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(*VIDEO) How to replace the MP048 flexible shaft in a Madden MF or MH series diaphragm metering pump

by Madden Manufacturing • June 17, 2016

This article and video will walk you through the step by step process of replacing the flexible shaft in a Madden MF series diaphragm metering pump. The process is the exact same for the MH series pumps.

Replacing a flexible shaft is a quick and simple process, as are all repairs on a Madden pump. Madden Manufacturing’s diaphragm metering pumps are not “throw away” pumps. They are industrial duty metering pumps intended for many years of service, with only occasional minor repairs ever needed. And because of that, we made sure our pumps could be easily repaired with common, everyday tools. We have built our metering pumps with quality, durability, and simplicity in mind for 60+ years and we are excited to continue doing so for years to come.

Watch the video to learn how replacing a worn out MP048 Flexible Shaft can be done in as little as 3 minutes.



If you have a Madden diaphragm metering pump and need replacement parts contact your local rep or reach out to the factory today. Also, if you are interested in a Madden MF series or MH series diaphragm metering pump you can email or call (574) 295-4292 to get started.

Faster Lead Times than Neptune & Milton Roy

Madden Manufacturing is currently quoting lead times of:
  • Chemical Metering Pumps @ 1-2 weeks
  • Fully Assembled Chemical Feed Systems @ 3-6 weeks
  • Sample Coolers & Small Heat Exchangers @ < 1 week
  • Emergency/Rush pumps in 1-2 days!


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