Why is only the valve of this pipeline insulated?
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What is the purpose of such insulation design, as shown in the figure?
I guess it’s due to damaged valve protection, damage from impact, or something similar. Alternatively, at the valve connections, to prevent leakage of the medium.
I guess the valve protection is damaged or the material of the valve is of poor quality
Is this for preventing leaks of toxic and harmful substances?
Fish Boss, what should the answer be? .
I don’t know the answer either. I saw it online; it seems to be the location where the buried pipe emerges. Is it to prevent the valves from getting damaged by freezing?
It won’t get frozen damage; otherwise it would be completely covered. Moreover, this material is clearly not insulating – it’s like putting a shield around the valve. This is the first time I’ve seen something like this either; it must be related to the medium used, to prevent leaks from the valves. The medium is probably toxic or valuable ； Or high pressure inside the pipe. Additionally, this has dual valves, which also serve as a double safety mechanism.
Valves with diaphragm structures can be used for toxic media. . I don’t quite understand,,
It shouldn’t be a toxic medium; toxic substances certainly can’t be transported underground
To prevent the leakage of toxic substances, does wearing a vest suffice? If it is a toxic medium, the valve must not be covered; otherwise, leaks will go unnoticed