Hang Bo tube factory in Hebei most trusted welded flange manufacturers, Bo Hang fittings focus on the credibility of the first, timely delivery, the buyer received a lot of praise. Over the years, I plant pipe products in the electricity, petroleum , chemicals, heating, shipbuilding, petroleum, metallurgy and other industries have been widely used and provide a quality service products exported to international markets, won the praise of users, you give us a choice, we also you a miracle. We Hang Bo pipe fittings to the highest quality of product quality, lowest price and best service system and sincerely hope that you can call to discuss the plant to guide and welded flange process standards and quality control: feed - physics and chemistry - cutting! - forging forming - heat - test - metal machining - product testing - Identification - product testing - Identification - Packaging typing - shipped. Welded flange is mainly used for welding flanges and pipe counterparts, reasonable structure, greater strength and rigidity to withstand high temperature and pressure, and repeated bending and temperature fluctuations, reliable sealing. Nominal pressure of 0.25 ~ 2.5MPa welding flange sealing surfaces using bump. Welded flange with a wide range of used and promoted in the pipe, and needs to be used in accordance with the appropriate ways and means. Welded flange means with a neck and a tube and the tube welded transition flange connection. Processing methods: high-precision CNC lathe turning, fine turning lathe, welding and other processing Nominal: sch5s, sch10s, sch20s, sch30s, sch40s other manufacturing standards: GB, American Standard, the Russian standard, Japanese standard and other connections: France Portland nuts, bolts connection. International welded flange anti-corrosion, acid and alkali, long life, reasonable prices, smooth, acid and alkali, high temperature, reasonable prices, appearance, texture and strong performance. Wind Nuclear dedicated welded flange, flange products annular shape; intermediate flange on the back of the product for a boss-like, in the middle of the front flange frustoconical; frustoconical head product was a short cylindrical shape, short cylindrical head set chamfered; flange surrounding the product is provided with a number of axial flange bolt holes. This product is due to the pressing surface with a boss and a truncated cone structure, when the cold deformation of the flange only by certain deformation, while clamping surface is not affected, the seal is not easy deformation aging, more long-term use of time, it can be particularly Wind nuclear power to meet the special flange for strength and weather resistance welding needs. Wind Nuclear undertake special welding flange, wherein: the product circular flange ring, flange back of the product in the middle of a boss-like flat front with a transition in the middle of the arc-shaped boss, flange center hole counterbores; product peripheral flange axial flange provided with a plurality of bolt holes. This product is due to the pressing surface with a boss structure, when the cold deformation of the flange only by certain deformation, while clamping surface is not affected, the seal is not easy deformation aging, more long-term use of time, it can be especially dedicated nuclear power to meet the wind flanges for strength, weather resistance and weldability required.