Clack Systems
80-450 GPM

Many water supplies, municipal and groundwater, contain iron, rust, suspended particles, dissolved minerals, sediment as well as unpleasant odors. Industries large and small rely on water for processes such as cooling, heating, cleaning or rinsing as well as consumption. Sediment, iron deposits, and other filterable contaminates can adversely affect the operation of boilers, heat exchangers and cooling towers reducing the heat transfer capabilities of a system as well as increasing the cost of operating the system. Nelsen Filtration Systems are designed to reduce or eliminate unwanted contaminants and to increase process efficiency, saving money now and in the years ahead. Nelsen Filtration Systems with Clack Controls are designed for commercial and industrial applications requiring treated water for turbidity removal, iron removal, or taste and odor control, at flow rates up to 250 gpm. With a wide variety of filter medias available, Nelsen can manufacture the water filtration system needed, in single or a variety of multiple tank systems.

Features & Benefits

  • Clack Controls

    Clack 2" and 3" valves are made of high quality, lead free brass for a long reliable life. Hydraulically balanced pistons glide effortlessly along noncorrosive spacers and seals to precise positions.

  • Distribution System

    ​​Plastomer Diffusers or Hub & Lateral systems offer highly efficient distribution and collection of water and regenerants in water processing equipment.

  • Regeneration Controller

    Features the Clack solid state microprocessor controller, combining simplicity with flexibility that is easy to setup for single and multiple tank applications.

  • Filtration Media

    A variety of filter medias for sediment reduction (ie. split stream filters for cooling towers), chlorine and chloramine reduction for RO or DI pre-treatment, iron and manganese removal, hydrogen sulfide and other odor reduction, community water supply turbidity reduction, and more are available.

  • Fully Adjustable 5-Cycle Control Delivers Controlled Upflow Backwash, Downflow Brining, Slow Rinse, Rapid Rinse and Downflow Service
  • Incorporates Time-Tested Hydraulically Balanced Pistons to Independently Pilot Service Flow and Regeneration
  • Networks of up to 6 valves (WS2QC) or 4 valves (WS2H & WS3)
  • Easy installation w/plug-in wiring harnesses
  • Removable drop down programming POD on WS2H and WS3
  • Very accurate stainless steel 2" and 3" Clack flow meters
  • Programmable auxiliary relay - fused
  • Remote start, and Remote Lockout
  • Variable reserve
  • Available with programmable Day Timer or Meter to Control Regeneration
  • Designed for Single Tank or Multi-tank Systems, Alternating or Interlocking
  • Lead-free Brass Valve Body For Superior Strength and Durability
  • MAVs-motor actuated valves for multi-tank, alternating and no HW bypass options
  • Protective Enclosure is Water Resistant, Rain Tight, Corrosion Resistant and UV Stable
  • Simple on-site programming, field configurable for any system type using a simple programming sequence. Defaults for all valves, pistons and cams types are stored

Additional Resources

Optional Equipment
  • ProPress

    Viega ProPress is the original copper press joining solution. A proven pipe joining method used around the world, Viega ProPress technology increases the benefits to installers and specifying engineers. ProPress offers a proven method to verify secure connections and offer a time-saving press technology in multiple materials.

  • Gauge and Test Cock

    Gauge and Test Cock

  • Interconnecting Piping

    Interconnecting Piping/Headers - Interconnecting piping and headers for multi-tank systems are available in your choice of pipe materials: Sch80PVC; copper pro-press; and galvanized. Headers are available up to 4” with system total flow rates of 240gpm to 480 gpm, assuming 35-100 psi operating pressure and acceptable velocities of 6-12 ft/second.

  • Skid Mounting

    SKID MOUNTING - Nelsen Commercial Skids are pre-engineered and assembled, offering you a low cost of installation with start-up quick and easy. Skids have an epoxy primer with an enamel finish coat in safety blue. Systems are Skid Mounted with inter-connecting piping and headers with tank isolating valves and bypass available for filters or softeners.

  • ASME Logo

    Fiberglass or steel can be specified when required, and can be spec'd to meet your specific application requirements.

FILTER MEDIA FLOW RATES


TANK SIZE16 x 6518 x 6521 x 6224 x 7230 x 7236 x 7242 x 72
Min/Max/BKWMin/Max/BKWMin/Max/BKWMin/Max/BKWMin/Max/BKWMin/Max/BKWMin/Max/BKW
Greensand Plus2.8 / 16.7 / 153.5 / 21 / 204.8 / 29 / 306.3 / 37.7 / 359.2 / 55 / 5514 / 84 / 8519 / 115 / 115
Birm3.7 / 5.4 / 124.7 / 7 / 156.2 / 8.9 / 2011 / 15.7 / 3517 / 24.6 / 5024.7 / 35.4 / 7033.7 / 48.1 / 105
Carbon5 / 10 / 107 / 14 / 159 / 18 / 2015 / 30 / 3025 / 50 / 5035 / 70 / 7048 / 96 / 95
Calcite/Corosex3.2 / 6.4 / 124.1 / 8.3 / 155.3 / 10.6 / 209.4 / 18.8 / 3514.7 / 29.5 / 5021.2 / 42.4 / 7028.9 / 57.7 / 105
Multi-Media9 / 19 / 1211 / 25 / 1514 / 32 / 2025 / 56 / 3539 / 88 / 5556 / 127 / 8577 / 173 / 115
Filter Ag5 / 10 / 107 / 14 / 159 / 18 / 2015 / 30 / 3025 / 50 / 5035 / 70 / 7048 / 96 / 95
Filter Sand9 / 19 / 1211 / 25 / 1514 / 32 / 2025 / 56 / 3539 / 88 / 5556 / 127 / 8577 / 173 / 115
Chemsorb13 / 21 / 1317 / 28 / 2022 / 33 / 2538 / 62 / 4060 / 75 / 5080 / 125 / 85115 / 173 / 115
MTM5 / 10 / 107 / 14 / 159 / 18 / 2015 / 30 / 3025 / 50 / 5035 / 70 / 7048 / 96 / 95
KDF7 / 14 / 309 / 18 / 3512 / 24 / 5015 / 45 / 9025 / 75 / 15035 / 105 / 210X / X / X
Pyrolox5 / 9.5 / 307 / 12.5 / 408.5 / 15.5 / 5015 / 25 / 8525 / 40 / 14035 / 57 / 200X / X / X

Media flow rates are in Gallons per Minute. All tank sizes are in inches. When sizing units, use minimum capacity. Additional specifications available in Brochure Download above.

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