Reference profile
- Designation
- API 537
- Title
- Flare Details for Petroleum, Petrochemical, and Natural Gas Industries
- Issuing body
- API
- Current edition
- [verify]
- Status
- Library record: published; official standard status [verify].
- Category
- Safety & Relief Devices
1
Overview
Specifies requirements and provides guidance for the selection, design, specification, operation, and maintenance of flares and related combustion and mechanical components.
2
Scope & Applicability
Covers
- Flare Tips
- Pilots and Ignition Systems
- Burnback Protection
- Purge Gas
- Enclosed Flares
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.
3
Key Requirements
Lifecycle requirements
- Flare Design
- Equipment Specification
- Purchasing Flares
4
Technical Details
Specifies requirements and provides guidance for the selection, design, specification, operation, and maintenance of flares and related combustion and mechanical components.
Components: Flare Tip, Flare Pilot, Ignition System, Seal (Water/Molecular).
Where to find it in the codeRefer to the official table of contents and the sections cited by the project specification; section numbering can vary by edition.
5
Engineering Notes
- Focuses on the mechanical and combustion design of the flare equipment itself (API 521 covers the system).
6
Related Standards
- API 521
Companion or referenced standard; verify its exact relationship in the adopted edition.
- ISO 25457
Companion or referenced standard; verify its exact relationship in the adopted edition.
7
Source, Edition & Status
- Publisher
- API
- Edition Year
- N/A
- Industries
- Petrochemical, Refinery, Oil & Gas
- Content Status
- published
- 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.