| Pump Pressure Ratio | 25:1 |
| Continuous Duty Flow Rate | 13.5 lb/min (6 kg/min) |
| Maximum Free Flow Rat | 35.32 lb/min (16 kg/min) |
| Air Pressure Operating Range | 20-200 psi (1.5-14 bar) |
| Maximum Outlet Pressure | 5,000 psi (350 bar) |
| Air Motor Effective Diameter | 4 1/2″ (115 mm) |
| Air Motor Stroke | 4″ (100 mm) |
| Air Consumption | 47 scfm (1.340 NL/min) |
| Air Inlet | 1/2″ NPTF |
| Fluid Outlet | 1/2″ NPTF |
| Wetted Materials | Cast Iron, Steel, Hard Chromed Steel, UHMWPR, NBR |
| Noise Level | 80 dB |
| Application | 400 Lb drum pump |
| Simultaneous Dispense Points | 1 – No Reels |
| Max. Line Length | 250′ (75 m) |
| Pump Description | Heavy Duty Pressure Transfer |
PumpMaster 45 25:1
Moderate pressure, high delivery double acting pumps for transfer of grease up to NLGI-2. Recommended for use with low viscosity grease in centralized grease systems that do not require a high pressure output and in large distribution systems of high viscosity oils.
Part No.:
531 211 – 400 lb drum pump
Markets Served:
Lube Trucks, In-Plant, Mining equipment maintenance





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