Change Over Valve
Change Over Valves with the sizes DN 20 to DN 300 for all industrial facilities that require 100 % plant availability – even during maintenance and testing of safety valves.
Elite Change Over Valves Assemblies increase process performance and plant availability by providing the opportunity to switch from one safety valve to another without process interruption or shutdown, whenever maintenance of the safety valve in operation is needed.
Our Change Over Valves are designed and selected for best flow efficiency with superior zeta-value in order to fulfill the maximum inlet pressure loss requirements of 3% according to AD 2000 and API 520.
heir high efficiency design often allows smaller nominal diameters, which saves pipe network operation costs.
Change Over Valves can be used in two ways:
As stand alone valve at the inlet inside of two safety valves, in case of blow-down to atmosphere.
As interlockable Change Over Valve combination on the inlet and outlet side of two safety valves in case of blow-down to discharge piping.
Change Over Valves are used for steam, gases or liquids in these applications: chemical and petrochemical industries, process industries and plant construction.