Glass piping quality appraisal

Glass pipes generally refer to pipes made of glass materials, and they can be used in a variety of industrial and laboratory applications. Glass pipes have advantages in specific application scenarios due to their unique physical and chemical properties. Glass is generally very resistant to most chemicals and is not prone to chemical reactions, making it suitable as a conduit for conveying corrosive or acidic substances.
glass pipes are widely used in petroleum, chemical and drainage industries. In the case of glass pipe quality appraisal, Zhongke Testing can provide glass pipe quality appraisal services.

Common glass pipes include FRP process pipes, FRP sand-filled pipes, FRP water pipelines, FRP sewage pipes, etc.

GB/T 40236-2021 Borosilicate glass pipes
GB/T 19738-2005 Glass equipment, pipes and fittings - glass equipment components
GB/T 21409-2008 General rules for inspection, installation and use of glass equipment, pipes and fittings
GB/T 21408-2008 Glass equipment, pipes and fittings Universality and interchangeability of 15mm~150mm diameter pipes and fittings

During construction, a cannery reached an agreement with its supplier to purchase a batch of inorganic glass ventilation ducts and accessories. After being used for a period of time after installation, the manufacturer discovered that there were cracks at the connection between the pipe and the wall air inlet, and there were also many cracks and bulges on the inner wall of the air duct, which seriously affected the use effect.
In order to confirm the quality of this batch of inorganic glass, both the supply and demand sides jointly entrusted an appraisal agency to conduct quality appraisal. The
expert team went to the site to randomly sample and conduct bending strength and impact strength tests. They found that both were far lower than the national standards. This has a lot to do with the ratio of the adhesive material, molding temperature, curing time and other factors. In addition, from the composition analysis, the content of magnesium oxide is lower than that specified in the contract, and its content has a crucial impact on strength.
In summary, this batch of inorganic glass pipes has quality problems and does not meet national standards.