Home > Product > Ball Valve > Certifications & Approvals > API 6D Standard for Ball Valves
When it comes to pipeline ball valves, safety, reliability, and regulatory compliance are non-negotiable. That’s where the API 6D standard comes in—a globally accepted specification from the American Petroleum Institute for ball valves used in oil & gas transmission, distribution, and refinery pipelines.
At Perfect Engineers, our API 6D-compliant ball valves are engineered to meet the toughest demands of high-pressure, high-volume, and high-integrity pipeline operations across global markets.
API 6D is the American Petroleum Institute’s specification for pipeline valves including:
It defines the design, manufacturing, testing, and documentation requirements for valves used in pipeline transportation systems for petroleum and natural gas industries
| Feature | API 6D Requirement |
|---|---|
| Design | Full or reduced bore, trunnion or floating design |
| Sealing | Soft-seated (PTFE) or metal-seated (for fire-safe use) |
| Fire-Safe Certification | API 607 or ISO 10497 compatible |
| Testing | Hydrostatic, shell, seat leakage, backseat, and air test |
| Operation | Manual, gear, electric, pneumatic, or hydraulic actuators |
| Double Block & Bleed | DBB or DIB1/DIB2 types available |
| Drain/Vent Ports | Required for maintenance and safety |
| Design Pressure Classes | ANSI Class 150, 300, 600, 900, 1500, and 2500 |
| Documentation | Full DQ/IQ/OQ, MTC, QA checklist, Hydro test report |
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| Valve Type | Details |
|---|---|
| Trunnion Mounted Ball Valve | Ideal for high pressure (Class 600+) |
| Double Block & Bleed (DBB) | Primary & secondary seal + bleed |
| Top Entry Ball Valve | Inline maintenance and quick access |
| Fully Welded Ball Valve | Tamper-proof, ideal for buried pipelines |
| Flanged or Butt Welded Ends | ANSI/DIN/JIS options |
Yes—API 6D valves come with ISO 5211 actuator mounting, and can be equipped with pneumatic, electric, or hydraulic actuators.
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