Liquid Ring Vacuum Pump Power Calculation Formula

You might get a doubt that how the formula for pump capacity is derived but there is nothing but just a unit conversion by incorporating the required end vacuum i e ultimate pressure.

Liquid ring vacuum pump power calculation formula.

Most liquid ring vacuum pumps are designed to operate from a vacuum suction to an atmospheric discharge pressure. Bkw 21 4 sf 0 924 rotary piston pump. By changing the discharge pressure the efficiency of the. Bkw 13 5 sf 1 088 where.

Capacities expressed in cfm or scfm standard cubic feet per minute can be very misleading because we have to take into consideration the volumetric efficiency of the pump at a specific vacuum. Water ring vacuum pumps are often used in the vacuum system of large paper machines which refer to water ring vacuum pumps. Liquid ring vacuum pumps are all rated in acfm the actual capacity at the different vacuum levels as shown on the individual pump performance curves. If the discharge pressure is increased then more energy or brake horsepower is required to operate at the increased compression range.

Some equations are presented below for the benefit of the readers. Today s blog entry deals with quick but reliable estimate of the power consumption of vacuum pumps used in the chemical process industry. Liquid ring nash pump. Water ring vacuum pump has less maintenance workload less power consumption than the former and large single machine capability but it needs working fluid and the system is relatively complex.