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How Temperature Control Valves are Controlled
- Jul 26, 2018 -

The primary way that temperature control valves are themselves controlled is by installing a temperature sensor, typically within the hot water processing unit. When the high-temperature fluid is pumped through the system, the temperature sensors send information to a controller. This controller is set at a set point, and this will determine what actions the heat exchanger will take in changing the temperature of the fluid.

For instance, when the sensor finds that temperatures are incorrect they will send a signal to the controller which will then tell the cold water valves to open or close according to what the temperature needs to be. If the temperature is too hot, then the valve will allow more cold water to come in which decreases the overall temperature of the fluid.

In the case of a heat exchanger, hot water will run through a pipe which is surrounded by a separate pipe which houses the cold water. And while the two fluids never touch, the cold water chills the pipes enough change the temperature of the hot water which controls the overall temperature.

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In Summary

There are a variety of different control valves that are used to specify fluid transfer rates and one of these is the temperature control valve. The temperature control valve works by introducing fluids of varying temperatures which then change the overall temperature of the fluid to the desired specifications. In other cases, a heat exchanger can be used, in which the fluids never touch, but through the transfer of hot fluids in a cold pipe the temperature can be dictated.

To specify the actual temperature, a sensor will be placed in the heat transfer unit which will send messages to a controller, and this will tell the valves to open and close the valves. Keep this information in mind when considering temperature control valves and their applications.