Diaphragm expansion vessel REFIX DE-12, 12L, 10 bar / 70°C, threaded connection G3/4", blue, for DHW, fire protection, underfloor heating, geothermal, hanging, with non-replaceable membrane 7302000

Expansion vessel with diaphragm – a key to a stable installation

The Refix DE-12 diaphragm vessel with a capacity of 12 liters is a reliable element of central heating, domestic hot water, fire protection, underfloor heating and geothermal systems. Its task is to maintain optimal pressure in the installation, compensate for changes in water volume resulting from temperature fluctuations and store a water reserve. This ensures stable and safe operation of the entire system.

The Refix DE-12 vessel is distinguished by its solid construction and high quality workmanship. Made of corrosion-resistant materials, it guarantees long-lasting and trouble-free operation. The blue housing indicates its intended use for domestic hot water installations. A G3/4" threaded connection facilitates installation and integration with other installation elements.

Construction and application

Diaphragm vessels perform three key functions: maintaining pressure within acceptable limits, compensating for changes in water volume caused by temperature, and compensating for water losses in the installation. The Refix DE-12 model is particularly recommended for installations that do not meet the requirements of DIN 1988, such as systems with increased requirements in terms of corrosion protection. Equipped with a non-replaceable diaphragm, the vessel is ready to operate immediately after installation.

• Capacity 12 liters – optimal for most home installations.
• Maximum working pressure 10 bar – ensures safety even in systems with higher working pressure.
• Maximum working temperature 70°C – enables use in domestic hot water and central heating installations.
• Connection G3/4" – standard size facilitating connection to an existing installation.
• Hanging construction - allows for flexible mounting in limited space.
• PZH certificate - confirms safety of use and compliance with sanitary standards.

Whether you are a professional installer or an end user, the Refix DE-12 diaphragm vessel is an investment in the comfort and safety of your installation. It provides stable system operating conditions, protecting it from damage and extending its lifespan.