High Neck Flange: compared with Butt Welding Flange, welding workload, welding rod consumption is high, can not withstand high temperature and high pressure and repeated bending and temperature fluctuations, but the field installation is more convenient, can omit the welding seam film flaw detection process, more popular.
Manufacturing Standard: HG/T20615-2009, ASME B 16.5 connection mode: Flange nut, bolt connection production technology: professional whole forging, forging and other processing mode: high precision CNC lathe turning, ordinary lathe finishing, argon ARC welding and other processing applications: Boiler pressure vessels, petroleum, chemical, shipbuilding, pharmaceutical, metallurgical, machinery, stamping elbow food and other industries
