The most frequently encountered flange type is the weld neck fl

  • Weld neck flanges are the most common type of flange, consisting of a neck extension with a weld bevel at the end of the extension. This style of flange is intended to be butt welded directly to pipe in order to provide a superior and more natural-looking joint. This is the type of flange connection that is almost exclusively used in larger sizes and higher pressure classes, as the name implies. If there was only one type of bored flange available in today's applications, the weld neck would be the flange of preference.

    In a V-type connection, the weld bevel connects to a pipe end with a comparable bevel, allowing for a uniform circular weld around the perimeter to create a unified transition between the two materials. This allows for the gas or liquid contained within the pipe assembly to flow through the flange connection with the least amount of restriction. Following the weld procedure, this weld bevel connection is inspected to ensure that the seal is uniform and free of abnormalities.

    The tapered hub of the Weld Neck Flange is the other prominent feature of the flange. As a result of operating in a higher pressure and higher temperature working environment, this style of connection allows for a more gradual distribution of pressure pressures along the transition from the pipe to the base of the flange, which helps to reduce the amount of shock experienced. The increased steel mass at the hub transition helps to reduce the mechanical stresses that occur there.

    Given the fact that higher pressure classes almost exclusively require this type of flange connection, weld neck flanges are commonly manufactured with a ring type joint facing (also known as RTJ face) (also known as RTJ face) (also known as RTJ face). This sealing surface enables a metallic gasket to be crushed between the grooves of both connecting flanges, resulting in a superior seal that complements the high strength weld bevel connection to the pressurized pipe assembly and provides a superior seal. When it comes to critical applications, an RTJ weld neck with a metal gasket join is the best option available.



    These products, which were also known as nozzle flanges and long neck flanges, were designed specifically for use in the pressure and tank manufacturing industries. They are typically constructed as a single piece in order to eliminate the need for a traditional soldering neck and welding pipe combination. When it comes to this particular flange design, its distinguishing feature is the absence of an absolutely necessary solder connection.

    The weld neck bevel is usually replaced by a straight line with a square finish (as opposed to the typical weld neck bevel). The bore size of the long neck is usually the same as the bore size of the actual nominal pipe, but it can be changed if it is absolutely necessary. The total length of the bust is also entirely up to the discretion of the end user, and the body of the bust can be adjusted for additional reinforcement to some preexisting sizes or to custom sizes if necessary. Because the base of the neck, which is connected to the base of the flange insocket weld pipe flanges, has been gently radiated, the abrupt perpendicular connection between the two parts of the flange has been alleviated, and the idea of an enhanced one-part structure has been strengthened, the base of the neck is gently radiated.

    This type of flange design is referred to as street hub welding flanges in accordance with ASME B16.5, subsection 2.8, even though the governing regulation provides very little information about them. The reason for this is that long welded necks are selected for each application based on the specific engineering requirements of a particular tank or pressure vessel. The working pressure, temperature, and media of the vessel are all important factors in determining the type of long neck flanges you require.