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Expansion (39 products)
BES stock the correctly sized expansion vessels to meet your needs. Ready for next day delivery are 8, 12, 18, 24, 35 and 50 litre capacity vessels. All kitemarked to BS 4814. We also stock safety relief valves, mounting brackets, filling loops and sealed system filling kits. Read more Show less
Straight Filling Loop with Valve - 15mm
Part number: 15583
Metal braid filling loop comprising a DZR double check valve connected to e...
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Bulk Savings
Save when you order 25 or more
Ex. VAT
£7.30
Inc. VAT
£8.76
Expansion Vessel Robokit - 18 Litres
Part number: 20245
Sealed systems are the most commonly used form of central heating in Europe.
Ex. VAT
£40.69
Inc. VAT
£48.83
Remote Filling Loop with Gauge - 15 mm Compression
Part number: 22993
A remote filling loop for use in a sealed heating system which allows the e...
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New Product
Just arrived. Latest version, etc.
Ex. VAT
£16.17
Inc. VAT
£19.40
Mini Expansion Vessel Shock Arrester
Part number: 11355
Mini expansion vessel is a maintenance free device to accommodate small inc...
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Bulk Savings
Save when you order 10 or more
Ex. VAT
£16.39
Inc. VAT
£19.67
Expansion Vessel Robokit - 24 Litres
Part number: 20246
Sealed systems are the most commonly used form of central heating in Europe.
Ex. VAT
£50.47
Inc. VAT
£60.56
Cordless Expansion Pressure Vessel Inflator
Part number: 22757
Vessel Jet is a hand held cordless high pressure air compressor with illumi...
Ex. VAT
£65.88
Inc. VAT
£79.06
Straight Filling Loop with Valve - 15mm
Part number: 8148
15 mm compression, brass stop valve, metal braided flexible hose and DZR do...
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Bulk Savings
Save when you order 25 or more
Ex. VAT
£5.72
Inc. VAT
£6.86
Expansion Vessel Central Heating - 50 Litres
Part number: 11638
Sealed system central heating expansion vessel.
Ex. VAT
£61.05
Inc. VAT
£73.26
Expansion Vessel Robokit - 12 Litres
Part number: 20244
Sealed systems are the most commonly used form of central heating in Europe.
Ex. VAT
£43.04
Inc. VAT
£51.65
Cold Water Storage Tank Rectangular 18 Litres/4 Gal
Part number: 17416
Water storage tank, for feed and expansion.Size : H 365 mm (14") x L 455 mm...
Ex. VAT
£4.86
Inc. VAT
£5.83
15 mm x 22 mm Compression
Part number: 20924
Corrosion resistant, acetal co-polymer straight through tundish provides Ty...
Ex. VAT
£3.86
Inc. VAT
£4.63
Expansion Vessel Central Heating - 12 Litres
Part number: 11351
Sealed system central heating expansion vessel.
Ex. VAT
£17.67
Inc. VAT
£21.20
Expansion Vessel Central Heating - 35 Litres
Part number: 11637
Sealed system central heating expansion vessel.
Ex. VAT
£37.79
Inc. VAT
£45.35
Expansion Vessel Central Heating - 24 Litres
Part number: 11636
Sealed system central heating expansion vessel.
Ex. VAT
£26.65
Inc. VAT
£31.98
Expansion Vessel Central Heating - 18 Litres
Part number: 11352
Sealed system central heating expansion vessel.
Ex. VAT
£22.49
Inc. VAT
£26.99
Expansion Vessel Central Heating - 8 Litres
Part number: 11350
Sealed system central heating expansion vessel.
Ex. VAT
£17.39
Inc. VAT
£20.87
Sealed System Filling RoboKit for expansion vessels
Part number: 11354
Robokit sealed system filling kit. Contains all the essential components re...
Ex. VAT
£27.39
Inc. VAT
£32.87
Expansion Vessel Robokit - 8 Litres
Part number: 20243
Sealed systems are the most commonly used form of central heating in Europe.
Ex. VAT
£40.61
Inc. VAT
£48.73
Pressure Vessel Hand Pump 3m hose
Part number: 22203
Hayes heavy duty pressure vessel hand pump with 0 to 5 bar gauge, footplate...
Ex. VAT
£28.46
Inc. VAT
£34.15
Expansion Vessel Central Heating - 80 Litres
Part number: 22828
Free standing vessel with ¾" BSP TM side connection.Max.
Ex. VAT
£84.54
Inc. VAT
£101.45
Expansion Vessel Mounting Bracket
Part number: 11353
Suitable for expansion vessels up to 25 litres.
Ex. VAT
£3.48
Inc. VAT
£4.18
Rectangular Cold Water Storage Tank - 114 Litres (25 Galls) - WRAS Approved
Part number: 18671
Plastic cold water storage tanks for feed and expansion, manufactured to BS...
Ex. VAT
£73.32
Inc. VAT
£87.98
Rectangular Cold Feed Storage Water Tank 25 GallonÂ
Part number: 17464
Water storage tank, for feed and expansion.Size : H 533 mm (21") x L 736 mm...
Ex. VAT
£37.03
Inc. VAT
£44.44
Adjustable Hydrostat
Part number: 20976
The pipe mounted hydrostat (water pressure switch) protects sealed heating ...
Ex. VAT
£61.02
Inc. VAT
£73.22
Expansion Vessel Central Heating - 105 Litres
Part number: 22829
Free standing vessel with ¾" BSP TM side connection.Max.
Ex. VAT
£116.40
Inc. VAT
£139.68
Ex. VAT
£5.67
Inc. VAT
£6.80
Hayes Pressure Vessel Hand Pump & Free Angled Adaptor
Part number: 22315
Hayes heavy duty pressure vessel hand pump with 0 to 5 bar gauge, footplate...
Ex. VAT
£25.52
Inc. VAT
£30.62
22 mm x 1" BSP F
Part number: 22086
Corrosion resistant, acetal co-polymer straight through tundish.
Ex. VAT
£9.31
Inc. VAT
£11.17
Ex. VAT
£10.62
Inc. VAT
£12.74
Straight Filling Loop with Tee - 15mm
Part number: 8165
15 mm compression, brass tee stop valve, metal braided flexible hose and DZ...
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Bulk Savings
Save when you order 25 or more
Ex. VAT
£7.02
Inc. VAT
£8.42
