Round 6L Expansion Tank for Wall-Mounted Electric & Gas Boilers
Engineered with anti-corrosion steel and a sealed diaphragm, it effectively absorbs pressure fluctuations caused by thermal expansion. This not only protects the boiler from over-pressure conditions but also improves overall heating efficiency. Easy to install and compatible with most wall-mounted boilers, it is a dependable upgrade for any heating system.
Features
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Classic Round Design — Ensures even pressure distribution for optimal system stability.
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6L Capacity — Provides consistent pressure buffering for household boiler systems.
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Anti-Corrosion Steel Body — Built to last in humid and high-temperature environments.
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Wide Compatibility — Suitable for both gas and electric wall-mounted boilers.
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Enhanced System Protection — Extends boiler lifespan by preventing pressure-related failures.

Product Parameter
| Parameter | Value |
|---|---|
| Product Type | Round Expansion Tank |
| Capacity | 6L |
| Shape | Round / Circular |
| Compatible Systems | Wall-Mounted Electric & Gas Boilers |
| Material | Anti-Corrosion Steel |
| Working Pressure | 0.3–0.5 MPa |
| Diaphragm Type | Sealed Rubber Diaphragm |
| Installation | Internal/External Boiler Mounting |
| Connection | Standard Threaded Fitting |
| Application | Household / Commercial Heating Systems |
FAQ
1. What is the purpose of a round expansion tank?
It stabilizes heating system pressure by absorbing water expansion during heating cycles.
2. Is this tank compatible with all boilers?
It fits most wall-mounted electric and gas boiler systems with standard connections.
3. Does it come pre-pressurized?
Yes, and the pressure can be adjusted based on specific boiler requirements.
4. Can I replace my old expansion tank with this one?
Yes, as long as the specifications match your system’s requirements.
5. Is the round tank more durable than the square one?
Round tanks offer excellent structural strength and evenly dispersed internal pressure.




