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DINSEN’s QSML Series
To meet the needs of DINSEN’s customers in the CIS, higher requirements have been placed on the performance and environmental adaptability of its piping products. At the beginning of 2026, DINSEN officially launched the new QSML series of piping products, aiming to provide specialized solut...Read more -
Deflection Testing of Grooved Pipe Couplings: Ensuring Stability in Piping Systems
The joint deflection test is a systematic testing method designed to evaluate the performance of grooved pipe fittings under angular deflection forces. This test simulates various stress conditions that piping systems may encounter in real-world use, including pipe deflection caused by ground set...Read more -
Ductile Iron Pipes: Reliable Choice for Water Conservancy Construction
Water conservancy construction is a fundamental and strategic project for national economic and social development, playing a multi-dimensional, profound, and crucial role. It is not only an engineering means of utilizing water resources and preventing water-related disasters, but also a key supp...Read more -
The Torque Test of Grooved Pipe Fittings
The torque test of grooved pipe fittings aims to systematically evaluate the mechanical performance and safety margin of grooved pipe fittings under torque load in complex pipeline systems, verify their torsional strength, structural stability and long-term reliability, and provide key data suppo...Read more -
How to Reduce Ductile Iron Pipe Wear
Analysis of the Main Causes of Wear in Ductile Iron Pipes 1. Wear caused by fluid characteristics: Impact of high-speed water flow on the pipe wall, friction from solid particles (silt, impurities) in the water. 2. Installation and usage environment factors: Improper installation methods leading ...Read more -
Appearance for Grooved Pipe Fittings under GB5315 Standard and Advantages of DINSEN
Grooved pipe fittings, as key components in modern piping systems, directly impact installation efficiency and system safety due to their appearance quality and standardized markings. my country’s GB5315 standard sets forth clear technical requirements for the appearance and markings of gro...Read more -
Understanding Grooved Pipe Fittings and GB5135 Standards
Grooved pipe fittings, as crucial components of modern pipeline connections, can be broadly categorized into flexible coupling joints and rigid coupling joints based on their structural characteristics, playing a key role in fire protection, water supply, and drainage systems. Rigid coupling join...Read more -
What is the ISO standard for ductile iron pipes?
ISO2531 is the core document of the International Organization for Standardization’s standard for ductile iron pipes, fittings, accessories, and joints. First published in the 1970s, this standard has undergone numerous revisions and updates. The latest version provides comprehensive requir...Read more -
Ductile Iron Pipe Brazil Standards Guide: NBR7675 & NBR15420:2022 Explained
The Brazil standard NBR7675 is the fundamental specification for ductile iron pipes (DI pipes) in water applications, covering: Chemical composition requirements for pipe materials (carbon, silicon, manganese, phosphorus, sulfur, etc.) Mechanical performance indicators (tensile strength ≥420 M...Read more -
DINSEN Ductile Iron Pipes: EN545 Type Testing for Guaranteed Quality
As a high-end piping brand solution provider, DINSEN understands that every pipe carries the weight of safety, durability, and trust. To this end, we have built a “triple quality protection” system from materials to finished products—namely, rigorous factory inspection, scientific sam...Read more -
What is the Difference between K9 and K7 DI Pipes?
The choice between K7 and K9 essentially boils down to a decision about “pressure requirements” and “standard grade.” K9, with its standardized thick-walled design and stringent international standards, is a more reliable choice for high-pressure environments and projects ...Read more -
Explore DINSEN’s Full Range of Infrastructure Piping System Solutions
From the clean tap water we drink every day to the smooth discharge of rainwater and sewage, and the fire protection systems that safeguard lives and property, every pipe and every connector is a cornerstone of urban safety and vitality. As a reliable partner in the infrastructure sector, DINSEN ...Read more
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