C-1700N Chem-Feed Duplex Diaphragm Metering
Pump From Blue White Industries

Fixed Speed, Duplex Diaphragm Pump

  • Economical and versatile.

  • Dual pump head design for simultaneous injection of two chemicals, or high volume of one.

  • All ball bearing, permanently lubricated gear motor for smooth, quiet, powerful operation.

  • Stroke adjustment from 5-100% permits accurate small injections at a high rate per minute.

  • Outputs to 48 LPH (304. 2 GPD). (Total both heads)

  • Output pressures to 125 PSI.


  • Water treatment and conditioning.

  • Soap, wax and detergent injection.

  • Wastewater treatment.

  • Biocide feed.

  • Rural water systems.

  • Cooling tower & boiler treatment.

  • Fertilizer and nutrient injection.

  • Pool chlorination & PH control.

Output Control Options:

Standard Models feature a quick adjusting, high accuracy mechanical stroke length control. The pump’s efficient design allows for a minimum stroke length of 5%. Minimum recommended output is 5% of maximum. Each pump head is independently controlled.

Deluxe Models feature stroke length and electronic time Interval control. The pump’s on time is adjustable from 5-100% of the repeating 5 second time interval. (0.25 – 5.0 sec.) The high frequency of the repeating 5 second time interval, and the extremely accurate mechanical stroke adjustment, result in a higher frequency of small injections per minute. Minimum recommended output is .5% of maximum. Each pump head is independently controlled.



  • Outdoor rated enclosure .

  • Durable housing of chemical resistant Valox (PBT) thermoplastic.

Wetted Parts:

  • PTFE coated EP diaphragm .

  • Double-ball inlet and outlet cartridge type ceramic check valves. Chemical resistant PVDF valve body and fitting, ceramic balls, Viton static seals and TFE/P ball seat o-rings.

  • No metal springs are used.


  • All ball bearing, permanently lubricated gear motor for smooth, quiet, powerful operation.

Shipping Accessories

  • Includes visual flow indicator on the suction line tubing.

  • Includes 2 sets of 3/8″ OD suction and discharge tubing, 2 Injection fitting with spring-loaded check valve and all mounting hardware.

  • PVDF suction (foot) valve with FKM and TFE/P o-rings, ceramic check ball and removable polypropylene filter screen.

Max. Working pressure:

125 psig (8.6 bar)

Max. Fluid Temperature:

130ºF (54ºC)

Max. Ambient Temperature:

14 to 110ºF/ -10 to 43ºC

Maximum Viscosity:

1,000 Centipoise

Maximum Suction Lift:

10 ft. Water, 0 psig

Output Accuracy:

+/- 10% of max. (water 0 psi, 5' suction lift)

Turndown Ratio:

Standard 20:1

Deluxe 400:1 (Time interval controller)

Duty Cycle:



NEMA type 3R (IP23)

Operating Voltage:

115VAC/60Hz, 1ph (.74 Amp Maximum)
230VAC/60Hz, 1ph (0.36 Amp Maximum)
220VAC/50Hz, 1ph (.31 Amp Maximum)
24VAC/60Hz, 1ph (3.40 Amp Maximum)

Power Cord Plug Type:

115V60Hz = NEMA5/15 (USA)
230V60Hz = None (Junction box)
220V50Hz = CEE 7Nll (EUROPE)
24V50Hz =None (Junction box)

Approx. Shipping Weight:

8 lb. (3.6 Kg)

Tech. Data Sheet (PDF) (PN 85000-057)
Instruction Manual (PDF) (PN 81000-265)

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About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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