Free Next Day Delivery

UK Orders over £40 before 7pm
 

No Fuss Returns

Find out how we make it easy
 

Quick Shop

15,000 Products in stock
Basket 0

items

My Basket (0)

Your basket is empty

Delivery

Delivery

FREE Delivery!

On orders over £40*

Total inc. delivery and VAT

Total inc. delivery and exc. VAT

Browse

Find Products

Search our Catalogue

Expansion (40 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

  • 1 of 2

Expansion Vessel - 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 - 15mm Compression

Part number: 22993

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

  • New Product

    Just arrived. Latest version, etc.

Ex. VAT

£13.99

Save £2.18 (13%)

Inc. VAT

£16.79

Save £2.62 (13%)

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

£7.30

Inc. VAT

£8.76

Expansion Vessel Central Heating - 50 Litres

Part number: 11638

Sealed system central heating expansion vessel.

Ex. VAT

£61.05

Inc. VAT

£73.26

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

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

Part number: 11355

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

  • Bulk Savings

    Save when you order 10 or more

Ex. VAT

£16.39

Inc. VAT

£19.67

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 - 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

Expansion Vessel - 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

Straight Tundish Open - 15mm x 22mm Compression

Part number: 20924

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

Ex. VAT

£3.21

Save £0.65 (16%)

Inc. VAT

£3.85

Save £0.78 (16%)

Sealed System Filling Kit for Expansion Vessels

Part number: 11354

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

Ex. VAT

£27.39

Inc. VAT

£32.87

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

£5.72

Inc. VAT

£6.86

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 - 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 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

Rectangular Cold Water Storage Tank 18L - 4 Galls

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

Expansion Vessel - 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

Expansion Vessel Mounting Bracket

Part number: 11353

Suitable for expansion vessels up to 25 litres.

Ex. VAT

£3.48

Inc. VAT

£4.18

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

£29.99

Inc. VAT

£35.99

Rectangular Cold Water Storage Tank 114L - 25 Galls

Part number: 18671

Plastic cold water storage tanks for feed and expansion, manufactured to BS...

Ex. VAT

£73.32

Inc. VAT

£87.98

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

Byelaw 30 Kit Complete

Part number: 11454

Byelaw 30 kit complete (England and Wales).

Ex. VAT

£5.67

Inc. VAT

£6.80

Rectangular Cold Water Storage Tank 114L - 25 Galls

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

Straight Tundish Open - 22mm x 1" BSP F

Part number: 22086

Corrosion resistant, acetal co-polymer straight through tundish.

Ex. VAT

£7.75

Save £1.56 (16%)

Inc. VAT

£9.30

Save £1.87 (16%)

B11AN 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

Dry Trap Tundish - 15 x 22mm Compression

Part number: 23478

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

  • New Product

    Just arrived. Latest version, etc.

Ex. VAT

£15.21

Inc. VAT

£18.25

Tank Lid for 114 Litre/25 Gallon Rectangular Tank

Part number: 17465

Lid for water storage tank, for feed and expansion....

Ex. VAT

£17.82

Inc. VAT

£21.38

Showing 30 out of 40 products

Top