What is a metal bellow?
Metal bellows expansion joints are very versatile because they manufactured with different tensile strength, chemical and physical properties. At the time of manufacturing metal bellows in a bellows machine, there are a variety of materials to choose from. Each material has its own advantages, use, depending on the metal bellows application.
Whether it is for the purpose of flight control, safety, firing mechanism, pipes, the bellows plays a crucial role in the efficiency of the various industries. They are presented as the most flexible tool for many types of industries. These circular tubes are too flexible to expand or compress under pressure. In addition, they also have sufficient capacity to absorb a lot of heat and can remain in good condition for a long time. The bellows material in plastic, steel, rubber or fiber usually depends on its purpose.
Why bellows are used?
In most cases, metal expansion bellows helps absorb vibration and absorb movement when transferring high temperature products such as exhaust fumes, electricity, etc. In addition, they are useful for other purposes, such as. Regulation and earthquake movement. Bellows also work as a helper for any high pressure or high performance process. They are also very useful when it comes to minimizing the process and by-products. Some key accessories needed to effectively use the bellows are: liners, covers, particle barriers or flushing connections, and perimeter bars.
Metal bellows are widely used in mechanical and hydraulic applications. The mechanical operation uses bellows fill with a known liquid that depends on compressing or expanding to temperature changes. The liquid expansion will take place in a predictable way. The response percentage and the bellows can be used to provide accurate positioning in a machine assembly. Equivalent to thermal activation, a pressure change can be used to compress or control Bellows extension a mechanical operation.
One of the interesting applications of Bellows is used for the rotating display. Because of the low weight and the rotation stiffness while it remains flexible their main axis, the bellows that are connected to their ends with waves, that is not well aligned or linear, radial or the angle change can be used as coupling or rotation indicator.
The shape of the bellows makes it is possible for efficient transmission of the rotation energy without problems found in the claws. Encode this kind of bellows because they depend on the accuracy of rotation.
Metal bellows are also used hydraulic applications are positive displacement pumps, valve seals, and volume and fluid compensation electrical applications. Metal bellows prevent leakage without this being necessary-rings. If it is used as flexible they offer pumps hermetic seals without friction loss of force, which are higher printing efficiency.
They can finally do that is used as a traditional mechanics. To prevent seals on an actuator Pollution from the grooves of the tree.
Metal bellows accumulators in the oil and gas industry are hydropneumatic accumulators with metal bellows as a separating element between the compressible gas cushion and the working fluid. The separating element is designed as a bellows or as a metal bellows.
Metal Compensators (MEJs) are also known as metal or metal bellows or bellows. An expansion joint / bellows element used in a piping system is an assembly of more than one fold in series with the shape of the bend to withstand internal pressures. Thermal expansion, mechanical vibration of pumps, traction fans, compressors, turbines, motors, tanks and other equipment, but sufficiently flexible to allow axial, lateral and angular deflections.
Axial compensators are designed to absorb axial expansion and compression movements. The length of the extension in neutral position is called free length. The longest life is achieved by using axial displacement in both directions as extension and compression. In a unilateral direction, we suggest to install the compensator under “bias”. The life of the compensators depends on the correct installation.