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MH Series (96-360 gph) Diaphragm Metering Pumps

Quick Specs

MH Series Diaphragm Metering Pump
MH Series Diaphragm Metering Pump
  • Accuracy: Metering accuracy of +/-1%. Won’t fluctuate over time.
     
  • Flow: 5 models ranging from 96-360 gallons per hour
     
  • Pressure: 50-150 psi options
     
  • We use standard motors! 56C Frame - 3/4, 1, or 1.5 HP - 60 Hz
Options: Inverter Duty, Washdown Duty, Explosion Proof, 50 Hz, 3 Phase, Mill & Chem Duty
  • Simplex and Duplex 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 such as acids, caustics and water treatment chemicals. Heavy duty industrial grade construction means these tough pumps will deliver many years of trouble free 24-7-365 pumping. Simplex capacity up to 180 GPH, and duplex capacity up to 360 GPH

Features

  • MH 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 MH 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.
     
  • Standard motors are industrial grade 3/4 to 1-1/2 HP 56 frame foot mounted 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 stroke with 4.5" diameter piston increases diaphragm life by reducing fatigue.
     
  • Internal components the same as MF Series pumps.

MH 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
MH196D 9.6-96 36-363 150/10.6 3/4" NPT 3/4/.56 115 spm
MH1125E 12-125 47-473 150/10.6 3/4" NPT 1/.75 172 spm
MH1150F 15-150 57-568 150/10.6 3/4" NPT 1.5/1.12 172 spm
MH1180E 18-180 68-681 50/3.5 3/4" NPT 1/.75 172 spm
MH1180F 18-180 68-681 100/7 3/4" NPT 1.5/1.12 172 spm

MH 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
MH296D 19.2-192 72-726 150/10.6 3/4" NPT 3/4/.56 115 spm
MH2125E 25-250 94-946 150/10.6 3/4" NPT 1/.75 172 spm
MH2150F 30-300 113-1,136 150/10.6 3/4" NPT 1.5/1.12 172 spm
MH2180E 36-360 136-1,362 50/3.5 3/4" NPT 1/.75 172 spm
MH2180F 36-360 136-1,362 100/7 3/4" NPT 1.5/1.12 172 sp

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 Teflon
Teflon TFE/Neo Hypalon Carpenter 20 316 SS
316 SS Hypalon Viton Hastelloy C Ceramic
  Viton   Teflon  
  TFE/Vitron   Viton  

MH 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 MH Series Diaphragm Metering Pumps, click here to contact us.

 
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Celebrating 65 years of business

Madden Manufacturing has been designing and producing industrial steam equipment and diaphragm metering pumps for over 65 years now. We take great pride in the fact that our simple, rugged designs have been around since 1952 with only a few changes since.

With our smaller, family owned company, you can always expect responsive customer service and receiving some of the most durable products on the market. Thank you to all our distributors, reps and end users for helping us thrive for the past 65 years. 

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