Pick out the wrong statement?

Process Equipment and Plant Design 04/11/2020

A. Safety valves are provided in heat exchangers for removal of non-condensable
B. Liquid metals and Dowtherm are used for very high temperature heating
C. In a shell and tube heat exchanger, high pressure fluid is generally routed through the tube
D. A loop seal or U-seal is provided in a vertical condenser sub-cooler to prevent quick draining
of the condensate

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