Hot Oil Systems

Expansion and Drain Structure

The provisions made for thermal expansion and draining of thermal oil is a key factor to consider for the successful installation of a thermal oil heating system.

Contents Covered:

  • Expansion Volume
  • Degassing the system

  • Fluid degradation prevention

  • Drain tank sizing


Fill out the form to download your copy.

Hot Oil Systems


Our Company Customer Service

Our Company

Inside Sigma Thermal

Watch our corporate video. Get an inside look at our manufacturing facility and meet the team behind our products and services. Whether you need new equipment, service, technical support, training, parts, or retrofits, Sigma Thermal has you covered.

Learn More

Our Blog

Understanding Thermal Fluids & Thermal Fluid Systems

Thermal Fluid Management • Advantages of Thermal Oil Heating Systems Types of Thermal Fluid Heaters • Work With Sigma Thermal The demand for process...


Industrial Process Heating Methods

Process heating systems deliver heat to liquid, gas, and solid materials in various industrial settings. Depending on the application, multiple types of heating methods...