Branch Locator
Blog
Toolbox
Favourites
Account
Basket
VAT:
Ex
Inc
Expansion Vessels & Accessories
Filters
Type
Brand
Price
Height
Please select your collection branch...
Please enter your delivery address...
Showing 1—30 items of 329
City Plumbing sells a varied selection of boiler expansion vessels and accessories. Proper installation and maintenance of expansion vessels are essential for the safe and efficient operation of any heating system. It's recommended to consult with a qualified heating engineer for any questions or concerns.
What Are Boiler Expansion Vessels and Accessories?
A boiler expansion vessel is a crucial component of any central heating system. It accommodates the expansion of water as it heats up, preventing excessive pressure build-up that could lead to system damage.
Key Components of an Expansion Vessel
- Vessel Body: This is the main container, typically made of steel or stainless steel, that holds the water and a flexible diaphragm.
- Diaphragm: A rubber or synthetic membrane that separates the water in the system from a pre-charged gas, usually nitrogen.
- Pre-charged Gas: This gas, typically nitrogen, is compressed within the vessel and provides the necessary back pressure to accommodate the expanding water.
Accessories for Expansion Vessels
- Mounting Brackets: These are used to securely attach the expansion vessel to a wall or other stable surface.
- Isolation Valves: These valves allow for the isolation of the expansion vessel for maintenance or replacement without draining the entire system.
- Pressure Gauges: These gauges monitor the pressure within the expansion vessel, ensuring it's within the recommended range.
- Air Valves: These valves allow for the addition or release of air from the gas side of the diaphragm, adjusting the pre-charge pressure.
- Hoses and Pipes: Flexible hoses or rigid pipes are used to connect the expansion vessel to the heating system. These should be of appropriate size and material to withstand the system's pressure and temperature.
Common Hose and Pipe Types
- Copper Pipe: Durable and resistant to corrosion, but can be more expensive and difficult to bend.
- PEX Pipe: Flexible and easy to install, but may not be suitable for high-pressure applications.
- Stainless Steel Pipe: Strong and corrosion-resistant, but can be more expensive than other options.
- Flexible Hoses: Offer flexibility and ease of installation, but may have limitations on pressure and temperature ratings.
What Types of Expansion Vessels and Accessories Does City Plumbing Sell?
City Plumbing Supplies sells a range of projects from this category including expansion vessels, alongside various hose and pipe.
Here you can access some of the most top-quality names in the industry as well, from Vaillant, Glow-Worm and Worcester to Ideal, Viessmann and Baxi.
Shop Expansion Vessels and Accessories at City Plumbing
City Plumbing is the preferred choice of local plumber's merchants, working hard to help all homeowners and those working in the trade.
With a fantastic Trustpilot rating, a wealth of knowledge from four-plus decades of experience, and outstanding plumbing and heating products and advice, we’ll help you get the job done.
With over 350 branches nationwide, our prices are competitive to further ensure you get all your projects finished on budget.
Offering several Delivery Options and a Click & Collect service, if you’re looking for a City Plumbing near me, type your postcode into our branch locator to find your nearest City Plumbing Supplies.
Help & Feedback
Chat With Us
Give Us Feedback