A Monoblock Pump is a mechanical device in which a common shaft contains the rotating parts. Owing to this, during the transmission from motor to shaft, there is less loss of energy. Since there are 7% losses in belt driven sets and 3% losses in coupling driven sets hence to avoid these transmission losses Mono block pump sets evolved. Mono means single, as its name suggests Monoblock Horizontal Multistage Pump is a non-self-priming centrifugal pump.