Do you know the maintenance of flange? Come and collect!
Release time:
Mar 23,2023
From the perspective of future development trends, flanges will continue to play an important role in various industries. For industries such as oil and gas, due to their complex pipeline structures, they require a large number of flange connections. Therefore, it is inseparable from the development trend of the industry. For the refrigeration industry, due to the particularity of the refrigeration pipeline, its development will also drive the use of flanges. There is also the electrical industry, the electrical industry will gradually develop new types of flanges, which have good insulation properties, corrosion resistance, etc., and can meet the needs of the electrical industry.
Flange is a metal structure used to connect pipe fittings or mechanical components. It uses a pair of parallel dish-shaped surfaces to be connected by bolts under compression to make the connection firm and durable. Its principle is very simple and can be roughly divided into the following three steps: First, the installer places the flange and the pipe together to ensure that all components are on the same plane to ensure the integrity of their connections. The installer then fixes the flanges to the pipe by means of fixing bolts to form a secure connection between them. After that, the installer will tighten the bolts on it to ensure close contact between the dish-shaped surfaces on both sides, so that it can be firmly connected together.
Flange is a kind of fluid connector and adapter, which has many advantages and features: 1. It can easily seal and connect two pipes. 2. Its structure is compact, does not occupy space, and reduces the installation space of the pipeline. 3, its surface is generally sprayed with plastic coating to prevent corrosion. 4. It adopts high-strength bellows and can be installed under any possible pipeline working conditions. 5. Its installation method is simple and quick, convenient and quick to install and disassemble, greatly reducing the installation cost. 6, its sealing performance is very good, can provide sufficient elasticity and reset force, will not produce leakage. 7. It can adjust the fastening tightness and sealing state of the joint according to the actual working conditions.
In order to maintain good performance and service life of the flange for a long time, the following maintenance needs to be done:
1. After installation, it should be checked regularly to see if there is looseness, deformation, and whether the bolts, gaskets and other parts are loose.
2. When the joint is deformed or broken, it should be replaced with a new part in time and cannot be replaced at will.
3. In the maintenance process should use the correct tools for disassembly, so as not to damage it.
4. When disassembling, avoid bad local pressure to avoid damaging its shell.
5. During maintenance, the flange interface should be kept clean to prevent corrosion.
It should be avoided to be exposed to high temperature and high pressure environment, so as not to damage its performance.
7. If it is not used for a long time, it should be disassembled in time to avoid deformation due to shrinkage.
8. If you use it in winter, you should pay attention to check its freezing condition and deal with it in time by heating or other methods.
For stress-sensitive fasteners, the torque should be re-adjusted during maintenance to ensure the fastening effect.
10. Appropriate sealants should be used at threaded connections to prevent water leakage from causing damage to the piping system.
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