Burst Pressure Value of Stainless Steel Hose
Stainless steel hose is a pipe fitting that conveys various fluids as the core element of bellows. The nature of its work is to compensate for pipelines and pipelines, pipelines and equipment, and connections between equipment and equipment. The stainless steel hose uses its bending disturbance to compensate for the position deviation caused by the installation of the pipeline system, and to bear the relative displacement required for the two disconnected junctions to work very well. In some pipeline systems, it also played a role in reducing vibration and eliminating noise.
For the outer armored metal wire or the machine with braided mesh sleeve, the slenderness ratio is greater than or equal to 3, and the ring or spiral corrugated pipe is called stainless steel hose. In Europe and the United States, it is customary to call it Flexible Tube, Corrugated Hose, or Stainless Steel Hose.
In complex piping systems, limitations due to space location premises often arise, causing various difficulties in installation work. The formed pipe cannot be installed. Bend over and come over. It is impossible to avoid the installed pipe. Generate local cold correction. Depending on the pipe diameter and the details on site, the amount of cold correction ranges from a few millimeters to tens of millimeters, and some reaches hundreds of millimeters. Practice has confirmed that the larger the amount, the higher the internal stress, and these residual installation stresses in the pipeline system are undoubtedly a great hidden danger. Because the stainless steel hose can be bent at will and the internal stress generated by bending under the premise of the rated bending radius is very small, it can bring great convenience to the installation work and have an effect on the safe operation of the pipeline system. This is the main reason why stainless steel hoses are necessary for some piping systems.
Stainless steel hose
Fueling of cars, trains, airplanes, injection of acetylene gas liquefied gas, operation of drying drums of paper machines, printing and dyeing machines, etc., there are problems of displacement compensation, which need to be solved with flexible pipes. According to the old design ideas, these mostly use copper-coiled serpentine tubes or rubber tubes. Because they have some problems at different levels, they often bring difficulties to the production and maintenance of the industry. The good comprehensive function of stainless steel hose is fully reflected here. In the general industrial field, in addition to pressure and temperature, there are often harsh conditions such as fatigue, erosion, vibration, pressure, impact, etc. Under such circumstances, the use of stainless steel hoses to compensate for the movement of the pipeline is Suitable.
There are many classification methods for stainless steel hose, according to the following: stainless steel is resistant to corrosion, carbon steel is not resistant to corrosion. According to the combination form of the assembly, there are: mechanical clamps are machine clamps, and welding combinations are welding. According to the pressure level, there are: for the machinery manufacturing industry: 0-2.5Mpa is low pressure, 2.5-16Mpa is medium pressure, and 16-32Mpa is high pressure. For the petrochemical industry, 0-1.6Mpa is low pressure, 1.6-10Mpa is medium pressure, and 10-100Mpa is high pressure. Divided by service scope: aerospace, aviation, shipbuilding, nuclear engineering, petrochemical, steel, construction, light industry. According to the connection type, there are: ball joints, takeovers, flanges, taper pipe threaded quick joints and so on.
Vibration under the premise of the operation of compression machinery and equipment may cause early failure of its weak parts. If the vibration is conducted along the pipeline to other parts, it may cause system resonance and damage other parts. Not only that, because the noise generated by vibration will also have a great impact on people’s physical and mental health. Therefore, it is an important hub for the design of compression machinery to control the vibration of the equipment under the premise of operation and prevent it from being conducted along the pipeline.
The accuracy of the installation of stainless steel hose has a great impact on its safe use. In actual engineering applications, inaccurate installation may not only cause early failure of stainless steel hoses, but also may cause major personal equipment accidents and product quality accidents. Therefore, in the process of installation and use of stainless steel hoses, erroneous manipulation methods such as strong twisting, strong pulling, friction, conflict, acting as a steel cable lifting weight, crowbar applying force directly on the flexible section, etc. should be avoided.
