CHLORITROL™ Valveless Chlorine Injection Pump System

Chloritrol Valveless Chlorine Injection Pump System

C100A Variable Speed DC Controller

The Chloritrol™ is a valveless metering system for accurate, maintenance-free injection of sodium or calcium hypochlorite for purification of municipal drinking water.  Available in 2 model formats, namely the CL1 (max 25 ltrs/hr) & CL2 (max 57 ltrs/hr).

Accurately metering liquid hypochlorite presents a unique challenge because of the fluid’s tendency to out-gas. Many conditions including elevated temperatures, exposure to UV radiation, and cavitation, in addition to, contact with metallic and organic impurities, tend to increase sodium hypochlorite out-gassing.

The resulting gas bubbles present a condition known as “gas lock” which adversely affects the efficiency and accuracy of the injection pump’s output. This, in turn, can significantly reduce the amount of chlorine added, and in the worst case, cause the pump to completely lose prime.

The Chloritrol™ System is a unique valveless duplex pump design. The first pump head is high pressure and injects the sodium hypochlorite directly into the water main. The second pump head functions to remove out-gas bubbles from the inlet side of the high-pressure pump head.

Each pump head features Fluid Metering’s patented CeramPump® pumping principle, which uses one moving part, a rotating and reciprocating ceramic piston which accomplishes both the pumping and the valving functions. Eliminating valves, typically present in other metering technologies, virtually eliminates costly downtime for repair and maintenance.

Flow rate is controlled by FMI’s Model C100A Variable Flow Controller, which accepts 4-20 mA signals from process sensors and instrumentation. Flow rate can be manually controlled as well using convenient from panel membrane switches and LED readout.

The Chloritrol™ has been field tested in very demanding applications, and demonstrated that it exceeds performance expectations. It is also noted that the size of the system, as well as energy consumption, is a fraction of that of conventional injection pumps.

In addition to sanitizing of drinking water, the Chloritrol is an excellent choice for accurate hypochlorite addition for municipal swimming pools, water parks, resorts, food processing plants, and waste treatment applications.


  • No valves to service.
  • No loss of prime from out-gassing.
  • Ability to prime against line pressure.
  • Months of “no touch” service = fast payback.
  • Automatic Rate Control System C100A
  • CL1 Flow rates 0 - 25 Ltrs/Hr @ max pressure of 125 psi
  • CL2 Flow rates 0 - 57 Ltrs/Hr @ max pressure of 125 psi

C100A Variable Speed DC Controller

  • 0-90 VDC (I.R. Compensated, Current limiting)
  • Selectable manual or electronic 4-20mA input speed control
  • Maintains & resumes output settings following power interruptions
  • Gasketed NEMA 4/12 enclosure
  • Input Power 120 VAC
  • 5.53" W x 7.25" H x 3.5" D

C100A Typical Installation


Related Links:

Click here to download full information on the Chloritrol System