# Wrinkle Bends in Steel Pipe

**Citation:** 192.315  
**Type / status:** regulation / current  
**Agency:** Arkansas Public Service Commission  
**Effective:** Not stated  
**Published:** Not stated

§ 192.315 Wrinkle Bends in Steel Pipe (a) A wrinkle bend may not be made on steel pipe to be operated at a pressure that produces a hoop stress of 30 percent, or more, of SMYS. (b) Each wrinkle bend on steel pipe must comply with the following: (1) The bend must not have any sharp kinks. (2) When me

## Document text

§ 192.315 Wrinkle Bends in Steel Pipe (a) A wrinkle bend may not be made on steel pipe to be operated at a pressure that produces a hoop stress of 30 percent, or more, of SMYS. (b) Each wrinkle bend on steel pipe must comply with the following: (1) The bend must not have any sharp kinks. (2) When measured along the crotch of the bend, the wrinkles must be a distance of at least one pipe diameter. (3) On pipe 16 inches (406 millimeters) or larger in diameter, the bend may not have a deflection of more than 1 1/2° for each wrinkle. (4) On pipe containing a longitudinal weld the longitudinal seam must be as near as practicable to the neutral axis of the bend.

## Provenance

- Official: Yes
- Source: <https://codeofarrules.arkansas.gov/Rules/Rule?chapterID=40&levelType=part&partID=1394&subChapterID=392&titleID=23>
- Source ID: `ar-car-pipeline-safety`
- SHA-256: `443d1da3ab863238b79f766b75539a6b9c36b2b129649914b291ddbbdff4bf09`
- Retrieved: 2026-08-12T08:10:37.612Z
- Exported: 2026-08-24T14:16:36.729Z
- Document slug: `ar-car-23-500-192-315`

### Source metadata

```json
{
  "jurisdiction": "US-AR",
  "subject": "intrastate-gas",
  "caveats": {
    "exactScope": "The searchable corpus contains every current numbered section, the code-wide definitions, and every operative appendix in official 23 CAR Part 500, plus direct pipeline rules 15 CAR sections 275-406 and 275-504. Reserved and removed provisions are inventory-only.",
    "excludedScope": "This is not all Arkansas pipeline law. Standalone statutes, dockets and orders, one-call law, utility rates and service, siting, environmental permits, highway crossings, local law, forms, and incorporated third-party standards are excluded. Other current AOGC gas and transportation rules are inventoried as adjacent production, conservation, storage, or fluid-transport material.",
    "applicabilityCaveat": "APSC administers certified intrastate gas safety downstream of producer custody transfer. AOGC section 275-406 separately reaches specified producer or producer-affiliated natural-gas systems. AOGC section 275-504 imposes state permitting and operational duties on specified hazardous-liquid pipelines, but PHMSA states that it directly inspects and enforces intrastate hazardous-liquid pipeline safety in Arkansas. Inclusion does not establish applicability to a particular facility.",
    "incorporationCaveat": "AOGC sections 275-406 and 275-504 use dynamic 'as amended' wording for federal Parts 190, 191, 192, 195, and 199. Part 500 is a state code that reproduces and modifies federal-derived gas provisions. References and relationship records do not substitute a retrieval-date federal text or decide the legal effect of incorporation.",
    "publicationCaveat": "The Code of Arkansas Rules identifies its online database as the official version, effective as a publication system January 1, 2025, updated weekly, and potentially behind recent agency rulemaking. The official Part 500 page reports Ark. R. 2026-6 effective January 8, 2026; its PDF is headed August 22, 2025 and Docket 25-025-R. Retrieval and site-update dates are publication observations, not inferred legal effective dates for every section.",
    "rights": "Official Arkansas and federal government artifacts are archived with attribution and SHA-256 provenance. Public access does not settle rights in seals, site presentation, forms, incorporated standards, or third-party material; downstream redistribution requires separate review."
  },
  "rightsReviewRequired": true,
  "references": [],
  "codePart": "23 CAR pt. 500",
  "partEffectiveOn": "2026-01-08",
  "partEffectiveDateNotImputedToIndividualProvision": true,
  "federalDerivedStateCode": true,
  "sourceCollection": "ar-car-23-part-500",
  "region": "AR"
}
```