Welded flange: Welding neck flange is usually referred to as "high hub" Flange. Its purpose is to transfer the pressure pipe, thereby reducing the flanged high stress concentration. Welding neck flange is the best designed butt that the value of its own existence due to structural provide flange. But the price is relatively high, because of the complexity of the production process of the product. Thread (thread) Flanges: The threaded flange is threaded to connect. But the center of the tube products have corresponding thread size. Its main advantage is that it can be assembled without welding. Sliding Flanges: slip flange has a low hub because the pipe before entering the single flange welding. This is welded inside and outside provide sufficient strength to prevent leakage. Sliding flanges are matching the outer diameter of the pipe slightly bored. They are better than the neck flange welding, due to the lower initial cost, many users, but probably will not last more than the cost of installation, less because of the increased weld neck flange. Lap flange: flange is actually in the same lap sliding flange with neck flat welding flange price, unless it a radius between the hole and the flange race. This is necessary to accommodate the radius of the overlapping flange stub ends. Typically, lap and lap at the end of the stub mating flanges together to assemble the system. The socket welding flange is similar to a sliding flange, unless it has a hole and anti-hole size. Counter bore little beer than matching flange OD pipe, the pipe inserted into the flange similar sliding flange. Smaller hole diameter is the same as the ID matches the same pipeline. Limit is a built-in stainless steel flange hole suppliers, as a shoulder sleeve designed for the pipeline to stay at the bottom. This eliminates any flow restrictions in the use of socket welding flange. Simple flat welding flange structure, timber province, but not as good as with neck stiffness and tightness of welded flange. Welded flange connections are widely used in low-pressure vessels and piping. Flat welding flanges for nominal pressure of not more than 2.5MPa carbon steel pipe connections. Welded flange sealing surface can be made smooth style, bump style and tenon slot three. Smooth application of flat welding flange maximum multi-media conditions for relatively mild conditions, such as low-voltage non-purify compressed air, low pressure circulating water, it has the advantage of cheaper prices. Butt welding flange installation requires two-sided welding flanges. Welded flange is used in high-pressure high-pressure pipe connection flange manufacturer, welded flange is generally at least PN2.5MPa, using the butt is to reduce the stress concentration, mostly general welded flange with neck Act Portland also called nipple flange. So welded flange mounting costs, labor costs and auxiliary fees are high, because more than one process. Welded flange with neck flange _ Hebei billion price _ specializing in the production of gold piping flanges provided by Hebei billion in gold piping. If you have any questions about this information or consultation, please contact us now! Our Company Name: Hebei billion Gold Pipe Manufacturing Co. (www.yijinguanjian.com) Contact: Alan Li Tong, or click on "Business League call" direct dialogue with us!