Certification is the first filter buyers use when evaluating valve suppliers. Without the right certifications, your product won't even reach the technical evaluation stage. Here's what you need to know about the two most critical standards.
API Spec 6D is the international specification for pipeline valves, published by the American Petroleum Institute. The 25th edition was released in 2026 and defines manufacturing requirements for gate, ball, check, and butterfly valves used in oil and gas pipeline transportation. API 6D covers pressure classes from 150 to 2500 and is widely accepted by EPC (Engineering, Procurement, Construction) contractors globally [1].
API 6D focuses on pipeline valves—gate, ball, check, and butterfly—with tight sealing requirements essential for petroleum applications. The standard ensures valves can withstand high-pressure conditions while maintaining leak-free performance [1].
ISO 17292:2015 specifies requirements for metal ball valves used in petroleum, petrochemical, and natural gas plants. The standard was reconfirmed in September 2025 and remains valid through 2026. It covers pressure classes 150-2500 (PN 16-100) and nominal sizes DN 8-600, with temperature ranges from -29°C to +200°C [2].
API 6D vs ISO 17292: Key Differences at a Glance
| Feature | API 6D | ISO 17292 |
|---|
| Scope | Pipeline valves (gate, ball, check, butterfly) | Metal ball valves for petroleum applications |
| Pressure Classes | 150-2500 | 150-2500 (PN 16-100) |
| Size Range | Various, pipeline-focused | DN 8-600 |
| Temperature Range | Application-dependent | -29°C to +200°C |
| Primary Market | North America, Middle East, global pipelines | Europe, Asia, general industrial |
| Testing Requirements | Pipeline-specific pressure testing | General industrial testing protocols |
| Certification Body | American Petroleum Institute | International Organization for Standardization |
Many buyers require both certifications for maximum market access. Southeast Asian manufacturers serving global buyers should consider dual certification to expand addressable markets.
Beyond API and ISO, buyers may also require: CE/PED for European markets, NACE MR0175 for sour service (H2S-containing environments), and API 607/6FA for fire-safe certification. The specific combination depends on the end application and destination market [6].