Flange connection and clamp connection are common pipe connection methods. They each have unique characteristics and applicable scenarios, and there are also some obvious differences.
I. Characteristics of flange connection
1. The structure is complex but stable: the flange is connected through two pipes or equipment with flanges, and then the flange is bolted to form a whole. The structure is relatively complex, but the connection is more stable.
2. Excellent sealing performance: the sealing gasket between flanges can effectively prevent media leakage and ensure the safety and stability of the connection. The materials of flange gaskets will also be selected according to the pressure level, from low-pressure asbestos pads, high-pressure asbestos pads and tetrafluoro pads to metal pads.
3. Wide scope of application: flange connection can be applied to pipe connection of various pipe diameters, pressures and temperatures, especially in high pressure, high temperature, corrosion and other harsh environments. When choosing a flange, factors such as the pH of the medium should also be considered.
4. Easy to disassemble: Although the installation process is relatively complicated, the flange connection is also convenient when disassembly, just loosen the bolts.
II. Characteristics of clip connection
1. Simple structure: the clamp connection is mainly clamped through two symmetrical fixtures to realize the connection. The fixture is usually fixed by bolts or other fasteners, which is convenient for adjustment and disassembly.
2. Convenient installation: Due to its simple structure, you only need to point the fixture at the pipe or equipment, and then tighten the bolts to complete the installation without the need for professional tools and professionals.
3. Low cost: The cost of the accessories connected by the clip is relatively low, and the speed of installing and disassembling accessories is relatively fast, and the corresponding maintenance cost is also low.
4. The applicable scenarios are limited: the clamp connection is mainly suitable for scenarios with low pressure, low temperature and low requirements for sealing performance, such as drainage pipes. At the same time, there are high requirements for the medium, such as good lubrication of the medium, smooth surface without scratches and depression. Generally speaking, the clamp connection is suitable for pipes with a diameter of less than DN50.
III. The difference between flange connection and clamp connection
1. Structural complexity: The structure of flange connection is relatively complex, while the structure of clamp connection is relatively simple.
2. Sealing performance: The sealing performance of flange connection is better than that of clamp connection, especially in high-pressure and high-temperature environments.
3. Installation convenience: the clip connection is highly convenient in the installation process, while the flange connection needs to be more accurately docked with the flange plate and ensure that the sealing gaskets between the flanges are placed correctly, so the installation process is relatively complicated.
4. Scope of application: The flange connection is suitable for pipeline connection in various harsh environments, while the clamp connection is mainly suitable for low-pressure, low-temperature and low-requirement of sealing performance.
5. Cost and maintenance: The cost of the clip connection is relatively low, and the maintenance cost is also low; while the flange connection requires accurate construction technology and precision equipment during construction, so the investment in manpower, material resources and time is large, and the maintenance cost is correspondingly higher.
The flange connection and the clamp connection have their own characteristics and applicable scenarios. When choosing the connection method, it should be considered comprehensively according to specific needs and actual working conditions to ensure the safety and reliability of pipeline or equipment connection.
