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Suitable for Class 900 high‑pressure process pipelines, for plant maintenance, system isolation and process switching conditions. It enables visual open‑closed status indication, effectively blocks medium flow, and ensures safety for equipment maintenance and pipeline pressure‑testing operations.
Suitable for Class 1500 high‑pressure pipelines, chemical plant maintenance isolation, process flow switching and pipeline hydrostatic test scenarios. It enables clear open‑closed identification, reliable shut‑off of high‑pressure media, and meets the safety isolation requirements under severe working conditions.