Expansion vessel for central heating, 300 l, standing
The free-standing expansion vessel for central heating installations stabilises pressure in the system and supports safe, efficient boiler operation. It is designed for closed heating circuits and finished in a distinctive red RAL 3000 colour, which matches standard technical room equipment.
A pre-charged air chamber set to 1.5 bar helps maintain correct operating pressure in domestic heating systems, including those where users often ask what pressure an expansion tank should have. The vessel works reliably within a wide temperature range from -10°C to +100°C, so it copes well with both cold start-up and high-temperature operation during peak heating seasons.
The tank is made of deep-drawn steel, giving the body high mechanical strength and resistance to deformation under load. Inside, a replaceable EPDM membrane separates water from the air chamber; the material is suited to long-term contact with heating water and can be renewed when worn, extending the service life of the vessel.
The maximum working pressure of 8 bar fits most modern central heating installations and supports stable performance of boilers and pumps. This free-standing expansion vessel is a solid choice for installers and homeowners who expect durable construction, predictable pressure control and easy maintenance in everyday heating operation.
- Initial pressure [bar]:
- 1,5
- Maximum operating pressure [bar]:
- 8