Diaphragm expansion vessel FLOFIX-12, 12L, 4.0/10 bar / 110°C, threaded connection G3/4" male, white RAL 9010, for DHW installations, vertical mounting. 25291

Diaphragm expansion tank for DHW and central heating systems

The Flofix-12 diaphragm expansion tank is a reliable solution for compensating for thermal expansion in closed heating and domestic hot water systems. Its construction, based on an EPDM membrane and a welded body, guarantees long-lasting and trouble-free operation. A capacity of 12 liters and a pressure range of 4.0/10 bar make it an ideal choice for both smaller and larger domestic installations.

Construction and application

The Flofix-12 tank is designed to operate in systems with a glycol concentration of up to 50%, which increases its versatility and allows it to be used in installations protected against freezing. A G3/4"M threaded connection facilitates installation and integration with the existing system. Filling with nitrogen ensures stable pre-pressure for a long time, minimizing the need for adjustment. The white color (RAL 9010) makes the tank blend aesthetically into the surroundings, and powder coating protects against corrosion.

Key features and benefits

• Durable construction: Welded body and EPDM membrane provide high resistance to corrosion and mechanical damage, which translates into a long service life.
• Wide range of applications: Possibility of use in DHW and central heating installations with glycol (up to 50%) increases the flexibility of choice for installers.
• Easy installation: G3/4"M threaded connection allows for quick and easy connection to the existing installation without the need for additional connecting elements.
• Stable pre-pressure: Filling with nitrogen ensures maintaining optimal pre-pressure for a long time, reducing the risk of failure and the need for frequent adjustments.
• Compliance with standards: The product meets the requirements of the Pressure Equipment Directive PED 2014/68/EU, which confirms its safety and high quality of workmanship.
• Stainless steel flange: Increases resistance to corrosion in areas particularly exposed to moisture and chemicals contained in water or glycol.
• Temperature resistance: Continuous operation in the temperature range of -10°C to 70°C allows the tank to be used in various environmental conditions.

The Flofix-12 expansion tank is a solid choice for professionals and users looking for a reliable solution to maintain stable pressure in a heating or domestic hot water system. Its durability, ease of installation and compliance with European standards guarantee peace of mind and efficient operation for many years of use.