What is a disc filter? How does a disc filter work?

Disc filters comprise a series of grooved plastic discs stacked together. Water passes through the pores that are created by the grooves while debris and particles that are larger than the groove size are trapped along the grooves. The size of the grooves gives a filtration grade from 25 – 400 microns.Disc filters are an excellent solution for filtering surface water systems containing a high load of organic materials, algae, silt and clay.

How does a disc filter backflush work?

Activated by a predefined command (differential pressure or time), alternate units of the disc filter system go into backflush mode. The inlet valve is shut as the drain is automatically opened. During the backflush process, the compression spring is released and the pressure difference is eliminated. The spine piston rises upreleasing the pressure on the discs. Tangential jets of clean water are pumped at high pressure in the opposite direction through nozzles at the center of the spine. The discs spin free and clear, loosening the trapped solids. Solids are quickly and efficiently flushed out through the drain.

ScreenGuard^™ Filters:
Bigger. Better.

Groundwater or harsh water can pose a real challenge to the efficient operation of your sprinkler irrigation system, and the productivity of your investment. Thanks to its industry-leading filtration area and low back-flush cycle, ScreenGuardTM automatic, semi-automatic and manual filters ensure uncompromised filtration, uniform flow uniformity and higher yields over the long-term, while significantly lowering your filtration operating costs.

The Lean & Mean Filtration Machine

When should you choose to use ScreenGuard™ filters?

Screen filters are highly recommended for irrigation using poor quality water, for heavy-duty usage, and in the following conditions:

Primary filtration for well water and/or single use dripline applications in multiple water sources
Primary filtration for micro and open field sprinkler applications in various water sources
Primary filtration for landscaping applications

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Frequently asked questions

Disc filters comprise a series of grooved plastic discs stacked together. Water passes through the pores that are created by the grooves while debris and particles that are larger than the groove size are trapped along the grooves. The size of the grooves gives a filtration grade from 25 – 400 microns.

Disc filters are an excellent solution for filtering surface water systems containing a high load of organic materials, algae, silt and clay.
Activated by a predefined command (differential pressure or time), alternate units of the disc filter system go into backflush mode. The inlet valve is shut as the drain is automatically opened. During the backflush process, the compression spring is released and the pressure difference is eliminated. The spine piston rises up, releasing the pressure on the discs. Tangential jets of clean water are pumped at high pressure in the opposite direction through nozzles at the center of the spine. The discs spin free and clear, loosening the trapped solids. Solids are quickly and efficiently flushed out through the drain.