Building a new run or replacing a worn connection? This flange is made for the work. This 1 1/4 socket weld flange (316 Stainless Steel) is a clean match for 150# raised-face connections. TheyÕre often chosen for smaller lines where a tidy weld setup matters and alignment is critical. Socket weld flanges are popular when you want a clean, compact connection and a strong joint after welding. ItÕs a favorite in more demanding environments where long-term resistance is the priority. The job of this socket weld flange is straightforward: it gives you a standard bolt-up point so your line can connect to other flanged components. Have a question before you buy? Send us the basics of your application and weÕll point you in the right direction.