Welding Neck Flanges are also referred to by their English name. A long conical neck with an end that is the same diameter as the pipe on which the flange is to be installed distinguishes them from other similar objects.
Similar to how two pipe ends are welded, the end of the flange is butt-welded to the pipe. This property gives the conduit a nearly constant area and eliminates the risk of turbulence in the circulating fluids. You can choose SORF flange manufacturers in india for welding necks.
This type of flange has strengths due to its long neck and smooth transition in thickness that make it appropriate for use in piping sectors prone to bending loads brought on by the expansion and contraction of the lines. For difficult services, such as those involving high temperatures, high pressures, flammable, corrosive, or toxic substances, or leaks of any type must be kept to a minimum, Welding Neck (WN) flanges are advised.
Because the other types of flanges cannot be subjected to these weld inspection procedures, WN flanges are more reliable and safe to use. The butt weld between the pipe and flange has good fatigue resistance and doesn't create any localized stress areas.
Examples of typical applications are water lines, steam, oil, natural gas, refined hydrocarbons, condensates, fire networks, and compressed air. The flange style is most frequently utilized in the oil refining sector. Inconel 625 Flanges manufacturers provide various types of flanges.
Flanges with a seat for socket welding (SW)
Plug Welding Socket Welding Flange is another word for flanges in English. The pipe penetrates the flange until it sits on a seat with the same internal diameter as the pipe, creating a smooth conduit without cavities instead of having a conical neck like the WN.
Due to its fillet shape, this weld cannot be radiographically evaluated, but it may be inspected using the Magnetic Particle Test and the Penetrating Dye Test. Because ASTM A234 WP22 only needs a small amount of longitudinal space in the line to be assembled and the weld is a fillet rather than requiring pipe preparation, assembly times are shortened.
They are utilized in many different fluids, including water lines, condensate, steam, oil, gas, fire networks, compressed air, and various pressures. Only reduced diameters, less than or equal to 2′′ NPS, may be utilized with them (50).
Flanges that slip on
"Slip on Flange" is also used to refer to slip-on flanges in English. They are favoured over Welding Neck flanges by many users because of their inexpensive initial cost and simplicity of installation. They are available for low pressures and a wide variety of sizes. Roughly speaking, a Welding Neck flange's worth of resistance under pressure has been determined.
Common uses: In the event of leakage, low pressure, low-risk fluids are employed. As long as they are at low pressure, they are typically found in cooling water lines, water lines in case of fire, low pressure compressed air lines, and process lines like steam, oil, gases, condensates, etc. They are picked out for diameters bigger than 2 1/2 inches.
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