The characteristics of different types of flange

　　Hubbed flange neck low height, stiffness, bearing capacity of flange is improved. Compared with butt welded flange, welding workload is big, electrode consumption is high, the high temperature and high pressure, and repeated bending and temperature fluctuations, but the scene is convenient to install, omitting the weld shoot injury rubbing process, the more popular.

　　Flange butt welding: welding neck flange is usually called "high flange hub". Its purpose is to transfer pipeline pressure, thereby reducing Frankie in high stress concentration. Welding neck flange butt welding is the best design that are currently due to its inherent value of structural flange. It is expensive because of the design.

　　Nominal diameter of the threaded flange: DN8 ~ DN50 working pressure: 1 ~ 2.5 (MPa) plate type of threaded flange material: stainless steel. Threaded flange suitable for fire, gas, cold and hot water, air conditioning, air pressure pipe, tubing, instrumentation, hydraulic pipe and other industrial and civil pipe thread lock seal, etc..

　　Also known as the flange blind flange, flange intermediate without holes, for pipe plug seal. Sealing surface in the form of many types, a planar, convex, concave convex surface, groove, ring joint face.