ASME/ANSI B16.5 Stainless Steel Carbon Steel Welding Neck Flange

Product Data

Product Introduction

ASME B16.5 and ANSI B16.5 are standards for steel pipe flanges and flange connections, which are used to specify the requirements for size, design, material and testing of flanges used in piping systems.
ASME is the American Society of Mechanical Engineers standard, and ANSI is the American National Standard, these two standards are actually two versions of the same standard. These are now commonly referred to as ASME/ANSI B16.5 standards

Welding neck flange is also called neck welding flange, which is composed of five parts: neck, flange surface, screw hole, bolt and nut, and sealing gasket. Lan connection device, often used to connect pipes, valves, equipment and other components.

1. Neck: Also known as welding neck, it is a part of the flange, usually composed of a cylindrical neck section, and its shape has two types: long neck and short neck. Choose the appropriate type according to the use requirements.
2. Flange surface: The part connected to the pipe or equipment, usually a flat or raised circular surface.
3. Screw hole: Located on the edge of the flange surface, it is used to install bolts, connect and fix the flange.
4. Bolts and nuts: used to connect and fix the threaded part between two flanges.
5. Sealing gasket: Installed between two flange faces to ensure the sealing performance of the connection.

Features:
1. Excellent sealing performance: The processing of the neck and the structure of the sealing surface can provide reliable sealing performance, which is suitable for high pressure and high temperature environments.
2. Good bearing capacity: The structure of the neck can provide better bearing capacity, making it suitable for high pressure and high load working conditions.
3. Easy to install: the welding connection is stronger, the service life is long, and it is not easy to loosen.
4. Wide application: neck butt welding flange has strong bearing capacity and sealing performance, and is also commonly used in projects with high pressure, high temperature or high sealing requirements. For example, it is often used in petroleum, chemical, natural gas, electric power and other industrial fields.

When using a weld neck flange, it is necessary to place the two flange parts at the connection end of the pipe or equipment to be connected, and then fix them together by welding the neck. During the connection process, the sealing gasket must be installed correctly to ensure that no leakage occurs at the connection.