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3 in. Diaphragm Pumps

Double diaphragm pumps are operated by compressed air or any non-flammable compressed gas. The pumping stroke begins as air is delivered by the air distribution system, putting pressure on one diaphragm and then the opposite diaphragm. The two diaphragms are linked together by a common rod. The pumping stroke on one side is simultaneously the suction stroke on the opposing diaphragm alternately drawing fluid in one side while discharging fluid from the other side

All The Air Diaphragm Pumps in this series are 3 inch and have a bolted design.

Click here to Learn How to Size your Diaphragm Pump and for a Material Selection Guide

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  1. 3" 2 items
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  1. All-Flo 2 items
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  1. Air-Pneumatic 2 items
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  1. All-Flo

    Air Operated Double Diaphragm Pump

    A300-NAA-TTYT-B30

    $4,230.00
    Aluminum AODD Pump 3". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS from .2...
    Aluminum Teflon 3" Learn More
  2. All-Flo

    Diaphragm Pump Air

    A300-NAA-VVYV-B30

    $6,071.00
    Diaphragm Pump Air. Aluminum AODD Pump 3". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Diaphragm Pump Air Models available in PP, PVDF, Nylon,...
    Aluminum Viton 3" Learn More
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