Best Expansion Valves Deals Online in the UK (25 Deals Found)

Last Updated - 24/03/2026 Sort By:

Best Choice
HTS

New
HTS Boiler Flexible Valve Extensions Straight & Bent Flexible Valve Extensions for Expansion Vessel 450999
Versatile Design: Includes both straight and bent extensions, providing adaptable solutions for different installation n

£10.00
Generic

New
Ariston Kit A 406801 2 Litre Expansion Vessel & Non-Return Valve Elbi Alternative

£29.99
New
Reliance 102 Series 3.5, 4, 5, 6, 7, 8 & 10 bar Pressure Expansion Relief Valves
It has a high grade fibre glass reinforced plastic cap. Available in 1/2" or 3/4" screwed connections and with 15mm or 2

£34.99
HTS

New
HTS 35pcs Tire Valve Core Remover 4 in 1 Tire Valve Repair Kit Boiler Repair Kit Including 30pcs Valve Cores for Boiler
Versatile Functionality: This 4-in-1 kit is designed for versatile use, suitable for repairing tire valve cores in vario

£15.99
New
Expansion Valves External TES2/PES2 For Refrigerant R404A/R507
Expansion Valves External TES2. Expansion Valves TES2. Bookmark Us.

£36.74
Best Value
HTS

New
HTS 35pcs Tire Valve Core Remover 4 in 1 Tire Valve Repair Kit Boiler Repair Kit Including 30pcs Valve Cores for Boiler
Versatile Functionality: This 4-in-1 kit is designed for versatile use, suitable for repairing tire valve cores in vario

£15.99
Arctic Hayes

New
Arctic Hayes 221004 Expansion Pressure Vessel Service Kit
A supplementary kit for pressure vessel

£15.76
New
Danfoss valve body expansion Valve 067b4021 7/8x1 1/8 solder straightway valve
The Danfoss 067b4021 solder straightway valve is a high-quality product from Denmark known for its reliable performance.

£21.45
Heatrae Sadia

New
Heatrae Sadia Megaflo / Megaflow 8 Bar Expansion Relief Valve 95605893
Heatrae Sadia Megaflo / Megaflow 8 Bar Expansion Relief Valve 95605893

£32.99
New
Danfoss Tes 2 R404a/R507 068Z3403 Expansion Valve for Refrigerant Systems
Danfoss Tes 2 R404a/R507 068Z3403 Expansion Valve for Refrigerant Systems

£63.10
HTS

New
HTS - Worcester Greenstar Expansion Vessel & Pressure Relief Valve (PRV) 87161055450 87161064310
Perfect Compatibility: Designed specifically for Worcester Greenstar boilers, compatible with part numbers 87161055450 (

£64.99
23% Off
Ariston

New
Set of 2L Expansion Vessel and Non-Return Valve
Set of 2L expansion vessel and non-return valve

£38.73 £49.99
New
Straight & Bent Flexible Valve Extensions For Expansion Vessel 2000801859
Fans: Fan coils and motors failing due to boiler overheating will not be covered under warranty. DIRECT SALE. Once we ha

£8.97
Hyco

New
SF4 Unvented Pressure Reducing Kit Inc Expansion Vessel + Check Valve for Hyco Speeflow Water Heater
2 Litre Stainless Steel Expansion Vessel

£49.95
New
T-Bar Expansion Vessel Fixing Bar – Five Options
Five Options – T-Bar Expansion Vessel Fixing Bar. T-Bar Expansion Vessel Fixing Kit (Service Valve). T-Bar Expansion Ves

£66.40
Frankberg

New
Frankberg AC Expansion Valve Compatible with A4 8K2 2012-2015 A4 Allroad 8KH 2012-2016 A4 Avant 8K5 2012-2015 A5 Sportba
【Attention】Before making a purchase, please check the "AmazonConfirmedFit" at the top left. You can identify your vehicl

£19.99
New
Heatrae Sadia Megaflo Cold Water Inlet Control Kit - 95605894 (6 Options)
Isolation Valve. Direct Deposit. See more.

£33.97
New
Universal Straight & Bent Flexible Valve Extensions For All Expansion Vessels
DIRECT SALE. Fans: Fan coils and motors failing due to boiler overheating will not be covered under warranty. Once we ha

£8.97
New
Heatrae Sadia Megaflo Combination Valves 95605869/95605021 - 3 Versions Availabl
Option 3 - Complete Combination with Pressure Relief Valve. 8 bar Pressure Relief Valve. Balance Take Off. PICK UP OPTIO

£32.85 £38.26
New
Orifice -1, 2, 3, 4, 5 for Expansion valves compatible with Danfoss TS2 and TES2
Orifice for expansion vale. Orifice -1, 2, 3, 4, 5.

£9.75
New
Potable Expansion Vessels 8,12,19,24L + Bracket + Hose + Service Valve
The vessel features a galvanized steel flange and a welded center seam for enhanced durability. Inta Trade Tec Potable E

£54.19
New
Universal Boiler Expansion Vessel Service Kit with Core Valve Versatile Usage
Boiler Expansion Vessel Service Tool Kit with Core Valve.

£3.49
New
Straight Flexible Valve Extension For Expansion Vessel 248722
Fans: Fan coils and motors failing due to boiler overheating will not be covered under warranty. DIRECT SALE. Once we ha

£4.52
New
NRF 38495 Expansion Valve, air conditioning for ,ABARTH,CHRYSLER,FIAT,IVECO,LANC

£25.66
New
Danfoss Refrigeration Thermostatic Expansion Valve TE2 R448a/R449A-068Z3730
The Danfoss Refrigeration Thermostatic Expansion Valve TE2 R448a/R449A-068Z3730 is a precision-engineered component desi

£58.49

25 Expansion Valves deals are available from: Amazon, eBay stores, starting from £3.49.
The biggest discount we found is 23% on Set of 2L Expansion Vessel and Non-Return Valve at Amazon.
The lowest price we found is £3.49 while the highest is £66.40.
Prices for the best Expansion Valves deals average at £30.32.
Last updated on March 24, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Expansion Valves.