304 Flat weld flange

304 Flat Welded Flange is a commonly used welded flange made of mild or low-alloy steel, which is resistant to corrosion, high temperature, and good mechanical properties. It is attached to the pipe by welding and is used to connect pipe to pipe or pipe to equipment. The sealing surface of 304 flat weld flange is designed with a smooth or concave and convex surface, and when installing, only the flange needs to be welded to the pipe, and then docked with another flange, and sealed by bolting. This flange is widely used in petroleum, chemical, power, pharmaceutical, and other industries.

1. Product introduction

304 flat welded flange is a kind of connecting component made of 304 stainless steel as raw material, welded by flat plate and pipe, widely used in piping systems, with excellent corrosion resistance and mechanical strength, suitable for petroleum, chemical, pharmaceutical and other industries.

2. Common functions

304 flat welded flange is widely used in the connection of pipeline systems, its main functions include ensuring the tightness of pipeline connections, withstanding medium pressure, and facilitating the installation and disassembly of pipelines.

3, common standard

flanges include GB/T 9123, JB/T 74, HG/T 20592, EN 1092-1, ASME B16.5, etc., which respectively stipulate the design, size, material and connection method of different types and specifications of flanges to ensure the quality and safety of flange products. GB/T 9123 is mainly applicable to general-purpose threaded flanges, while JB/T 74 covers butt-welded steel pipe flanges, pipe covers and flange fasteners. HG/T 20592 is suitable for carbon steel and low alloy steel butt weld seamless pipe flanges used in the petrochemical industry; EN 1092-1 is the European standard for welded pipe flanges in carbon steel and low alloy steel; ASME B16.5 covers the design and manufacturing requirements for many types of pipe flanges.

4. Key parameters

When selecting 304 flat welded flanges, it is necessary to comprehensively consider the size specifications, pressure level, material, sealing surface form, quality requirements of the welded joint, corrosion resistance, temperature range, nominal diameter and thickness and other parameters of the flange to ensure that the flange can meet the design requirements and safety standards in practical applications.

5. Selection points

When selecting 304 flat welded flanges, it is necessary to comprehensively consider the matching of working conditions to ensure that the flange can adapt to the needs of the working environment; Follow the unified standards and choose flanges that meet national standards or industry standards; Consider sealing compatibility to ensure the sealing performance of the flange and pipeline connection; Pursue economic reasonableness, and choose the most cost-effective solution under the premise of meeting performance requirements. At the same time, it is also necessary to follow the installation specifications to ensure that the flange installation process meets safety and specification requirements.

304 Flat Welded Flange is a pipeline connection component widely used in petroleum, chemical, electric power and other industries, made of 304 stainless steel material, with excellent corrosion resistance and good welding performance. Its simple structure and easy installation are widely used in medium and low pressure piping systems. The sealing surface of 304 flat welded flange mainly has two types: flat and convex, which can meet the sealing requirements under different working conditions. Jianing company is committed to providing customers with high-quality and high-performance flange products.