All your examples of hydraulic seperators have the primary and secondary loops currents running counter to one another in the common space (tight junction or yoru 548 series) this has the affect of reducing pressure head in both systems and there fore maximizing cross talk. In particular with a condensing tankless systems where flow in the primary (furnace) loop is important this reduction in flow is problematic. Should not the direction of flow be matched in the shared lumen area?
All your examples of hydraulic seperators have the primary and secondary loops currents running counter to one another in the common space (tight junction or yoru 548 series) this has the affect of reducing pressure head in both systems and there fore maximizing cross talk. In particular with a condensing tankless systems where flow in the primary (furnace) loop is important this reduction in flow is problematic. Should not the direction of flow be matched in the shared lumen area?