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| Chinese National Standard Category: Valve |
| English Title: | Pilot operated safety valves |
| Chinese Title: | 先导式安全阀 |
| Standard No.: | GB/T 28778-2023 |
| Category No.: | J16 |
| Issued by: | SAMR; SAC |
| Issued on: | 2023-9-7 |
| Implemented on: | 2024-4-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | GB/T 28778-2012 Pilot-operated safety valves |
| Word Count: | 8500 words |
| Similar Standards: | GB 7512-2023/XG1-2025 GB/T 12236-2025 GB/T 12229-2025 GB/T 12233-2025 GB/T 12221-2025 GB/T 12245-2025 GB/T 12226-2025 GB/T 12246-2025 GB/T 12232-2025 GB/T 12227-2025 GB/T 12235-2025 GB/T 12244-2025 DB15/T 3517-2024 GB/T 44519-2024 GB 8465.2-1987 GB 8465.5-1987 GB 8465.6-1987 GB 8465.7-1987 GB 8465.3-1987 GB 8465.4-1987 |
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