These valves have an external sensor that opens and closes the valve based on temperature changes in your tank or pipeline. Adjust the set temperature within the range. Body is bronze for durability and a long service life.

Dial thermometers display the sensor temperature. The dial can be rotated for easy viewing.

Valves that are closed until temperature rises are also known as reverse-acting valves. They’re commonly used to cool oil or water from heat exchangers, chillers, and compressors. As the temperature in your tank or pipeline rises to the set temperature, the valve opens to let in cold water or oil. When the tank or pipeline temperature cools to the set temperature, the valve closes again.

Valves that are open until temperature rises are also known as direct-acting valves. They’re often used with boilers and steam tables in washing and sterilizing applications. As the temperature in your tank or pipeline rises to the set temperature, the valve closes. As the tank or pipeline temperature falls below the set temperature, the valve opens again to let in hot water or steam.

Optional thermowells (sold separately) protect the sensor from pressure, shock, and corrosion in tanks and pipelines. They also isolate the contents of your process so the sensor can be removed without stopping flow or draining the system.

316 stainless steel thermowells are more corrosion resistant than brass thermowells.