Cangzhou Bohai Pipe Fittings Co., Ltd. 20 # flange butt weld neck flange welded flange: welding neck flange is usually referred to as "high-hub" flange. The aim is to shift the pressure piping 20 # Marine flange, thereby reducing Frankie high stress concentration. Neck flange design butt welding is the best of those present, because of its inherent structural value provided flange. This is expensive, because of the design. Thread (thread) Flange: The threaded flange is similar to sliding flange, but the hole threads. Its main advantage is that it can not welding assembly, in the ordinary interpretation of atmospheric temperatures in the low-pressure service and highly explosive areas, welded to create a hazard. Cangzhou Bohai Pipe Fittings Co., Ltd. specializes in manufacturing up to 20 # flange planar large-diameter flange of the amount applied, the other two methods in the use of large-diameter flange is relatively common. Large-diameter flange includes a variety of types and models, welded steel flanges welded to the flange and the pipe counterparts, primarily for use in welding technology, good performance characteristics and performance using 20 # flanges, reasonable structure, strength and stiffness larger flat welding flange 20 # withstand high temperature and pressure, and repeated bending and temperature fluctuations, reliable sealing, nominal pressure of 0.25 ~ 2.5MPa using large-diameter flange sealing surface uneven. Large-diameter flange main application environment is appropriate, depending on the circumstances to determine the need to ensure that the specific use of rolled flanges value and performance, withstand high temperature and pressure. # 20 flat welding flanges, Cangzhou Bohai (certified), Huai'an 20 # Flange Co. provided by Cangzhou Bohai fittings. Cangzhou Bohai Pipe Fittings Co., Ltd. (www.czbh628.com) is an industry leader in Cangzhou, Hebei, three, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Cangzhou Bohai leadership with the staff warmly welcome all inquiries negotiations to create a better future Cangzhou Bohai.