Madden Manufacturing Inc

- Model JN Series - Diaphragm Metering Pumps

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These simple, rugged, accurate pumps are used in many industrial paints for injecting a controlled flow of highly reactive liquids. Heavy duty industrial grade construction means those little pumps will deliver many years of trouble free 24-7-365 pumping.

  • JN Series Pumps are designed for especially low rates. Double ball checks with Teflon valve seats assure ±1% steady slate repeatable accuracy over a 10:1 turndown range.
  • Manual output control knob is located on top of the pump for easy access.
  • Automatic pump output control is available for pumps equipped with a variable speed motor.
  • Industrial grade worm gear reducer is permanently lubricated and C face mounted to the motor. Precision internal pump parts run in an oil bath for extended service life. No external lubrication required.
  • Double diaphragm option is available for superior protection from dangerous liquids.
  • When equipped with the proper materials the JR Series pumps are excellent for pumping dangerous liquids such as acids, caustics and solvents.
  • Standard motors are rugged 1/3 HP 56 frame industrial grade TEFC. Motors are available for explosion proof, washdown, and mill & chem plant duty, and for 1 or 3 phase, 50 or 60 Hz power.
  • Tough fabric reinforced rubber diaphragms protect the drive train from the pumped liquid. The short .090' stroke with 2' diameter piston increased diaphragm life by reducing fatigue.
  • The JN Series replaces J Series and JR Series pumps.

  • Accuracy: Metering accuracy of +/-1%. Won’t fluctuate over time.
  • Flow: 6 models ranging from 1-11 gallons per hour
  • Pressure: up to 250 psi
  • We use standard motors! 56C Frame – 1/3 HP - 60 Hz
  • Options: Inverter Duty, Washdown Duty, Explosion Proof, 50 Hz, 3 Phase, Mill & Chem Duty
  • Simplex, Duplex, and Triplex options (number of pumping heads)

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