Solar-Plus CE 50 Litre Expansion Vessel with feet

SOLAR-PLUS CE - Expansion Vessels for solar heating systems

In the solar circuit, the particularly high temperature requires heat relief. With solar liquid, temperatures higher than 200°C (392°F) can be reached - it then 'evaporates' and can reach the solar station damaging essential parts such as pumps, fittings, gaskets and above all the tank membrane. ZILMET has developed a special membrane that can withstand temperatures of over 100°C (212°F).

The SolarPlus has a flat diaphragm design and a welded steel vessel. The vessels are designed for system temperatures reaching 120°C, and peaks of 130°C actually inside the vessel. 

Expansion vessels should always be located on the cool side of the system, and as far from the collector as possible. To this extent connection points are located on the solar pump station. If the vessel can only be located in an extreme temperature location, then Intaeco and Zilmet recommend the addition of a VSG intermediate heat dissipation vessel to the expansion vessel installation.

Zilmet solar vessels are suitable for use in glycol based fluid systems with a mix ratio up to 50

Solar-Plus CE is available in a wide range of capacity sizes from 12 litres to 600 litres.

Other Zilmet options:

VSG Additional Intermediate Vessels: These tanks are equipped with entry and exit valves and is placed before the solar expansion tank. This tank provides heat dispersion by reducing the working temperature and therefore greatly increasing the life of the tank.

Solar-Plus Safe: This is a new series of vessel with an advanced concept - particularly where space is a problem.  Solar-Plus Safe combines a Solar-Plus with an additional tank.  All included in a vertical tank that allows a 40% reduction in require space and a 50% reduction in installation time.