Factory Direct Welding Neck Flanges | Stainless Steel & Carbon Steel

Product Data

Welding Neck Flange
Standard	ANSI	ANSI B16.5, ASME B16.47 series A/B
	DIN	Germany 6bar, 10bar, 16bar, 25bar, 40bar
	GOST	GOST 12820/12821/12836
	EN1092-1	EN1092-01/05/11/12/13
	JIS	JIS B 2220 JIS B2238
	BS4504	BS4504 BS10 Table D/E
Sealing Surface Form	FF、RF、M、FM、T、G、RJ
Material	ASTM A105 ST37.0 A350 LF2 A694 F60 A694 F70 SS304 SS321 SS316
Nominal Pressure	class150 PN16 PN10
Applicable Medium	oil,gas,water or other medium;
Technology	Forge&CNC machining
Payment Term	FOB,CIF

Product Introduction

The EN1092-1 standard is one of the standards jointly formulated by the European International Organization for Standardization (ISO) and the European Organization for Standardization (CEN), which specifies the design, size and technical requirements of flanges and flange accessories. Among them, the neck butt welding flange is one of the common flange types. A weld neck flange is a round flange that has a protruding neck in the center. The neck is a part used to connect the flange and the pipe or equipment, and the flange is fixed on the pipe or equipment by welding the neck. Weld neck flanges are usually made of carbon steel, stainless steel or alloy steel and are suitable for high pressure and high temperature applications. The EN1092-1 standard stipulates the size and pressure level of the welded neck flange to ensure that its connection with the pipeline or equipment can be carried out under safe and reliable conditions. The standard also includes material, manufacturing and testing requirements for flanges to ensure compliance with relevant quality and safety standards. Weld neck flange is a common flange connection method, which is widely used in the industrial field. Its design and manufacture need to follow relevant standards and specifications to ensure its good performance and reliability. Size: The standard sizes of weld neck flanges range from DN15 to DN2000. Pressure: The standard pressure ratings of weld neck flanges range from PN2.5 to PN100. In addition, the EN1092-1 standard also stipulates the technical requirements such as the bolt hole size, quantity, and pitch of the welded neck flange to ensure that its connection with the pipeline or equipment can be carried out under safe and reliable conditions. However, it should be noted that different countries and regions may have their own standards and specifications, so when choosing neck butt welding flanges, you should also refer to the corresponding standards and specifications according to the specific situation. Advantage: 1.The neck butt welding flange has good sealing performance and can be used for pipeline connections with high pressure, high temperature or corrosive media. 2.Due to the existence of the neck, the neck butt welding flange can withstand larger loads and impact loads, and has better shock resistance. 3.The weld neck flange has a compact structure and is less prone to leakage problems. 4.The neck butt welding flange has a simple connection method and is easy to install and disassemble. Disadvantages: 1.The manufacturing cost of the weld neck flange is relatively high. 2.Since its design and manufacture need to strictly follow standards and norms, there is a problem of relatively difficult quality control in the process of manufacture and use. Applications: Welding neck flanges are suitable for pipeline connections in many fields, especially those requiring high pressure, high temperature, corrosion, vibration and other working conditions. Specific application areas include petroleum, chemical, electric power, natural gas, pharmaceutical, food, paper and other industries. In short, the neck butt welding flange is a reliable pipeline connection method with good sealing performance and shock resistance. It is suitable for various high-pressure, high-temperature, and corrosive medium pipeline connections. Control quality.

Welding Neck Flange EN1092-1 Stainless Steel Carbon steel

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