Diaphragm expansion vessel REFIX DE-18, 18L, 10 bar / 70°C, threaded connection G3/4", blue, for DHW, fire protection, underfloor heating, geothermal, wall-mounted, with non-replaceable membrane 7303000

Pressure expansion vessel for stabilizing pressure in installations

This Refix DE expansion vessel, with a capacity of 18 liters, is designed to maintain stable pressure in DHW installations, as well as in fire protection systems, underfloor heating, and geothermal systems. This is particularly important to ensure the proper operation and safety of these systems. The device effectively compensates for changes in water volume due to temperature fluctuations and compensates for any water loss in the installation.

The Refix DE vessel is distinguished by its solid construction and high quality workmanship. It has a G3/4” threaded connection, which facilitates installation and integration with the existing installation. The blue color of the housing makes it easy to identify and looks aesthetically pleasing in the technical room. Made of corrosion-resistant materials, it ensures long-lasting and trouble-free operation.

Characteristic features and application

• Versatility: Ideal for domestic water, fire protection, underfloor heating and geothermal systems, especially where DIN 1988 standards do not apply.
• Safety: Provides protection against exceeding the maximum permissible pressure and against falling below the minimum pressure, preventing cavitation and evaporation.
• Durability: Made of high-quality corrosion-resistant materials, which guarantees a long service life of the device.
• Capacity and dimensions: A capacity of 18 liters with dimensions of 377 mm height and 280 mm diameter makes the vessel compact and easy to install even in limited spaces.
• Bladder membrane: Equipped with a bladder membrane compliant with PN-EN 13831 – ensures effective separation of water from gas, stabilizing the pressure in the installation.
• PZH Certificate: Has a certificate from the State Sanitary Inspection, confirming its safety for health and the environment.
• EU Approval: Meets the requirements of Directive 2014/68/EU on pressure equipment, guaranteeing its compliance with European safety standards.

Whether you are a professional installer or an end user – the Refix DE vessel is a reliable choice to ensure reliable protection and stable pressure in your water or heating installation.