Harwil - Model CF-8 -Chemical Feed Pump Controller
CF-8 Chemical Feed Pump Controller is a stand-alone controller that automatically actuates a chemical feed pump when primary bulk fluid (water) begins to flow. An example would be to start a chlorine injection pump when the water flow starts and turns the injection pump off when the flow stops. The CF-8 Chemical Feed Pump Controllers are also used to control irrigation chemical feeders and UV lights or Ozone generators on swimming pools
The CF-8 is available with 1 or 2 sets of receptacles. (1 Gang or 2 Gang) The 1 gang model has 1 switched receptacle and 1 always-on receptacle and the 2 gang has 2 receptacles of each. Model CF-8 is available for 120VAC, 50-60 Hz power for pipe sizes from 1 inch to 6 inch.
- Flow Range : 5 - 80 GPM (18–302 L/m)
- Working Temp : 180˚F (82˚C) Maximum
- Working Pressure : 100 psig @ 180˚F (466˚F kPa)
- Process Connection : 1" NPT
- Electrical Switch : SPDT (single pole double throw), 1/2 hp 13A or Dry Circuit
- Enclosure : NEMA 3R / IP 14
Monitoring fluid flow in:
- Air Conditioning Systems
- Industrial Refrigeration Systems
- Cooling in Data Centers
- Pools and Spas
- Chillers
- Scrubbers
- Fluid Blending Systems
- Water Treatment Systems
- Natural Gas
HYSTERESIS (Δ FLOW RATE TO ACTIVATE/DEACTIVATE SWITCH)
- ≈ 10% at upper end of flow range
- ≈ 30% at lower end of flow range
DIFFERENTIAL PRESSURE DROPS ACROSS UNIT
Under normal operating conditions:
- ≈ 1″–3″ pipe, less than 0.5 psi
- ≈ 4″–10″ pipe, negligible
WORKING LINE PRESSURE:
- 50 psi max., operating @ 180˚F 100 psi max. non-operating @ 180˚F Pressure over 50 psi can affect the switch point range
ELECTRICAL SWITCH CHARACTERISTICS
- SPDT (single pole double throw) 13A, ½ hp @ 125VAC ½A @ 125VDC (tungsten lamp load) 10,000,000 Operations Median