Large flange standards large flange specification is not fixed, for processing in accordance with the specific needs on the ground, usually first plate cut into the right note, note length based on the large flange specifications. Then roll the ring plane rolled into a circle, with the interface of solid welding electrodes, weld at the X-ray spectrum to be tested. Then press to flatten, then lathe processing waterline, chamfering and other processes, Shantou carbon steel flanges, and finally with the indexing plate with the bolt hole drilling machine drilling processing. Playing bolt hole when the bolt hole is not playing a large flange weld in place. In addition, some large flange in the transport but also related to the contract signed, because there are some flange beyond the standards required by the road, if the entire flange for transport, is bound to cause trouble, so most of the flanges are is segmented transport. Large-diameter flange should have a good working performance, can meet the requirements of the tube connection quality, large-scale carbon steel flanges, and comply with the relevant product protection, safety regulations and technical specifications of the provisions, the bulk density of connections. Than the product of the total volume of its mouthpiece, the true density means does not include other parts of the tail pipe openings of various pore volume, is connected with the nozzle tightness closed end and the other end with the outside world, it can provide security at a certain temperature and pressure Under the gas nozzle through ability, usually measure gas permeability coefficient. Large-diameter flange with refractory materials, high temperature materials, good sealing performance and some ordinary steel and heat-resistant metal. Reasonable selection of materials to ensure product quality and large-diameter flange, safe and economic operation and increase its service life has a very important role. Yanshan County Bo Yan Pipe Co., Ltd. The company mainly produces steel seamless pipe fittings, steel seam pipe fittings, forged fittings, flanges and other forged products pressure piping components, products widely used in petroleum, petrochemical, power, supply hot, shipbuilding, construction, oil and gas industry, selling 29 domestic provinces, municipalities and autonomous regions, and exported to the US, Singapore, Iran, Pakistan and other countries and regions, it is the focus of pipe production Sinopec, PetroChina, CNOOC, the state electricity and other units suppliers. Marine flange and the origin of the name of the product itself is closely related to the use of marine vessel flange is used in flange on the tube and pipe flanges are interconnected parts. Marine flange standard is divided into: GB, Florida carbon steel flanges, non-standard, international standards: DIN, Japanese standard, American Standard, the British standard welded flange; according to the process is divided into: Marine flat welding flange, marine welded flange. Marine welded flange is inserted into the tube inner flange welded flange, welded flange into with neck flat welding flanges and welded flange plate take two kinds. Marine welded flange advantage is simple to manufacture, low production costs, but not high temperature high pressure, mainly used for pressure is below 2.5 MPa at room temperature piping, flanges ship most used. In order so that we can give you a brief glance below explain these types of products. Marine welded flange, carbon steel flanges, also known as high-neck flange, refers to the transition with neck tube and are welded to the tube flange connection. Marine stiffer welded flange distortion, sealed, widely used, suitable for high pressure and temperature of the occasion, nominal pressure PN at about 16MPa. Mainly used for air piping, piping carbon dioxide. Bo Yan Pipe Industry (FIG), Zhengzhou carbon steel flanges, carbon steel flanges provided by the Yanshan Xian Yan Bo Industry Co., Ltd. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) provide customers with "elbow, tee, size, head, head, flange, hanger, manhole, compensation, take over the seat" and other services The company has "Bo Rocks" and other brands. Focus on the elbow and other industries have a higher visibility in Cangzhou, Hebei. Welcomes inquiries, contact: Wenjiang.