Catalog > Lincoln > Transfer Pumps > Series Bare Pump

Lincoln 4475

Series Bare Pump
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Model # Description Price
4475 Pump Assembly $319.39

Series Bare Pump


  • The Model 4475 pump is a reciprocating-piston, low-pressure single action pump.
  • Air powers the pumps piston on the dispensing, or working, stroke.
  • An internal spring returns the piston and resets it for the working stroke.
  • It pumps continuously when the dispensing (fluid outlet) valve is open and 20-120 psig air is supplied to the pump


    Model: 4475
    Description: Bare Pump
    Material Outlet: 1/2 NPTF
    Operation: Pneum, pressure delivery stroke, spring return stroke
    Pump Tube Length: 34" (86 cm.)
    Attachment: 2" Bung, adj. for 55- & 16-gal. drums, bench & portable tank
    Eff Pump Ratio: Approx. 0.7:1 to 0.8:1 depending on inlet air pressure
    Max Air Inlet Press: 120 psig / 8.3 bar
    Min Air Inlet Press: 20 psig / 1.4 bar
    Output Per Stroke: 2.9 in³ (48 cm³)
    Free Delivery: 4 GPM

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