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Pressure limiting valves are fitted in water systems to prevent over pressure conditions. When installed to a hot water system the PLV main purpose is to limit the inlet pressure to a controlled pre-set Maximum. The valve remains in the open position if the pressure in the supply line falls below the pre-set maximum pressure. PLV can also be used with domestic appliances such as dishwashers, water filters and mixer taps to prevent any damage that may be caused by excessive inlet supply pressure and pressure spikes.
Revised 23/09/2023