HITHERM Lubricant OIL

Product Description

"Hitherm oil" generally refers to a range of heat transfer fluids (thermic fluids) designed for efficient and stable operation in high-temperature industrial applications. These oils are crucial for systems where heat needs to be precisely transferred from one point to another without direct contact, offering a safer and more controllable alternative to direct heating methods like electrical heating or open flames.

Here's a breakdown of its key characteristics and uses:

Key Characteristics:

• Excellent Thermal and Oxidation Stability: This is a paramount feature. Hitherm oils are formulated to resist degradation, coking (sludge and carbon formation), and oxidation even under prolonged exposure to high temperatures. This minimizes deposits on heat exchange surfaces, ensuring consistent heat transfer efficiency and extending the fluid's lifespan.

• High Flash Point and Low Volatility: A high flash point ensures operational safety by reducing the risk of fire. Low volatility and vapor pressure prevent issues like vapor lock in circulation systems and cavitation in pumps.

• Good Heat Transfer Properties: Hitherm oils possess high specific heat and thermal conductivity, allowing for efficient transfer of large amounts of heat per unit quantity.

• Good Low-Temperature Fluidity: They often have a low pour point, ensuring proper circulation and pump function even at colder startup temperatures.

• Non-Corrosive and Non-Toxic: These fluids are typically designed to be non-corrosive to system components and generally non-toxic, enhancing safety and material compatibility.

• Derived from High-Quality Base Stocks: Many Hitherm oils are formulated from specially refined petroleum base stocks or synthetic base stocks, often fortified with performance-enhancing additives.

Common Types/Grades (e.g., HP Hytherm series):

Manufacturers like HPCL offer different grades, such as Hytherm 500, Hytherm 600, and Hytherm S, which are designed for varying operating temperature ranges and specific performance requirements. For example: * Hytherm 500: Recommended for bulk oil temperatures up to 290C. * Hytherm 600: Can handle higher bulk operating temperatures, often up to 320C. * Hytherm S: A premium synthetic-based fluid designed for even higher skin temperatures (up to 345C) and bulk temperatures (up to 330C), offering enhanced resistance to thermal cracking and oxidation.

Typical Applications:

Hitherm oils are widely used across various industries that require precise and efficient heat management, including:

• Textile Industry: For heating processes in dyeing, drying, and calendering.

• Pharmaceutical Industry: For temperature control in reactors, distillation units, and drying processes.

• Chemical and Petrochemical Industries: In chemical reactors, distillation columns, and various processing units where consistent temperature is critical.

• Paint & Varnish Industries: For heating tanks and drying ovens.

• Food Processing: For cooking, pasteurization, and other heating applications.

• Plastic Processing: In molding, extrusion, and other manufacturing processes.

• HVAC Systems: In some specialized heating and cooling applications.

• Solar Thermal Systems: For transferring heat from solar collectors.

• Power Generation: In systems that transfer heat from thermal sources to turbines.

In essence, Hitherm oil provides a reliable and efficient medium for indirect heat transfer in demanding industrial environments, contributing to improved process control, energy efficiency, and extended equipment life.