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MF Series (5-75 gph) Diaphragm Metering Pumps

Quick Specs

MF Series Diaphragm Metering Pump
MF Series Diaphragm Metering Pump
  • Accuracy: Metering accuracy of +/-1%. Won’t fluctuate over time.
     
  • Flow: 11 models ranging from 5-75 gallons per hour
     
  • Pressure: 35-300 psi options
     
  • We use standard motors! 56C Frame – 1/3, 1/2, or 3/4 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)

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

Features

  • MF Series pumps are designed for ±1% steady state 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 integral with the pumping mechanism. 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 MF Series pumps are excellent for pumping dangerous liquids such as acids, caustics and solvents. Liquids with suspended solids such as diatomaceous earth and lime slurry can be accurately pumped.
     
  • Tough fabric reinforced rubber diaphragms protect the drive train from the pumped liquid. The short stroke with 3" diameter piston increases diaphragm life by reducing fatigue.

MF Series Valve Assembly

The valve assembly on Madden's MF series diaphragm metering pump is the driving force for repeatability and accuracy. Check ball valves on the suction end and discharge end of the assembly allow for precise amounts of volume to pass through the solution head. Check out the PDF drawing below for details of construction.

MF series valve assembly drawing
MF Series Valve Assembly Drawing and Part Numbers

MF Series Pumps, Simplex (One Pumping Head)

 
Model No. Output Range GPH Output Range L/hr Max Pressure psi/bar Piping Connection Motor HP/kw Stroke Speed 1,725 rpm motor
MF105A 0.5-5 1.9-18.9 300/21.1 3/8" NPT 1/3/.25 29 spm
MF110A 1-10 3.8-37.8 150/10.6 3/8" NPT 1/3/.25 29 spm
MF110C 1-10 3.8-37.8 300/21.1 3/8" NPT 1/2/.37 29 spm
MF118A 1.8-18 6.8-68 150/10.6 3/8" NPT 1/3/.25 58 spm
MF118C 1.8-18 6.8-68 300/21.1 3/8" NPT 1/2/.37 58 spm
MF136A 3.6-36 13.6-136 150/10.6 3/8" NPT 1/3/.25 115 spm
MF136C 3.6-36 13.6-136 300/21.1 3/8" NPT 1/2/.37 115 spm
MF160A 6-60 22.7-227 80/5.6 3/8" NPT 1/3/.25 172 spm
MF160C 6-60 22.7-227 160/11.2 3/8" NPT 1/2/.37 172 spm
MF160D 6-60 22.7-227 250/17.6 3/8" NPT 3/4/.56 172 spm
MF190C 7.5-75 28-280 35/2.5 3/4" NPT 1/2/.37 172 spm

MF Series Pumps, Duplex (Two Pumping Head)

Model No. Output Range GPH Output Range L/hr Max Pressure psi/bar Piping Connection Motor HP/kw Stroke Speed 1,725 rpm motor
MF205A 0.5-5 1.9-18.9 300/21.1 3/8" NPT 1/3/.25 29 spm
MF210C 1-10 3.8-37.8 300/21.1 3/8" NPT 1/2/.37 29 spm
MF218C 1.8-18 6.8-68 300/21.1 3/8" NPT 1/2/.37 58 spm
MF236C 3.6-36 13.6-136 300/21.1 3/8" NPT 1/2/.37 115 spm
MF260C 6-60 22.7-27 160/11.2 3/8" NPT 1/2/.37 172 spm
MF260D 6-60 22.7-27 250/17.6 3/8" NPT 3/4/.56 172 spm
MF290C 7.5-75 28-280 35/2.5 3/4" NPT 1/2/.37 172 spm

Wetted end materials to resist corrosion and abrasion

Solution head and valve bodies Diaphragm Backup Diaphragm Valve Balls Valve Seats
PVC Neoprene Neoprene 316 SS Neoprene
Teflon TFE/Neo Hypalon Hastelloy C Hypalon
316 SS Hypalon Viton Teflon Viton
Polypropylene Viton     Teflon
  TFE/Vitron     316 SS
        Ceramic

MF Series Literature

Madden Metering Pump Selection Guide

For the cleanest and easiest way to inquire about a Madden metering pump, download this fillable pump selection guide, fill it out, and upload it through the RFQ section of our website. We take pride in responding promptly!
 
Metering Pump Selection Guide

To learn more about our MF Series diaphragm metering pumps, click here to contact us.

 
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