Slip On Flange and Welding Neck Flange in the structure of the biggest difference is that the connection with the flange connection is different from the neck with flat welding flange are generally connected with the flange angle, while the neck with the flange flange flange Take over the butt.
The ASME B16.5 standard contains the pressure, temperature ratings, material, dimensions, tolerances, marking, test and identification of pipe flanges and flanges. Including: 1/2 "-24" "pressure rating, Class150, Class300, Class400, Class600, Class900, Class1500, Class2500 pounds, the bolts and flange bolt hole diameter in English.
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Slip On Flange generally only connected with the pipe, but can not be directly connected with the pipe fittings; Butt welding flange can be generally all welded pipe fittings (including elbow, tee, reducer, etc.) directly connected, of course, including pipeline.
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