Reliance – Aquasystem 80 Litre Heating Expansion Vessel XVES100090
Original price was: £134.87.£94.41Current price is: £94.41.
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- Pressure2.0 bar
- Vessel featuresVessel
- ManoMano ReferenceME71795010
- Product codexves100090
Aquasystem 80 Litre Heating Expansion Vessel XVES100090
Dimensions:
H x 687mm – D x 410mm
Fittings:
1 inch
Heating Vessel Sizing Guide
The following guide has been prepared as an aid to correctly size a sealed heating system expansion vessel, for further information please contact us.
| 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 |
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