CHEM-FEED® C3

Superior Diaphragm Metering Technology, Leading Edge Features and Materials

Max Feed: .3 – 40 GPH (.1 – 154 LPH)

Max Pressure: 150 PSI (10.3 bar)


The CHEM-FEED® C3 Diaphragm Metering Pump delivers accurate chemical feed quietly and efficiently against high system pressures. With an easy-to-read LCD user interface and optional pulse/frequency/4-20 mA input capability, the CHEM-FEED® C3 pump has the power and flexibility you need to take control of your fluid management process.

The C3’s exclusive DiaFlex® Diaphragms will last the life of the pump, eliminating the need for expensive rebuild kits

  • Variable Speed Drive
  • Enclosure Rating: NEMA 4X (IP66)
  • Control Methods: Manual, Remote Analog/Digital
  • 4-20mA (C3V only), Pulse Input (C3V only) and Manual Speed Control
  • Leak Detection – Built-in Diaphragm Failure Detection (DFD)
  • Back Lit LCD display
  • Exclusive Diaflex® Single Layer PVDF diaphragm.

Benefits of a Diaphragm Pump:

  • DiaFlex® diaphragm design will last the life of the pump, eliminates the need for expensive rebuild kits – Patented
  • Diaphragm Failure Detection (DFD) built-in leak detection comes standard
  • Accurate chemical metering with pressures of up to 150 PSI

Communication and Interface:

  • Operator friendly digital controls with backlit LCD displays motor speed, input signal values, service, and alarm status
  • Signal inputs include: 4-20mA, pulse inputs and Remote start/stop
  • Signal outputs include: Relay (3 amp), open collector, 4-20mA
  • Compatible with Blue-White’s Flow Verification Sensor (FVS) system
  • Alarm relay monitors the DFD system and FVS system
  • SCADA ready 5-30V DC open collector output loop closes while motor is energized

Superior Design:

  • 2 Year Warranty
  • 100:1 turndown ratio
  • NEMA 4X (IP66) wash-down, chemically resistant powder coated enclosure
  • Large PVDF, Ceramic, double ball check valves without metal springs

Safety Features:

  • Diaphragm Failure Detection (DFD) senses diaphragm rupture by detecting chemical in the pump head. No false triggering – Patented
  • UV display cover protects controls from harsh environments

Superior Diaphragm Metering Technology, Leading Edge Features and Materials

Max Feed: .3 – 40 GPH (.1 – 154 LPH)

Max Pressure: 150 PSI (10.3 bar)


Max. working pressure:
150 psig (10.3 bar)
Max. fluid temperature:130° F (54° C)
Max. Ambient temperature:14 to 110° F (-10 to 46° C )
Maximum viscosity: 1,000 Centipoise
Maximum suction lift:
15 ft. Water, 0 psig (4.5 m, 0 bar)
Operating Voltage:230VAC/60Hz, 1ph (0.7 Amp Maximum)
220VAC/50Hz, 1ph (1.0 Amp Maximum)
240VAC/50Hz, 1ph (1.0 Amp Maximum)
Power Cord:240V50/60Hz = AS 3112 (Australia/New Zealand)
Duty cycle:Continuous
Motor speed adjustment resolution:1-100% in 0.1% increments
Display:Backlit LCD, UV resistant
Keypad:Positive action tactile switch keypad
Enclosure:NEMA 4X (IP66), Polyester powder coated aluminum
Product weight:10.9 Kg

What’s Included:

  • C3 Diaphragm Metering Pump
  • Discharge injection fitting with check valve
  • Option “A” – ½” Hose Barb Inlet, ½” M/NPT Outlet, with ½” M/NPT Injection Fitting
    • ½” M/NPT injector
    • ½” hose barb foot valve / strainer
    • ½” suction tubing
    • #5 clamp
  • Option “B” – ½” Hose Barb Inlet, ½” F/NPT Outlet, with ½” M/NPT Injection Fitting
    • ½” M/NPT injector
    • ½” hose barb foot valve / strainer
    • ½” suction tubing
    • #5 clamp
  • Option “C” – ½” Hose Barb Inlet and Outlet, with ½” ID Hose Barb Injection Fitting
    • ½” hose barb injector
    • ½” hose barb foot valve / strainer
    • ½” suction tubing
    • #5 clamp
  • Option “E” – ½” M/NPT Inlet and Outlet, with ½” M/NPT Injection Fitting
    • ½” M/NPT injector
    • ½” M/NPT foot valve / strainer
  • Option “F” – ½” F/NPT Inlet and Outlet, with ½” M/NPT Injection Fitting
    • ½” M/NPT injector
    • ½” M/NPT foot valve / strainer
  • Mounting hardware kit
  • Junction box connectors