Ask for advice on the valve problem of the condenser condensate pipeline
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As mentioned, why is there a gate valve downstream of the drain valve in the cooling water inlet and outlet pipeline of the cooler? Thank you very much.
Generally, the valve at this position is set up to separate the drain valve. For some more important valves that frequently operate, it is necessary to set up front and rear isolation valves so that the valve can be isolated from the system for maintenance. However, what you said is too vague. It is best to give a diagram.
Thank you. What I mean is why are there shut-off valves before and after the drain valve? It seems you have solved my problem