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Calleffi hydronic separator

Snowmelt Member Posts: 1,416
Can someone give me a picture of a hydronic separator using a cast iron boiler.


  • hot_rod
    hot_rod Member Posts: 22,261
    Really no piping difference regardless of what boiler type you pipe to a hydraulic separator. The sep doesn't know or care what you connect to it? The sep is just a large fitting, some have additional stuff inside to speed air and dirt removal.

    Here is a cast boiler connected to one of the Caleffi HydroLinks. It's a LLH with additional ports for adding mix valves or assemblies. A 3 way valve provides return protection.

    Idronics 15 has about 10 or more sep piping schematics and P/S piping concepts, they all accomplish the same thing.

    Buy the sep as a component or build up a bunch of tees and build the same function.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream