In water supply systems, water conservancy projects, and municipal pipe networks, ductile iron pipes are the preferred material due to their high strength, high toughness, and excellent corrosion resistance. The internal corrosion protection and water quality safety of these pipes heavily rely on the quality of their inner lining. DINSEN ductile iron pipes strictly adhere to the international EN545 standard, establishing a scientific and rigorous quality assurance system for the thickness control and testing of product linings, especially cement mortar linings, ensuring a durable, safe, and reliable piping system for every customer.
The EN545 standard is the authoritative specification for European drinking water pipelines. It provides clear and highly operational regulations for measuring the thickness of cement mortar linings. This is not only an acceptance standard but also a guideline for quality control during the production process.
During production, the thickness is measured on the freshly lined lining using a pointed object with a diameter no greater than 1.5 mm. Alternatively, it can be measured on the hardened lining using a suitable measuring instrument, such as a magnetic one. The pipe measurement point is 200 mm from the end face, and the manufacturer’s process control system should specify the testing frequency.
The EN545 standard has been internalized as a more stringent corporate internal control standard and integrated into the core value of product marketing. Choosing DINSEN ductile iron pipes is not just about selecting a product that meets the EN545 standard, but also about choosing a comprehensive solution based on scientific measurement, guaranteed by process control, and centered on customer value. Our extreme pursuit of detail in the lining thickness is the best interpretation of the DINSEN brand’s commitment to “Safe Water Supply, Century-Old Projects.”
Trusting DINSEN means choosing a reliable and safe solution for your project that can withstand the test of time.
Post time: Nov-20-2025
