ADDITIONAL INFORMATION:
Model 4475 Series Pump
The Model 4475 pump is a reciprocating-piston, low-pressure single action pump. Air powers the pump’s 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 No |
Description |
Material Outlet |
Operation |
Pump Tube Length |
Attachment |
Effective Pump Ratio |
Inlet Air Pressure |
Output/ Stroke |
Free Delivery |
4475 |
Bare Pump |
1/2" NPTF |
Pneum. pressure delivery stroke, spring return stroke |
34" (86 cm) |
2" Bung, adj. for 55- & 16-gal. drums, bench & portable tank |
Approx. 0.7:1 to 0.8:1 depending on inlet air pressure |
Max: 120 psi (8.3 bar) Min: 20 psig (1.4 bar) |
2.9 in³ (48 cm³) |
Up to 4 gpm * 4480 (15 lpm) |