Large stainless steel flange screw connection points (wire tapping) flange and welding flange. Stainless steel flange connections easy to use, Zhenjiang stainless steel pipe fittings, able to withstand greater pressure. Large stainless steel flange connection is the two pipes, fittings or equipment, first on each fixed in a stainless steel flanges, stainless steel pipe fittings between two stainless steel flange, with flange pad, fastened together with bolts Pingxiang stainless steel pipe fittings, complete the connection. Some fittings and equipment has been carrying flange, also belong to the flange connection. Large stainless steel flange cover, Hegang stainless steel pipe, is the cover rim flange edge, can be used with stainless steel bolted flange connection is important to make connections pipeline construction. Depending on the level of pressure, the flange gasket materials are also different from the low pressure asbestos gasket, high pressure asbestos gasket to metal pads are. Threading pipe bending machine designed by China Petroleum Pipeline Bureau, development. The main technical difficulty lies in the elbow bend radius, wall thickness were many variations. Chinese Academy of Oil and Gas Pipeline April 1, 2005 - October 1, 2006 in Φ1 219-mm-diameter threaded elbow coating technology and equipment research project, developed a set to be completed in addition to the inner surface of the elbow rust and paint coating equipment, to develop a complete coating of bends in the construction process, for domestic initiative. Threading bends requirements: threading elbow thrust equipment requirements, heating power, heating frequency, cooling rate, etc. shall meet the technical requirements; threading curved process control do during reheating to ensure that the mechanics of the X70 high yield strength steel Performance minimum extent of the damage or from damage, and shall meet the requirements of natural gas projects and technical conditions. Threading Elbow main technical performance: Bending diameter (D) 426 ~ 1200 mm; thickness of 6 to 30 mm bend; elbow bend radius (R) 1700 ~ 7850 mm; length of 15,000 mm tubing material; maximum loading tube weight 11,000 kg; bend angle ≤90 degrees (calculated by R = 6D); maximum thrust 6000 kN; advancing speed of 0.2 to 4 mm / sec; fast forward, rewind speed of 60 mm / s; working stroke 10,000 mm. Zhenjiang stainless steel pipe fittings, stainless steel pipe, Bo Yan Pipe (view) provided by the Yanshan Xian Yan Bo Industry Co., Ltd. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) strong, credible, Cangzhou in Hebei elbow industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Bo rock pipe industry into the brilliant and you work for a better future!