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

Uses

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

Models

PIPE SIZE NPT
NOMINAL ON/OFF
SHAFT LENGTH
PADDLE NUMBER
 
SWITCH POINT RANGE Model
(GPM)  
1″
5.0 – 3.0 10512 CF-8N/-/10512
9.6 – 7.5 1 2 CF-8N/1/2
15.4 – 18.0 1 1 CF-8N/1/1
1 1/2”
12.0 – 9.5 10502 CF-8N/-/10502
14.2 – 11.8 2 3 CF-8N/2/3
19.0 – 13.5 10570A CF-8N/-/10570A
22.5 – 19.0 2 2 CF-8N/2/2
34.4 – 30.4 2 1 CF-8N/2/1
2″
14.4 – 10.2 10593 CF-8N/-/10593
16.5 – 11.0 10566 CF-8N/-/10566
25.8 – 21.8 2 3 CF-8N/2/3
39.8 – 33.6 2 2 CF-8N/2/2
58.0 – 50.8 2 1 CF-8N/2/1
3″
42.4 – 37.0 3 3 CF-8N/3/3
55.6 – 49.8 3 2 CF-8N/3/2
80.6 – 65.2 3 1 CF-8N/3/1
* /1G = Two Recepticals: one always on & one switched
* /2G = Four Recepticals: two always on & two switched (shown)
* Tee not included

CF8
Group

CF-8-1G

CF-8-2G

CF-8CR-1G

CF-8CR-2G

Specs

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

Diagram

diagram_cf-8