This standard specifies the contents and requirements for the operation, maintenance and overhaul of valves used in oil and gas pipelines, and lists the judgment and cause analysis of common faults. This standard applies to all valves on oil and gas pipelines except small-diameter valves, regulating valves, self-operated pressure regulating valves and safety valves in equipment accessory systems.
SY/T 6470-2011 Referenced Document
API Std 598 Valve Inspection and Testing*, 2023-02-01 Update
GB/T 12224 General requirements for industrial steel valves*, 2015-12-10 Update
JB/T 8528 Technical specification for electric unit of common valves
SY/T 4102 Specification for inspection and installation of valve*, 2013-11-28 Update
SY/T 6470-2011 history
2011SY/T 6470-2011 Regulation for operation maintenance repair of general purpose valve in oil and gas pipeline
2000SY/T 6470-2000 Code for operation maintenance repair of general purpose valve in oil and gas pipeline