Welded flange Knowledge (a) weld neck flange and integral flange butt welding are based, has a long neck, how from the appearance of size and use the difference between weld neck flange and overall flange it. From the looks of it, the whole pipe end flanges welded flange pipe ends thicker than the overall flange ID except PN1.6MPa, DN450 above the rest are outside the same nominal diameter. Integral flange neck height high, the thickness of the wall thickness is relatively thick, the reference standard can be clearly seen from the application point of view, the overall flange is connected together with equipment such as flanges on the valve flange This flange and valve as a whole, are not connected by welding. Integral flange is used in the manufacture of the device in the pipeline design is almost not used. The weld neck flange and device is connected to valves, pumps, etc., when used in the mating flange welded to the pipe, the rear mount with the corresponding pipe size / piece diameter, wall thickness consistent, direct butt connection. Stainless steel flange welded flange gasket is placed between the two flange sealing surface, tighten the nut welded flange, than the pressure on the gasket surface deformation reaches a certain value, the sealing surface and fill irregularities at the coupling does not leak tight. Welded flange connection is a detachable connection. Welded flange connection can fully demonstrate good use of the role and value, can demonstrate its due role in the industry. For more information threaded flange: threaded flange connections and sealing former depends pipe thread processing quality, packing and tightening force appropriate level. Threaded flange and the pipe wall by a threaded connection stainless steel flanges, additional pressure on the wall to produce small, it is one of the flange structural forms widely used in construction. Threaded flange nominal diameter: DN8 ~ DN50 Working pressure: 1.0 ~ 2.5 (MPa) plate threaded flange material: stainless steel. Threaded flange Application: Suitable for fire, gas, hot water, air conditioning, air pipe, tubing, gauges, hydraulic pipes and other industrial and civilian pipe thread locking and sealing. Threaded flange means connecting end flange threaded flange. Press material can be divided threaded flange: stainless steel threaded flange, carbon steel threaded flange, threaded flange alloy steel, special steel threaded flange. Threaded flange connection is actually easy to remove, connect the smaller diameter, the thickness of the larger tube. Pipeline Equipment Co., Ltd. Changzhou Longsheng threaded flange has the following characteristics: good connection line and to keep the duct sealing performance, easy to replace certain pipeline; easy to open the inspection line situation; facilitate the closure of certain pipeline ; simple structure, small size, compact and reliable operation and easy maintenance side. Threaded flange is widely used in petroleum, chemical, food, dairy, pharmaceutical, machinery manufacturing, water treatment, municipal water pipes, fire pipeline and other industries. Flange steel flange _ _ Bo Yan Pipe supplied by Bo Yan Pipe Co., Ltd. Yanshan County. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) located in Hebei Yanshan Puwa zone. Scraps and development in the wave of market economy, the current Bo rock pipe industry has a high profile in the elbow, and enjoy a good reputation. Bo Yan Pipe made whole network business alliance certification, marking our service and management level has reached a new height. Bo Yan Pipe staff willing to work with all people of insight and common development, for a better future.