Please note that the API Monogram Program effective date for the this document's next edition is March 12, 2021. Until then, this edition will still be considered active and not historical.

Specification 19G2 provides requirements for subsurface flow-control devices used in side-pocket mandrels (hereafter called flow-control devices) intended for use in the worldwide petroleum and natural gas industry. This includes requirements for specifying, selecting, designing, manufacturing, quality-control, testing and preparation for shipping of flow-control devices. Additionally, it includes information regarding performance testing and calibration procedures.

The installation and retrieval of flow-control devices is outside the scope of Spec 19G2. Additionally, Spec 19G2 is not applicable to flow-control devices used in centre-set mandrels or with tubing-retrievable applications.

Spec 19G2 does not include requirements for side-pocket mandrels, running, pulling, and kick-over tools, and latches that might or might not be covered in other API/ISO specifications. Reconditioning of used flow-control devices is outside of the scope of Spec 19G2.

This edition of API Specification of API 19G2 is a modified national adoption of ISO 17078-2:2007 (Modified), Petroleum and natural gas industries-Drilling and production equipment, Part 2-Flow-control devices for side-pocket mandrels.