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
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