Description
Fluid PTC liquid heaters are advanced electric heating devices designed to efficiently and safely heat various fluids (such as air, water, and oil) using positive temperature coefficient (PTC) ceramic heating elements as their core technology.
Their core operating principle relies on the unique properties of PTC materials: at low temperatures, their resistance is low, enabling rapid startup and substantial heat generation. Once the temperature reaches its specific Curie point, their resistance increases exponentially, automatically reducing power consumption and achieving precise, automatic temperature control without external control components. This "self-limiting" feature is their core advantage.
Specification
Operating voltage: 5-240V
Insulation withstand voltage: >3750V, special insulation treatment ensures safety and reliability
Surface temperature: 30-290°C
Rated power: 500-1000W
Power density: (heating power/water contact area) approximately 4-10W / cm² (at a water temperature of 25°C)
Features
Safe and Reliable: The PTC feature eliminates the risk of dry-burning fires, making it suitable for unattended operations.
Energy-Efficient: Heat is directly transferred to the liquid, achieving thermal efficiency exceeding 95%.
Adaptable: Customizable tubing (copper, stainless steel, titanium) and power ratings allow for adaptability to various corrosive and pressure environments.
Simplified Design: The modular structure reduces product development complexity and shortens time to market.
Application
Tubular PTC liquid heaters are highly efficient heating elements that tightly integrate a PTC heating element with a metal sheath. Their unique tubular sealed structure offers excellent pressure resistance, corrosion resistance, and insulation properties, allowing them to be directly immersed in liquids for efficient heat conversion. With core advantages such as self-temperature control, dry-burn prevention, corrosion resistance, and a long lifespan, these products have been widely used in the following fields: household and commercial appliances, industrial and medical equipment, transportation, new energy, and specialized and emerging sectors.
