STANDARD FEATURES include the following:

• Size: 3" & 4" disc filter batteries; 6-10" inlet/outlet manifold diameter
• Capacity: Medium and high flow (440-2,202 GPM)
• Micron-precise filtration of solids
• Innovative filter design captures and retains large amounts of solids
• Long-term operation with little maintenance
• Operation is easy and requires no special tools
• Continuous flow during wash

SPECIAL FEATURES

• Most efficient semi-automatic backwash system on the market
• Differential pressure compression of the discs during filtration allows for loosening of the discs during backwash
• Modular batteries allow for easy expansion of system

DATA	2 UNITS	3 UNITS	4 UNITS
Maximum pressure:	145 psi	145 psi	145 psi
Minimum pressure for backwash:	35 psi	35 psi	35 psi
Flow rate (40-140 mesh, 100-400µ):	410 gpm	440 gpm	616 gpm
Filtration surface area:	574 in2	861 in2	1,148 in2
Filtration volume:	216 in3	325 in3	433 in3
Battery length:	26-24/32"	41-23/32"	56-22/32"
Battery height:	38-5/32"	38-5/32"	38-5/32"
Battery width:	35-31/32"	35-31/32"	35-31/32"
Weight:	350 lbs.	462 lbs.	571 lbs.

DATA	3 UNITS	4 UNITS	5 UNITS
Maximum pressure:	116 psi	116 psi	116 psi
Minimum pressure for backwash:	35 psi	35 psi	35 psi
Flow rate (40-140 mesh, 100-400µ):	700 gpm	1,056 gpm	1,320 gpm
Filtration surface area:	1,722 in2	2,296 in2	2,870 in2
Filtration volume:	650 in3	866 in3	1,083 in3
Battery length:	47-8/32"	63-20/32"	78-24/32"
Battery height:	55-4/32"	55-4/32"	55-4/32"
Battery width:	41-11/32"	41-11/32"	41-11/32"
Weight:	561 lbs.	759 lbs.	902 lbs.

The Semi-Automatic Disc Filtration System consists of filters that are modular, and Medium & High Capacity. The number of filters in the battery range between three and eight, according to the needs of the application (i.e. the flow rate).


In the 3" Angle Filter Battery, one element of filtration is inside each filter. In the 4" Super Leader battery, two elements of filtration are inside each filter unit, composed of a stack of grooved discs. The two elements of filtration work togather in parallel. For further information, see the explanation of Disc Filtration Technology.

The inlet on each filter has a 3-way valve with two positions:

1. Filtration position — where the inlet of the filter is open, this allows the flow of water from the inlet manifold into the filter and through the element of filtration to the outlet manifold and to the customer.
2. Backwash position — where the inlet to the filter is closed, and the drain port is open. This allows clean water from the outlet manifold to flow in the opposite direction into the filter, clean the discs of the filter element, and flush the solid impurities from the filter to the drainage through the drain manifold. The cleaning process of the disc filtration element involves partial releasing of the pressure from the compressed discs and flushing of the discs with the full flow rate (of the filter) in the opposite direction to the drain. This technology is recommended for good and average qualities of source water, with 40 to 120 mesh grades of filtration. The filtration process begins and a continuous supply of clean water goes on, once the flow of source water to the system starts, and until it ends.

The automatic start of the backwash processes is run by a controller. When the filter is loaded (with solid impurities) the difference of pressure between the inlet and the outlet of the filter rises. A differential pressure gauge detects the critical difference of pressure that was programmed on it, and transmits a signal to the control unit, which then starts and runs a backwash process of the filters in the battery, one after the other. Only one filter at a time is cleaned, while other filters in the battery continue to supply clean water to the downstream, and for the backwash process.