Nuclear power
During the system installation and commissioning phases of both the nuclear island and the conventional island, all nuclear‑class and non‑nuclear‑class safety valves shall undergo comprehensive pre‑fuel‑load verification and set‑point adjustment. In addition, in-service safety valves must be subjected to mandatory offline verification to ensure safety throughout the next operating cycle.
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Hydrogen energy
It primarily serves hydrogen refueling station construction projects and R&D and testing initiatives for hydrogen storage and transportation equipment. It provides pre‑commissioning calibration of safety valves for core components of hydrogen refueling stations, including hydrogen compressors, hydrogen storage cylinder banks, and dispensers.
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Aerospace
It is primarily used in model development and testing programs, as well as in aircraft overhaul and scheduled inspection projects. During ground tests of rocket engines, spacecraft life-support systems, and other equipment, relevant safety valves are calibrated and verified. In the civil aviation sector, safety valves in hydraulic, pneumatic, and fuel systems are inspected and certified in accordance with airworthiness regulations.
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Petrochemicals
It is the most widely applied, spanning new integrated refining and petrochemical projects, annual major unit overhauls, and routine operations and maintenance activities.
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Biopharmaceuticals
It primarily serves compliance‑validation projects and new‑build or retrofit production‑line projects. It also conducts periodic verification of safety valves on equipment in aseptic production areas, including fermenters, formulation systems, and clean steam systems.
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General Industry
This is primarily reflected in public inspection and calibration services, as well as enterprise‑level safety standardization projects. Special‑inspection institutes, third‑party testing organizations, or internal calibration centers of large enterprises undertake the periodic mandatory calibration of various boilers, pressure vessels, and safety valves attached to pipelines within their respective regions.
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