VALVE & FLOW-CONTROL BRIEF
API standards plan lists API 609 tenth edition
Adapted from：API · independently rewritten and edited by VALVE.ME
API's standards plan lists a tenth-edition milestone for its butterfly-valve standard, prompting edition checks in project specifications.
Industry desk analysis
A new edition does not automatically change existing contracts; new projects should confirm the edition, addenda and errata during clarification.
Editorial note
This article is independently rewritten from a public primary source, not copied in full. VALVE.ME adds context for valve procurement, technical selection and supply-chain decisions.