How many kinds of flanges do you have? Does anyone know a more specialized classification?
There are many kinds of flange, mainly due to the nominal diameter (A type B type, namely the metric system), nominal pressure, use of structure, material, sealing surface form, connection mode classification (diameter and pressure rating not included) according to the form of: flange welding plate flange (PL), hubbed flange (SO), neck flange (WN), integral flange (IF), socket welding flange, threaded flange (SW) (Th), welding ring flanges (PJ/PE), ring flanges (PJ/JR); according to the sealing surface form: process surface (RF), convex surface (MFM) and the tongue and groove face (TG), the whole plane (FF) and ring junction (RJ); this does not include the flange; according to the material: cast iron, cast steel, forging, flange, stainless steel flange, Q235 plastic flange etc..
Welding plate flange (PL)Hubbed flange (SO)Neck welding flange (WN)Threaded flange (TH)Socket welded flange (SW)Flange cap (BL)These are the main, there is a key to say, is the sealing surface classification
Flange sealing surface has protruding surface, RF plane, FF, concave convex, FM ring, connecting surface, RJ, etc.We usually encounter about these, and the other can contact me.Supplied by Jiangsu Feida flange
