PUMPS generally mean energy machines or devices in which energy is exchanged between the working fluid flowing through the machine and its moving parts, increasing the mechanical energy of the fluid flow from the inlet to the outlet of the pump.

The pumps are driven in various ways, and are dominated by electric motor or internal combustion engine drive, which are connected to the pump via couplings / couplings.

Centrifugal pumps are by far the most commonly used types of pumps. Of all the pumps installed in a typical oil refinery, almost 80-90% are centrifugal pumps.

A centrifugal pump is a mechanical device designed to move fluid by transferring rotational energy from one or more driven rotors, called impellers. The fluid enters the rapidly rotating impeller along its axis and is expelled by centrifugal force along its circumference through the tips of the rotor blades. The action of the impeller increases the speed and pressure of the fluid and also directs it towards the pump outlet. The pump housing is specially designed to narrow the fluid from the pump inlet, direct it to the impeller and then slow down and control the fluid before draining.

The most common way to prevent media from leaking out of the pump body is to seal the rotating parts with mechanical seals.