Reliance Aquasystem 100 Litre Heating Expansion Vessel Xves100100

Vessel Size (litres) Static Head (metres) Boiler Rating (kW) BTU 5 5 10 8.90 7.18 30,366 22,559 8 5 10 14.33 11.50 45,024 36,133 12 5 10 21.58 17.25 67,804 54,199 18 5 10 15 32.50 25.83 19.25 102,115 81,157 60,483 24 5 10 15 43.07 34.48 25.90 135,321 108,331 81,356 35 5 10 15 63 ...Vessel Size (litres) Static Head (metres) Boiler Rating (kW) BTU 5 5 10 8.90 7.18 30,366 22,559 8 5 10 14.33 11.50 45,024 36,133 12 5 10 21.58 17.25 67,804 54,199 18 5 10 15 32.50 25.83 19.25 102,115 81,157 60,483 24 5 10 15 43.07 34.48 25.90 135,321 108,331 81,356 35 5 10 15 63.00 50.30 37.50 197,925 158,020 117,716 50 5 10 15 90.16 71.80 53.65 283,241 225,550 168,350 80 5 10 15 143.70 115.00 86.10 451,505 361,330 270,526 100 5 10 15 179.60 143.70 107.70 564,303 541,505 338,393 If the system volume is known, expansion vessels can be sized with the formula: V = eC / (1 – (p1/p2)) V The total volume or nominal size of the expansion vessel. It is not the acceptance volume. (See product description).

C The total volume of water in the system (litres). P1 The fill pressure of the system in Bars absolute (atmospheric or gauge pressure plus one Bar). P2 The setting of the expansion/pressure relief valve in Bars absolute (atmospheric or gauge pressure plus one Bar).

e The expansion factor that relates to the maximum system requirements. Expansion factor 'e' Temperature °C 0.0324 85 0.0359 90 0.0396 95 0.0434 100