6a 21st Edition Pdf Link | Api Specification
API documents evolve. The 21st Edition (officially titled API Spec 6A – Specification for Wellhead and Tree Equipment, 21st Edition ) was released in and became effective in November 2019 . It supersedes the 20th Edition.
: Tubing head adapters are now better integrated into overall head requirements, and slip vs. mandrel hangers are clearly defined as separate products. Metric & Imperial Parity api specification 6a 21st edition pdf link
Disclaimer: Prices and publication statuses are accurate as of this writing but subject to change by API. Always refer to API’s official website for the latest errata or reprint dates. API documents evolve