Depending on the details of the Speedflow installation, additional accessories may be needed to comply with the water regulations.

• To be used in conjunction with Hyco Speedflow unvented water heaters
• 2 litre expansion vessel set at 3.5 bar with pressure reducing valve
• Comes with one way check valve
• Required when pressure is above 4.2 bar and hot water expansion cannot be accommodated in the pipework
• Weight of expansion vessel 1.0 kg, check valve 0.1 kg, pressure reducing valve 0.3 kg
• Height of expansion vessel 225 mm, check valve 65 mm, pressure reducing valve 73 mm