Pipe expansion joint. Point:
1、 It can reduce the transmission noise of the structure and has strong vibration absorption capacity.
2、 Small size, light weight, good elasticity, easy installation and maintenance.
3、 During installation, axial, transverse, longitudinal and angular displacement can be generated, which is not limited by the user's pipeline non centering and flange non parallelism.
4、 The special synthesis can resist high temperature, acid and alkali, and oil. It is an ideal product for chemical corrosion resistant pipelines. The main points of metal pipe expansion device are large expansion compensation, high temperature and pressure. There are strict regulations for installing the steel expansion joint. Pay attention to the setting and stress of the fixed support during installation, and the expansion end of the expansion joint shall not be pulled out due to the cracking of the fixed support when pressing; The installation must be designed by the design department, otherwise the pipeline is prone to problems. Pay attention to the setting distance of the guide bracket. A guide bracket should be installed 4D (4 times) away from the compensator,
Two guide brackets should be installed 14D away from the compensator, and three points can be set arbitrarily. The expansion valve can relieve the thrust of the blind plate during pipeline operation. However, at the pump outlet and pipe corner, in the sliding pipeline connection without fixed buttress, infinite buttress and directional limit buttress support, the force transfer valve and limit force transfer valve should be used to avoid the thrust concentrated at the pipe corner or near end of the pump, causing impact force damage to the equipment. In fact, in the use of various pipelines, or limit expansion devices (expansion joints) and anti pull off limit valves are used to protect pipelines to a certain extent, especially to provide great convenience for the installation and maintenance of pipelines. The limit expansion valve and clamp flexible valve can be used, because the force transmission valve can transmit the thrust of the blind plate when starting the pump to various parts of the pump and pipeline through the force transmission bolt (i.e. full thread bolt), expansion valve, force transmission valve, expansion joint (expansion joint) and valve, clamp flexible valve (clamp valve for short) And quick valves have a common role in pipeline connection, and play a role in expansion compensation displacement for pipeline operation. Shanghai Dongfeng Pump Valve Factory produces expansion valves and strives for excellence, which makes major customers praise! Welcome to call the free consultation telephone: 18521350330 Cuigong 400-672-2008, we will provide sincere service!