| Pump Pressure Ratio | 3:1 |
| Continuous Duty Flow Rate | 12 gpm (45 l/min) |
| Maximum Free Flow Rate | 32 gpm (120 l/min) |
| Air Pressure Operating Range | 20–170 psi (1.5–12 bar) |
| Maximum Outlet Pressure | 510 psi (36 bar) |
| Air Motor Effective Diameter | 4.5″ (115 mm) |
| Air Motor Stroke | 4″ (100 mm) |
| Air Consumption | 28 scfm (800 NL/min) |
| Air Inlet | 1/2″ NPTF |
| Fluid Inlet | 1½” NPTF |
| Fluid Outlet | 3/4″ NPTF |
| Wetted Materials | Cast Iron, Nickel, Aluminium, Steel, NBR, Polyurethane |
| Noise Level | 80 dB |
| Application | Stub pump |
| Simultaneous Dispense Points | 3–4 |
| Max. Line Length | 250′ (75 m) |
| Pump Description | Heavy Duty Volume Transfer |
PumpMaster 45 3:1
Double acting air operated medium pressure and high delivery pump for large volume transfer applications. Built in port for optional (PN 609 007) pressure relief valve. Flange Mounted Pump
Part No:
536 331 PumpMaster 45- 3:1 Stub Pump – flange mounted
Fluids Handled:
Synthetic and mineral-based oil
Transmission fluid
Hydraulic oil
Gear lube
Markets Served:
Mining equipment maintenance, Mass Transit Maintenance, Railroad, Marine, In-Plant, Large Fleets





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