The Refix DE 33/10 membrane expansion vessel is designed for closed circuits of utility and drinking water, where it compensates for volume changes and maintains stable pressure in the system. The water is stored in a replaceable bladder, so the metal walls of the vessel do not come into direct contact with the medium, significantly increasing the system's resistance to corrosion.

The DE 33/10 model with a volume of 33l is particularly suitable for systems with higher oxygen content or for brine circuits of heat pumps. The vessel is designed for a maximum operating pressure of 10 bar, equipped with a bottom threaded connection G3/4" and mounting brackets for easy wall installation. For sizes 2–33l, a hygiene certification for drinking water (ACS/WRAS) is available.

Main Features

• Membrane expansion vessel for closed circuits of utility and drinking water
• Replaceable bladder from a volume of 33l for easy maintenance and longer lifespan
• Suitable for systems with increased oxygen content and brine circuits of heat pumps
• Anti-corrosion design of all parts in contact with water
• Certification for use with drinking water (ACS/WRAS)
• Compact dimensions with the option of wall mounting on brackets

Technical Parameters