The Vaillant pressure relief valve helps to control pressure build-up within a closed system. It is set to release water if the pressure is too high to ensure the pressure doesn't reach a dangerous level..
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Technical Specifications
ERP (Energy Efficiency)NTypeTemperature and Pressure Relief ValveERP RatingNot ApplicableSupplier Part Number20009866Brand NameVaillant
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Vaillant Temperature and Pressure Relief Valve 0020009866