Ariston CLAS - Expansion Vessel

Manuale didattico CLAS
Pag. 35 di 71
Manuale Didattico – ACO
4.12 EXPANSION VESSEL
The expansion vessel absorbs primary circuit water expansion when there is a boiler temperature raise.
It is constituted by two parts separated by a SBR rubber membrane. On one side nitrogen on the other water
of the primary circuit. The nitrogen chamber (which can be compressed) absorbs the water volume increased
because of temperature raise.
The t expansion vessel has been conceived for an approx. 175 litre heating system.
Technical features
Capacity
8 litres
Maximum operating temperature
90°C
Nitrogen pressure
1 bar
Maximum operating pressure
3.0bar
INERT
GAS
WATER
Maximum water content in the system (litres)
Heating circuit pressure
(bar)