Switching Valves

Decrease unscheduled downtime and production losses with ValvTechnologies’ switching valves.

The ValvTechnologies’ switch valves are designed for use in the delayed coker found in many integrated oil refineries. There are two drums in a delayed coker unit that work consecutively while in operation. When one drum is functioning, the other drum is being de-coked. The switching valve is required to direct hot feed to either drum A or drum B. The valve also has the bypass position to divert flow back to the fractionator for or during emergencies. The bypass has the same port dimension as the main drum feed lines. The control package also has the capability of providing multiple intermediate positions to provide the capability to warm the new drum while slowly reducing feed to the live drum. The switch valve is the most critical valve in the unit.

This valve is found in delayed coker units where multi-port valves are required in high-temperature coking applications. These systems contain sticky residue, solids, and other system contaminants.

switch valve diagram