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Expansion Vessel and Vessel Pump (47 products)

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. Read more Show less

  • 1 of 2

Dry Trap Tundish - 15mm x 32mm Compression

Part number: 23731

The TeslaTun is both a dry trap and a tundish combined, incorporating a sea...

  • New Product

    Just arrived. Latest version, etc.

Ex. VAT

£18.95

Save £3.55 (15%)

Inc. VAT

£22.74

Save £4.26 (15%)

Straight Filling Loop with Valve - 15mm

Part number: 15583

Metal braid filling loop comprising a DZR double check valve connected to e...

  • Bulk Savings

    Save when you order 25 or more

Ex. VAT

£7.46

Inc. VAT

£8.95

Expansion Vessel Service Valve 3/4" BSP Union x BSP PM

Part number: 23730

Service valve for sealed heating system expansion vessel.

  • New Product

    Just arrived. Latest version, etc.

Ex. VAT

£13.50

Inc. VAT

£16.20

Remote Filling Loop with Gauge - 15mm Compression

Part number: 22993

A remote filling loop for use in a sealed heating system which allows the e...

Ex. VAT

£11.21

Inc. VAT

£13.45

Expansion Vessel - 18 Litres

Part number: 20245

Sealed systems are the most commonly used form of central heating in Europe.

Ex. VAT

£45.98

Inc. VAT

£55.18

Expansion Vessel Central Heating - 50 Litres

Part number: 11638

Sealed system central heating expansion vessel.

Ex. VAT

£65.08

Inc. VAT

£78.10

Inta Safe-Group Vessel Fixing Kit with NRV

Part number: 24053

The Inta Safe-group consists of a wall fixing bracket designed to support a...

  • New Product

    Just arrived. Latest version, etc.

Ex. VAT

£46.05

Inc. VAT

£55.26

Straight Filling Loop with Valve - 15mm

Part number: 8148

15 mm compression, brass stop valve, metal braided flexible hose and DZR do...

  • Bulk Savings

    Save when you order 25 or more

Ex. VAT

£5.84

Inc. VAT

£7.01

Expansion Vessel Central Heating - 8 Litres

Part number: 11350

Sealed system central heating expansion vessel.

Ex. VAT

£18.54

Inc. VAT

£22.25

Expansion Vessel - 12 Litres

Part number: 20244

Sealed systems are the most commonly used form of central heating in Europe.

Ex. VAT

£47.00

Inc. VAT

£56.40

Expansion Vessel Central Heating - 24 Litres

Part number: 11636

Sealed system central heating expansion vessel.

Ex. VAT

£28.41

Inc. VAT

£34.09

Expansion Vessel Central Heating - 35 Litres

Part number: 11637

Sealed system central heating expansion vessel.

Ex. VAT

£40.29

Inc. VAT

£48.35

Mini Expansion Vessel Shock Arrestor - 1/2" BSP TM

Part number: 11355

Mini expansion vessel is a maintenance free device to accommodate small inc...

Ex. VAT

£12.75

Save £1.53 (10%)

Inc. VAT

£15.30

Save £1.84 (10%)

Expansion Vessel Central Heating - 12 Litres

Part number: 11351

Sealed system central heating expansion vessel.

Ex. VAT

£18.84

Inc. VAT

£22.61

Cordless Expansion Pressure Vessel Inflator

Part number: 22757

Vessel Jet is a hand held cordless high pressure air compressor with illumi...

Ex. VAT

£69.16

Inc. VAT

£82.99

Dry Trap Tundish - 15 x 22mm Compression

Part number: 23478

The TeslaTun is both a dry trap and a tundish combined, incorporating a sea...

Ex. VAT

£17.10

Inc. VAT

£20.52

Expansion Vessel - 24 Litres

Part number: 20246

Sealed systems are the most commonly used form of central heating in Europe.

Ex. VAT

£55.12

Inc. VAT

£66.14

Expansion Vessel Central Heating - 18 Litres

Part number: 11352

Sealed system central heating expansion vessel.

Ex. VAT

£23.98

Inc. VAT

£28.78

Expansion Vessel Mounting Bracket

Part number: 11353

Suitable for expansion vessels up to 25 litres.

Ex. VAT

£3.80

Inc. VAT

£4.56

Mini Expansion Vessel Shock Arrestor - 15mm

Part number: 23632

Stainless steel mini expansion vessel is a maintenance free device to accom...

  • Bulk Savings

    Save when you order 10 or more

Ex. VAT

£18.58

Inc. VAT

£22.30

Expansion Vessel - 8 Litres

Part number: 20243

Sealed systems are the most commonly used form of central heating in Europe.

Ex. VAT

£44.34

Inc. VAT

£53.21

B11AN Adjustable Hydrostat

Part number: 20976

The pipe mounted hydrostat (water pressure switch) protects sealed heating ...

Ex. VAT

£65.31

Inc. VAT

£78.37

Straight Tundish Open - 15mm x 22mm Compression

Part number: 20924

Corrosion resistant, acetal co-polymer straight through tundish provides Ty...

Ex. VAT

£4.21

Inc. VAT

£5.05

Pressure Vessel Hand Pump Angled Adaptor - 180mm

Part number: 22204

Angled adaptor, 180 mm

Ex. VAT

£8.01

Inc. VAT

£9.61

Rectangular Cold Water Storage Tank 18L - 4 Galls

Part number: 17416

Water storage tank, for feed and expansion....

Ex. VAT

£5.62

Inc. VAT

£6.74

Arctic Hayes Pressure Vessel Hand Pump - 3m Hose

Part number: 22203

Arctic Hayes heavy duty pressure vessel hand pump with 0 to 14 bar gauge, f...

Ex. VAT

£31.53

Inc. VAT

£37.84

Sealed System Filling Kit for Expansion Vessels

Part number: 11354

Sealed system filling kit. Contains all the essential components required f...

Ex. VAT

£24.99

Save £4.92 (16%)

Inc. VAT

£29.99

Save £5.90 (16%)

Expansion Vessel Central Heating - 80 Litres

Part number: 22828

Free standing vessel with ¾" BSP TM side connection.Max.

Ex. VAT

£92.75

Inc. VAT

£111.30

Pressure Vessel Service Kit

Part number: 22206

Pressure vessel service kit

Ex. VAT

£11.76

Inc. VAT

£14.11

Pressure Vessel Hand Pump Flexible Adaptor - 1100mm

Part number: 22205

Flexible adaptor, 1100 mm

Ex. VAT

£12.16

Inc. VAT

£14.59

Showing 30 out of 47 products

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