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    Expansion
    Expansion

    Expansion

    BES stock the correctly sized expansion vessels to meet your needs. Including our new range of robokit compact vessels for when space is tight. Both types are 8, 12, 18 litre capacity vessels with the standard range having 24, 35, 50, 80, 105, litre capacity. All kitemarked to BS 4814. We also stock safety relief valves, mounting brackets, filling loops and sealed system filling kits.

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    Mini Expansion Vessel Shock Arrestor - 1/2" BSP TM Mini Expansion Vessel Shock Arrestor - 1/2" BSP TM Mini Expansion Vessel Shock Arrestor - 1/2" BSP TM
    Mini Expansion Vessel Shock Arrestor - 1/2" BSP TM Part Number: 11355
    Was £17.30 £14.42 Now £15.59 £12.99

    Save £1.72 £1.43 (9%)

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    Straight Filling Loop with Two Stop Valves - 15mm Straight Filling Loop with Two Stop Valves - 15mm Straight Filling Loop with Two Stop Valves - 15mm
    Straight Filling Loop with Two Stop Valves - 15mm Part Number: 15583
    £9.13 £7.61 As low as £7.31
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    Expansion Vessel - 18 Litres Expansion Vessel - 18 Litres Expansion Vessel - 18 Litres
    Expansion Vessel - 18 Litres Part Number: 20245
    Was £59.48 £49.57 Now £53.99 £44.99

    Save £5.50 £4.58 (9%)

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    Remote Filling Loop with Gauge - 15mm Compression Remote Filling Loop with Gauge - 15mm Compression Remote Filling Loop with Gauge - 15mm Compression
    Remote Filling Loop with Gauge - 15mm Compression Part Number: 22993
    Was £12.34 £10.28 Now £11.10 £9.25

    Save £1.24 £1.03 (10%)

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    Rectangular Cold Water Storage Tank 114L - 25 Galls Rectangular Cold Water Storage Tank 114L - 25 Galls Rectangular Cold Water Storage Tank 114L - 25 Galls
    Rectangular Cold Water Storage Tank 114L - 25 Galls Part Number: 18671
    £97.76 £81.47
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    Byelaw 30 Kit Complete Byelaw 30 Kit Complete Byelaw 30 Kit Complete
    Byelaw 30 Kit Complete Part Number: 11454
    £7.44 £6.20
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    Expansion Vessel Central Heating - 50 Litres Expansion Vessel Central Heating - 50 Litres Expansion Vessel Central Heating - 50 Litres
    Expansion Vessel Central Heating - 50 Litres Part Number: 11638
    £81.61 £68.01
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    Rectangular Cold Water Storage Tank 18L - 4 Galls Rectangular Cold Water Storage Tank 18L - 4 Galls Rectangular Cold Water Storage Tank 18L - 4 Galls
    Rectangular Cold Water Storage Tank 18L - 4 Galls Part Number: 17416
    £7.19 £5.99
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    Straight Filling Loop with Valve - 15mm Straight Filling Loop with Valve - 15mm Straight Filling Loop with Valve - 15mm
    Straight Filling Loop with Valve - 15mm Part Number: 8148
    Was £7.18 £5.98 Now £5.70 £4.75

    Save £1.48 £1.23 (20%)

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    Expansion Vessel - 12 Litres Expansion Vessel - 12 Litres Expansion Vessel - 12 Litres
    Expansion Vessel - 12 Litres Part Number: 20244
    Was £59.22 £49.35 Now £53.99 £44.99

    Save £5.23 £4.36 (8%)

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    Expansion Vessel Central Heating - 18 Litres Expansion Vessel Central Heating - 18 Litres Expansion Vessel Central Heating - 18 Litres
    Expansion Vessel Central Heating - 18 Litres Part Number: 11352
    £29.80 £24.83
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    Expansion Vessel Central Heating - 8 Litres Expansion Vessel Central Heating - 8 Litres Expansion Vessel Central Heating - 8 Litres
    Expansion Vessel Central Heating - 8 Litres Part Number: 11350
    £23.24 £19.37
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    Expansion Vessel Central Heating - 105 Litres Expansion Vessel Central Heating - 105 Litres Expansion Vessel Central Heating - 105 Litres
    Expansion Vessel Central Heating - 105 Litres Part Number: 22829
    £160.14 £133.45
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    Expansion Vessel Central Heating - 12 Litres Expansion Vessel Central Heating - 12 Litres Expansion Vessel Central Heating - 12 Litres
    Expansion Vessel Central Heating - 12 Litres Part Number: 11351
    £23.63 £19.69
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    Cordless Expansion Pressure Vessel Inflator Cordless Expansion Pressure Vessel Inflator Cordless Expansion Pressure Vessel Inflator
    Cordless Expansion Pressure Vessel Inflator Part Number: 22757
    £82.99 £69.16
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    Expansion Vessel Central Heating - 35 Litres Expansion Vessel Central Heating - 35 Litres Expansion Vessel Central Heating - 35 Litres
    Expansion Vessel Central Heating - 35 Litres Part Number: 11637
    £50.52 £42.10
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    Expansion Vessel Service Valve 3/4" BSP Union x BSP PM Expansion Vessel Service Valve 3/4" BSP Union x BSP PM Expansion Vessel Service Valve 3/4" BSP Union x BSP PM
    Expansion Vessel Service Valve 3/4" BSP Union x BSP PM Part Number: 23730
    £14.39 £11.99
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    Straight Tundish Open - 15mm x 22mm Compression Straight Tundish Open - 15mm x 22mm Compression Straight Tundish Open - 15mm x 22mm Compression
    Straight Tundish Open - 15mm x 22mm Compression Part Number: 20924
    £5.30 £4.42
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    Sealed System Filling Kit for Expansion Vessels Sealed System Filling Kit for Expansion Vessels Sealed System Filling Kit for Expansion Vessels
    Sealed System Filling Kit for Expansion Vessels Part Number: 11354
    £36.65 £30.54
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    Expansion Vessel Central Heating - 80 Litres Expansion Vessel Central Heating - 80 Litres Expansion Vessel Central Heating - 80 Litres
    Expansion Vessel Central Heating - 80 Litres Part Number: 22828
    £116.30 £96.92
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    Dry Trap Tundish - 15 x 22mm Compression Dry Trap Tundish - 15 x 22mm Compression Dry Trap Tundish - 15 x 22mm Compression
    Dry Trap Tundish - 15 x 22mm Compression Part Number: 23478
    £20.52 £17.10
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    Inta Safe-Group Vessel Fixing Kit Inta Safe-Group Vessel Fixing Kit Inta Safe-Group Vessel Fixing Kit
    Inta Safe-Group Vessel Fixing Kit Part Number: 24052
    £49.74 £41.45
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    Dry Trap Tundish - 15mm x 32mm Compression Dry Trap Tundish - 15mm x 32mm Compression Dry Trap Tundish - 15mm x 32mm Compression
    Dry Trap Tundish - 15mm x 32mm Compression Part Number: 23731
    Was £27.00 £22.50 Now £23.94 £19.95

    Save £3.06 £2.55 (11%)

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    Expansion Vessel - 8 Litres Expansion Vessel - 8 Litres Expansion Vessel - 8 Litres
    Expansion Vessel - 8 Litres Part Number: 20243
    £55.87 £46.56
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    Expansion Vessel - 24 Litres Expansion Vessel - 24 Litres Expansion Vessel - 24 Litres
    Expansion Vessel - 24 Litres Part Number: 20246
    £69.44 £57.87
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    Arctic Hayes Pressure Vessel Hand Pump - 3m Hose Arctic Hayes Pressure Vessel Hand Pump - 3m Hose Arctic Hayes Pressure Vessel Hand Pump - 3m Hose
    Arctic Hayes Pressure Vessel Hand Pump - 3m Hose Part Number: 22203
    £38.78 £32.32
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    Expansion Vessel Central Heating - 24 Litres Expansion Vessel Central Heating - 24 Litres Expansion Vessel Central Heating - 24 Litres
    Expansion Vessel Central Heating - 24 Litres Part Number: 11636
    £35.63 £29.69
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    Mini Expansion Vessel Shock Arrestor - 15mm Mini Expansion Vessel Shock Arrestor - 15mm Mini Expansion Vessel Shock Arrestor - 15mm
    Mini Expansion Vessel Shock Arrestor - 15mm Part Number: 23632
    £22.97 £19.14 As low as £20.66
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    Expansion Vessel Mounting Bracket Expansion Vessel Mounting Bracket Expansion Vessel Mounting Bracket
    Expansion Vessel Mounting Bracket Part Number: 11353
    £4.79 £3.99
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    Tank Lid for 18 Litre/4 Gallon Rectangular Tank Tank Lid for 18 Litre/4 Gallon Rectangular Tank Tank Lid for 18 Litre/4 Gallon Rectangular Tank
    Tank Lid for 18 Litre/4 Gallon Rectangular Tank Part Number: 17417
    £4.13 £3.44
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    Items 1-30 of 45

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