Choosing centerline flange butterfly valves for engineering projects is more than price comparison. Based on API 609, ISO 5208 & GB standards, this guide covers selection rules & quality verification to avoid seal failure and parameter mismatch for reliable fluid‑control procurement.
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Choosing centerline flange butterfly valves for engineering projects is more than price comparison. Based on API 609, ISO 5208 & GB standards, this guide covers selection rules & quality verification to avoid seal failure and parameter mismatch for reliable fluid‑control procurement.
