Description
Resideo PCV150 Flowcheck PC3F43 is a control component used to prevent gravity circulation in a hydronic heating system. It is designed with a 1-1/2 inch connection size and operates by allowing water movement only when the circulator pump is active. It is installed in piping systems to stop reverse or uncontrolled flow during conditions, helping maintain proper directional circulation. It is applied in HVAC systems within hot water heating loops and boiler assemblies where controlled fluid movement is required for balanced heating distribution and stable system operation.









