This manual provides installation, operation, and maintenance instructions for the Flamco Airfix D diaphragm pressure expansion vessel used in potable water…
The document serves as an installation and operating guide for the Flamco Airfix D diaphragm pressure expansion vessel. It details compliance with EU Directive 97/23/EC, safety requirements regarding pressure reducing valves, and specific mounting instructions based on vessel capacity (8-25 litres vs 35 litres). The manual emphasizes that the vessel must be used in combination with an Airfix TD T-piece for flow-through function approval.
| Capacity | 8 - 25 litres / 35 litres |
|---|---|
| Gas charge | 4,0 bar |
| Max. working pressure | 10,0 bar |
| Test pressure | 14,3 bar |
| Max. temp. diaphragm | 70 °C |
A pressure reducing valve must be fitted upstream in the pipeline after the water meter to ensure constant pressure.
No, the vessel will not have the required flow-through function for DVGW or KIWA approval without the Airfix TD.
Flamco provides a 5-year warranty on the condition that the Airfix expansion vessel is serviced by a qualified installer each year.