Automatic heating filling valve, filling combination DN20 ¾" BA 6628 plus

The automatic heating filling valve is designed for automatic filling of closed heating systems. It includes a pressure reducer, pressure gauge, and BA system separator.

This filling valve is used for the automatic filling and refilling of hot water central heating systems in accordance with DIN EN 12828. According to DIN EN1717, it is permanently connected to the drinking water pipe.

If the supply pressure drops below the heating system pressure during the filling process, the BA system separator (approved up to and including fluid category 4) built into the filling valve prevents the heating water from flowing back into the drinking water line. Heating water containing inhibitors (corrosion and antifreeze agents) can also be permanently connected to the drinking water system using the filling valve, eliminating the need for the previously required hose connection.

After the filling process has been completed, the shut-off valve on the filling valve should be closed again for safety reasons.

• medium	drinking water
  Connection size	DN20
  Inlet pressure	max. 10 bar
  Outlet pressure	1.5 - 4 bar
  Factory setting	1.5 bar
  Filling capacity	1.35 m3/h at 1.5 bar Δp
  Operating temperature input	max. 30 °C (input side)
  Operating temperature output	max. 65ºC (output side)
  Installation position	horizontal, funnel connection downwards

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