zozen boiler
Home Service FAQs FAQ of thermal oil heater Is there a minimum flow requirement for a thermal oil heater?

Is there a minimum flow requirement for a thermal oil heater?

05 Jan 2024

Yes, there is typically a minimum flow requirement for a thermal oil heater, and it's a crucial factor for the safe and efficient operation of the system. Thermal oil heaters, also known as thermal fluid heaters, use a special heat transfer fluid in a closed loop system to transfer heat to a process or heating application. The minimum flow requirement is essential for several reasons:

Preventing Overheating: Ensuring a minimum flow rate is critical to prevent the thermal oil from overheating. If the flow rate drops below the minimum, the oil can quickly reach excessive temperatures, leading to thermal degradation of the oil, formation of sludge, and potential safety hazards.

Maintaining Heat Transfer Efficiency: Adequate flow rate is necessary to maintain efficient heat transfer. Insufficient flow can lead to poor heat transfer and reduced system efficiency.

Preventing Hot Spots: Proper flow ensures uniform heat distribution and prevents hot spots in the heater, which can damage the heater coils and the thermal oil.

Protecting the Pump: Ensuring the minimum flow also protects the circulation pump. Low flow rates can cause cavitation and damage the pump.

The specific minimum flow requirement depends on the design and capacity of the thermal oil heater. It's usually determined by the manufacturer based on factors such as the type of thermal oil used, the heater design, the maximum operating temperature, and the heat transfer characteristics.

It's crucial to refer to the manufacturer's guidelines or consult with a heating system engineer to understand the minimum flow requirements for your specific thermal oil heater. Additionally, installing flow meters and proper control systems can help monitor and maintain the required flow rate to ensure safe and efficient operation.

Related FAQs View More
Related news View More
  • ZOZEN Boiler in Shandong: Innovative Boiler Models Empower Diverse Production
    On the thriving industrial land of Shandong, the continuous demand for thermal energy supply from enterprises drives the transformation of the boiler industry. With profound technical expertise and ongoing innovation, ZOZEN Boiler remains at the forefront of providing high-quality, adaptable boiler models for various industries.   ZOZEN Boiler Provides Tailored Boiler Solutions for Shandong Industries   Looking back, the cooperation projects with Shandong Luhua Group and Shandong...
    29 Jul 2025
  • ZOZEN Gas Water Tube Boilers Make a Strong Entrance on Cable Industry
    In the industrial zone of Wen’an County, Xinghua Cable Co., Ltd. is making steady progress on its project with an annual production capacity of 11 million meters of wires, cables, and accessories, backed by an investment of RMB 520 million. Upon completion, the project is expected to create over 150 jobs and generate annual sales revenue of RMB 800 million, demonstrating promising prospects. As a key supplier of thermal energy equipment, ZOZEN Boiler is quietly supporting the development o...
    22 Jul 2025
  • ZOZEN Boiler Facilitates Power Plant “Oil-to-Gas” Upgrade
    On March 20, 2025, the Guizhou Jinyuan Zhijin “Replacing Small Units with Large Ones” Relocation Project (2×660 MW), under State Power Investment Corporation, successfully achieved the first ignition of its boiler. This project replaced traditional oil-fired ignition fuel with liquefied natural gas (LNG), setting a new precedent for employing clean energy in 660 MW ultra-supercritical “W” flame boilers. As a key equipment supplier for this project, ZOZEN Boiler prov...
    15 Jul 2025

Find the Right Boiler For You

Name *

Email *

WhatsApp/WeChat

Products

Power/Capacity