ChangeOver System (COSE)


For dependable, efficient gas and fluid management, Parker's ChangeOver System (COSE) is the solution. The compact, turnkey module maintains continuous gas delivery from multiple sources, eliminating costly downtime. Specialty gas costs are also reduced by maximizing gas consumption.


• Depleted gas cylinders can be changed out without disrupting gas flow
• Remote monitoring of cylinder banks using optional pressure switches reduces need for visual inspection by the operator
• Fully enclosed to protect internal components
• Removable side panels for field maintenance

> Learn more about the Parker ChangeOver System (COSE)
> Download the bulletin on the Parker ChangeOver System

Additional Flow Control Products:

Changeover Systems
• Veriflo COSE Changeover System – Continuous Gas Delivery

Instrumentation Cylinder Connections (Stainless Steel Compressed Gas Fittings)
• Veriflo CGA Connections
• Veriflo DISS Connections (Ultra High Integrity)


• Continuous on-stream analyzers
• Continuous feed of bottle gases for CEMS
• Back-up system for compressors, generators, and other plant air sources

Parker Hannifin Corporation
6035 Parkland Blvd.
Cleveland, OH 44124
Tel: +1 216 896 3000