Cyclone valves are designed to be installed in the vacuum/pressure line between the pump and the tank.

Cyclone valves prevent external liquid or solid parts that could bypass the primary valves from entering the pump.

The cyclone consists of a vertical cylinder with a conical bottom. The flow enters the separator body tangentially through the inlet; the mixture of solids and liquids begins to spin, and the denser materials are separated from the fluid due to this descending flow, as a result of centrifugal force, and can be collected in the lower compartment. As the mixture descends along the cone, a "vortex effect" is created at the center. This process generates a vortex in the center of the cone through which the lighter flow rises.