A radiant actuator is an electrically driven device that controls the flow of water to a valve. They are used to control the opening and closing of valves in hydronic systems like radiant floor heating, fan coil units and radiator valves. They can be controlled using a room thermostat, programer or timer.
There are many different types of radiant electric actuators available on the market, and each has its own unique features. Some of the important factors to consider when choosing a radiant actuator are the type of mounting style, speed and load capacity, protection ratings, and more.
Mounting Method
One of the most common mounting styles for linear electric actuators is dual pivot. This involves fixing the device on both sides with a mounting pin or clevis. This allows the actuator to pivot on either side while extending and retracting, which gives applications two free pivot points when moving.
Another mounting style is a U-shaped metal piece that has holes in each end through which a mounting pin or clevis is run. This method allows the actuator to be fixed on both sides of an application, and it can also be used with a cover tube that protects the device outside.
This method of mounting an electric actuator is ideal for applications that need to be able to move large loads quickly and easily. It also makes it easier for the user to position the device.
Safety & Protection
When looking for a radiant electric actuator, it is important to look for the manufacturer's certifications and rating information. These certifications ensure that the device is safe and has high durability. You should also check for the rated load capacity and stroke length, as these are the two main things that determine how much weight can be lifted or moved by an electric actuator.
Durability
The type of material that is used to make an electric actuator and the manufacturer's design can affect its durability. For example, if the actuator is being used in a rough environment, it may need to be protected from dust or humidity. It also needs to be able to withstand extreme temperatures.
Efficiency
Energy efficiency is a major factor when it comes to electric radiant heaters and valves. This is because they have a limited amount of power that can be used and the less energy that is needed to operate the device, the more efficient it will be.
Motor Detection and Protection
If you're planning to use an electric actuator for any kind of heating or cooling, it's always a good idea to purchase a product that has built-in motor protection. This means that the device will cut off power to the motor if it detects an abnormal increase in current value or temperature. This will prevent the device from overheating and damaging itself. It will then recover when the motor's temperature decreases and it can be used again.