Hygienic Butterfly Valves used in Food,Beverage,Pharmacy etc.

June 25, 2018

Application of Butt Weld Flange in Pipe Fittings

Flat welded steel flange: for nominal pressure not exceeding 2.5MPa steel pipe connection. Flat welding flange sealing surface can be made of smooth, bump and tongue and groove type three. Smooth flat welding flange application Maximum. Used for medium conditions more moderate circumstances, such as low pressure non-purified compressed air, low pressure circulating water, which has the advantage of cheaper prices. Welded flange for pressure or temperature fluctuations in the pipeline or high temperature, high pressure and low temperature pipes, but also for the delivery of expensive, flammable, explosive media pipeline. Welded flange is not easy to deformation, sealed, widely used, nominal pressure PN at about 16MPa. Butt flanges are flanges with neck and tube transition and butt welded to the tube. Butt Weld Steel Flange: It is used for the counter welding of flange and pipe, with reasonable structure, strong strength and rigidity, withstand high temperature and high pressure, repeated bending and temperature fluctuation, reliable sealing. Nominal pressure is 0.25 ~ 2.5MPa Butt flange with concave and convex sealing surface. Flat welding and butt welding are flanges and pipe connections when the welding method, flat welding flange welding only need to single-sided welding does not require welding pipe and the flange of the mouth, the welding flange flange installation requires double-flange Surface welding. Welded flange flange and pipe connections used in the welding method for butt welding and pipe and pipe welding similar to the general diameter of the small argon arc welding base, hand welding cover, large diameter Only use double-sided welding.

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