Category
Piping & Fittings
Subcategory
Specialty Piping
Applicable standards
2
Issuing bodies
1
Description
ASME B31.11 piping for slurry transport (mining, ash, concentrate).
Applicable Standards (2)
ASME — 2 standards
ASME B31.11
Slurry Transportation Piping Systems
Pipelines transporting aqueous slurries.
ASME B31.4
Pipeline Transportation Systems for Liquids and Slurries
Cross-country and in-plant pipelines for liquid hydrocarbons, LPG, ammonia, alcohols, slurries, etc.
Key requirements (7)
- Liquid hydrocarbon pipelines (crude, product, NGL, anhydrous ammonia, alcohols).
- Design factor F: 0.72 (general) — yield stress × 0.72 = max design hoop stress.
- Hydrotest: 1.25 × design pressure for 4 hours minimum.
- Pipe per API 5L; welding per API 1104.
- External coating per NACE SP0169; cathodic protection per NACE SP0169.
- MAOP = 2·S·t·F·E·T / D where E = joint factor, T = temp factor.
- Class location concept used in B31.8 not B31.4 (B31.4 single design factor).