PumpMaster 45 40:1

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High Flow double acting pumps with high pressure delivery for use in lubrication systems that require a combination of high flow and pressure delivery. Pumps can be used with grease up to NLGI-2 viscosity.

Part No.:

531 421-120 lb keg pump
531 411-400 lb drum pump
531 431-Bulk Tote

Markets Served:

Marine, Fleet service, In-Plant, Mining equipment maintenance, Heavy Duty Service Shops, Mass Transit Maintenance, Railroad


Pump Pressure Ratio 40:1
Continuous Duty Flow Rate 7.5 lb/min (3.5 kg/min)
Maximum Free Flow Rat 22 lb/min (11 kg/min)
Air Pressure Operating Range 20-200 psi (1.5-14 bar)
Maximum Outlet Pressure 8,000 psi (560 bar)
Air Motor Effective Diameter 4 1/2″ (115 mm)
Air Motor Stroke 4″ (100 mm)
Air Consumption 26.5 scfm (750 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 120 lb keg, 400 lb drum, Bulk tote
Simultaneous Dispense Points 4+
Max. Line Length 400′ (125 m)
Pump Description Heavy Duty High Flow


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