zozen boiler
Home Service FAQs Boiler basics Does the boiler need annual inspection?

Does the boiler need annual inspection?

31 Dec 2021

As a kind of special equipment, industrial boiler is special and complex. Complete inspection can ensure the safety operation of the boiler.

 

The external inspection of the boiler is generally conducted once a year, the internal inspection is generally conducted once every two years, and the hydrostatic test is generally conducted once every six years.

 

For boilers that cannot be inspected internally, a water pressure test should be conducted every three years. The internal inspection and hydrostatic test cycle of the boiler in the power plant can be appropriately adjusted according to the overhaul cycle of the power plant. Only when the internal inspection, external inspection and hydrostatic test are carried out within the qualified validity period can the boiler be put into operation.

Related news View More
  • ZOZEN Boiler Supports Green Development of Enterprises in Zhejiang with Low Nitrogen Emission Advantages
    Zhejiang Province has always prioritized ecological and environmental protection as a fundamental aspect of its development, continuously promoting energy conservation, emission reduction, and green transformation in the industrial sector. In this process, ZOZEN Boiler has established itself as a reliable partner for numerous enterprises in Zhejiang by leveraging its long-standing expertise in low nitrogen emission technology. Its service cases span various fields, including chemicals, energy, t...
    30 Sep 2025
  • Specialty Lubricants Company Installs ZOZEN Boiler 4 Million Kcal Gas-Fired Thermal Oil Heater
    Recently, the 4 million kcal YQW series gas-fired thermal oil boiler introduced through the cooperation between Hangzhou Derunbao Oil Co., Ltd. and ZOZEN Boiler has been installed and is currently in the commissioning stage. Centered on the design concepts of high efficiency, intelligence, and safety, this project has had a positive impact on energy saving, consumption reduction, and optimization of plant space layout. Strong Partnership Between Hangzhou Derunbao and ZOZEN Boiler   Ent...
    23 Sep 2025
  • Under Hubei’s Environmental Policies, ZOZEN Boiler Powers Enterprises’ Green Upgrades
    In 2025, Hubei Province continues to intensify efforts in ecological and environmental protection, fully implementing the pollutant discharge permitting system and shifting from dual control of energy consumption to dual control of carbon emissions. This series of policies defines a clear pathway for the green development of industrial enterprises. Against this backdrop, ZOZEN Boiler, leveraging its technological strengths and targeted solutions, has become a key partner in the green transformat...
    16 Sep 2025

Find the Right Boiler For You

Name *

Email *

WhatsApp/WeChat

Products

Power/Capacity