Welding Boss is a forged component used in piping systems to create a reinforced branch connection, typically for small bore outlets like pressure gauges, thermowells, instrumentation lines, or sampling points. It acts as a welding pad that strengthens the localized area where a smaller pipe or fitting connects to the main header or vessel.
Welding bosses are machined to suit either socket weld or threaded connections, and they are fillet-welded onto the run pipe or vessel surface. Their compact design and strong mechanical integrity make them ideal for high-pressure and high-temperature service applications where standard tees or branch fittings are not practical.
These fittings are widely used in oil & gas, chemical processing, steam systems, power plants, and process instrumentation, especially when connecting auxiliary equipment to main lines. The boss creates a reliable transition point that allows instruments to operate safely while minimizing turbulence or leakage risks. click here for pipes
At Middle East Piping, we supply Welding Bosses in a variety of materials, including carbon steel (A105), stainless steel (304/316), and alloy steel (F11, F22). Our bosses are manufactured in accordance with international standards and supplied with EN 10204 3.1 / 3.2 test certificates, ensuring full traceability and quality compliance. click here for valves
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