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What is the difference between hub and no hub cast iron pipe?
When planning building drainage, sewage, or ventilation systems, cast iron pipes are the preferred material due to their superior durability, sound insulation, and fire resistance. However, when you begin sourcing, you’ll soon encounter two key terms: cast iron pipe hub and hubless cast iro...Read more -
EN545: Internal Corrosion Protection of Ductile Iron Pipes
In modern urban life, the sanitation and environmental protection requirements of urban water supply must be taken into consideration. To prevent rust from contaminating tap water and to protect the pipes from corrosion from within, the inner wall of the pipes must be coated with an internal coat...Read more -
EN545 Standard: Ductile Iron Socket and Spigot Pipe & Socket Dimensions
1. Ductile Iron Sliding Flexible Joint The most common joint type for ductile iron pipe, the T-joint relies on contact pressure between the rubber ring and the socket and spigot (partially generated by pre-compression during installation) to create a seal against fluids. The socket design takes ...Read more -
EN196-1 Determination of Compressive Strength of Cement
The cement-mortar linings for ductile iron pipes is primarily used to prevent corrosion and scaling on the inner wall of the pipe, ensure water quality, and reduce hydraulic friction losses. However, the core European standard EN196-1 specifies the method for determining the strength of cement mo...Read more -
How to Cut Cast Iron Pipe with a Pipe Cutter?
Have you ever struggled with cutting cast iron pipe during pipeline construction, municipal projects, or renovations of older residential communities? Traditional cutting methods—hammering, chiseling, and grinding with angle grinders—are not only inefficient and labor-intensive, but also produce ...Read more -
Cast Iron Pipe A1 Correct Storage Method of Epoxy Paint
Cast iron pipe epoxy resin is required to reach 350 hours of salt spray test under EN877 standard, especially DS sml pipe can reach 1500 hours of salt spray test (obtained Hong Kong CASTCO certification in 2025). Recommended for use in humid and rainy environments, especially at the seaside, the ...Read more -
DS rubber Joints Performance Comparison
In the pipe connection system, the combination of clamps and rubber joints is the key to ensure the sealing and stability of the system. Although the rubber joint is small, it plays a vital role in it. Recently, the DINSEN quality inspection team conducted a series of professional tests on the pe...Read more -
DINSEN Cast Iron Pipes Complete 1500 Hot and Cold Water Cycles
Experimental purpose: Study the thermal expansion and contraction effect of cast iron pipes in hot and cold water circulation. Evaluate the durability and sealing performance of cast iron pipes under temperature changes. Analyze the effect of hot and cold water circulation on internal corrosion a...Read more -
What are cast iron fittings used for?
Cast iron pipe fittings play an indispensable role in various construction projects, municipal facilities and industrial projects. With its unique material properties, many advantages and wide range of uses, it has become the preferred pipe fitting material for many projects. Today, let’s t...Read more -
DINSEN laboratory completes spheroidization test of ductile iron pipes
As a widely used pipe material, ductile iron pipe plays a key role in many fields. However, ultrasonic sound velocity measurement provides an industry-recognized and reliable method to verify the material integrity of parts. 1. Ductile iron pipe and its application DINSEN ductile iron pipe is a p...Read more -
For Ductile Iron Pipes, Choose DINSEN
1. Introduction In the field of modern engineering, ductile iron has become the preferred material for many projects with its unique performance advantages. Among the many ductile iron products, dinsen ductile iron pipes have won the favor and recognition of customers from all over the world with...Read more -
What is flanged ductile iron pipe?
In the field of modern engineering construction, the selection of pipes is crucial. Double flange welded ductile iron pipes have become the first choice for many engineering projects with their excellent performance, wide range of uses and unique advantages. As a leader in the industry, DINSEN co...Read more
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