Reference profile
- Designation
- API 612
- Title
- Special-Purpose Steam Turbines for Petroleum, Chemical, and Gas Industry Services
- Issuing body
- API
- Current edition
- [verify]
- Status
- Library record: reviewed; official standard status [verify].
- Category
- Rotating Equipment
Overview
Requirements for special-purpose (critical, unspared) steam turbines driving major compressors and generators.
Scope & Applicability
Covers
- Rotordynamics
- Blading
- Control & protection
- Lube oil
- Mechanical run test
Does NOT cover (exclusions)
- Exclusions are not documented in this library record. Confirm the official publication, neighbouring codes, the adopted edition, and jurisdictional boundaries before application.
Key Requirements
Lifecycle requirements
- Critical turbine driver specification
- Compressor train drivers
Technical Details
Requirements for special-purpose (critical, unspared) steam turbines driving major compressors and generators.
Components: Rotor, Blading, Governor, Lube oil system, Bearing.
Engineering Notes
- Applies to critical unspared drivers requiring rotordynamic analysis and full mechanical run testing.
Related Standards
- API 611
Companion or referenced standard; verify its exact relationship in the adopted edition.
- API 614
Companion or referenced standard; verify its exact relationship in the adopted edition.
- API 670
Companion or referenced standard; verify its exact relationship in the adopted edition.
- ISO 10437
Companion or referenced standard; verify its exact relationship in the adopted edition.
Source, Edition & Status
- Publisher
- API
- Edition Year
- N/A
- Industries
- Refinery, Petrochemical, Oil & Gas
- Content Status
- reviewed
- Last Reviewed
- 2026-07-01
- Last Updated
- 2026-07-01
- Verified By
- Engineering Reviewer
- Official Link
- N/A
This paraphrased summary is a discovery aid. Do not reproduce or substitute it for the copyrighted official publication or jurisdictional requirements.