Which abbreviation is used for Temperature Valve?

• A. TV
• B. FV
• C. FT
• D. TE

Answer: (B)

In control loops, the device that directly alters the process to bring the variable to setpoint is called the final control element, usually a valve. The abbreviation FV is used to designate this final control valve, which is the component that actually modulates the process to achieve the desired temperature. That’s why FV fits for a Temperature Valve: it marks the valve that finalizes the temperature control action.

Other options aren’t the standard tag for the valve in this context. TV would read as a Temperature Valve, but it isn’t the common designation used in instrumentation diagrams or practice here. FT and TE typically refer to other components (such as transmitters or temperature sensing elements), not the final control valve.