Category
Valves
Subcategory
Pipeline Valve
Applicable standards
4
Issuing bodies
2
Description
Pipeline ball, gate or check valve per API 6D for transmission pipelines.
Applicable Standards (4)
API — 3 standards
API 6D / ISO 14313
Pipeline and Piping Valves
Ball, check, gate, and plug valves for pipeline service.
Key requirements (7)
- Pipeline valves — ball, gate, check, plug for liquid and gas pipelines.
- Pressure classes: ASME B16.34 (150–2500) plus API-specific (10000 / 15000 psi).
- Full-bore (full opening) — passes pipeline pig with min restriction.
- Fire-safe per API 6FA / ISO 10497.
- Anti-static device required (ball/stem ground continuity).
- Double Block & Bleed (DBB) and Double Isolation & Bleed (DIB) configurations.
- Cavity over-pressure relief required (self-relieving seat or cavity vent).
API 6FA
Fire Test for Valves
Fire-type testing of valves to demonstrate fire-safe performance.
API 622
Type Testing of Process Valve Packing for Fugitive Emissions
Type testing of valve stem packing material for fugitive emission performance (low-E packing).
Key requirements (7)
- Type testing of process valve packing for fugitive emissions.
- Test temperature: 260 °C (500 °F) typical.
- Test cycles: 1510 mechanical cycles + 5 thermal cycles.
- Leakage acceptance: ≤ 100 ppmv methane (or per spec).
- Materials qualified: graphite, PTFE, flexible-graphite die-formed.
- Mating shaft surface finish: typically Ra ≤ 0.4 µm (16 µin).
- Drives selection of low-emission packing for VOC service.
ISO — 1 standard
ISO 14313
Pipeline transportation systems — Pipeline valves
International equivalent of API 6D for pipeline valves.