Axis Fire Protection

1. Material and Construction:

   • Material: Typically made from flexible, durable thermoplastic or thermoset polymer that incorporates thermochromic pigments.
   • Construction: The tube is hollow, cylindrical, and can come in various diameters and wall thicknesses depending on the application requirements.

2. Thermochromic Properties:

   • Color Change: The tube is red at lower temperatures and changes to a different color (often transparent or another predetermined color) when the temperature exceeds a specific threshold.
   • Temperature Range: The exact temperature at which the color change occurs can vary, commonly ranging from 37°C (98.6°F) to 65°C (149°F), depending on the formulation of the thermochromic pigment used.

3. Applications:

   • Safety Indicators: Used in applications where visual temperature monitoring is crucial, such as in electrical wiring, HVAC systems, and refrigeration units.
   • Educational Tools: Employed in science experiments and educational demonstrations to visually show the effects of temperature changes.
   • Consumer Products: Integrated into items like baby bottles, kettles, and cookware to indicate when contents are hot.

4. Advantages:

   • Immediate Visual Feedback: Provides a quick and easily understandable visual indication of temperature changes.
   • Non-invasive: Allows for temperature monitoring without direct contact with the heat source, preserving safety and hygiene.

5. Usage Instructions:

   • Installation: The tube can be cut to the desired length and installed over wires, pipes, or other surfaces where temperature monitoring is needed.
   • Maintenance: Requires minimal maintenance; however, it should be periodically checked for color change consistency to ensure the thermochromic properties remain functional.

6. Safety and Handling:

   • Non-Toxic: Generally made from non-toxic materials, making it safe for a wide range of applications.
   • Durability: Designed to withstand repeated temperature cycles without degrading in performance.

Heat-sensitive tubes, also known as fusible links or temperature-sensitive tubing, are devices used in various safety and control applications to detect and respond to high temperatures. Here's a detailed description of their components, functions, and uses:

1. Material: Heat-sensitive tubes are typically made from materials that have predictable melting points. Common materials include alloys, polymers, or specialized waxes.
2. Coating: Some tubes may have coatings to enhance their sensitivity or to protect them from environmental factors.
3. Diameter and Length: The dimensions of these tubes can vary widely depending on the specific application and required sensitivity.

The primary function of heat-sensitive tubes is to act as a trigger mechanism in response to elevated temperatures. When the ambient temperature reaches a certain threshold, the material of the tube melts or deforms, causing a mechanical or electrical change in the system.

1. Fire Suppression Systems: In fire suppression systems, heat-sensitive tubes are used to detect fire and trigger the release of extinguishing agents. When the tube bursts due to heat, it activates a valve or switch to release water, foam, or gas to suppress the fire.
2. Thermal Protection: In industrial applications, these tubes can provide thermal protection by shutting down equipment when overheating is detected, preventing damage and accidents.
3. Automotive Safety: In some vehicles, heat-sensitive tubes are used in systems designed to prevent overheating of the engine or other critical components.
4. HVAC Systems: Heating, ventilation, and air conditioning systems sometimes utilize heat-sensitive tubes to control temperature regulation mechanisms, ensuring safety and efficiency.

1. Linear Heat Detection Cable: A specialized type of heat-sensitive tube used in fire detection systems. It detects heat along its entire length and triggers an alarm when a specific temperature is reached.
2. Fusible Links: These are small devices often found in fire dampers and sprinkler systems. They melt at a pre-set temperature to allow the damper to close or the sprinkler to activate.

1. Precision: Can be designed to melt or activate at specific temperatures, providing reliable and predictable performance.
2. Simplicity: Often more straightforward and less expensive than electronic sensors.
3. Durability: When made from robust materials, these tubes can withstand harsh environments and long-term use.

1. Temperature Range: Ensure the tube is suitable for the expected temperature range of the application.
2. Material Compatibility: The material of the tube must be compatible with the environment it will be used in to prevent premature failure.
3. Maintenance: Regular inspection may be necessary to ensure the tubes remain in good condition and function correctly in an emergency.