Qualified ball valves must pass unified industrial safety standards. The valve body material needs pressure resistance certification; sealing components must not dissolve toxic substances for drinking water pipelines. Gas ball valves demand anti-static structures to avoid static ignition of flammable gas.Every finished product undergoes air tightness and water pressure tests to rule out internal and external leakage. The handle must have clear open/close position marks to prevent misoperation. Unqualified cheap ball valves easily crack under pressure, leading to water flooding or gas leakage risks. Purchase certified products for pipeline safety.
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