Polyvinylidene fluoride (PVDF) piping materials are widely used in the construction industry due to their lightweight nature and ease of installation, which are key factors in their widespread recognition. Additionally, their thermal stability performance has garnered attention from industry professionals. It is highly necessary to conduct thermal stability tests on PVDF piping. Typically, piping materials used in cold and hot water supply systems are subjected to a static hydrostatic test for over 8,700 hours at a temperature of 110 degrees under specific pressure. The test medium conditions are also quite stringent, with water inside the pipes and air outside.

Various piping materials have different requirements for pressure resistance.

Due to the significant management intensity on PVDF pipe materials, the industry's quality requirements are also increasing. Most people agree that a 1000-hour static liquid pressure test is necessary for cold and hot water pipes. However, in international standards and the developing national standards, an 8700-hour thermal stability test is essential for all aspects. Many drainage pipes or other pipelines that transport water, such as dishwater in winter or boiled water, have a certain temperature.