Steel flanges play a critical role in industrial piping systems, ensuring secure connections, leak prevention, and ease of maintenance. However, to guarantee performance and compatibility, selecting the right flange standard is essential.
Globally, the most widely adopted flange standards include ANSI (USA), JIS (Japan), DIN (Germany), and BS (UK). Each standard reflects regional industrial practices and varies in size, pressure ratings, and design.
In this article, Sunjin Metals Vina (SJM Vina) will help you clearly understand these standards and provide guidance on how to choose the appropriate one for your project or market.
Steel flanges are critical components in piping systems, used to connect pipes, valves, and equipment under pressure. To ensure safety and performance, flange quality inspection is a vital process before shipment or installation.
Depending on technical requirements, project standards, and operating environments, several inspection methods are applied, including Ultrasonic Testing (UT), Magnetic Particle Testing (MT), and Pressure Testing (Hydrostatic/Pneumatic). Each method has its principles, advantages, and specific use cases.
This article from Sunjin Metals Vina (SJM Vina) explains these testing methods in detail and how they ensure the reliability of steel flanges.
Forged steel flanges are among the most widely used components in industrial piping systems. Thanks to their high mechanical strength, excellent pressure and temperature resistance, forged flanges are ideal for demanding applications in oil & gas, chemical processing, power generation, and water treatment.
In this article, Sunjin Metals Vina (SJM Vina) provides a detailed look into the manufacturing process of forged steel flanges—from raw material selection to machining and final quality checks—to help customers better understand the technical value behind each flange.
When designing and installing industrial piping systems, understanding the dimensions of steel pipes is crucial. At Sunjin Metals Vina (SJM Vina), we provide a full range of steel pipes and pipe fittings in accordance with international standards – ensuring precise fit, safety, and optimal flow capacity.
Steel flanges are essential components in industrial piping systems, particularly in industries such as oil and gas, chemicals, water supply, and power generation. The ANSI B16.5 standard is one of the most widely used standards globally, defining the dimensions, pressure ratings, and materials of steel flanges. At Sunjin Metals Vina (SJM Vina), we pride ourselves on supplying high-quality ANSI B16.5 steel flanges that meet the stringent requirements of industrial projects.
In this article, we provide a detailed ANSI B16.5 steel flange size chart, clear explanations of technical specifications, an easy-to-understand example, and reasons why SJM Vina is your trusted partner for piping material solutions.
In industrial piping systems, especially those handling liquids or gases, flanges are essential for connecting pipes, valves, and equipment. Besides flange type (weld neck, slip-on, threaded...), another critical factor to consider is the pressure rating, commonly referred to as Class 150, 300, 600, etc.
But what exactly does “Class 150” or “Class 300” mean? How do we choose the correct flange class for different pressure levels? In this article, Sunjin Metals Vina (SJM Vina) will help you clearly understand the meaning behind these classes and how to select the right one based on working conditions.
