Expansion vessels and accessories for safe and efficient HVAC systems
A functioning expansion vessel is a crucial component in closed heating and cooling systems. When water is heated, it expands, and without a pressure expansion vessel, the pressure in the system can rise to harmful levels. Here at Velltra you will find a carefully selected range of robust expansion vessels as well as complete fittings and accessories that ensure stable operation in your property.
Whether you are looking for a smaller vessel for the villa or larger volumes for commercial properties, our products offer high functionality and a long service life. By investing in the right accessories, such as safety valves and pressure gauges, you protect your heating system from excessive pressure and save both time and maintenance costs.
Explore our range below and find the right components for a safe and efficient installation.
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ARMATURSATS 20 - 1,5 FLAMCO FLEXCON
Armatursats 20 - 1,5 Flamco Flexcon, för expansionskärl 2 till 50L. Med säkerhetsventil DN20.
5530461
89.2EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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Armatursats 20 IPX TYP V 1,5 bar
Komplett med samlingsrör, säkerhetsventil, manuell avluftare och tryckmätare.
5535369
54.1EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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Fitting Kit G25 IPX Type 3
Fitting kit type 3, complete with manifold, safety valve, automatic air vent, and pressure gauge.
5535320
201.0EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 3 till 7 vardagar
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Flamco Armatursats 1,5 - 2,5 bar
Flamco Armatursats 1,5 - 2,5 bar med säkerhetsventil G20 (DN20). utvändig gänga x klämring G20 x 22mm
5530478
107.5EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 4 till 10 vardagar
Choose the right expansion vessel and accessories
Choosing the right expansion vessel and associated fittings is crucial to ensuring optimal function and safety in heating systems and water installations. The expansion vessel absorbs the volume changes that occur when the liquid in a closed system changes temperature, preventing harmful pressure surges and protecting the pipes.
What should you consider before buying?
To choose the right equipment for your system, there are some key factors you should keep in mind:
- System volume and temperature: The size of the vessel depends on how much water is in the entire heating system and what maximum working temperature is achieved.
- Pre-pressure and opening pressure: It is important to check the pre-pressure of the vessel and what opening pressure (bar) the safety valve in the fitting kit needs to have.
- Installation space: Check the dimensions of the expansion vessel so that it fits in the boiler room or installation space.
- Compatible accessories: Using custom fitting kits simplifies installation considerably and gives you direct control over the system pressure via an integrated pressure gauge.
Advantages of complete fitting kits
When installing an expansion vessel, it is extremely practical to supplement with a custom fitting kit. These usually combine a safety valve, pressure gauge and shut-off or connection in a single unit.
- Easier installation: You do not have to assemble individual connections and save time during installation.
- Built-in safety: The safety valve automatically releases liquid if the pressure exceeds the permitted limit.
- Clear reading: With a pressure gauge, you get a clear overview of the current pressure in the system, which makes it easy to carry out ongoing checks and maintenance.
Invest in reliable components for your heating system to reduce the risk of leakage and wear. If you have any questions about which model suits your system best, you are always welcome to contact us.