Uni-Tech Water Filter Systems

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Why a Pressure Filter

RES-KEM UNI-TECH pressure filters clarify water by removing sediment, turbidity, iron, unpleasant tastes and odors, suspended particles, and unwanted color which is commonly found in surface water. They can be used in a variety of service conditions including but not limited to: industrial, municipal, and institutional applications.

All filters require periodic backwashing to dispose of the accumulated debris. This is accomplished by backwashing clean water through the unit and then disposing of the effluent. During this phase, the different sizes of media separate into layers, preparing the filter bed for service. Because backwashing generally occurs at higher flowrates than those seen in service, oftentimes a proper backwash flowrate is not possible because the systems are designed for required service flowrates. However, by utilizing small or double or triple unit systems, the optimum backwash flowrates is lower; therefore, these systems can operate at higher service flowrates.

These pre-engineered systems can be custom designed to meet most applications by utilizing the correct tank and valve sizes to satisfy service flow requirements and accurate media choice depending on removal needs. They can be equipped to operate manually, semi-automatically or fully-automatically while requiring very limited technical knowledge.

Filter Bed

Several different types of filter beds are available:

Sand: The most common filter media, used in most standard systems. Generally a fine mesh sand is coupled with a coarse grain support bed to remove suspended solids and turbidity

Anthracite: performs nearly identical to a sand bed, but is used in applications where silica pick-up from the sand is objectionable.

In-Depth: These beds are composed of several layers of different media size. During backwash, they separate according to density, with the least dense type setting on top. Consequently, In-Depth filters allow higher loading rates and longer runs because of the depth and uniformity of the penetration of the particulate. A sand/anthracite bed is a typical configuration. In-Depth filters will remove sediment down to the 23-30 micron range.

Multi-Media: When top quality water is required and unwanted sediment is too small to be removed by an In-Depth filter, this type of bed is the preferred choice. Again, it consist of multiple layers of increasing grain size, but adds garnet to the combination of sand and anthracite. Multi-Media filters will remove sediment down to the 10 micron range.

Activated Carbon: For the removal of unpleasant tastes and odors, dechlorination, and organic contaminant adsorption. these filters are recommended. Depending upon the exact application, there are a variety of carbon types from which to choose.

Uni-Tech Water Filter Systems

Item #

Model Diameter

Surface Area

Input & Outlet Service Pipe Size Type A

Input & Outlet Service Pipe Size Type B

Capacity @ 3 gpm/ft²

Capacity @ 5 gpm/ft²

List Price