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Oswald

Municipal

MD3

Introduction to the MD3 Pump

Description 

The MD3S Chem-Feed Multi-Diaphragm Pump is a positive displacement chemical metering pump that delivers smooth, continuous chemical feed even when injecting chemicals that off-gas like Peracetic Acid and Sodium Hypochlorite.   

The cutting-edge Hyperdrive Technology allows for alternating pumping action between two diaphragms: when one diaphragm is in the suction phase, the other is in the discharge, resulting in a smooth chemical feed profile and minimizing the risk of vapor lock.  

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The MD3S uses either DiaFlex® or Flex-A-Prene® diaphragms.  DiaFlex® diaphragms are guaranteed to last the life of the pump. 

Product Overview / Features of the MD3S Peristaltic Pump 

  • The MD3S pump can deliver up to 52.6 GPH (199 LPH) at 100% motor speed.  
  • Up to 145 psi. (See pump curve for exact pressure requirements at specific flow rates) 
  • Brushless DC Motor capable of 2,000:1 turndown.   
  • NSF 61 Listed. 
  • 5” Display and Touchscreen Interface. 
  • Manual Speed Control. 
  • Remote Start/Stop. 
  • Secondary Start/Stop for Auto-Prime, Pressure Switch (or other on/off contact closure) 
  • 4-20mA input and 4-20mA output. Fully scalable at the pump.  
  • Pulse and Frequency input speed control. 
  • Four Alarm Outputs. (programmable)  
  • Advanced Communication Protocols: Ethernet IP, Modbus TCP/IP, Profibus.  
  • Integral DFD (Diaphragm Failure Detection) leak detection.  
  • FVS (Flow Verification System) input.  
  • Manual Prime and Auto Prime. 
  • Wetted parts are PVDF connectors/manifold and pump head, DiaFlex® or Flex-A-Prene® diaphragms, Alfas or EP O-rings/Seats, and ceramic ball checks (optional Teflon ball checks.)  
  • Simple IP67 M12 connectors for communication wiring. 
  • 5 Year Limited Warranty. 

Applications 

The MD3S pump is designed to provide smooth chemical feed for a variety of chemicals and processes.  It can reliably pump chemicals that off-gas such as sodium hypochlorite, peroxide, ammonia, and PAA (peracetic acid), as well as a variety of other chemicals.  

The smooth flow profile and full diaphragm stroke allow the MD3S to effectively pass gasses without vapor-locking, minimizing the need for re-priming.   

The MD3S pump is constructed of chemical-resistant materials, making it an excellent choice for aggressive acids and mixed or proprietary chemicals. 

Product Matrix  

Use this matrix to reference your product number.   

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FAQs

Frequently Asked Questions

MD3S Introduction

  • What are best application for this pump?

    The MD3 delivers smooth, continuous chemical feed even when injecting chemicals that off-gas like Peracetic Acid and Sodium Hypochlorite. When high feed rates and high pressure conditions are required the MD3 is a good choice.

  • What is hyper drive technology?

    The cutting-edge Hyperdrive Technology allows for alternating pumping action between two diaphragms: when one diaphragm is in the suction phase, the other is in the discharge, resulting in a smooth chemical feed profile and minimizing the chance of vapor lock and loss of prime.

Please click here to see help center disclaimers.

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