A bimetal thermostat: the first choice for many commercial and industrial applications

A bimetal thermostat is the best choice for devices requiring a durable product designed specifically for situations that involve regular exposure to high temperatures up to 550 degrees Fahrenheit, or 288 degrees Celsius. A bimetal thermostat is specially equipped with a snap acting, bimetal disc that is attached to the tip of the probe. This give the bimetal thermostat a fast response to changing temperatures and fast contact action when the preset temperature has been reached. The probes are made out of stainless steel. Glass joins with the metal seals to create hermeticity.

Bimetal thermostats are designed to withstand extreme cold temperatures

Low probe thermostats are designed to withstand extreme cold in situations where durability against hemeticity and vibration is important. They can even withstand being operating in liquid substances. Like the bimetal thermostats designed to withstand heat, these thermostats also have a snap acting, bimetal disc that is attached to the tip of the probe. The switch design and build provides shock absorption against vibration. The durability of the bimetal thermostat comes from the ability to design these devices from just about any material that is compatible with its application.

Bimetal sensors provide temperature management

The bimetal thermostat switch is also designed for temperature management. Bimetal thermostat switches can be mounted onto heat sinks. The switch reacts to increasing heat like a thermal alarm, and can pick up on ambient heat as well as heat from a specific component.

Bimetal temperature sensors are a vital part of temperature monitoring and control. The temperature is measured at the point where the two metals are fused together. If the temperature increases higher than the preset point, the sensor's voltage will begin to increase as the temperature rises.

How bimetal sensors work

A bimetal thermostat has what is commonly known as a snap acting bimetal disk. When both metals of the thermostat that are fused together are heated, the metal that expands the slowest helps slow down the movement of the disk until the metal that expands the fastest takes over. Then it quickly snaps right over the center. Now the disk is apart from the circuit which reduces the chances of damage that could result from the contacts opening and closing repeatedly.

The purpose of this reaction is for protection against fast changing temperatures. In fact, this bimetal reaction, also known as creep action, is designed to stabilize temperature fluctuations. These constant changes cause the contacts to open and close and could eventually wear them out. Keeping temperatures stabilized is another way a bimetal thermostat prevents damage to an appliance.

The evolution of thermostats

The purpose of installing thermostats in appliances is to monitor and control temperatures. You can find bimetal thermostats made from many different materials and designs. Every bimetal thermostat with a different design is meant for a different application. As technology continues to make important discoveries, bimetal thermostats are always being improved, and are becoming more and more reliable.