The answer to 'how long does pressure regulator last' is that a typical residential plumbing pressure regulator will usually last 8-12 years with proper maintenance. Pressure regulators are an important component in a home's plumbing system, as they control the water pressure coming into the home and help prevent damage to pipes and appliances. Over time, the internal components of the regulator can wear out or become clogged, reducing its effectiveness.
Proper maintenance, such as regular inspections and cleaning, can help extend the lifespan of a pressure regulator. However, eventually the regulator will need to be replaced, especially if the home experiences sudden spikes in water pressure or the regulator is no longer able to maintain a consistent pressure. It's recommended to have a professional plumber inspect and service the pressure regulator every 2-3 years to ensure it is functioning properly.