Shandong PPH Coated Flange Wholesale, Pricing, Suppliers, Sales - Where to Find It? [Zhenjiang Xingyang Electrical Pipe Industry Co., Ltd.]

PPH pipe flanges, also known as PPH pipe flange discs or bonnets, are components used to connect pipes with each other and with valves, attaching to the pipe ends. PPH pipe flanges feature holes, and bolts are used to tightly secure two PPH pipe flanges together. Seals are used between PPH pipe flanges. They come in threaded (screwed) PPH flanges, welded PPH flanges, and sleeve PPH flanges.

Container PPH flanges and pipe PPH flanges are divided according to the connected components; by structural type, there are integral PPH flanges, slip-on PPH flanges, and threaded PPH flanges. Common integral PPH flanges include flat welding PPH flanges and socket welding PPH flanges. Flat welding PPH flanges have lower rigidity and are suitable for pressures of p≤4MPa. Socket welding PPH flanges, also known as high-neck PPH flanges, have greater rigidity and are suitable for higher pressure and temperature conditions. There are three types of sealing surfaces for PPH flanges: flat sealing surface, suitable for low-pressure, non-toxic medium conditions; concave-convex sealing surface, suitable for slightly higher pressure conditions; and tongue-and-groove sealing surface, suitable for flammable, explosive, toxic media, and higher pressure conditions.