The Reflex Refix DE 8/10 (7301000) membrane expansion vessel is designed to maintain pressure in closed circuits of utility water, fire and operational distribution systems, or underfloor heating. It stabilises pressure conditions in the system, compensates for volume changes during heating, and protects pipes and fittings from undesirable fluctuations.

The vessel is constructed for a maximum operating pressure of 10 bar and water temperatures up to 70°C. The membrane, according to DIN EN 13831, separates the gas and water spaces, and the parts in contact with water are made in a corrosion-resistant design. Sizes from 2–33l are ACS certified for contact with drinking water. The compact volume of 8 l allows for easy installation even in smaller technical rooms.

Main Features

• Membrane expansion vessel for closed circuits of utility and operational water
• Pressure stabilisation and compensation for volume changes during water heating
• Operating pressure up to 10 bar, for water temperatures up to 70°C
• Corrosion-resistant design of parts in contact with water
• Compact volume of 8 l suitable for smaller systems and technical rooms

Technical Specifications