Ariston / Chaffoteaux Diaphragm Part No: 60025809-30

• When the hot water supply is opened, the diaphragm moves in response to the pressure difference to help divert the water.
• Diaphragms can be punctured if they are not checked frequently and this can be harmful for the boiler.
• The diverter valve is a part that only appears in combi boilers. It allows the hot water to be guided to the central heating (radiators, etc.) or to the domestic hot water system (taps, etc.).
• This feature is what makes a combi boiler so popular due to the diverter valve allowing use of hot water and heating without the need for a cylinder.

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