing and the product
outlet at the top, complete with connecting flanges according to DIN/ANSI as standard.
The contaminant discharge point is installed at the lowest point of the filter and equipped
with a shut-off valve and flange connection to DIN/ANSI as standard. The vent connection
is located at the highest point of the housing.
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Installation and Start Up |
ABF-backflushing filters are installed vertically in an existing pipeline. Product
inlet and outlet are equipped with appropriate valves and fittings, and connected to the
existing pipework. Individual motors are internally wired and connected to the control box.
Cable connection between the control box and mains is to be carried out on site. Care must
be taken during the start up that all flange connections have been tightened via a torque
wrench, thus ensuring a tight seal. Check if the discharge fitting is closed. Product inlet
and outlet are then opened, and the filter housing must be vented until the product is
discharged. The vent fitting must then be closed.
Press the start push button on the control box and the filter is now ready to operate.
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Filter Insert |
nsert consists of a V-profile wire filter element, wound in various diameters and
lengths. They are located in parallel, and loaded from inside to outside, while backflushing
is made from outside to inside with a cleaned liquid. The filter elements are available
in the following materials: Stainless steel AISI 304, AISI 347, AISI 316L, AISI 321,
Monel, Hastelloy C22, Inconel, CuNi 90/10.
The minimum operating pressure has to be 2,0 bar.
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