Danfoss B Series Hydraulic Pumps 49901-13
B Series pumps have a maximum operating speed of 2000-3500 rpm, depending on pump displacement and pressure. This is based on operation at sea level using SAE oil with a viscosity of 175 SUS (36 cSt) at 120°F (48,8° C). Actual limits for each displacement can be found in the pump performance curves. Minimum speed for the B Series is 500 rpm. This is the normal minimum speed at which the pump will operate continuously at rated pressure.