Johnson March Systems, Inc.

Chemical Feed Systems


Chemical Feed Systems generally consist of a steel base “skid” which a chemical storage tank and pumps are mounted too which then Feed or “Inject”, “Dose” chemicals into the process at a precise rate. There is an endless list of chemicals and applications these are used for such as phosphates for boiler water control, sodium hypochlorite for bio-fouling in a cooling tower, polymers for collecting and settling solids, etc.

These can be something as small and simple from a single metering pump with suction and discharge piping on a baseplate to a package of multiple large 20,000 gallon bulk storage tanks with ladders and platforms and multiple pumping skids injecting chemicals at rates from 1 to over 100 gallons an hour and controlled by a PLC.

Johnson March will fabricate the entirety of these packages under one roof with no need for subcontracting. We roll our own tanks, have the ASME Section VIII Stamp for fabricating pressure vessels and a large team of experience welders, pipe fitters and electrical technicians that surpasses our competition to make the highest quality of system. Typically Chemical Feed Systems use hydraulically actuated diaphragm metering pumps but we have vast experience in utilizing many different styles of pumps to fit the custom application of the systems such as metering pumps, centrifugal pumps, gear pumps, turbine pumps and more. Our systems are robust and long lasting, designed for use in the heavy industrial market. This means our standard systems will use steel for the skids, pumps, piping and tanks and if the chemical compatibilities require we’ll use FRP/CPVC piping and tanks for services such as sodium hypochlorite service.

  • Stainless Steel Fabricated Tanks
  • Carbon Steel Fabricated Tanks
  • Custom Fabricated Lined Tanks
  • Poly Tanks
  • Fiberglass Tanks
  • Tank Heat Tracing & Insulation
  • ASME Section VIII Code Stamp Tanks
  • Double Wall Tanks
  • Agitators
  • Welded Piping Systems
  • PVC and Fiberglass Piping Systems
  • Lined Piping Systems
  • Alloy Pipe Welded Piping Systems
  • Explosion Proof Systems
  •  Metering Pumps
  • Gear Pumps
  • Centrifugal Pumps
  • Pump Capacity Controls
  • Pump Variable Speed Drives
  • Welded Steel Channel Skids
  • Spill Containment
  • Prefabricated Buildings/Shelters
  • Sun Shades
  • Access Platforms & Ladders
  • Sandblasting & Custom Painting
  • Special Testing
  • Custom Control Panels
  • PLC Based Systems

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