Diaphragm expansion vessel REFLEX S-25, 25L, 10 bar / 70°C, threaded connection G3/4", white, for heating, solar and cooling systems, hanging, with non-replaceable membrane 9702900

Expansion vessel for heating, solar and cooling systems

This diaphragm expansion vessel from REFLEX, from the S series, with a capacity of 25 liters, is designed for closed heating, solar and cooling systems. Its function is to compensate for the expansion of the liquid and maintain stable pressure in the system. The vessel is perfect for both new and existing installations.

Construction and application

The Reflex S expansion vessel uses a membrane to separate water from gas, which prevents oxygen from entering the installation and minimizes corrosion. The construction is based on the PN-EN 13831 standard and has approval in accordance with the pressure equipment directive 2014/68/EU – this guarantees safety and reliability. Made of high-quality materials, with a durable epoxy coating in white, it provides an aesthetic appearance and corrosion resistance. Model S-25 has a G3/4” threaded connection, which facilitates installation in existing systems.

Key features and benefits

• High glycol resistance: the vessel membrane is resistant to glycol content up to 50%, allowing it to be used in solar installations with antifreeze fluid.
• Non-replaceable membrane: no need to replace the membrane translates to lower operating costs and simplifies servicing.
• Wide temperature range: permissible operating temperature up to 70°C and maximum system temperature of 120°C ensure versatile application.
• Safety confirmed by certificates: compliance with PN-EN 13831 and directive 2014/68/EU guarantees a high level of safety.
• Compact dimensions: height of 496 mm and diameter of 280 mm allow for easy installation even in limited space. Initial pressure of 1.5 bar ensures optimal operating conditions from the start.
• Durable construction: solid construction from high-quality materials guarantees long-lasting and trouble-free operation.
• Intended for various systems: ideal for heating, solar and cooling installations – one vessel for many applications.