Corrugation compensator is a kind of compensating element, also known as expansion joint, expansion device. The main purpose is to ensure the safe operation of pipelines. The bellows compensator is composed of bellows, end tubes, brackets, flanges and catheters. Mainly used in a variety of pipelines, to compensate for the thermal displacement of pipelines, mechanical deformation and absorption of various mechanical vibration, play a role in reducing the deformation stress of pipelines and improving the service life of pipelines. There are two connection modes of corrugated compensator, flange and welding. The direct buried pipeline compensator usually adopts welding mode. Corrugation compensator is divided into JDZ internal pressure axial corrugation compensator, axial single corrugation compensator, welding corrugation compensator, wear-resistant lined corrugation compensator and tetrafluoro corrugation compensator. Internal pressure axial corrugated compensator is composed of a corrugated pipe and two end joints. It absorbs the axial displacement of the pipeline by flexible deformation of the corrugated pipe. The two ends of the pipe are connected with the pipeline, and the fixed stud is the rigid support of the corrugated pipe to ensure the compensator in the transportation process. Axial internal pressure ripple compensator is mainly used to compensate the axial displacement, but it can also compensate the lateral displacement or the combined axial and transverse displacement. It has the ability to compensate the angular displacement, but generally it should not be used to compensate the angular displacement. Welded corrugated compensator is one of the most advanced products in the category of corrugated compensator. The quality of welding directly affects the quality of pipeline installation, and the technical requirements are relatively high. After spot welding, the quality of each welding joint should be checked. If there are defects, spot welding should be re-welded immediately to eliminate the shortcomings. Tetrafluoride liner compensator, through special processing method, has changed the characteristics that the pipeline can not be twisted in the past. It can withstand various concentrations of acid, alkali and salt, as well as the pressure of stainless steel compensator. It has the advantages of not afraid of collision. Over the past few years, our Gongyi Hongsheng Pipeline Equipment Co., Ltd. has continuously developed new products, improved product quality, done a lot of research and experiments, put forward a new product structure, greatly improved the performance of the products, and won the praise of the vast number of users. If special specifications of products are needed, they can be designed and manufactured according to user's requirements. And sincerely hope that new and old customers, design units recommend the use of our company's products.