Thermostatic actuators convert temperature change into motion. The technology utilized in our thermal actuators is referred to as “phase change” technology. At the heart of each of our products is a highly refined paraffin wax that changes phase from solid-to-liquid, on increasing temperature, and from liquid-to-solid, on decreasing temperature.
ThermOmegaTech® has incorporated this technology into the Thermoloid® material that makes all our thermostatic valves operate. At the heart of each of our products is a phase-changing wax that expands and contracts at an accurate and repeatable rate. The phase change properties are so precise that they are used as primary reference standards by ASTM for instrument calibration.
How it Works
The Thermoloid® material is sealed inside our actuators, and as temperature increases above the melting point of the Thermoloid® material, it expands in volume and pushes against a diaphragm, which in turn pushes on a piston. The piston, now in its “hot position” acts as a valve stem, opening or closing the valve. As the Thermoloid® material cools below its melting point, it compresses and a spring returns the piston and diaphragm to their “cold position”.
The phase change, and resulting large volume change, produce motion over a narrow and highly predictable temperature range, and the temperature range at which the phase change occurs can be varied depending on the chemical composition of the Thermoloid® material that is used.
Our Thermoloid® material operates at temperatures ranging from 15°F to 300°F (-9.44°C to 149°C). We offer Direct Acting Valves which are designed to be open when the actuator is in the “cold position” and Reverse Acting Valves which are open in the “hot position”.
As the world leader in self-actuated temperature control solutions, ThermOmegaTech® prides itself on the high-quality manufacturing process, problem-solving approach and innovative engineering techniques used to build and manufacture self-actuated valves and specialty products that leverage proven technological methods.
Our self-actuating thermostatic technology is an elegant solution, proven highly reliable in various applications, whether in one of our current products or a design customized by our in-house engineering team to meet a customer’s unique needs.
Our product offering includes the following temperature sensing valves:
- Balancing Valves for Domestic Hot Water Systems
- Drain valves for Locomotives
- Drain valves for Passenger Cars
- Drain Tempering Valves
- Freeze Protection Valves
- Heat Activated Traps
- High Temperature Shut Off Valves
- Hosedown & Washdown Stations
- Instrumentation Protection Valves
- Mechanical Seal Flush Valves
- Mixing and Diverting Valves
- Scald Protection Valves
- Steam Tracing Valves
- Steam Trap Valves
- Tepid Water Delivery Systems for Safety Showers/Eyewash Stations
- Thermal Actuators
- Thermal Bypass Valves
- Thermal Relief Valves