Seamless Long Welding Necks flange: Seamless Long Welding Necks flange: neck height is higher, stiffness and bearing capacity of the flange.Compared with butt welding flange, welding workload big, electrode consumption is high, can't withstand high temperature and high pressure and repeated bending and temperature fluctuations, but the installation is convenient, can be omitted weld take knead injury process, more popular. Manufacturing standards: HG/T20615-2009, ASME B 16.5
Seamless Long Welding Necks flange Connection mode: flange nut, bolt connection Production process: professional whole forging, forging manufacture and so on Processing method: high precision CNC lathe turning, ordinary lathe car, argon arc welding and other processing Application: apply to the boiler pressure vessel, petroleum, chemical, shipbuilding, pharmaceutical, metallurgy, machinery, food and other industries