Expansion vessel Reflex N 50, 6 bar / 70°C, gray

Reflex N 50 is an expansion vessel for heating and hot-water systems designed to manage pressure changes in closed circuits. With a maximum operating pressure of 6 bar and a maximum temperature of 70°C, this gray vessel compensates for thermal volume changes, reduces pressure peaks and helps protect pumps, valves and piping from overpressure. Its compact design makes it suitable for residential and light commercial installations where reliable pressure management is required.

Advantages

The Reflex N 50 offers dependable pressure control in systems up to 6 bar and temperatures up to 70°C, delivering consistent compensation for thermal expansion. The diaphragm construction separates the system fluid from the precharge gas, minimising the risk of corrosion and extending component life. Its compact form factor allows installation in confined spaces and simplifies retrofits in existing heating or hot-water systems.

Suitable for

• Domestic central heating systems
• Small apartment block or light commercial heating installations
• Hot-water circulation systems with closed-loop pressure management
• Retrofit or replacement of existing expansion vessels in compact plant rooms

Key specifications

• Maximum operating pressure: 6 bar
• Maximum permitted temperature: 70°C
• Nominal volume: 50 litres
• Diaphragm-type internal separation
• External finish: gray
• Compact dimensions suitable for limited space installations

How to use

Install the expansion vessel on the system side according to system design guidelines and local regulations. Precharge the vessel to the recommended air pressure for the empty system (typically matched to the static system pressure) and connect it to the heating or hot-water circuit at the designated expansion port. Ensure all connections are leak-free and the system is bled of air after filling. Verify the operating pressure does not exceed 6 bar and that the fluid temperature remains within the 70°C limit during operation.

Usage recommendations

Check precharge pressure periodically and inspect for external damage or corrosion. When replacing an existing vessel, match the nominal volume and pressure rating to the system requirements. Follow manufacturer instructions and applicable standards for mounting, safety valves and pressure relief devices to ensure continued system protection.