The standard service life of a commercial-grade stainless steel angle valve is not defined by one simple number alone. In real projects, it depends on material quality, water conditions, installation quality, pressure stability, and how often the valve is opened and closed. In most commercial and residential plumbing systems, buyers expect a good angle valve to remain stable for many years without leakage, flow problems, or visible corrosion. That expectation is reasonable, but only when the product is selected correctly and the supply quality stays consistent.

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