Vacuum Pumps Installing a Variable Acceleration Drive (VSD), sometimes called a adjustable frequency drive, usually saves between 50 and 65% in electrical power costs with the same or better regulation of vacuum. The number of energy savings could be from 30 to 80 percent. They can be adapted to blower or in some instances rotary vane type vacuum pumps. They work by changing the velocity of the vacuum pump predicated on the reading from a pressure sensor that’s mounted on the vacuum series close to the receiver jar. The VSD is actually a dedicated computer with many adjustments therefore it could be possible to boost vacuum regulation over the normal pneumatic vacuum regulator that only has a vacuum level adjustment. A VSD for a vacuum pump is usually economical for a dairy that milks a total of 8 hours or even more per day. Typically a VSD will never be an economical option for little dairies because of less Energy-Conserving Vacuum Pump china milking period and therefore shorter vacuum pump operate times but there are some other options to save energy costs.