Water Driven Chemical Injectors from Dema Engineering. No electricity is required. Water flow drives the piston which pulls chemical into the unit. Injection rate stays the same even if flow rate varies. Chemical resistant construction allows for use with a wide variety of chemicals and solutions. Flows to 11 gpm and inlet pressures to 85 PSI. Temperatures to 122 Deg. F. Bodies are polypropylene / fiberglass, seals are Buna or Viton®, springs and levers are stainless steel. (200 Mesh Strainer recommended for protection of valve chamber). Units are available with or without control valves that allow for the shutoff of chemical draw while water is still flowing through the unit. All units are standard with 7' inlet tubing with foot valve. Ports are 3/4" MPT. Dimensions are 19-1/2" high x 7" wide. Units weigh 2-1/2 lbs.

BY-PASS (Models 576, 577, 578, 579). For corrosive and aggressive fluids that may damage internal pump parts. These models allow chemical to bypass main pump engine and are injected into the pump discharge line.