SEV Swing check valve is designed in accordance with API 6D, applied to oil and gas transmission pipelines, to prevent medium backflow. The fully open design can meet the requirement of cleaning ball passing, convenient pipeline maintenance.
| Content | Specification |
| Design and manufacturing | ASME B16.34/API 6D |
| Face to face dimension | API 6D/ASME B16.10/Customer requirement |
| Connection type | Flange ends, BW |
| Inspection and test | API 598/API 6D/ISO 5208 |
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