Is it necessary to install dual valves at the inlet and outlet of the ammonia tank?
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Generally speaking, where are those places that require dual valves?
It is used in areas where manual adjustment is frequently required; one valve serves as the operating valve and the other as the root valve. If the operating valve fails, the root valve can be closed to allow for replacement.
For the inlet and outlet material pipelines of our ammonia tanks, as well as the drain valves, dual valves are used, whereas dual valves are not employed for the root valves of the level gauges and safety valves; these still use single valves.
Toxic or corrosive materials should be equipped with double valves as a precaution.
Dangerous pipelines, as well as those that are relatively important, require dual-valve safety systems
I agree with what was said on the 2nd floor. However, the medium also needs to be taken into consideration; for media that pose a high risk, such as those that are flammable, explosive, or toxic, double valves should be installed in places where the valves need to be operated frequently.
Dual valves need to be installed; generally, dual valves are required for important pipelines as well as those that pose a high risk, such as steam lines.