I. Thread Standards
According to the information, what standard should be followed for threads on threaded pipes, fittings, flanges, and valves?
Explanation: Threads for threaded pipes, fittings, flanges, and valves should be in accordance with B1.20.1 taper threads.
II. Temperature Consideration
What is the recommended method for making threaded joints up to 204 °C?
Explanation: Up to 204 °C, threaded joints should be made with 1″ width PTFE joining tape.
III. High Temperature Joints
What is the recommended method for making threaded joints above 204 °C?
Explanation: Above 204 °C, threaded joints should be seal welded with a full-strength fillet weld.
IV. Safety Measures
What precaution is recommended for threaded joints on lines carrying toxic fluid, regardless of pressure and temperature?
Explanation: All threaded joints on lines carrying toxic fluid shall be seal welded with a full-strength fillet weld.
V. Hydrostatic Vents
What action is recommended for threaded plugs on hydrostatic vents that are not provided with a valve?
Explanation: Threaded plugs on hydrostatic vents not provided with a valve shall be seal welded after testing has been carried out.
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