Tailored for sealed heating and chilled-water circuits, the Flamco Contraflex Expansion Vessel stabilises system pressure in accordance with EN 12828 using a durable rolling-diaphragm design.

A nitrogen pre-charge maintains set pressure for longer, while each vessel is factory tested for reliability. The flexible rubber diaphragm's rolling action delivers smooth expansion control across demanding duty cycles.

Tailored for sealed heating and chilled-water circuits, the Flamco Contraflex Expansion Vessel stabilises system pressure in accordance with EN 12828 using a durable rolling-diaphragm design.

A nitrogen pre-charge maintains set pressure for longer, while each vessel is factory tested for reliability. The flexible rubber diaphragm's rolling action delivers smooth expansion control across demanding duty cycles.

Store and deliver mains-pressure hot water with Flextherm Supastor Indirect Unvented Cylinders—compact, high-performance stainless-steel vessels for closed potable systems.

Designed to UK specs with neat in-line connections, each cylinder is supplied complete with controls, including a 2-port motorised valve, for quick, compliant installation in domestic or commercial plant rooms.

• Application: domestic and commercial potable hot/cold water storage
• Design: indirect, unvented cylinders for closed-circuit water supply
• Connections: compact layout with in-line tappings for easy install
• Controls included: full kit with 2-port motorised valve
• Material: Stainless Steel DUPLEX LDX 2101 (EN 1.4162)
• Performance limits: max working pressure 6.0 Bar; max working temperature 90 °C
• Efficiency: economical running with rapid heat-up and recovery