Yanshan County Bo Yan Pipe Co., Ltd. is located in Yanshan County Industrial Development Zone more information, call 0317-5128652 15369761895. North of Beijing and Tianjin and Beijing-Shanghai railway to the east Bohai Sea, Tianjin Port, State Road across the county superior geographical conditions, abundant local resources, for my company's development has laid a good foundation. Best-selling products, and exported to South Korea, Vietnam, Singapore, Malaysia and other countries. I used to pursue "science and technology first, gaining the upper hand, quality, customer supreme, credit first" business ideas, is willing to domestic and foreign users and sincere welcome customers to work together to create a better future. Large roll cut into slats plate flanges, carbon steel flanges, then rolled into a circle. Reprocessing waterline, bolt holes and the like. This is generally a large roll flange, the maximum you can achieve 7 meters. Such flange has a good quality assurance. Because the raw materials are in the board, good density, the material used in the production of carbon steel, stainless steel, alloy steel. In the machinery industry, many manufacturers use flange (also can be said that the reinforcement ring) is connected to or supporting role, and so as that used to directly rolled into steel (flat) directly on the roll flange equipment needed The ring can be, this working method cut corners, Quanzhou carbon steel flanges, significant cost savings. American standard stainless steel flange Note a bolt preload an appropriate increase in preload can increase the capacity of the gasket seal. (Because: the capillary pore permeability decreases gasket material) 2, so that the preload force evenly acts on the gasket - can be taken to reduce the diameter of the bolt and bolt increase the number of Option 3, the preload can not be too large, We can not be too small. (Too big: the spacer crush or extrusion; too small: reach and achieve initial seal gasket pressed condition.) Second, the pressing surface (sealing surface) Type 1, marine trapezoidal groove clamping flange Surface: bottom afford seal is tapered gasket groove of the inner and outer contact trapezoidal form a seal, metal washer with oval or octagonal cross section with 2 bump type: from a concave surface and a convex surface with the composition. Concave washer in place. Advantages: easy alignment, can prevent gasket extrusion. Available in P≤ *** Mpa, DN≤800mm 3, tenon groove: a tongue of a groove seal surface composition, the advantage of neutral, small seal preload pressure, Zhangye carbon steel flanges, gaskets easy extrusion , but also from the media, erosion, sealing requirements for high explosive. The disadvantage is more difficult to replace, easy to damage joints. 4, American Standard flange planar clamping surface: The surface of the pressing surface is flat or planar grooved. Advantages: simple structure, easy to process. Disadvantages: the contact area, the need is greater than the pressure preload, bolt carrying large, stainless steel flanges and other parts so high, heavy, gaskets and easy extrusion, poor Xiamen carbon steel flanges, sealing performance. Use pressure P≤2.5Mpa, you can not use toxic, flammable, explosive medium. 5, the conical clamping face: Commonly used high pressure seal, the drawback is the need for dimensional accuracy and surface roughness demanding. We shall cooperate with the lens gasket, commonly used in high-pressure pipes, steel flanges, Bo Yan Pipe Co., Chaohu steel flange provided by the Yanshan Xian Yan Bo Industry Co., Ltd. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) Hebei Cangzhou, elbow leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Bo rock pipe industry leadership with the staff warmly welcome all inquiries negotiations to create rich rock pipe industry a better future.